Tektronix DTM500 Series Technical Reference
  1. Manuals
  2. Brands
  3. Tektronix Manuals
  4. Measuring Instruments
  5. DTM500 Series
  6. Technical reference

Tektronix DTM500 Series Technical Reference

Hide thumbs
Table of Contents

Advertisement

Quick Links

Technical Reference
Handheld and Benchtop Instruments
Basic Service
061-4108-00
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.

Advertisement

Table of Contents
loading

Related Manuals for Tektronix DTM500 Series

Summary of Contents for Tektronix DTM500 Series

  • Page 1 Technical Reference Handheld and Benchtop Instruments Basic Service 061-4108-00 Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to all safety summaries prior to performing service.
  • Page 2 Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000...
  • Page 3 Service information not provided in this manual may be available under separate cover. See Table i for a complete list of Handheld and Benchtop Instruments service documentation. Table i: Handheld and Benchtop Instruments Service Manuals Product Tektronix Part Number 212 Oscilloscope 070-5053-00 214 Oscilloscope 070-5055-00...
  • Page 4 Handheld and Benchtop Instruments Service Reference Table i: Handheld and Benchtop Instruments Service Manuals (Cont.) Product Tektronix Part Number 2245 Portable Oscilloscope 070-6276-00 2245A Portable Oscilloscope: B010100 to B015999 070-6557-00 B016000 and above 070-7672-00 2246A Portable Oscilloscope 070-6555-00 2246/1Y/2R/2246 Mod A...
  • Page 5 General Safety Summary Review the following safety precautions to avoid injury and prevent damage to the products in this manual or any products connected to them. To avoid potential hazards, use these products only as specified. Only qualified personnel should perform service procedures. While using these products, you may need to access other parts of the system.
  • Page 6 General Safety Summary Do Not Operate Without Covers. Do not operate these products with covers or panels removed. Use Proper Fuse. Use only the fuse type and rating specified for the product you are using. Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.
  • Page 7 General Safety Summary Symbols on the Product. The following symbols may appear on the product: DANGER Protective Ground ATTENTION Double High Voltage (Earth) Terminal Refer to Manual Insulated Handheld and Benchtop Instruments Basic Service...
  • Page 8 Service Safety Summary Only qualified personnel should perform service procedures. Read this Service Safety Summary and the General Safety Summary before performing any service procedures. Do Not Service Alone. Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present.
  • Page 9 Preventing Electrostatic Discharge CAUTION. Static discharge can damage internal semiconductor components. Follow the guidelines listed below to avoid product damage. When performing service that requires internal access to an instrument, adhere to the following precautions to avoid damaging internal modules or their compo- nents: Avoid handling modules or components in areas that have floors or work surfaces capable of generating a static charge.
  • Page 10 Preventing Electrostatic Discharge viii Handheld and Benchtop Instruments Basic Service...
  • Page 11 Some instruments have optional service information available under separate cover. This manual does not duplicate information from optional service manuals. Refer to the optional accessories list in your user manual for Tektronix part numbers of optional service manuals. A list of Handheld and Benchtop instruments manuals can also be found on Page i.
  • Page 12 For product support outside of North America, contact your local Tektronix distributor or sales office. Service Contact your local Tektronix distributor or sales office. Or visit Support our web site for a listing of worldwide service locations. http://www.tek.com For other...
  • Page 13 Instructions Manual DCM300 and DCM320 Digital Clamp Multimeters 070-9847-00...
  • Page 14 Table of Contents DCM300 and DCM320 Digital Clamp Multimeters ....Specifications ..........Performance Verification .
  • Page 15 Table of Contents Handheld and Benchtop Instruments Basic Service...
  • Page 16 DCM300 and DCM320 Digital Clamp Multimeters The DCM300 and DCM320 Digital Clamp Multimeters measure AC current, AC voltage, and resistance/continuity. The meters use a current transformer to measure current without opening the circuit. The meters automatically select the correct measurement range and have a 4000 count resolution.
  • Page 17 DCM300 and DCM320 Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in a 0 to 45 C ambient environment unless otherwise noted. The instrument warms up for at least 20 minutes. NOTE. All specifications are warranted unless marked “typical.” Typical characteristics are not guaranteed but are provided for the convenience of the user.
  • Page 18 DCM300 and DCM320 Specifications Table 1: Electrical Characteristics (Cont.) Characteristic Description Resistance, Auto ranging (meter beeps if resistance is <100 Ranges 4 k and 40 k Overload Protection 600 V Resolution 4 k Range 40 k Range Accuracy (2.0% of reading + 9 digits) Maximum Open Circuit Voltage Table 2: General Specifications Characteristic...
  • Page 19 DCM300 and DCM320 Specifications Table 4: Environmental Characteristics Characteristic Description Temperature Operating 0 to 45 C (32 to 113 F), <75% relative humidity Nonoperating –20 to +60 C (–4 to 140 F), <80% relative humidity Temperature Coefficient 0.2% (specified accuracy) per C at <18 C (64 F) or >28 C (82 F) Maximum Altitude (Operating) 2,200 m (7,218 ft.) Handheld and Benchtop Instruments Basic Service...
  • Page 20 DCM300 and DCM320 Performance Verification Performance Verification This section contains procedures to verify that the DCM300 and DCM320 Digital Clamp Multimeters perform as warranted. If an instrument fails any of the checks, it needs adjustment and or repair. The performance verification procedures provide a valid confirmation of instrument electrical characteristics and function under the following conditions: The instrument operates in an 18 to 28 C ambient environment with a relative humidity of less than 75%.
  • Page 21 DCM300 and DCM320 Performance Verification Table 6: Test Equipment Description Minimum Requirements Example Product Wavetek 9100 with option 200 AC Current Calibrator >0.5% accuracy, 0 to 400 A current multiplier coils or Fluke >0.7% accuracy, 400 to 600 A 5500A with Wavetek X10 and 5500A with Wavetek X10 and X50 Current multiplier Coils AC Voltage Calibrator...
  • Page 22 DCM300 and DCM320 Performance Verification 5. Verify that the multimeter display reads within the specified Low and High Limits for each of the specified conditions. 6. Disconnect the calibrator. AC Voltage Check To check the AC voltage accuracy, perform the following steps. WARNING.
  • Page 23 DCM300 and DCM320 Performance Verification Test Records Serial Number Procedure performed by Date Table 7: AC Current Checks AC Current Calibrator Output Test Frequency Tolerance Low Limit Test Result High Limit 0.5 A 00.0 00.5 10.0 A 50 Hz 0.7 A 09.3 10.7 60 Hz...
  • Page 24 DCM300 and DCM320 Performance Verification Table 9: Resistance Checks Resistance Calibrator Output Tolerance Low Limit Test Result High Limit Buzzer must sound Buzzer must sound 1.000 k 0.029 k 1.029 k 3.700 k 0.083 k 3.617 k 3.783 k 39.00 k 0.87 k 38.13 k 39.87 k...
  • Page 25 DCM300 and DCM320 Adjustment Procedures Adjustment Procedures This section contains procedures to adjust DCM300 and DCM320 Digital Clamp Multimeters. If your instrument fails a performance requirement, use these procedures to return it to factory specifications. In this section you will find the following information: A list of adjustments A list of test equipment needed to make the adjustments Instructions on how to prepare the instrument for adjustment...
  • Page 26 DCM300 and DCM320 Adjustment Procedures Preparation for Adjustment The following guidelines apply to all DCM300 & DCM320 adjustments. Perform all adjustments in a 21 to 25 C ambient environment with a relative humidity of 75% or less. Before making any adjustment, warm up the multimeter for 20 minutes. Do not alter any setting without reading the entire adjustment procedure first.
  • Page 27 DCM300 and DCM320 Adjustment Procedures 4. Position the clamp around the current loop of the AC current calibrator and release the clamp trigger. Ensure that the clamp is entirely closed. 5. Adjust VR2 with a small flat-tipped screwdriver; set the multimeter reading to 100.0.
  • Page 28 DCM300 and DCM320 Adjustment Procedures 3. Place the bottom cover back on the meter and hold it in place. (The continuity buzzer will not sound during the following adjustments without the cover in place.) 4. If the buzzer does not sound, use a small flat-tipped screwdriver to adjust VR4 until the buzzer sounds.
  • Page 29 DCM300 and DCM320 Adjustment Procedures Table 11: Summary of Adjustments Adjustment Circuit Name Location Test Value Range Setting Tolerance Display Min Display Max AC Current 100.0 A 50 Hz 1.0 A 99.0 101.0 AC Volts 300.0 V 500 Hz (DCM300) 0.3 V 299.7 300.3...
  • Page 30 Instructions Manual DCM330 Digital Clamp Meter 070-9848-00...

  • Page 31: Table Of Contents

    Table of Contents DCM330 Digital Clamp Meter ....... . Specifications .
  • Page 32 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 33: Dcm330 Digital Clamp Meter

    DCM330 Digital Clamp Meter The DCM330 Digital Clamp Meter measures DC current, AC current, and frequency. The meter uses a Hall-effect device to measure current without opening the circuit. The meter automatically selects the correct measurement range and has a 4000 count resolution.

  • Page 34: Specifications

    DCM330 Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in a 0 to 50 C (32 to 122 F) ambient environ- ment unless otherwise noted. The instrument warms up for at least 20 minutes. NOTE.
  • Page 35 DCM330 Specifications Table 1: Electrical Characteristics (Cont.) Characteristic Description Accuracy 0 A to 20 A (1.9% of reading + 10 counts) 20.1 A to 400 A (1.9% of reading + 40 counts) 401 A to 1000 A (2.9% of reading + 5 counts) Frequency, Auto Ranging Ranges 4 kHz and 10 kHz...
  • Page 36 DCM330 Specifications Table 3: Certifications and Compliances Certifications Canadian Standards Association certified to Standard CSA 1010.1, Standard UL3111-1 for Electrical and Electronic Measuring and Testing Equipment, and I C 0 0- -03 IEC1010-2-032 particular requirements for hand-held current clamps for electrical measurement and test.

  • Page 37: Performance Verification

    DCM330 Performance Verification Performance Verification This section contains procedures to verify that the DCM330 Digital Clamp Meter performs as warranted. If an instrument fails any of the checks, it needs adjustment and or repair. The performance verification procedures provide a valid confirmation of instrument electrical characteristics and function under the following conditions: The instrument operates in an 18 to 28 C (64 to 82 F) ambient environment with a relative humidity of less than 75%.

  • Page 38: Set Up

    DCM330 Performance Verification Table 6: Test Equipment Description Minimum Requirements Example Product Wavetek 9100 with Option AC/DC Current Calibrator >0.5 % accuracy 0 to 400 A 200 current multiplier coils >0.7 % accuracy 400 to 1000 A Set Up To prepare for the performance verification checks, do the following. 1.
  • Page 39 DCM330 Performance Verification DC Current Check To check the DC current accuracy, perform the following steps. 1. Set the meter function to DC. 2. In the absence of any magnetic fields, press the DCA AUTO ZERO button to zero the meter. 3.
  • Page 40 DCM330 Performance Verification Frequency Check To check the frequency accuracy, perform the following steps. 1. Set the meter function to Hz. 2. Select the appropriate coil as necessary to multiply the AC Current calibrator output to 20 A. 3. Position the clamp around the current loop of the AC current calibrator and release the clamp trigger.

  • Page 41: Test Records

    DCM330 Performance Verification Test Records Serial Number Procedure performed by Date Table 7: AC Current Checks AC Current Test Frequency Tolerance Low Limit Test Result High Limit 0.0 A 0.8 A –00.8 00.8 10.0 A 50 Hz 1.0 A 0.90 11.0 400 Hz 1.0 A...
  • Page 42 DCM330 Performance Verification Table 8: DC Current Checks DC Current Tolerance Low Limit Test Result High Limit 0.0 A 1.0 A –1.0 01.0 10.0 A 1.2 A 08.8 11.2 100.0 A 4.9 A 95.1 104.9 300.0 A 9.7 A 290.3 309.7 400 A 12 A...

  • Page 43: Adjustment Procedures

    DCM330 Adjustment Procedures Adjustment Procedures This section contains procedures to adjust the DCM330 Digital Clamp Meter. If your instrument fails a performance requirement, use these procedures to return it to factory specifications. In this section you will find the following information: A list of adjustments A list of test equipment needed to make the adjustments Instructions on how to prepare the instrument for adjustment...

  • Page 44: Preparation For Adjustment

    DCM330 Adjustment Procedures Preparation for Adjustment The following guidelines apply to all DCM330 adjustments. Perform all adjustments in a 21 to 25 C ambient environment with a relative humidity of 75% or less. Before making any adjustment, warm up the current meter for at least 30 minutes.
  • Page 45 DCM330 Adjustment Procedures Short for Auto Zero (VR2) Short for Peak Hold (VR9) VR10 Figure 2: Adjustment Locations Position Error The adjust the position error calibration, perform the following steps. 1. Set the clamp meter to the AC position. 2. Select the appropriate coil to multiply the output of the AC current calibrator to 380 A at 50 Hz.
  • Page 46 DCM330 Adjustment Procedures 3. Adjust VR2 until the display reads 00.0 5 counts. 4. Remove the short. 5. Press the clamp meter DCA AUTO ZERO button to zero the display. 6. Adjust VR3 until the display reads 00.0. DC 400 A Range To adjust the DC 400 A range calibration, perform the following steps.
  • Page 47 DCM330 Adjustment Procedures 4. Position the clamp to the center of the coil. 5. Adjust VR8 until the display reads 396.0. To keep the meter on the lower range, it may be necessary to cycle the calibrator output off and on. 6.
  • Page 48 DCM330 Adjustment Procedures 14. Remove the clamp meter from the coil. 15. Reassemble the meter. Table 11: Summary of Adjustments Adjustment Circuit Name Location Mode Test Value Frequency Tolerance Display Min. Display Max. Position Error 380 A 50 Hz <5 counts 0 count 5 counts DC Zero...
  • Page 49 Instructions Manual DCM910 Digital Clamp Meter 070-9849-00...
  • Page 50 Table of Contents DCM910 Digital Clamp Meter ....... . Specifications .
  • Page 51 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 52: Dcm910 Digital Clamp Meter

    DCM910 Digital Clamp Meter The DCM910 Digital Clamp Meter measures DC current, AC current, and frequency. The meter uses a Hall-effect device to measure current without opening the circuit. The meter automatically selects the correct measurement range and has a 4000 count resolution.

