Keithley 2110 Calibration Manual
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Keithley 2110 Calibration Manual

5 1/2 digit multimeter
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Model 2110 5½ Digit Multimeter
Calibration Manual
2110-905-01 Rev. C / August 2013
*P211090501C*
2110-905-01
A G r ea ter M e a su r e of C o nf i d e nce
A Tektronix Company

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  • Page 1 Model 2110 5½ Digit Multimeter Calibration Manual 2110-905-01 Rev. C / August 2013 *P211090501C* 2110-905-01 A G r ea ter M e a su r e of C o nf i d e nce A Tektronix Company...
  • Page 2 All rights reserved. Any unauthorized reproduction, photocopy, or use of the information herein, in whole or in part, without the prior written approval of Keithley Instruments, Inc. is strictly prohibited. All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments, Inc.
  • Page 4 Keithley Instruments products are designed for use with electrical signals that are measurement, control, and data I/O connections, with low transient overvoltages, and must not be directly connected to mains voltage or to voltage sources with high transient overvoltages.
  • Page 5 (note that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement component, call a Keithley Instruments office for information.

  • Page 6: Table Of Contents

    Table of Contents Calibrating and adjusting the Model 2110 ............... 1-1 Introduction .......................... 1-1 Control software ........................1-1 Environmental conditions ..................... 1-3 Calibration considerations ....................1-3 Recommended test equipment .................... 1-4 Calibration code ........................1-4 Adjustment ........................ 2-1 Voltage function adjustment (DC and AC) ................2-1 DCV range adjustment ......................

  • Page 8: Calibrating And Adjusting The Model 2110

    You must have one of the following items installed on the remote interface in order to obtain the proper VISA layer:  Keithley I/O Layer 5.0 or greater (included on the CD-ROM that came with your Model 2110)  NI-VISA 3.1 or greater ...
  • Page 9 5. The procedure consists of connecting the Fluke 5700A/5725A and 5520A/5522A output to the Model 2110 front panel input, setting up appropriate ranges, and performing calibration by sending specific SCPI commands. These commands are entered into the Send String field followed by clicking the Write button.

  • Page 10: Environmental Conditions

    • Make sure the calibrator is in OPERATE before you complete each calibration step. • Do not connect test equipment to the Model 2110 through a scanner or other switching equipment. • If an error occurs during calibration, the Model 2110 will generate an appropriate error message.

  • Page 11: Recommended Test Equipment

    Model 2110 5½ Digit Multimeter Calibration Manual Recommended test equipment Use the Fluke 5700A Calibrator and the Fluke 5725A Amplifier (or the equivalent or better) and the Fluke 5520A/5522A for temperature and capacitance to calibrate the Model 2110. Calibration code To unlock and initiate calibration: 1.

  • Page 12: Adjustment

    (ACV) adjustment, the ranges are 100 mV, 1 V, 10 V, 100 V, and 750 V RMS at 1 kHz. Do not apply more than 1000 V (peak) to the Model 2110. Applying excess voltage may damage your Model 2110 and create a shock hazard that could result in injury or death.
  • Page 13 Cali OK 13. Set the Model 5700A output mode to STANDBY. 14. Set the Model 2110 to the 1 V range by sending the following command: CONF:VOLT:DC 1 15. Set the Model 5700A for 0 V DC and set the output to the OPERATE mode.
  • Page 14 Cali OK 32. Set the Model 5700A output mode to STANDBY. 33. Configure the Model 2110 for the 100 V range by sending the following command: CONF:VOLT:DC 100 34. Set the Model 5700A to 0 V DC and set the output mode to OPERATE.

  • Page 15: Acv Range Adjustment

    1. Set the Model 5700A to 0.01 V at 1 kHz and the output mode to STANDBY. 2. Using coaxial cable with dual banana terminals connect the Fluke 5700A output HI and LO to the Model 2110 input HI and LO terminals. Allow connections to stabilize for a minimum of five minutes before proceeding.

  • Page 16: Frequency Range Adjustment

    3. Configure the Model 2110 for the 1 kHz range by sending the following command: CONF:FREQ 4. Configure the Model 2110 for 1 V range and an aperture of 1 by sending the following commands. FREQ:VOLT:RANGE 1 FREQ:APER 1 2110-905-01 Rev.

  • Page 17: Ohms Function Adjustment

    STANDBY. 2. Using shielded, low thermal EMF cables, connect the Fluke 5700A output HI and LO to the Model 2110 input HI and LO terminals. Allow connections to stabilize for a minimum of five minutes before proceeding. 3. Configure the Model 2110 for 2-wire, 100 Ω resistance measurements by sending the following...
  • Page 18 20. Wait until the following message is displayed on the Model 2110: Cali OK 21. Set the