  • Page 53: Specifications

    DCM910 Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in a 0 to 50 C (32 to 122 F) ambient environ- ment unless otherwise noted. The instrument warms up for at least 20 minutes. NOTE.
  • Page 54 DCM910 Specifications Table 1: Electrical Characteristics (Cont.) Characteristic Description Accuracy 0 A to 20 A (1.9% of reading + 10 counts) 20.1 A to 400 A (1.9% of reading + 40 counts) 401 A to 1000 A (2.9% of reading + 5 counts) Frequency, Auto Ranging Ranges 4 kHz and 10 kHz...
  • Page 55 DCM910 Specifications Table 3: Certifications and Compliances Certifications Canadian Standards Association certified to Standard CSA 1010.1, Standard UL3111-1 for Electrical and Electronic Measuring and Testing Equipment, and I C 0 0- -03 IEC1010-2-032 particular requirements for hand-held current clamps for electrical measurement and test.

  • Page 56: Performance Verification

    DCM910 Performance Verification Performance Verification This section contains procedures to verify that the DCM910 Digital Clamp Meter performs as warranted. If an instrument fails any of the checks, it needs adjustment and or repair. The performance verification procedures provide a valid confirmation of instrument electrical characteristics and function under the following conditions: The instrument operates in an 18 to 28 C (64 to 82 F) ambient environment with a relative humidity of less than 75%.

  • Page 57: Set Up

    DCM910 Performance Verification Table 6: Test Equipment Description Minimum Requirements Example Product Wavetek 9100 with Option AC/DC Current Calibrator >0.5 % accuracy 0 to 400 A 200 current multiplier coils >0.7 % accuracy 400 to 1000 A Set Up To prepare for the performance verification checks, do the following. 1.
  • Page 58 DCM910 Performance Verification DC Current Check To check the DC current accuracy, perform the following steps. 1. Set the meter function to DC. 2. In the absence of any magnetic fields, press the DCA AUTO ZERO button to zero the meter. 3.
  • Page 59 DCM910 Performance Verification Frequency Check To check the frequency accuracy, perform the following steps. 1. Set the meter function to Hz. 2. Select the appropriate coil as necessary to multiply the AC Current calibrator output to 20 A. 3. Position the clamp around the current loop of the AC current calibrator and release the clamp trigger.

  • Page 60: Test Records

    DCM910 Performance Verification Test Records Serial Number Procedure performed by Date Table 7: AC Current Checks AC Current Test Frequency Tolerance Low Limit Test Result High Limit 0.0 A 0.8 A –00.8 00.8 10.0 A 50 Hz 1.0 A 09.0 11.0 400 Hz 1.0 A...
  • Page 61 DCM910 Performance Verification Table 8: DC Current Checks DC Current Tolerance Low Limit Test Result High Limit 0.0 A 1.0 A –01.0 01.0 10.0 A 1.2 A 08.8 11.2 100.0 A 4.9 A 95.1 104.9 300.0 A 9.7 A 290.3 309.7 400 A 12 A...

  • Page 62: Adjustment Procedures

    DCM910 Adjustment Procedures Adjustment Procedures This section contains procedures to adjust the DCM910 Digital Clamp Meter. If your instrument fails a performance requirement, use these procedures to return it to factory specifications. In this section you will find the following information: A list of adjustments A list of test equipment needed to make the adjustments Instructions on how to prepare the instrument for adjustment...

  • Page 63: Preparation For Adjustment

    DCM910 Adjustment Procedures Preparation for Adjustment The following guidelines apply to all DCM910 adjustments. Perform all adjustments in a 21 to 25 C ambient environment with a relative humidity of 75% or less. Before making any adjustment, warm up the current meter for at least 30 minutes.
  • Page 64 DCM910 Adjustment Procedures Short for Auto Zero (VR2) Short for Peak Hold (VR9) VR10 Figure 2: Adjustment Locations Position Error The adjust the position error calibration, perform the following steps. 1. Set the clamp meter to the AC position. 2. Select the appropriate coil to multiply the output of the AC current calibrator to 380 A at 50 Hz.
  • Page 65 DCM910 Adjustment Procedures 3. Adjust VR2 until the display reads 00.0 5 counts. 4. Remove the short. 5. Press the clamp meter DCA AUTO ZERO button to zero the display. 6. Adjust VR3 until the display reads 00.0. DC 400 A Range To adjust the DC 400 A range calibration, perform the following steps.
  • Page 66 DCM910 Adjustment Procedures 4. Position the clamp to the center of the coil. 5. Adjust VR8 until the display reads 396.0. To keep the meter on the lower range, it may be necessary to cycle the calibrator output off and on. 6.
  • Page 67 DCM910 Adjustment Procedures 14. Remove the clamp meter from the coil. 15. Reassemble the meter. Table 11: Summary of Adjustments Adjustment Circuit Name Location Mode Test Value Frequency Tolerance Display Min. Display Max. Position Error 380 A 50 Hz <5 counts 0 count 5 counts DC Zero...
  • Page 68 Instructions Manual DMM800 Series Digital Multimeters 070-9850-00...
  • Page 69 Table of Contents DMM800 Series Digital Multimeters ......Specifications ..........Performance Verification .
  • Page 70 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 71: Dmm800 Series Digital Multimeters

    DMM800 Series Digital Multimeters The Tektronix DMM800 Series digital multimeters provide many features. Table 1 lists the features of each meter for easy comparison. Figure 1: DMM870 Digital Multimeter Table 1: DMM800 Series Digital Multimeter Features Feature DMM830 DMM850 DMM870...
  • Page 72 DMM800 Series Digital Multimeters Table 1: DMM800 Series Digital Multimeter Features (Cont.) Feature DMM830 DMM850 DMM870 Resistance Frequency Diodes and capacitors Continuity Duty factor Temperature Decibel AC volts and amps with Hz display Measurement hold Peak hold Minimum, maximum, and average values M/M/A time stamp Delta mode HI/LO limits...

  • Page 73: Specifications

    DMM800 Series Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in an 18 to 28 C ambient environment at less than 75% relative humidity. The batteries are adequately charged (the battery indicator does not display). NOTE.
  • Page 74 DMM800 Series Specifications Table 3: Measurement Characteristics Characteristic Description DC voltage V ranges 4 V, 40 V, 400 V, 1000 V mV range 400 mV Accuracy (% + 10 counts) DMM830 DMM850 DMM870 0.2% 0.1% 0.06% AC voltage Ranges 4 V, 40 V, 400 V, 750 V Accuracy (% + 40 counts) DMM830...
  • Page 75 DMM800 Series Specifications Table 3: Measurement Characteristics (Cont.) Characteristic Description Compliance voltages (typical) 1 V ( setting) 0.4 V (LV setting) Continuity threshold Beeper sounds when resistance is approximately 75 or less Diode test Test current (typical) 0.6 mA Test voltage (typical) Capacitance Ranges 4 nF, 40 nF, 400 nF, 4 F, 40 F, 400 F, 4 mF, 40 mF...
  • Page 76 DMM800 Series Specifications Table 4: Physical Characteristics Characteristic Description Dimensions Without holster 32 mm 86 mm 185 mm (H W D) Weight With battery 370 g (13 oz.) With battery and holster 600 g (21.2 oz.) Table 5: Environmental Characteristic Characteristic Description Temperature...
  • Page 77 DMM800 Series Specifications Table 6: Certifications and Compliance (Cont.) Characteristic Description Overvoltage category CAT III: Distribution level mains, fixed installation CAT II: Local level mains, appliances, portable equipment CAT I: Signal level, special equipment or parts of equipment, telecommunication, electronics Pollution Degree 2 Do not operate in environments where conductive pollutants may be present.

  • Page 78: Performance Verification

    DMM800 Series Performance Verification Performance Verification This section contains procedures to verify that the DMM830, DMM850, and DMM870 Digital Multimeters perform as warranted. If an instrument fails any of these checks, it needs adjustment and or repair. The performance verification procedures provide a valid confirmation of instrument electrical characteristics and function under the following conditions: The multimeter operates in an 18 to 28 C (64 to 82 F) ambient environment with a relative humidity of less than 75%.

  • Page 79: Test Equipment

    AC and DC volts measurement AC and DC current measurement Resistance measurement Capacitance measurement Sinewave generation Squarewave generation Thermocouple adapter K Type Tektronix ATK01 Capacitance Standard Optional Choose 4-wire measurement setup if available. Handheld and Benchtop Instruments Basic Service...

  • Page 80: Set Up

    DMM800 Series Performance Verification Set Up To prepare for the performance verification checks, do the following steps. 1. Allow the multimeter to stabilize at the ambient temperature for one hour before testing. 2. Turn the multimeter on by rotating the function switch to any position other than OFF.

  • Page 81: Verification Procedure

    DMM800 Series Performance Verification Verification Procedure Implement the following checks to verify the performance of your DMM800 Series multimeter. WARNING. To avoid electric shock, avoid touching exposed connections. AC Volts Check Perform the following steps to verify the AC voltage measurement accuracy. 1.
  • Page 82 DMM800 Series Performance Verification 4. Set the calibrator output to OFF. 5. Disconnect the calibrator from the multimeter. AC+DC Volts Check Perform the following steps to verify the AC+DC voltage measurement accuracy. 1. Set the multimeter dial to AC+DC. 2. Connect the calibrator outputs to the multimeter C V and COM input connectors.
  • Page 83 DMM800 Series Performance Verification 6. Disconnect the calibrator from the multimeter. Check Perform the following steps to verify the resistance measurement accuracy in mode. 1. Set the multimeter dial to . 2. Connect the calibrator outputs to the multimeter C V and COM input connectors.
  • Page 84 DMM800 Series Performance Verification 6. Insert the multimeter test leads into the C V and COM input connectors of the multimeter. 7. Short the test leads together and check for proper operation. Diode Check Perform the following steps to verify the diode check accuracy. 1.
  • Page 85 DMM800 Series Performance Verification Set the calibrator output to OFF. Connect the multimeter test leads to the calibrator outputs. Connect the calibrator common lead to the multimeter COM input. Press the multimeter gold key followed by the /% key. Connect the remaining calibrator output lead to the multimeter input.
  • Page 86 DMM800 Series Performance Verification 4. Set the calibrator to each of the values in the Volts Peak Hold Test record and verify that the multimeter reads within the specified Display Minimum and Maximum limits. 5. Set the calibrator output to OFF. 6.
  • Page 87 DMM800 Series Performance Verification 4. Set the calibrator output to OFF. 5. Disconnect the calibrator from the multimeter. AC Ampere Check Perform the following steps to verify the AC ampere measurement accuracy. 1. Set the multimeter dial to A . 2.

  • Page 88: Dmm830 Test Records

    DMM800 Series Performance Verification DMM830 Test Records Serial Number Procedure performed by Date DMM830 Test Record Test Input Tolerance Display Minimum Reading Display Maximum AC Volts Test 3.6000 V 60 Hz 1.0% + 40 counts 3.5600 V 3.6400 V 1 kHz 2.5% + 40 counts 3.5060 V 3.6940 V...
  • Page 89 DMM800 Series Performance Verification DMM830 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum AC+DC Volts Test –1.000 V 2.2% +14 counts 0.964 V 1.036 V 1.000 V 2.2% +14 counts 0.964 V 1.036 V 1.000 V 60 Hz 2.2% +14 counts 0.964 V 1.036 V...
  • Page 90 DMM800 Series Performance Verification DMM830 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Low Voltage Test 3.600 k 1% + 1 count 3.563 k 3.637 k 36.00 k 1% + 1 count 35.63 k 36.37 k 360.0 k 1% + 1 count 356.3 k 363.7 k...
  • Page 91 DMM800 Series Performance Verification DMM830 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum DC Milliampere Test 0.0 A 10 counts –1.0 A 1.0 A 360.0 A 0.5% + 10 counts 357.2 A 362.8 A –360.0 A 0.5% + 10 counts –362.8 A –357.2 A 3600.0 A...

  • Page 92: Dmm850 Test Records

    DMM800 Series Performance Verification DMM850 Test Records Serial Number Procedure performed by Date DMM850 Test Record Test Input Tolerance Display Minimum Reading Display Maximum AC Volts Test 3.6000 V 60 Hz 0.8% + 40 counts 3.5672 V 3.6328 V 500 Hz 2.0% + 40 counts 3.5240 V 3.6760 V...
  • Page 93 DMM800 Series Performance Verification DMM850 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum DC Millivolts Test 0.00 mV 0.1% + 10 counts –0.10 mV 0.10 mV 40.00 mV 0.1% + 10 counts 39.86 mV 40.14 mV 360.00 mV 0.1% + 10 counts 359.54 mV 360.46 mV...
  • Page 94 DMM800 Series Performance Verification DMM850 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Test 0.0000 0.4% + 10 counts –0.1000 0.1000 360.00 0.8% + 10 counts 357.02 362.98 3.6000 k 0.4% + 10 counts 3.5846 k 3.6154 k 36.000 k 0.4% + 10 counts 35.846 k...
  • Page 95 DMM800 Series Performance Verification DMM850 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Capacitance Test 3.600 nF 1% + 10 counts 3.554 nF 3.646 nF 36.00 nF 1% + 10 counts 35.54 nF 36.46 nF 360.0 nF 1% + 10 counts 355.4 nF 364.6 nF...
  • Page 96 DMM800 Series Performance Verification DMM850 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum AC Milliampere Test (60 Hz) 3600.0 A 0.9% + 80 counts 3559.6 A 3640.4 A 360.00 mA 0.9% + 80 counts 355.96 mA 364.04 mA The upper display readout is 60 Hz 2 counts corresponding to the input frequency.

  • Page 97: Dmm870 Test Records

    DMM800 Series Performance Verification DMM870 Test Records Serial Number Procedure performed by Date DMM870 Test Record Test Input Tolerance Display Minimum Reading Display Maximum AC Volts Test 3.6000 V 60 Hz 0.7% + 40 counts 3.5708 V 3.6292 V 500 Hz 1.5% + 40 counts 3.5420 V 3.6580 V...
  • Page 98 DMM800 Series Performance Verification DMM870 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum DC Millivolts Test 0.00 mV 0.06% + 10 counts –0.10 mV 0.10 mV 40.00 mV 0.06% + 10 counts 39.88 mV 40.12 mV 360.00 mV 0.06% + 10 counts 359.69 mV 360.31 mV...
  • Page 99 DMM800 Series Performance Verification DMM870 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Test 0.0000 0.3% + 10 counts –0.1000 0.1000 360.00 0.6% + 10 counts 357.74 362.26 3.6000 k 0.3% + 10 counts 3.5882 k 3.6118 k 36.000 k 0.3% + 10 counts 35.882 k...
  • Page 100 DMM800 Series Performance Verification DMM870 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Capacitance Test 3.600 nF 1% + 10 counts 3.554 nF 3.646 nF 36.00 nF 1% + 10 counts 35.54 nF 36.46 nF 360.0 nF 1% + 10 counts 355.4 nF 364.6 nF...
  • Page 101 DMM800 Series Performance Verification DMM870 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum AC Milliampere Test (60 Hz) 3600.0 A 0.9% + 80 counts 3559.6 A 3640.4 A 360.00 mA 0.9% + 80 counts 355.96 mA 364.04 mA The upper display readout is 60 Hz 2 counts corresponding to the input frequency.

  • Page 102: Adjustment Procedures

    DMM800 Series Adjustment Procedures Adjustment Procedures This section contains procedures to adjust DMM830, DMM850, and DMM870 multimeters. Perform these procedures once a year or if the Performance Verification procedure indicates the need for calibration. In this section you will find the following information: A list of adjustments A list of test equipment needed to make the adjustments Instructions on how to prepare the instrument for adjustment...

  • Page 103: Test Equipment

    DMM800 Series Adjustment Procedures Test Equipment The test equipment listed in Table 8 on page 9 is a complete list of equipment needed for the adjustment procedures. These procedures assume that the test equipment is operating within tolerance. Preparation for Adjustment The following guidelines apply to all DMM800 Series adjustments: Perform all adjustments in a 21 to 25 C ambient environment with a relative humidity of 75% or less.
  • Page 104 DMM800 Series Adjustment Procedures Case bottom Remove screws (3) Case top Twist Figure 2: Opening the Meter Case Handheld and Benchtop Instruments Basic Service...

  • Page 105: Adjustments Part 1

    DMM800 Series Adjustment Procedures Adjustments Part 1 The procedures within this section use the adjustments accessible with the back case removed from the multimeter. VR 4 (DMM850 and DMM870) VR 5 VR 6 VR 1 VR 2 VR 3 Case top Figure 3: Adjustment locations 1 DC Volts Perform the following steps to adjust the DC voltage calibration.
  • Page 106 DMM800 Series Adjustment Procedures AC Volts Perform the following steps to adjust the AC voltage calibration at 60 Hz. 1. Set the multimeter dial to V . 2. Set the calibrator to output 2.0000 VAC at 60 Hz. 3. Connect the outputs of the calibrator to the C V and COM input connectors of the multimeter.
  • Page 107 DMM800 Series Adjustment Procedures 4. Adjust VR2 until the display shows 299.9 to 300.1 nF. 5. Set the calibrator to output 1.000 F. 6. Adjust VR3 until the display shows 0.999 to 1.001 F. 7. Set the calibrator to output 100.0 F. 8.

  • Page 108: Adjustments Part 2

    DMM800 Series Adjustment Procedures 7. Disconnect the calibrator from the multimeter. DC Amperes Perform the following steps to adjust the DC amperes calibration. 1. Set the multimeter dial to A . 2. Connect the calibrator outputs to the multimeter A and COM inputs. 3.

  • Page 109: Reassembling The Multimeter

    DMM800 Series Adjustment Procedures 2. Lift the circuit board assembly out of the top case half. 3. Set calibrator to output 100 VAC at 10 kHz (sinewave). 4. Connect the outputs of the calibrator to the C V and COM input connectors of the multimeter.
  • Page 110 DMM800 Series Adjustment Procedures Handheld and Benchtop Instruments Basic Service...
  • Page 111 Instructions Manual DMM912, 914, and 916 Digital Multimeters 070-9851-00...
  • Page 112 Table of Contents DMM912, 914, and 916 Digital Multimeters ....Specifications ..........Performance Verification .
  • Page 113 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 114: Dmm912, 914, And 916 Digital Multimeters

    DMM912, 914, and 916 Digital Multimeters The Tektronix DMM912, DMM914, and DMM916 digital multimeters provide many features. Table 1 lists the features of each meter for easy comparison. Figure 1: DMM916 Digital Multimeter Table 1: DMM91X Series Digital Multimeter Features...
  • Page 115 DMM91X Series Digital Multimeters Table 1: DMM91X Series Digital Multimeter Features (Cont.) Feature DMM912 DMM914 DMM916 Resistance Frequency Diodes and capacitors Continuity Duty factor Temperature Decibel AC volts and amps with Hz display Measurement hold Peak hold Minimum, maximum, and average values M/M/A time stamp Delta mode HI/LO limits...

  • Page 116: Specifications

    DMM91X Series Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in an 18 to 28 C ambient environment at less than 75% relative humidity. The batteries are adequately charged (the battery indicator does not display). NOTE.
  • Page 117 DMM91X Series Specifications Table 3: Measurement Characteristics Characteristic Description DC voltage V ranges 4 V, 40 V, 400 V, 1000 V mV range 400 mV Accuracy (% + 10 counts) DMM912 DMM914 DMM916 0.2% 0.1% 0.06% AC voltage Ranges 4 V, 40 V, 400 V, 750 V Accuracy (% + 40 counts) DMM912...
  • Page 118 DMM91X Series Specifications Table 3: Measurement Characteristics (Cont.) Characteristic Description Compliance voltages (typical) 1 V ( setting) 0.4 V (LV setting) Continuity threshold Beeper sounds when resistance is approximately 75 or less Diode test Test current (typical) 0.6 mA Test voltage (typical) Capacitance Ranges 4 nF, 40 nF, 400 nF, 4 F, 40 F, 400 F, 4 mF, 40 mF...
  • Page 119 DMM91X Series Specifications Table 4: Physical Characteristics Characteristic Description Dimensions Without holster 32 mm 86 mm 185 mm (H W D) Weight With battery 370 g (13 oz.) With battery and holster 600 g (21.2 oz.) Table 5: Environmental Characteristic Characteristic Description Temperature...
  • Page 120 DMM91X Series Specifications Table 6: Certifications and Compliances (Cont.) Characteristic Description Overvoltage category CAT III: Distribution level mains, fixed installation CAT II: Local level mains, appliances, portable equipment CAT I: Signal level, special equipment or parts of equipment, telecommunication, electronics Pollution Degree 2 Do not operate in environments where conductive pollutants may be present.

  • Page 121: Performance Verification

    DMM91X Series Performance Verification Performance Verification This section contains procedures to verify that the DMM912, DMM914, and DMM916 Digital Multimeters perform as warranted. If an instrument fails any of these checks, it needs adjustment and or repair. The performance verification procedures provide a valid confirmation of instrument electrical characteristics and function under the following conditions: The multimeter operates in an 18 to 28 C (64 to 82 F) ambient environment with a relative humidity of less than 75%.

  • Page 122: Test Equipment

    AC and DC volts measurement AC and DC current measurement Resistance measurement Capacitance measurement Sinewave generation Squarewave generation Thermocouple adapter K Type Tektronix ATK01 Capacitance Standard Optional Choose 4-wire measurement setup if available. Handheld and Benchtop Instruments Basic Service...

  • Page 123: Set Up

    DMM91X Series Performance Verification Set Up To prepare for the performance verification checks, do the following steps. 1. Allow the multimeter to stabilize at the ambient temperature for one hour before testing. 2. Turn the multimeter on by rotating the function switch to any position other than OFF.

  • Page 124: Verification Procedure

    DMM91X Series Performance Verification Verification Procedure Implement the following checks to verify the performance of your DMM91X Series multimeter. WARNING. To avoid electric shock, avoid touching exposed connections. AC Volts Check Perform the following steps to verify the AC voltage measurement accuracy. 1.
  • Page 125 DMM91X Series Performance Verification 4. Set the calibrator output to OFF. 5. Disconnect the calibrator from the multimeter. AC+DC Volts Check Perform the following steps to verify the AC+DC voltage measurement accuracy. 1. Set the multimeter dial to AC+DC. 2. Connect the calibrator outputs to the multimeter C V and COM input connectors.
  • Page 126 DMM91X Series Performance Verification 6. Disconnect the calibrator from the multimeter. Check Perform the following steps to verify the resistance measurement accuracy in mode. 1. Set the multimeter dial to . 2. Connect the calibrator outputs to the multimeter C V and COM input connectors.
  • Page 127 DMM91X Series Performance Verification 6. Insert the multimeter test leads into the C V and COM input connectors of the multimeter. 7. Short the test leads together and check for proper operation. Diode Check Perform the following steps to verify the diode check accuracy. 1.
  • Page 128 DMM91X Series Performance Verification Set the calibrator output to OFF. Connect the multimeter test leads to the calibrator outputs. Connect the calibrator common lead to the multimeter COM input. Press the multimeter gold key followed by the /% key. Connect the remaining calibrator output lead to the multimeter input.
  • Page 129 DMM91X Series Performance Verification 4. Set the calibrator to each of the values in the Volts Peak Hold Test record and verify that the multimeter reads within the specified Display Minimum and Maximum limits. 5. Set the calibrator output to OFF. 6.
  • Page 130 DMM91X Series Performance Verification 4. Set the calibrator output to OFF. 5. Disconnect the calibrator from the multimeter. AC Ampere Check Perform the following steps to verify the AC ampere measurement accuracy. 1. Set the multimeter dial to A . 2.

  • Page 131: Dmm912 Test Records

    DMM91X Series Performance Verification DMM912 Test Records Serial Number Procedure performed by Date DMM912 Test Record Test Input Tolerance Display Minimum Reading Display Maximum AC Volts Test 3.6000 V 60 Hz 1.0% + 40 counts 3.5600 V 3.6400 V 1 kHz 2.5% + 40 counts 3.5060 V 3.6940 V...
  • Page 132 DMM91X Series Performance Verification DMM912 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum AC+DC Volts Test –1.000 V 2.2% +14 counts 0.964 V 1.036 V 1.000 V 2.2% +14 counts 0.964 V 1.036 V 1.000 V 60 Hz 2.2% +14 counts 0.964 V 1.036 V...
  • Page 133 DMM91X Series Performance Verification DMM912 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Low Voltage Test 3.600 k 1% + 1 count 3.563 k 3.637 k 36.00 k 1% + 1 count 35.63 k 36.37 k 360.0 k 1% + 1 count 356.3 k 363.7 k...
  • Page 134 DMM91X Series Performance Verification DMM912 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum DC Milliampere Test 0.0 A 10 counts –1.0 A 1.0 A 360.0 A 0.5% + 10 counts 357.2 A 362.8 A –360.0 A 0.5% + 10 counts –362.8 A –357.2 A 3600.0 A...

  • Page 135: Dmm914 Test Records

    DMM91X Series Performance Verification DMM914 Test Records Serial Number Procedure performed by Date DMM914 Test Record Test Input Tolerance Display Minimum Reading Display Maximum AC Volts Test 3.6000 V 60 Hz 0.8% + 40 counts 3.5672 V 3.6328 V 500 Hz 2.0% + 40 counts 3.5240 V 3.6760 V...
  • Page 136 DMM91X Series Performance Verification DMM914 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum DC Millivolts Test 0.00 mV 0.1% + 10 counts –0.10 mV 0.10 mV 40.00 mV 0.1% + 10 counts 39.86 mV 40.14 mV 360.00 mV 0.1% + 10 counts 359.54 mV 360.46 mV...
  • Page 137 DMM91X Series Performance Verification DMM914 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Test 0.0000 0.4% + 10 counts –0.1000 0.1000 360.00 0.8% + 10 counts 357.02 362.98 3.6000 k 0.4% + 10 counts 3.5846 k 3.6154 k 36.000 k 0.4% + 10 counts 35.846 k...
  • Page 138 DMM91X Series Performance Verification DMM914 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Capacitance Test 3.600 nF 1% + 10 counts 3.554 nF 3.646 nF 36.00 nF 1% + 10 counts 35.54 nF 36.46 nF 360.0 nF 1% + 10 counts 355.4 nF 364.6 nF...
  • Page 139 DMM91X Series Performance Verification DMM914 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum AC Milliampere Test (60 Hz) 3600.0 A 0.9% + 80 counts 3559.6 A 3640.4 A 360.00 mA 0.9% + 80 counts 355.96 mA 364.04 mA The upper display readout is 60 Hz 2 counts corresponding to the input frequency.

  • Page 140: Dmm916 Test Records

    DMM91X Series Performance Verification DMM916 Test Records Serial Number Procedure performed by Date DMM916 Test Record Test Input Tolerance Display Minimum Reading Display Maximum AC Volts Test 3.6000 V 60 Hz 0.7% + 40 counts 3.5708 V 3.6292 V 500 Hz 1.5% + 40 counts 3.5420 V 3.6580 V...
  • Page 141 DMM91X Series Performance Verification DMM916 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum DC Millivolts Test 0.00 mV 0.06% + 10 counts –0.10 mV 0.10 mV 40.00 mV 0.06% + 10 counts 39.88 mV 40.12 mV 360.00 mV 0.06% + 10 counts 359.69 mV 360.31 mV...
  • Page 142 DMM91X Series Performance Verification DMM916 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Test 0.0000 0.3% + 10 counts –0.1000 0.1000 360.00 0.6% + 10 counts 357.74 362.26 3.6000 k 0.3% + 10 counts 3.5882 k 3.6118 k 36.000 k 0.3% + 10 counts 35.882 k...
  • Page 143 DMM91X Series Performance Verification DMM916 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum Capacitance Test 3.600 nF 1% + 10 counts 3.554 nF 3.646 nF 36.00 nF 1% + 10 counts 35.54 nF 36.46 nF 360.0 nF 1% + 10 counts 355.4 nF 364.6 nF...
  • Page 144 DMM91X Series Performance Verification DMM916 Test Record (Cont.) Test Input Tolerance Display Minimum Reading Display Maximum AC Milliampere Test (60 Hz) 3600.0 A 0.9% + 80 counts 3559.6 A 3640.4 A 360.00 mA 0.9% + 80 counts 355.96 mA 364.04 mA The upper display readout is 60 Hz 2 counts corresponding to the input frequency.

  • Page 145: Adjustment Procedures

    DMM91X Series Adjustment Procedures Adjustment Procedures This section contains procedures to adjust DMM912, DMM914, and DMM916 multimeters. Perform these procedures once a year or if the Performance Verification procedure indicates the need for calibration. In this section you will find the following information: A list of adjustments A list of test equipment needed to make the adjustments Instructions on how to prepare the instrument for adjustment...

  • Page 146: Test Equipment

    DMM91X Series Adjustment Procedures Test Equipment The test equipment listed in Table 8 on page 9 is a complete list of equipment needed for the adjustment procedures. These procedures assume that the test equipment is operating within tolerance. Preparation for Adjustment The following guidelines apply to all DMM91X Series adjustments: Perform all adjustments in a 21 to 25 C ambient environment with a relative humidity of 75% or less.
  • Page 147 DMM91X Series Adjustment Procedures Case bottom Remove screws (3) Case top Twist Figure 2: Opening the Meter Case Handheld and Benchtop Instruments Basic Service...

  • Page 148: Adjustments Part 1

    DMM91X Series Adjustment Procedures Adjustments Part 1 The procedures within this section use the adjustments accessible with the back case removed from the multimeter. VR 4 (DMM914 and DMM916) VR 5 VR 6 VR 1 VR 2 VR 3 Case top Figure 3: Adjustment locations 1 DC Volts Perform the following steps to adjust the DC voltage calibration.
  • Page 149 DMM91X Series Adjustment Procedures AC Volts Perform the following steps to adjust the AC voltage calibration at 60 Hz. 1. Set the multimeter dial to V . 2. Set the calibrator to output 2.0000 VAC at 60 Hz. 3. Connect the outputs of the calibrator to the C V and COM input connectors of the multimeter.
  • Page 150 DMM91X Series Adjustment Procedures 4. Adjust VR2 until the display shows 299.9 to 300.1 nF. 5. Set the calibrator to output 1.000 F. 6. Adjust VR3 until the display shows 0.999 to 1.001 F. 7. Set the calibrator to output 100.0 F. 8.

  • Page 151: Adjustments Part 2

    DMM91X Series Adjustment Procedures 7. Disconnect the calibrator from the multimeter. DC Amperes Perform the following steps to adjust the DC amperes calibration. 1. Set the multimeter dial to A . 2. Connect the calibrator outputs to the multimeter A and COM inputs. 3.

  • Page 152: Reassembling The Multimeter

    DMM91X Series Adjustment Procedures 2. Lift the circuit board assembly out of the top case half. 3. Set calibrator to output 100 VAC at 10 kHz (sinewave). 4. Connect the outputs of the calibrator to the C V and COM input connectors of the multimeter.
  • Page 153 DMM91X Series Adjustment Procedures Handheld and Benchtop Instruments Basic Service...
  • Page 154 Instructions Manual DTM500 Series Digital Thermometers 070-9852-00...
  • Page 155 Table of Contents DTM500 Series Digital Thermometers ......Specifications ..........
  • Page 156 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 157: Dtm500 Series Digital Thermometers

    DTM500 Series Digital Thermometers The Tektronix DTM510 and DTM520 are hand-held digital thermometers that can measure temperature using a variety of thermocouple probes. A K-type surface measurement bead probe comes standard with both instruments. The DTM510 thermometer uses a single K-type probe; the DTM520 uses K- or J-type probes.

  • Page 158: Specifications

    DTM500 Series Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in an 18 to 28 C ambient environment unless otherwise noted. The instrument warms up for 60 minutes. NOTE. All specifications are warranted unless marked “typical.” Typical characteristics are not guaranteed but are provided for the convenience of the user.
  • Page 159 DTM500 Series Specifications Table 1: General Characteristics (Cont.) Characteristic Description Temperature Range Resolution % of Reading Accuracy DTM520 (K-type probe) –200 to –100 C 0.1 C (0.3% + 1 C) –328 to –148 F 0.2 F (0.3% + 2 F) –99.9 to 999.9 C...
  • Page 160 DTM500 Series Specifications Table 3: Environmental Characteristics Characteristic Description Temperature coefficient <18 C or >28 C DTM510 0.15 (specified accuracy) per C DTM520 0.1 (specified accuracy) per C Operating temperature 0 to 50 C (32 to 122 F) at 0% to 75% RH Storage temperature –20 to 60 C (–4 to 140 F) at 0% to 80% RH...

  • Page 161: Performance Verification

    DTM500 Series Performance Verification Performance Verification This section contains procedures to verify that the DTM510 and DTM520 thermometers perform as warranted. If an instrument fails any of the checks, it needs adjustment and or repair. Verify the performance of your thermometer annually or whenever its accuracy or function is in question.

  • Page 162: Set Up

    DTM500 Series Performance Verification Set Up To prepare for the performance verification checks, do the following. 1. Warm up the thermometer for 60 minutes. 2. Photocopy the test records on pages 7 through 9. Use them to record your test results.

  • Page 163: Dtm510 Test Record

    DTM500 Series Performance Verification DTM510 Test Record Serial Number Procedure Performed By Date Resolution Temperature Low Limit Test Result High Limit –48.0 C –49.1 –46.9 –30.0 C –31.1 –28.9 0.0 C –01.0 01.0 30.0 C 28.9 31.1 50.0 C 48.9 51.1...

  • Page 164: Dtm520 Test Record

    DTM500 Series Performance Verification DTM520 Test Record Serial Number Procedure Performed By Date Probe Type Temperature Low Limit Test Result High Limit –198.0 C –199.6 –196.4 –99.0 C –99.8 –98.2 0.0 C –0.7 50.0 C 49.2 50.8 500.0 C 498.8 501.2...
  • Page 165 DTM500 Series Performance Verification DTM520 Test Record (Cont.) Probe type Temperature Low limit Test result High limit –198.0 C –199.7 –196.3 –99.0 C –99.9 –98.1 0.0 C –0.8 50.0 C 49.1 50.9 100.0 C 99.1 100.9 500.0 C 498.7 501.3 755.0 C...

  • Page 166: Adjustment Procedures

    DTM500 Series Adjustment Procedures Adjustment Procedures This section contains procedures to adjust DTM510 and DTM520 thermometers. If your thermometer fails a performance requirement, use these procedures to return it to factory specifications. In this section you will find the following information:...

  • Page 167: Preparation For Adjustment

    DTM500 Series Adjustment Procedures NOTE. Before making any adjustment, warm up the test equipment according to the manufacturer’s recommendations. Table 6: Adjustment Test Equipment Description Minimum requirements Examples Thermocouple Simulator –200 to1370 C 0.01% Wavetek 9100 Universal (–328 to 2498 F 0.01%)
  • Page 168 DTM500 Series Adjustment Procedures Open the Thermometer To make internal adjustments, you must open the thermometer case and remove the circuit board (see Figure 2 or Figure 3). 1. Unplug the thermocouple(s). 2. Lay the thermometer face down on a flat work surface.

  • Page 169: Dtm510 Adjustment Procedure

    DTM500 Series Adjustment Procedures DTM510 Adjustment Procedure This section describes how to adjust the DTM510 thermometer. To properly adjust the thermometer, perform the following steps in sequential order. 1. Open the thermometer as described in the previous section. 2. Turn on the thermometer and allow it to warm up for at least 30 minutes.
  • Page 170 DTM500 Series Adjustment Procedures Front Figure 2: DTM510 Thermometer Disassembly and Adjustment Locations Handheld and Benchtop Instruments Basic Service...

  • Page 171: Dtm520 Adjustment Procedure

    DTM500 Series Adjustment Procedures DTM520 Adjustment Procedure This section describes how to adjust the DTM520 thermometer. To properly adjust the thermometer, perform the following steps in sequential order. Figure 3 shows the location of the test and adjustment points. 1. Open the thermometer. (See page 12 for instructions.) 2.
  • Page 172 DTM500 Series Adjustment Procedures 0 C Calibration Use the following procedure to perform a 0 calibration. 1. Connect the thermocouple simulator to the T1 probe connector. 2. Set the thermocouple simulator and thermometer probe types to K. 3. Set the thermocouple simulator to 0 C.
  • Page 173 Instructions Manual DTM900 and DTM920 Digital Thermometers 070-9853-00...
  • Page 174 Table of Contents DTM900 and DTM920 Digital Thermometers ....Specifications ..........Performance Verification .
  • Page 175 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 176: Dtm900 And Dtm920 Digital Thermometers

    DTM900 and DTM920 Digital Thermometers The Tektronix DTM900 and DTM920 are hand-held digital thermometers that can measure temperature using a variety of thermocouple probes. A K-type surface measurement bead probe comes standard with both instruments. The DTM900 thermometer uses a single K-type probe; the DTM920 uses K- or J-type probes.

  • Page 177: Specifications

    DTM900 and DTM920 Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in an 18 to 28 C ambient environment unless otherwise noted. The instrument warms up for 60 minutes. NOTE. All specifications are warranted unless marked “typical.” Typical characteristics are not guaranteed but are provided for the convenience of the user.
  • Page 178 DTM900 and DTM920 Specifications Table 1: General Characteristics (Cont.) Characteristic Description Temperature Range Resolution % of Reading Accuracy DTM920 (K-type probe) –200 to –100 C 0.1 C (0.3% + 1 C) –328 to –148 F 0.2 F (0.3% + 2 F) –99.9 to 999.9 C 0.1 C (0.1% + 0.7 C)
  • Page 179 DTM900 and DTM920 Specifications Table 3: Environmental Characteristics Characteristic Description Temperature coefficient <18 C or >28 C DTM900 0.15 (specified accuracy) per C DTM920 0.1 (specified accuracy) per C Operating temperature 0 to 50 C (32 to 122 F) at 0% to 75% RH Storage temperature –20 to 60 C (–4 to 140 F) at 0% to 80% RH Power requirements...

  • Page 180: Performance Verification

    DTM900 and DTM920 Performance Verification Performance Verification This section contains procedures to verify that the DTM900 and DTM920 thermometers perform as warranted. If an instrument fails any of the checks, it needs adjustment and or repair. Verify the performance of your thermometer annually or whenever its accuracy or function is in question.

  • Page 181: Set Up

    DTM900 and DTM920 Performance Verification Set Up To prepare for the performance verification checks, do the following. 1. Warm up the thermometer for 60 minutes. 2. Photocopy the test records on pages 7 through 9. Use them to record your test results.

  • Page 182: Dtm900 Test Record

    DTM900 and DTM920 Performance Verification DTM900 Test Record Serial Number Procedure Performed By Date Resolution Temperature Low Limit Test Result High Limit –48.0 C –49.1 –46.9 –30.0 C –31.1 –28.9 0.0 C –01.0 01.0 30.0 C 28.9 31.1 50.0 C 48.9 51.1 100.0 C...

  • Page 183: Dtm920 Test Record

    DTM900 and DTM920 Performance Verification DTM920 Test Record Serial Number Procedure Performed By Date Probe Type Temperature Low Limit Test Result High Limit –198.0 C –199.6 –196.4 –99.0 C –99.8 –98.2 0.0 C –0.7 50.0 C 49.2 50.8 500.0 C 498.8 501.2 998.0 C...
  • Page 184 DTM900 and DTM920 Performance Verification DTM920 Test Record (Cont.) Probe type Temperature Low limit Test result High limit –198.0 C –199.7 –196.3 –99.0 C –99.9 –98.1 0.0 C –0.8 50.0 C 49.1 50.9 100.0 C 99.1 100.9 500.0 C 498.7 501.3 755.0 C 753.4...

  • Page 185: Adjustment Procedures

    DTM900 and DTM920 Adjustment Procedures Adjustment Procedures This section contains procedures to adjust DTM900 and DTM920 thermometers. If your thermometer fails a performance requirement, use these procedures to return it to factory specifications. In this section you will find the following information: A list of adjustments A list of test equipment needed to make the adjustments Instructions on how to prepare the instrument for adjustment...

  • Page 186: Preparation For Adjustment

    DTM900 and DTM920 Adjustment Procedures NOTE. Before making any adjustment, warm up the test equipment according to the manufacturer’s recommendations. Table 6: Adjustment Test Equipment Description Minimum requirements Examples Thermocouple Simulator –200 to1370 C 0.01% Wavetek 9100 Universal (–328 to 2498 F 0.01%) Calibration System or Fluke 5500A Calibrator 5500 C...
  • Page 187 DTM900 and DTM920 Adjustment Procedures Open the Thermometer To make internal adjustments, you must open the thermometer case and remove the circuit board (see Figure 2 or Figure 3). 1. Unplug the thermocouple(s). 2. Lay the thermometer face down on a flat work surface. 3.

  • Page 188: Dtm900 Adjustment Procedure

    DTM900 and DTM920 Adjustment Procedures DTM900 Adjustment Procedure This section describes how to adjust the DTM900 thermometer. To properly adjust the thermometer, perform the following steps in sequential order. 1. Open the thermometer as described in the previous section. 2. Turn on the thermometer and allow it to warm up for at least 30 minutes. 3.
  • Page 189 DTM900 and DTM920 Adjustment Procedures Front Figure 2: DTM900 Thermometer Disassembly and Adjustment Locations Handheld and Benchtop Instruments Basic Service...

  • Page 190: Dtm920 Adjustment Procedure

    DTM900 and DTM920 Adjustment Procedures DTM920 Adjustment Procedure This section describes how to adjust the DTM920 thermometer. To properly adjust the thermometer, perform the following steps in sequential order. Figure 3 shows the location of the test and adjustment points. 1.
  • Page 191 DTM900 and DTM920 Adjustment Procedures 0 C Calibration Use the following procedure to perform a 0 calibration. 1. Connect the thermocouple simulator to the T1 probe connector. 2. Set the thermocouple simulator and thermometer probe types to K. 3. Set the thermocouple simulator to 0 C. 4.
  • Page 192 Instructions Manual PS280 and PS283 Power Supplies 070-9894-00...
  • Page 193 Table of Contents PS280 and PS283 Power Supplies ......Specifications ..........Performance Verification .
  • Page 194 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 195: Ps280 And Ps283 Power Supplies

    PS280 and PS283 Power Supplies The Tektronix PS280 and PS283 Laboratory DC Power Supplies are multifunc- tion benchtop or portable instruments. These regulated triple output power supplies provide one fixed 5 V, 3 A output suitable for powering logic circuits and two variable 0 to 30 V outputs useful in a wide variety of test and exper- imental uses.

  • Page 196: Specifications

    PS280 and PS283 Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in a 0 to 40 C (32 to 104 F) ambient environ- ment, unless otherwise noted. The instrument warms up for at least twenty minutes. NOTE.
  • Page 197 PS280 and PS283 Specifications Table 1: Operational Characteristics (Cont.) Characteristic Description Ripple and Noise 2 mV 5 Hz to 1 MHz: 1 mV 3 mA Temperature coefficient (CV) 300 ppm/ C Recovery time (CV) 100 s (time to recover after a 50% load change with 0.5 A minimum) Tracking error (SLAVE) 0.5% + 10 mV of the MASTER supply...
  • Page 198 PS280 and PS283 Specifications Table 4: Physical Characteristics Characteristic Description Width 255 mm (10.04 inch) Height 145 mm (5.71 inch) Depth 335 mm (13.19 inch) Weight PS280: 11.5 kg (25.3 lb) PS283: 9.0 kg (19.8 lb) Handheld and Benchtop Instruments Basic Service...

  • Page 199: Performance Verification

    PS280 and PS283 Performance Verification Performance Verification This section contains procedures to verify that PS280 or PS283 power supplies perform as warranted. Implement the performance verification procedures whenever the accuracy or function of your instrument is in question. The performance verification procedures provide a valid confirmation of instrument electrical characteristics and function under the following conditions: The instrument operates in a 20 to 30 C (68 to 104 F) ambient environment.

  • Page 200: Test Equipment

    Table 6: Performance Verification and Adjustment Test Equipment Description Minimum Requirements Example Product Oscilloscope 50 MHz, 3% vertical deflection accuracy Tektronix TDS300 Series Oscilloscope Digital Multimeter 35 V, 4 A, 0.1% Accuracy Tektronix DMM914 Digital Multimeter Fixed Resistive Loads 30 W...

  • Page 201: Constant Current Load Regulation Check

    PS280 and PS283 Performance Verification Constant Current Load Regulation Check To check the constant current load regulation of your power supply, perform the following tests. Power supply Shorting strap – Figure 2: Constant Current Test Setup MASTER Current The following check verifies the INDEP mode MASTER current regulation Regulation (INDEP mode) performance.
  • Page 202 PS280 and PS283 Performance Verification Table 7: Load Resistor Values for Current Checks PS280 PS283 Mode INDEP 20 , 30 W 2 , 5 W 20 , 30 W 2 , 5 W PARALLEL 10 , 30 W 1 , 30 W 10 , 30 W 1 , 30 W SLAVE Current Regulation...

  • Page 203: Constant Current Ripple And Noise Check

    PS280 and PS283 Performance Verification 6. Set the digital multimeter to measure a DC current of at least 1 A (PS280) or 0.5 A (PS283). 7. Connect the digital multimeter and load resistors to the + and – terminals of the power supply MASTER output as shown in Figure 2.
  • Page 204 PS280 and PS283 Performance Verification 6. Set the power supply to the PARALLEL operating mode by engaging both TRACKING mode switches (both switches in). 7. Verify that the peak-to-peak ripple viewed on the oscilloscope is less than 2.5 mV. 8. Set the power supply to the SERIES operating mode by disengaging the right TRACKING mode switch (switch out).

  • Page 205: Constant Voltage Regulation Check

    PS280 and PS283 Performance Verification Constant Voltage Regulation Check To check the constant voltage regulation of your power supply, perform the following tests. Power supply – Figure 4: Constant Voltage Test Setup MASTER Voltage The following check verifies the MASTER voltage regulation performance. Regulation 1.
  • Page 206 PS280 and PS283 Performance Verification Table 9: Load Resistor Values for Voltage Checks PS280 PS283 Mode INDEP 15 , 70 W 30 , 40 W SERIES 30 , 140 W 60 , 70 W PARALLEL 7.5 , 140 W 15 , 70 W 5V FIXED 1.7 , 20 W 1.7 , 20 W...

  • Page 207: Adjustment Procedures

    PS280 and PS283 Adjustment Procedures Adjustment Procedures This section contains procedures to adjust PS280 and PS283 power supplies. If your instrument fails a performance requirement, use these procedures to return it to factory specifications. In this section you will find the following information: A list of adjustments A list of test equipment needed to make the adjustments Instructions on how to prepare instruments for adjustment...

  • Page 208: Test Equipment

    PS280 and PS283 Adjustment Procedures Test Equipment To ensure accurate adjustments, use the recommended or equivalent test equipment specified in Table 6 on page 6. If you substitute equipment, always choose instruments that meet or exceed the minimum requirements. NOTE. Before making any adjustment, warm up the test equipment according to the manufacturer’s recommendations.
  • Page 209 PS280 and PS283 Adjustment Procedures Figure 5: PS280/PS283 Instrument Cover Removal Handheld and Benchtop Instruments Basic Service...
  • Page 210 PS280 and PS283 Adjustment Procedures Circuit Board Locations Refer to Figure 6 to locate PS280/PS283 internal circuit boards. Front Panel controls circuit board Display Assembly circuit board Master/Slave circuit board 5 V circuit board Figure 6: PS280/PS283 Internal Circuit Board Locations Handheld and Benchtop Instruments Basic Service...

  • Page 211: Independent Mode Adjustments

    PS280 and PS283 Adjustment Procedures Independent Mode Adjustments Refer to Figures 6, 7, and 8 for the circuit board and adjustment locations used in this procedure. MASTER Voltage Output To adjust the MASTER voltage output, perform the following steps. 1. Disengage both TRACKING mode switches (both switches out) so that the power supply is in the INDEPendent operating mode.
  • Page 212 PS280 and PS283 Adjustment Procedures SLAVE Voltage Output To adjust the SLAVE voltage output, perform the following steps. 1. Disengage both TRACKING mode switches (both switches out) so that the power supply is in the INDEPendent operating mode. 2. Set the SLAVE AMPS/VOLTS meter selection switch to VOLTS. 3.

  • Page 213: Series Tracking Mode Adjustments

    PS280 and PS283 Adjustment Procedures 6. Adjust VR103 (Master/Slave circuit board) for a reading of 1.05 A (PS283) or 2.1 A (PS280) on the multimeter. 7. Adjust VR202 (Display Assembly circuit board) until the PS280/PS283 front panel display reads 1.05 A (PS283) or 2.1 A (PS280). 8.

  • Page 214: Parallel Tracking Mode Adjustments

    PS280 and PS283 Adjustment Procedures 10. Connect the digital multimeter to the + and – terminals of the MASTER output and note the reading obtained. 11. Connect the digital multimeter to the + and – terminals of the SLAVE output. 12.

  • Page 215: 5 V Fixed Output Adjustments

    PS280 and PS283 Adjustment Procedures NOTE. Do not readjust the CURRENT control setting through the remainder of this procedure. 6. Engage both TRACKING switches (both switches in) so that the power supply is in the PARALLEL operating mode. 7. Set the SLAVE CURRENT control to maximum (fully clockwise) and set the SLAVE VOLTAGE control to midrange.
  • Page 216 PS280 and PS283 Adjustment Procedures Current Limit To adjust the current limit, perform the following steps. 1. Set the digital multimeter to measure a DC current of 3.25 A. 2. Adjust VR403 (5 V circuit board) fully counterclockwise. 3. Connect a variable load and the multimeter in series to the terminals of the 5 V FIXED 3A output.
  • Page 217 Instructions Manual PS2520 Series Power Supplies 070-9854-00...
  • Page 218 Table of Contents PS2520 Series Power Supplies ....... . Specifications .
  • Page 219 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 220: Ps2520 Series Power Supplies

    PS2520 Series Power Supplies The Tektronix PS2520, PS2520G, PS2521, and PS2521G power supplies are multifunction benchtop or portable instruments. All PS2520 series power supplies include the following standard features: Three high stability low drift outputs (outputs may be configured for...
  • Page 221 PS2520 Series Product Description The descriptions and procedures in the following sections apply to all PS2520 series power supplies (unless specifically noted), with the following exceptions: The PS2520 and PS2520G power supplies have two variable outputs providing 0 to 36 V at 0 to 1.5 A and one variable output providing 0 to 6 V at 0 to 3A.

  • Page 222: Specifications

    PS2520 Series Specifications Specifications The characteristics listed in this section apply under the following conditions: The power supply operates in a 20 to 30 C (68 to 86 F) ambient environment, unless otherwise noted. The instrument warms up for at least 20 minutes. NOTE.
  • Page 223 PS2520 Series Specifications Table 1: Operational Characteristics (Cont.) Characteristic Description Resolution Voltage 10 mV (20 mV if rating voltage > 36 V) Current 1 mA (2 mA if rating current > 3.5 A) Overvoltage Protection 10 mV (20 mV if rating voltage > 36 V) Program Accuracy Voltage 0.05% + 25 mV (50 mV if rating voltage >...
  • Page 224 PS2520 Series Specifications Table 1: Operational Characteristics (Cont.) Characteristic Description Parallel Tracking Program Accuracy Voltage 0.05% + 25 mV (50 mV if rating voltage > 36 V) Current 0.2% + 20 mA Overvoltage Protection 2% + 0.6 V Load Effect Voltage 3 mV rear output ( 6 mV front output) Current...
  • Page 225 PS2520 Series Specifications Table 4: Physical Characteristics Characteristic Description Width 255 mm (10.04 inch) Height 145 mm (5.71 inch) Depth 346 mm (13.62 inch) Weight 10 kg (22 lbs) Handheld and Benchtop Instruments Basic Service...

  • Page 226: Performance Verification

    PS2520 Series Performance Verification Performance Verification This section contains procedures to verify that PS2520, PS2520G, PS2521, or PS2521G power supplies perform as warranted. Implement the performance verification procedures whenever the accuracy or function of your power supply is in question. The performance verification procedures provide a valid confirmation of instrument electrical characteristics and function under the following conditions: The instrument operates in a 20 to 30 C (68 to 86 F) ambient environ-...

  • Page 227: Test Equipment

    Example Product Digital Multimeter (DMM) 500 V, 10 A, accuracy within 0.01% Fluke 8505A Oscilloscope 20 MHz, 3% vertical deflection accuracy Tektronix TDS300 Series Electronic Load 40 V, 8 A CR mode Variac 0 to 250 V, 2 A Resistors...

  • Page 228: Ps2520 And Ps2520G Checks

    PS2520 Series Performance Verification PS2520 and PS2520G Checks To verify the function and performance of the PS2520 and PS2520G power supplies, implement the following checks in sequential order. To verify the function and performance of the PS2521 and PS2521G power supplies, see page 32.
  • Page 229 PS2520 Series Performance Verification 8. Press RECALL LAST again; verify that the readouts now display the data stored in the memory 01 location. 9. Press RECALL NEXT; verify that the readouts display the data stored in the memory 02 location. 10.
  • Page 230 PS2520 Series Performance Verification 20. Press SHIFT STORE to store the above values in the memory 01 location. Verify that the MEMORY, CURRENT (A), and VOLTS readouts display the values listed in step 19 for memory location 01. 21. Reset the power supply as follows: VOLTS SET CURRENT SET DELAY...
  • Page 231 PS2520 Series Performance Verification 5. Press SHIFT PARA/INDEP again to reconfigure the outputs for indepen- dent operation. Verify that the “PARA” and “SERIES” indicators turn off. Set GPIB. Use the following steps to check the GPIB address. 1. Press LOCAL. 2.
  • Page 232 PS2520 Series Performance Verification 13. Press SHIFT OUT 2; verify that the “2” indicator lights up on the display. 14. Repeat steps 2 through 12 above to measure the OUTPUT 2 voltage setting and readout accuracy. Output 3. Use the following steps to check the OUTPUT 3 accuracy. 1.
  • Page 233 PS2520 Series Performance Verification 4. Ensure that the power supply output is disabled. Configure the DMM to measure 100 VDC across the front panel OUTPUT 2 (+) and OUTPUT 1 (–) terminals. 5. Press SHIFT SERIES/INDEP to configure OUTPUT 1 and OUTPUT 2 for series operation.
  • Page 234 PS2520 Series Performance Verification 9. Verify that the power supply VOLTS readout indicates between 35.950 and 36.050 V. 10. Press VOLTS SET. Set the power supply output voltage to 0.1 V. 11. Set the DMM to measure 1 VDC across the power supply OUTPUT 2 terminals.
  • Page 235 PS2520 Series Performance Verification 12. Press SHIFT OUT 2; verify that the “2” indicator lights up on the display. 13. Repeat steps 2 through 11 above to measure the OUTPUT 2 current setting and readout accuracy. Output 3. Use the following steps to check the OUTPUT 3 accuracy. 1.
  • Page 236 PS2520 Series Performance Verification 4. Ensure that the power supply output is disabled. Configure the DMM to measure 10 amperes DC across the power supply front panel OUTPUT 2 terminals. 5. Press SHIFT PARA/INDEP to configure OUTPUT 1 and OUTPUT 2 for parallel operation.
  • Page 237 PS2520 Series Performance Verification 6. Press OUTPUT ON/OFF. Verify that the “OUT” indicator lights up on the display. 7. Press VOLTS to increase the power supply output voltage until the error message “Err - 013” appears on the readouts. Verify that this event occurs between 34.68 and 37.32 V.
  • Page 238 PS2520 Series Performance Verification 7. Press VOLTS to increase the power supply output voltage until the error message “Err - 013” appears on the readouts. Verify that the readouts indicate between 4.3 and 5.7 V prior to error message activation. 8.
  • Page 239 PS2520 Series Performance Verification 7. Record the DMM voltage (V1). 8. Turn off the electronic load and record the DMM voltage again (V2). 9. Verify that the difference between V1 and V2 is 6 mV. 10. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off. 11.
  • Page 240 PS2520 Series Performance Verification 4. Verify that the difference between V1 and V2 is 50 mV. 5. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off. 6. Ensure that the power supply output is disabled. Remove the leads from the front panel OUTPUT 2 and OUTPUT 1 terminals and connect them to the OUTPUT 2 (+) and OUTPUT 1 (–) terminals on the rear of the instrument.
  • Page 241 PS2520 Series Performance Verification 12. Repeat steps 5 through 8 above and verify that the difference between V1 and V2 is 3 mV. 13. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off. 14. Press SHIFT PARA/INDEP to reconfigure the outputs for independent operation.
  • Page 242 PS2520 Series Performance Verification Constant Voltage Complete the following procedures to verify constant voltage source accuracy. Source Accuracy Outputs 1 and 2. Use the following steps to check the OUTPUT 1 and OUTPUT 2 accuracy. 1. Set up the Variac. Connect the power supply AC input to the Variac variable output.
  • Page 243 PS2520 Series Performance Verification 11. Ensure that the power supply output is disabled. Remove the leads from the front panel OUTPUT 1 terminals and connect them to the front panel OUTPUT 2 terminals. Maintain the equipment configuration and polarities shown in Figure 3. 12.
  • Page 244 PS2520 Series Performance Verification 8. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off; then disable the electronic load. 9. Press SHIFT PARA/INDEP to reconfigure the outputs for independent operation. Verify that the “PARA” indicator turns off. Output 3. Use the following steps to check the OUTPUT 3 accuracy. 1.
  • Page 245 PS2520 Series Performance Verification Power supply Oscilloscope – Resistor Figure 4: Constant Voltage Ripple and Noise Test Setup 3. Set up the oscilloscope to measure 100 mV (AC coupled 4. Set up the power supply as follows: VOLTS SET 36 V CURRENT SET 1.55 A OVP SET...
  • Page 246 PS2520 Series Performance Verification 2. Ensure that the power supply output is disabled. Connect the oscilloscope and 2.2 50 W resistor to the front panel OUTPUT 3 terminals. See Figure 4 for details. 3. Set up the power supply as follows: VOLTS SET CURRENT SET 3.1 A...
  • Page 247 PS2520 Series Performance Verification 5. Press OUTPUT ON/OFF. Verify that the “OUT” indicator lights up on the display. 6. Enable the electronic load. Adjust the load until the “C.C.” indicator lights up on the power supply display. 7. Record the DMM current reading (I1). 8.
  • Page 248 PS2520 Series Performance Verification Parallel Operation. Use the following steps to check the parallel mode output accuracy. 1. Keep the power supply set to OUT 2. Press SHIFT PARA/INDEP to configure OUTPUT 1 and OUTPUT 2 for parallel operation. Verify that the “PARA”...
  • Page 249 PS2520 Series Performance Verification 2. Ensure that the power supply output is disabled. Connect the DMM and 100 W resistor to the front panel OUTPUT 1 terminals. See Figure 6 for details. Power supply Digital multimeter – – 10 A Resistor Figure 6: Constant Current Source Test Setup 3.
  • Page 250 PS2520 Series Performance Verification 2. Press SHIFT PARA/INDEP to configure OUTPUT 1 and OUTPUT 2 for parallel operation. Verify that the “PARA” indicator lights up on the display. 3. Set the DMM to measure 5 amperes DC. 4. Set up the power supply as follows: VOLTS SET 36 V CURRENT SET...

  • Page 251: Ps2521 And Ps2521G Checks

    PS2520 Series Performance Verification PS2521 and PS2521G Checks To verify the performance and function of the PS2521 and PS2521G power supplies, implement the following checks in sequential order. To verify the performance and function of the PS2520 and PS2520G power supplies, see page 9.
  • Page 252 PS2520 Series Performance Verification 8. Press RECALL LAST again; verify that the readouts now display the data stored in the memory 01 location. 9. Press RECALL NEXT; verify that the readouts display the data stored in the memory 02 location. 10.
  • Page 253 PS2520 Series Performance Verification 20. Press SHIFT STORE to store the above values in the memory 01 location. Verify that the MEMORY, CURRENT (A), and VOLTS readouts display the values listed in step 19 for memory location 01. 21. Reset the power supply as follows: VOLTS SET CURRENT SET DELAY...
  • Page 254 PS2520 Series Performance Verification 5. Press SHIFT PARA/INDEP again to reconfigure the outputs for indepen- dent operation. Verify that the “PARA” and “SERIES” indicators turn off. Set GPIB. Use the following steps to check the GPIB address. 1. Press LOCAL. 2.
  • Page 255 PS2520 Series Performance Verification 13. Press SHIFT OUT 2; verify that the “2” indicator lights up on the display. 14. Repeat steps 2 through 12 above to measure the OUTPUT 2 voltage setting and readout accuracy. Output 3. Use the following steps to check the OUTPUT 3 accuracy. 1.
  • Page 256 PS2520 Series Performance Verification 4. Ensure that the power supply output is disabled. Configure the DMM to measure 50 VDC across the front panel OUTPUT 2 (+) and OUTPUT 1 (–) terminals. 5. Press SHIFT SERIES/INDEP to configure OUTPUT 1 and OUTPUT 2 for series operation.
  • Page 257 PS2520 Series Performance Verification 9. Verify that the power supply VOLTS readout indicates between 19.965 and 20.035 V. 10. Press VOLTS SET. Set the power supply output voltage to 0.1 V. 11. Set the DMM to measure 1 VDC across the power supply OUTPUT 2 terminals.
  • Page 258 PS2520 Series Performance Verification 12. Press SHIFT OUT 2; verify that the “2” indicator lights up on the display. 13. Repeat steps 2 through 11 above to measure the OUTPUT 2 current setting and readout accuracy. Output 3. Use the following steps to check the OUTPUT 3 accuracy. 1.
  • Page 259 PS2520 Series Performance Verification 4. Ensure that the power supply output is disabled. Configure the DMM to measure 10 amperes DC across the power supply front panel OUTPUT 2 terminals. 5. Press SHIFT PARA/INDEP to configure OUTPUT 1 and OUTPUT 2 for parallel operation.
  • Page 260 PS2520 Series Performance Verification 6. Press OUTPUT ON/OFF. Verify that the “OUT” indicator lights up on the display. 7. Press VOLTS to increase the power supply output voltage until the error message “Err - 013” appears on the readouts. Verify that this event occurs between 19.00 and 21.00 V.
  • Page 261 PS2520 Series Performance Verification 7. Press VOLTS to increase the power supply output voltage until the error message “Err - 013” appears on the readouts. Verify that this event occurs between 4.3 and 5.7 V. 8. Press SHIFT OVP RESET. 9.
  • Page 262 PS2520 Series Performance Verification 7. Record the DMM voltage (V1). 8. Turn off the electronic load and record the DMM voltage again (V2). 9. Verify that the difference between V1 and V2 is 6 mV. 10. Press OUTPUT OFF. Verify that the “OUT” indicator turns off. 11.
  • Page 263 PS2520 Series Performance Verification 4. Verify that the difference between V1 and V2 is 50 mV. 5. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off. 6. Ensure that the power supply output is disabled. Remove the leads from the front panel OUTPUT 2 and OUTPUT 1 terminals and connect them to the rear panel OUTPUT 2 (+) and OUTPUT 1 (–) terminals.
  • Page 264 PS2520 Series Performance Verification 12. Repeat steps 5 through 8 above and verify that the difference between V1 and V2 is 3 mV. 13. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off. 14. Press SHIFT PARA/INDEP to reconfigure the outputs for independent operation.
  • Page 265 PS2520 Series Performance Verification Constant Voltage Complete the following procedures to verify constant voltage source accuracy. Source Accuracy Outputs 1 and 2. Use the following steps to check the OUTPUT 1 and OUTPUT 2 accuracy. 1. Set up the Variac. Connect the power supply AC input to the Variac variable output.
  • Page 266 PS2520 Series Performance Verification 11. Ensure that the power supply output is disabled. Remove the leads from the front panel OUTPUT 1 terminals and connect them to the front panel OUTPUT 2 terminals. Maintain the equipment configuration and polarities shown in Figure 3. 12.
  • Page 267 PS2520 Series Performance Verification 8. Press OUTPUT ON/OFF. Verify that the “OUT” indicator turns off; then disable the electronic load. 9. Press SHIFT PARA/INDEP to reconfigure the outputs for independent operation. Verify that the “PARA” indicator turns off. Output 3. Use the following steps to check the OUTPUT 3 accuracy. 1.
  • Page 268 PS2520 Series Performance Verification Power supply Oscilloscope – Resistor Figure 9: Constant Voltage Ripple and Noise Test Setup 3. Set up the oscilloscope to measure 100 mV (AC coupled). 4. Set up the power supply as follows: VOLTS SET 36 V CURRENT SET 2.55 A OVP SET...
  • Page 269 PS2520 Series Performance Verification 2. Ensure that the power supply output is disabled. Connect the oscilloscope and 2.2 50 W resistor to the front panel OUTPUT 3 terminals. See Figure 4 for details. 3. Set up the power supply as follows: VOLTS SET CURRENT SET 5.1 A...
  • Page 270 PS2520 Series Performance Verification 5. Press OUTPUT ON/OFF. Verify that the “OUT” indicator lights up on the display. 6. Enable the electronic load. Adjust the load until the “C.C.” indicator lights up on the power supply display. 7. Record the DMM current reading (I1). 8.
  • Page 271 PS2520 Series Performance Verification Parallel Operation. Use the following steps to check the parallel mode output accuracy. 1. With the power supply set to OUT 2, press SHIFT PARA/INDEP to configure OUTPUT 1 and OUTPUT 2 for parallel operation. Verify that the “PARA”...
  • Page 272 PS2520 Series Performance Verification 2. Ensure that the power supply output is disabled. Connect the DMM and 75 W resistor to the front panel OUTPUT 1 terminals. See Figure 6 for details. Power supply Digital multimeter – – 10 A Resistor Figure 11: Constant Current Source Test Setup 3.
  • Page 273 PS2520 Series Performance Verification 2. Press SHIFT PARA/INDEP to configure OUTPUT 1 and OUTPUT 2 for parallel operation. Verify that the “PARA” indicators light up on the display. 3. Set the DMM to measure 5 amperes DC. 4. Set up the power supply as follows: VOLTS SET 20 V CURRENT SET...
  • Page 274 PS2520 Series Adjustment Procedures Adjustment Procedures This section contains procedures to adjust PS2520 Series power supplies. If your instrument fails a performance requirement, use these procedures to return it to factory specifications. In this section you will find the following information: A list of the adjustments A list of test equipment needed to make the adjustments Instructions on how to prepare instruments for adjustment...
  • Page 275 Table 9: Adjustment Test Equipment Description Minimum Requirements Example Product Digital Multimeter 4 -digit Tektronix DM2510 or DM25210G DC volts accuracy: 0.05% DC ampere accuracy: 0.8% Preparation for Adjustment Perform the adjustment procedures on an as-needed basis. If a power supply section fails a performance requirement, or if a section is replaced or repaired, adjust only that section.
  • Page 276 PS2520 Series Adjustment Procedures Perform the adjustments in a 22 to 24 C (71 to 75 F) ambient environ- ment with a relative humidity of 75% or less. Do not alter any setting unless a performance characteristic cannot be met at the current setting.
  • Page 277 PS2520 Series Adjustment Procedures Adjustment Procedure To calibrate PS2520 series power supplies, you must create voltage and current constants and store them in nonvolatile RAM. Each set of constants consist of an offset and full-scale value. You can perform either partial or full calibrations. To perform a full calibration, the power supply follows a preset procedure that allows you to set the voltage, current, and overvoltage protection values.
  • Page 278 PS2520 Series Adjustment Procedures 3. Enter the calibration password on the keypad: PS2520 & PS2520G: enter 2520 ( ) PS2521 & PS2521G: enter 2521 ( ) 4. Verify that the power supply readout displays cL00, indicating calibration mode. 5. Configure the DMM to measure DC volts autorange. 6.
  • Page 279 PS2520 Series Adjustment Procedures VR501 VR601 Instrument front Figure 13: VR501, VR601 Adjustment Location 13. Enter the DMM reading on the keypad (in amperes); then press ( ). Verify that the power supply readout displays cL2F, indicating that the current offset calibration is complete.
  • Page 280 PS2520 Series Adjustment Procedures Parallel Output: Current Offset. Use the following steps to calibrate the parallel output offset current. 1. Press (SHIFT) OUT 2; verify that the “2” indicator lights up on the display. 2. Press (SHIFT) CURRENT 3. Enter the calibration password on the keypad: PS2520 &...
  • Page 281 PS2520 Series Adjustment Procedures 9. Enter the DMM reading on the power supply keypad and press ( ). The power supply readout will return to normal in approximately 5 seconds. The calibration is complete. Output 3. Use the following steps to calibrate OUTPUT 3. 1.
  • Page 282 PS2520 Series Adjustment Procedures 11. Enter the DMM reading on the power supply keypad and press ( ). 12. Verify that the power supply readout displays cL20, indicating current offset calibration. 13. Configure the DMM to measure 2 amperes DC. 14.
  • Page 283 PS2520 Series Adjustment Procedures Table 12: Set DMM Function and Range Calibration Type DMM Function DMM Range All voltage calibrations DC Volts Autorange Current offset DC Amperes Current full scale DC Amperes 10 A 6. Connect the DMM to the power supply as outlined in table 13. Table 13: DMM to Power Supply Connections Calibration Type Display Code...
  • Page 284 PS2520 Series Adjustment Procedures cL10 Voltage Offset Calibration. To calibrate the voltage offset, enter the DMM reading on the power supply keypad and press ( ). The readout will return to normal when the calibration is complete. cL11 Voltage Full Scale Calibration. To calibrate the full-scale voltage, adjust VR601, VR501, or VR401 using the instructions in Table 14.
  • Page 285 PS2520 Series Adjustment Procedures cL41 Parallel Output: Current Full Scale Calibration. To calibrate the parallel output full-scale current, perform the following steps. 1. Verify that the “PARA” indicator lights up on the display. 2. Enter the DMM current reading on the power supply keypad and press ( ). The readout will return to normal when the calibration is complete.
  • Page 286 Instructions Manual TAS 200 Series Oscilloscopes 070-9855-00...
  • Page 287 Table of Contents TAS 200 Series Oscilloscopes ....... . . Specifications .
  • Page 288 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 289: Tas 200 Series Oscilloscopes

    TAS 200 Series Oscilloscopes The Tektronix TAS 220 and TAS 250 oscilloscopes are dual-channel products with frequency bandwidths of DC to 20 MHz and DC to 50 MHz respectively. Both oscilloscopes feature a maximum sensitivity of 1 mV/division and a maximum sweep speed of 10 ns/division.

  • Page 290: Specifications

    TAS 200 Series Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in a 0 to 40 C ambient environment unless otherwise noted. The instrument warms up for at least 20 minutes. The instrument is adjusted at an ambient temperature between 20 and 30 C.
  • Page 291 TAS 200 Series Specifications Table 1: Vertical Deflection Characteristics (Cont.) Characteristic TAS 220 Description TAS 250 Description Chopping Repetition Frequency (Typical) 250 kHz Maximum Input Voltage 400 V (DC + peak AC) Channel Isolation (Typical) 50 kHz: 1000:1 10 MHz: 100:1 20 MHz: 30:1 50 MHz: 30:1 CH 1 Signal Output (Typical)
  • Page 292 TAS 200 Series Specifications Table 4: Trigger Characteristics Characteristic TAS 220 Description TAS 250 Performance Description Sensitivity 0.5 divisions (internal), 0.1 V (external) DC to 5 MHz DC to 10 MHz 1.5 divisions (internal), 0.2 V (external) 5 to 20 MHz 10 to 50 MHz 2.0 divisions (internal), 0.2 V (external) Video...
  • Page 293 TAS 200 Series Specifications Table 8: Environmental Characteristics Characteristic Description Temperature Operating 0 to 40 C Nonoperating –40 to +70 C Tested to MIL-T-28800D, paragraphs 4.5.5.1.3 and 4.5.5.1.4, except in 4.5.5.1.3 steps 4 and 5 (0 C operating test) are performed ahead of step 2 (–40 C nonoperating test).

  • Page 294: Performance Verification

    TAS 200 Series Performance Verification Performance Verification This section contains procedures to verify that the TAS 220 and TAS 250 oscilloscopes perform as warranted. Verify instrument performance whenever the accuracy or function of your instrument is in question. The procedures are organized into four sections: Vertical Check, Horizontal Check, Trigger Check, and Cursor Check.

  • Page 295: Test Equipment

    5500 - C DC Calibration Generator DC voltage levels from 100 mV to 10 V Digital Multimeter 35 V, 4 A, 0.1% Accuracy Tektronix DMM252 Digital Multimeter Termination (two required) female BNC input, male BNC output Tektronix 011-0049-01 Cable, Coaxial...

  • Page 296: Set Up

    TAS 200 Series Performance Verification Set Up Following a 20 minute warm-up period, preset the oscilloscope to the settings listed below. Table 12: Oscilloscope Initial Settings Control Setting INTENSITY Visible Display CURSOR ON/OFF VERTICAL POSITION Midrange MODE VOLTS/DIV 10 mV VARIABLE HORIZONTAL SEC/DIV...

  • Page 297: Vertical Check

    TAS 200 Series Performance Verification Vertical Check The following checks verify the vertical accuracy of your oscilloscope. DC Gain Accuracy To check DC gain accuracy, perform the following steps. 1. Use the 50 precision coaxial cable to connect the standard amplitude output of the DC calibration generator to the TAS 200 series oscilloscope CH 1 (CH 2) input.
  • Page 298 TAS 200 Series Performance Verification Table 13: DC Gain and Displayed Signal Accuracy TAS 200 Volts/Div Scale Generator Output Displayed Signal Accuracy 1 mV 5 mV 4.75 to 5.25 div 2 mV 10 mV 4.75 to 5.25 div 5 mV 20 mV 3.88 to 4.12 div 10 mV...
  • Page 299 TAS 200 Series Performance Verification DC Coupled Bandwidth To check DC coupled bandwidth accuracy, perform the following steps. 1. Use the 50 precision coaxial cable to connect the output of the leveled sine wave generator to the 50 termination; then connect the 50 termination to the TAS 200 series oscilloscope CH 1 (CH 2) input.
  • Page 300 TAS 200 Series Performance Verification NOTE. At lower VOLTS/DIV settings, you might need to set TRIGGER COU- PLING to HF REJ to minimize noise or double triggering. Table 14: DC Coupled Bandwidth Volts/Div 50 kHz Bandwidth TAS 220 TAS 250 Reference Amplitude Minimum Amplitude Bandwidth...
  • Page 301 TAS 200 Series Performance Verification Variable DC Balance To check Variable DC balance accuracy, perform the following steps. 1. Set up the oscilloscope as follows: VERTICAL MODE CH1 (CH2) CH 1 (CH 2) AC-DC CH 1 (CH 2) GND CH 1 (CH 2) VOLTS/DIV 10 mV 2.

  • Page 302: Horizontal Check

    TAS 200 Series Performance Verification Horizontal Check The following checks verify the horizontal accuracy of your oscilloscope. Time Base Accuracy To check time base accuracy, perform the following steps. 1. Use the 50 precision coaxial cable to connect the output of the time mark generator to the 50 termination;...
  • Page 303 TAS 200 Series Performance Verification Table 15: Standard Time Base Accuracies HORIZONTAL Time Marker Time Mark to Graticule Accuracy SEC/DIV Setting Over Center 8 Divisions .1 s 0.1 s 0.24 division .2 s 0.2 s 0.24 division .5 s 0.5 s 0.24 division 0.24 division 0.24 division...

  • Page 304: Trigger Check

    TAS 200 Series Performance Verification Table 16: X10 MAG Time Base Accuracy HORIZONTAL Time Marker Time Mark to Graticule Over SEC/DIV Setting Center 8 Divisions 10 ns 10 ns 0.64 division 20 ns 20 ns 0.64 division 50 ns 50 ns 0.64 division 12.
  • Page 305 TAS 200 Series Performance Verification TRIGGER COUPLING TRIGGER SET TO 50% Out (release) 3. Set the leveled sine wave generator to produce a five-division output at the low-frequency trigger level listed for your instrument. See Table 17. Table 17: DC Coupled Triggering Sensitivity Minimum Trigger Waveform Amplitude TAS 220...

  • Page 306: Cursor Check

    TAS 200 Series Performance Verification Cursor Check The following checks verify the cursor accuracy of your oscilloscope. T Measurement To check cursor T measurement accuracy, implement the following steps. Accuracy 1. Set up the oscilloscope as follows: VERTICAL MODE CH1 (CH2) HORIZONTAL SEC/DIV 1 ms 2.
  • Page 307 TAS 200 Series Performance Verification 6. Position the O cursor 3 divisions below the display horizontal center with the CURSOR POSITION switch. 7. Verify that the V readout at the top-left corner of the display, reads 1 (2) between 5.78 and 6.22 V. 8.

  • Page 308: Adjustment Procedures

    TAS 200 Series Adjustment Procedures Adjustment Procedures This section contains procedures to adjust TAS 220 and TAS 250 oscilloscopes. If your instrument fails a performance requirement, use these procedures to return it to factory specifications. In this section you will find the following information: A list of adjustments A list of test equipment needed to make the adjustments Instructions on how to prepare instruments for adjustment...
  • Page 309 TAS 200 Series Adjustment Procedures Table 18: TAS 220 and TAS 250 Adjustments (Cont.) Horizontal Adjustments X10 Magnification Registration Horizontal Position 1 ms Timing 1 s and .1 s Timing X-Gain Accuracy X-Axis Offset Trigger Adjustments Trigger DC Offset Trigger Slope Balance Trigger Center Probe Compensation Cursors and Readout Adjustments...

  • Page 310: Test Equipment

    5500 - C DC Calibration Generator DC voltage levels from 100 mV to 10 V Digital Multimeter 35 V, 4 A, 0.1% Accuracy Tektronix DMM252 Digital Multimeter Termination (two required) female BNC input, male BNC output Tektronix 011-0049-01 Cable, Coaxial...

  • Page 311: Preparation For Adjustment

    TAS 200 Series Adjustment Procedures Preparation for Adjustment Perform the adjustment procedures on an as-needed basis. If an oscilloscope section fails a performance requirement, or if a section is replaced or repaired, adjust only that section. Adjusting individual sections of the oscilloscope rarely affects its overall performance.
  • Page 312 TAS 200 Series Adjustment Procedures Rear panel mounting screws (4) Rear panel Cover screws (2) Instrument cover Figure 6: TAS 220 and TAS 250 Instrument Cover Removal Handheld and Benchtop Instruments Basic Service...
  • Page 313 TAS 200 Series Adjustment Procedures Initial Settings Following the warm-up period, preset the oscilloscope to the settings listed below. Table 20: Oscilloscope Initial Settings Control Setting INTENSITY Visible display CURSOR ON/OFF VERTICAL CH 1 (CH 2) POSITION Midrange MODE CH1 (CH2) CH 1 (CH 2) VOLTS/DIV 10 mV CH 1 (CH 2) VOLTS/DIV VARIABLE...

  • Page 314: Power Supply Adjustments

    TAS 200 Series Adjustment Procedures Power Supply Adjustments To locate the adjustments and test points for the following procedures, refer to Figure 7. The Power and High Voltage board occupies the bottom-left side of the instrument below the CRT. NOTE. The power supply section affects all other sections of the instrument. If you make repairs or adjustments that change the absolute value of any power supply voltage, you must complete the entire adjustment procedure.
  • Page 315 +145 (TAS 250) +145 +140 to +150 NOTE. If a power supply measurement exceeds the limits specified in Table 21, discontinue the adjustment procedures. Contact a Tektronix service center for instrument repair. 5. Disconnect the voltmeter from the instrument. Intensity Use the following procedure to adjust the display intensity.
  • Page 316 TAS 200 Series Adjustment Procedures 3. Rotate the front panel HORIZONTAL POSITION control to move the dot to the display center. Rotate the INTENSITY control to give the dot a sharp edge. 4. Adjust VR604 on the Power and High Voltage board and the oscilloscope front panel FOCUS control until the dot becomes circular.

  • Page 317: Vertical Adjustments

    TAS 200 Series Adjustment Procedures Vertical Adjustments To locate the adjustments for the following procedures, refer to Figures 8, 9, and 10. The Main board occupies the bottom-right side of the instrument. VR301 VR303 VR502 VR112 VR408 VR108 VR110 VR208 VR210 VR109 VR405...
  • Page 318 TAS 200 Series Adjustment Procedures DC Balance Use the following procedure to adjust the DC balance. 1. Set up the oscilloscope as follows: VERTICAL MODE CH1 (CH2) CH 1 (CH 2) VERTICAL VARIABLE CAL CH 1 (CH 2) GND 2. On the oscilloscope Main board, adjust VR101 (VR201) for a minimal trace shift when switching the front panel CH 1 (CH 2) VOLTS/DIV control between 5 mV and 10 mV.
  • Page 319 TAS 200 Series Adjustment Procedures 3. Set the CH 2 VERTICAL INVERT push switch to the in position and note the new trace location. 4. On the Main board, adjust VR213 to position the trace half way back to the center horizontal graticule line.
  • Page 320 TAS 200 Series Adjustment Procedures 4. Set the CH 2 VERTICAL INVERT push switch to the in position. 5. Set the VERTICAL MODE control to the ADD position. 6. Position the trace to the center horizontal graticule. 7. Adjust VR208 to obtain a flat line. See Figure 8 for the adjustment location. MAG Sensitivity Use the following procedure to adjust the MAG Sensitivity.
  • Page 321 TAS 200 Series Adjustment Procedures VC301 3RD COMP VR302 Instrument front Figure 9: Power and High Voltage Board (Viewed from the Instrument Bottom) 7. Adjust VR107 (VR207) to optimize the waveform flatness. See Figure 8 for the adjustment locations. 8. Readjust VR103 (VR203) to reduce peak aberrations to less than 0.24 divi- sions while maintaining peak-to-peak aberrations less than 0.36 divisions.
  • Page 322 TAS 200 Series Adjustment Procedures Attenuator Compensation Use the following procedure to adjust the vertical input attenuator compensation. 1. Set up the oscilloscope as follows: VERTICAL MODE BOTH CH 1 (CH 2) VOLTS/DIV 0.1 V CH 1 (CH 2) VARIABLE CH 1 (CH 2) AC-DC 2.
  • Page 323 TAS 200 Series Adjustment Procedures 9. Connect the probe to the square wave generator and confirm that the output is a 1 kHz square wave. Adjust the generator output to produce a waveform five divisions in amplitude on the display. Adjust the probe compensation to flatten and optimize the waveform.

  • Page 324: Horizontal Adjustments

    TAS 200 Series Adjustment Procedures Horizontal Adjustments To locate the adjustments for the following procedures, refer to Figures 8 and 10. The Main board occupies the bottom-right side of the instrument. X10 MAG Registration Use the following procedure to adjust the X10 MAG registration. 1.
  • Page 325 TAS 200 Series Adjustment Procedures HORIZONTAL SEC/DIV 1 ms SWEEP UNCAL 2. Connect the time mark generator to the CH 1 input with a 50 coaxial cable and 50 termination. 3. Set up the generator to produce a 1 ms output. 4.
  • Page 326 TAS 200 Series Adjustment Procedures TRIGGER COUPLING TRIGGER SOURCE 2. Use a 50 coaxial cable to connect the square wave generator to the CH 1 input. Set up the generator for a 1 kHz 50 mV output. 3. Adjust VR109 for exactly five divisions of horizontal deflection on the display.

  • Page 327: Trigger Adjustments

    TAS 200 Series Adjustment Procedures Trigger Adjustments To locate the adjustments for the following procedures, refer to Figures 8 and 10. The Main board occupies the bottom-right side of the instrument. Trigger DC Offset Use the following procedure to adjust the trigger DC offset. 1.
  • Page 328 TAS 200 Series Adjustment Procedures TRIGGER SET TO 50% TRIGGER SLOPE Falling (push switch in) 2. Use a DMM to measure the collector voltage of Q414. Adjust VR403 for a reading of 1.40 V 0.02 V. See Figure 10 for the adjustment location. 3.

  • Page 329: Probe Compensation

    TAS 200 Series Adjustment Procedures Probe Compensation To locate the adjustment for the following procedure, refer to Figure 11. The Power and High Voltage board occupies the bottom-left side of the instrument below the CRT. ASTIG FREQ ADJ VR604 VR701 Instrument front SUB INTENSITY...

  • Page 330: Cursors And Readout Adjustments

    TAS 200 Series Adjustment Procedures Cursors and Readout Adjustments To locate the adjustments for the following procedures, refer to Figure 13. The Control and I/O board occupies the top left-hand corner of the instrument. Cursor Accuracy Use the following procedure to adjust the cursor accuracy. 1.
  • Page 331 TAS 200 Series Adjustment Procedures Y gain Y pos VRA03 VRA04 Drift VRA05 VRA01 X gain X pos VRA02 Instrument front Figure 13: Control and I/O Board (Viewed from the Instrument Top) Drift Use the following procedure to minimize the readout drift. 1.
  • Page 332 TAS 200 Series Adjustment Procedures Handheld and Benchtop Instruments Basic Service...
  • Page 333 Instructions Manual THM420 Digital Multimeter 070-9856-00...
  • Page 334 Table of Contents THM420 Digital Multimeter ....... . . Specifications .
  • Page 335 Table of Contents Handheld and Benchtop Instruments Basic Service...
  • Page 336 THM420 Digital Multimeter The Tektronix THM420 multipurpose instrument combines the functions of a digital multimeter with the ability to display waveforms. The THM420 includes the following features: digits (4000 count) LCD display with bargraph Waveform display with the press of a button...
  • Page 337 THM420 Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates in an 18 to 28 C ambient environment unless otherwise noted. NOTE. All specifications are warranted unless marked “typical.” Typical characteristics are not guaranteed but are provided for the convenience of the user.
  • Page 338 THM420 Specifications Table 2: Measurement Characteristics Characteristic Description Volts DC Ranges 400 mV, 4 V, 40 V, 400 V, 850 V AC Ranges 400 mV, 4 V, 40 V, 400 V, 600 V DC Accuracy (0.3% of reading + 2 counts) AC Accuracy 40 to 50 Hz (1.5% of reading + 5 counts)
  • Page 339 THM420 Specifications Table 2: Measurement Characteristics (Cont.) Characteristic Description Accuracy (By range) 100 Hz, 1 kHz, 10 kHz, 100 kHz (0.1% of reading + 4 counts) 1 MHz (0.5% of reading + 4 counts) Sensitivity 100 Hz, 1 kHz, 10 kHz 40 mV 100 kHz, 1 MHz 400 mV...
  • Page 340 THM420 Specifications Table 3: Waveform Display Characteristics (Cont.) Characteristic Description DC Accuracy (3.5% + 2 pixels) Horizontal Sweep Time 100 ns/div to 10 s/div Using roll mode: 0.2 s/div to 10 s/div Position Settings Left edge: 8 divisions shown after the trigger point Center screen: 4 divisions shown before and after trigger point Right edge: 8 divisions shown after the trigger point...
  • Page 341 THM420 Specifications Table 5: Environmental Characteristics (Cont.) Characteristic Description Vibration Operating 5 to 500 Hz, 3 axes (10 minutes each): 2.66 g Nonoperating 5 to 500 Hz, 3 axes (10 minutes each): 3.48 g Table 6: Optical Interface Characteristics Characteristic Description Infrared Wavelength 945 nm...
  • Page 342 THM420 Performance Verification Performance Verification This section contains procedures to verify that the THM420 performs as warranted. If your instrument fails any of the checks, it needs adjustment and or repair. The performance verification procedures provide a valid confirmation of instrument electrical characteristics and function under the following conditions: The instrument operates in an 18 to 28 C environment with a relative humidity of less than 80%.
  • Page 343 THM420 Performance Verification Test Equipment The performance verification procedures use external traceable test equipment to directly check warranted characteristics. The following procedures use either the Wavetek 9100 Universal Calibration System with Oscilloscope Calibration Module (Option 250) or the Fluke 5500A Multi-product Calibrator with Oscilloscope Calibration Option 5500A-SC.
  • Page 344 THM420 Performance Verification Table 9: DC Voltage Accuracy Readout Limits THM420 Range DC Voltage Source Minimum Maximum 400m V 300.0 mV 298.9 mV 301.1 mV 3.000 V 2.989 V 3.011 V 40 V 30.00 V 29.89 V 30.11 V 400 V 300.0 V 298.9 V 301.1 V...
  • Page 345 THM420 Performance Verification Resistance The following check verifies resistance measurement accuracy. 1. Turn the THM420 rotary switch to . 2. Connect the resistance source output to the THM420 COM and the input connectors. 3. Set the controls of the THM420 and the resistance source to each of the values listed in Table 11;...
  • Page 346 THM420 Performance Verification Table 12: Frequency Accuracy Frequency Source Readout Limits THM420 Range Voltage Frequency Minimum Maximum 100 kHz 1.000 V 50 kHz 49.91 kHz 50.09 kHz 4. Disconnect the test setup. DC Amperes The following check verifies DC ampere measurement accuracy. 1.
  • Page 347 THM420 Performance Verification Table 14: AC Amperes Accuracy AC Current Source Readout Limits TH 4 THM420 Rotary Switch Current Frequency Minimum Maximum 200.0 mA 50 Hz 195.9 mA 204.1 mA 5. Set the METER/SCOPE button to SCOPE mode. 6. Verify that the current measurement is displayed. 7.
  • Page 348 THM420 Performance Verification 8. Set the THM420 trigger slope to and verify that the waveform display starts on the falling edge. 9. Disable the voltage source output. 10. Disconnect the test setup. Printer The following check verifies printer operation. 1. Press and hold the THM420 PRINT button for two seconds. Verify that the icon appears in the upper-right corner of the display.
  • Page 349 THM420 Adjustment Procedures Adjustment Procedures This section contains procedures to adjust the THM420. If your instrument fails a performance requirement, use these procedures to return it to factory specifica- tions. In this section you will find the following information: Instructions on how to prepare the instrument for adjustment Step-by-step adjustment procedures The procedures in this section do not verify performance.
  • Page 350 THM420 Adjustment Procedures To reinstall the bottom cover following the adjustments, perform steps 1 and 4 above in reverse order. Battery pack Mounting screws Mounting screws Bottom cover Figure 2: Removing the Bottom Cover Access the Main Circuit You must access the main circuit board to make adjustments. To expose the Board board, refer to Figure 3 while performing the following steps.
  • Page 351 THM420 Adjustment Procedures Mounting screws Lift and position circuit board Fold back shield Main circuit board Figure 3: Exposing the Main Circuit Board Adjustment Procedure To return your instrument to factory calibration, perform the following procedure. 1. Turn the THM420 rotary switch to V . 2.
  • Page 352 THM420 Adjustment Procedures 11. Turn the rotary switch to mA . 12. Press the METER/SCOPE button to select SCOPE mode. 13. Set the AC/DC button to DC. 14. Set the vertical offset (POS) to 0 mA. 15. Set the vertical SCALE to 2 mA. 16.
  • Page 353 THM420 Adjustment Procedures Handheld and Benchtop Instruments Basic Service...
  • Page 354 Instructions Manual THM500 Series Instruments 070-9857-00...
  • Page 355 Table of Contents THM500 Series Instruments ....... . . Specifications .
  • Page 356 Table of Contents Handheld and Benchtop Instruments Basic Service...

  • Page 357: Thm500 Series Instruments

    THM500 Series Instruments The Tektronix THM500 Series instruments combine the features of a complete digital multimeter (DMM) with the power of an oscilloscope, all in a single package. The DMM portion of these instruments measure true RMS AC and DC voltage, resistance, continuity with audible mode, and a diode test.
  • Page 358 THM500 Series Product Description THM500 series instruments will also store waveforms, settings, and displays. With these features, you can do the following: Recall settings Automate test procedures Save waveforms and screens in the field for later analysis Transfer waveforms and screens to a personal computer (requires optional communications adapter) Handheld and Benchtop Instruments Basic Service...

  • Page 359: Specifications

    THM500 Series Specifications Specifications The characteristics listed in this section apply under the following conditions: The instrument operates within the environmental conditions specified in Table 4 on page 8, unless otherwise noted. The instrument warms up for at least 5 minutes. NOTE.
  • Page 360 THM500 Series Specifications Table 2: DMM Specifications (Cont.) General Additional Readouts MIN: Minimum voltage or resistance MAX: Maximum voltage or resistance MAX–MIN: Difference between MAX and MIN HOLD: Value of the main reading when the HOLD button is pressed HOLD: Difference between HOLD reading and active reading DC Voltage Range and Resolution...
  • Page 361 THM500 Series Specifications Table 2: DMM Specifications (Cont.) Diode Test Range 0 to 2 V. Red input connector is positive. Continuity Check Indication Audible tone and graphic of a closed switch displayed when resistance is <50 (typical). Indicators optionally disabled. Table 3: Scope Specifications 550 560 565 Modes...
  • Page 362 THM500 Series Specifications Table 3: Scope Specifications (Cont.) Vertical Mathematics Subtract: (CH 1 – CH 2) Add: (CH 1 + CH 2) Acquisition Modes Sample (Normal), Spike Detect, Roll, Run/Hold, Smooth, Dynamic DSP Acquisition Rate All modes except Dynamic DSP: Up to five waveforms per second Dynamic DSP Mode: Up to 750 waveforms per second...
  • Page 363 THM500 Series Specifications Table 3: Scope Specifications (Cont.) Waveform Display Display Update Rate Dynamic Display Digital Signal Processing maps up to 750 waveforms/s on screen, simulating an analog-like display. Memories Setups Each setup memory stores the complete state of the instrument, including the multimeter state.
  • Page 364 THM500 Series Specifications Table 4: General Specifications (Cont.) Environmental Temperature Operating: 0 to 50 C (32 to 122 F) Storage: –20 to +70 C (–4 to 158 F) Humidity, Operating 0 to 40 C (32 to 104 F): Up to 90% relative humidity noncondensing (60% for 4 and 40 M measurements) 41 to 50 C (106 to 122 F): 60% relative humidity noncondensing.

  • Page 365: Performance Verification

    THM500 Series Performance Verification Performance Verification This section contains procedures to verify that the THM500 Series instruments perform as warranted. Verify instrument performance whenever the accuracy or function of your instrument is in question. The performance verification procedures provide a valid confirmation of instrument electrical characteristics and function under the following conditions: The instrument operates within the environmental conditions specified in Table 4 on page 8 during the verification process.

  • Page 366: Test Equipment

    10 , 100 , 1 k , 10 k , 100 k , 1 M , with accuracy of 0.125% or better Termination 2%, 2 W Tektronix 011-0049-xx BNC Cable 50 , 1.04 m (42 inch) long Tektronix 012-0057-xx Safety Banana Lead Patch Cord...

  • Page 367: Functional Test

    THM500 Series Performance Verification Functional Test The following steps verify basic instrument operation and reset the THM500 series instruments to factory default settings. 1. Install fully charged batteries or use the THMCOM1 Communications Adapter or the THM5AC Power Adapter optional accessories to provide power.

  • Page 368: Dmm Verification

    THM500 Series Performance Verification DMM Verification The following checks verify the performance of the DMM functions. The oscilloscope verification begins on page 15. NOTE. The THM575 can display menus in more than one language. The language selections are located in the Utility menu. DC Voltage Accuracy The following check verifies DC voltage accuracy.
  • Page 369 THM500 Series Performance Verification Table 7: DC Voltage Accuracy Test Limits Instrument Range DC Voltage Source Instrument Readout 400 mV 300 mV 298.0 to 302.0 2.980 to 3.020 40 V 30 V 29.80 to 30.20 400 V 300 V 298.0 to 302.0 850 V 500 V 492 to 508...
  • Page 370 THM500 Series Performance Verification Resistance Accuracy The following check verifies resistance accuracy. 1. Set the THM500 series instrument to METER mode displaying . Connect the THM500 series instrument to the resistance source as shown in Figure 3. cable BNC to dual banana cable Resistance source THM5xx...

  • Page 371: Oscilloscope Verification

    THM500 Series Performance Verification Oscilloscope Verification The following checks verify the performance of the oscilloscope functions. The DMM checks begin on page 12. NOTE. The THM575 can display the menus in more than one language. The language selections are located in the Utility menu. Noise The following check verifies an acceptable noise level.
  • Page 372 THM500 Series Performance Verification Input Leakage Trace Shift The following check verifies an acceptable input leakage trace shift. 1. Use the THM500 series instrument menus to set the sampling mode to SAMPLE (NORMAL for the THM571); then turn the menus off. 2.
  • Page 373 THM500 Series Performance Verification cable termination BNC to dual banana cable CH 1 Time Mark generator THM5xx Figure 6: Time Base Accuracy Test Setup 3. Set the time mark generator for 1 s markers. 4. On the THM500 series instrument, press the POSITION/SCALE button until the readout shows SCALE in the lower-right corner.
  • Page 374 THM500 Series Performance Verification Vertical Accuracy The following check verifies vertical accuracy. 1. Connect the voltage source output to the THM500 series instrument CH 1 and COM inputs as shown in Figure 7. Assure that the ground connection for each adapter connects to the common (or ground) connector of its associated instrument.
  • Page 375 THM500 Series Performance Verification Observe the V readout on the THM500 series instrument display and verify that its absolute value falls within the range listed in the fourth column. Table 10: Vertical Accuracy Test Settings THM500 Series DC Voltage Source DC Voltage Source Instrument V Readout Vertical Scale...
  • Page 376 THM500 Series Performance Verification 3. On the THM500 series instrument, press the POSITION/SCALE button until the readout shows SCALE in the lower-right corner. 4. For each row of Table 11, perform the following steps: a. Use the THM500 series instrument buttons to set the vertical scale to the setting listed in the first column.
  • Page 377 THM500 Series Performance Verification 2. Connect the THM500 series instrument CH 1 input to the COM input using a patch cord as shown in Figure 9. cable termination BNC to dual banana cable Leveled Sine CH 1 Wave generator THM5xx Figure 9: Crosstalk Between DMM And Scope Test Setup 3.
  • Page 378 THM500 Series Performance Verification cable Patch cord termination BNC to dual banana cable Leveled Sine CH 2 Wave generator THM5xx CH 1 Figure 10: Crosstalk Between Scope Channels Test Setup 3. On the THM500 series instrument, press the POSITION/SCALE button until the readout shows SCALE in the lower-right corner.
  • Page 379 THM500 Series Performance Verification DC Offset The following check assesses the DC offset. 1. Use the THM500 series instrument menus to select RESET ALL. This sets the vertical position to zero. 2. Return the THM500 series instrument to SCOPE mode. 3.
  • Page 380 THM500 Series Performance Verification Handheld and Benchtop Instruments Basic Service...

This manual is also suitable for:

Ps2520 seriesTas 200 seriesThm500 seriesDtm510Dtm520Dcm300 ... Show all

Table of Contents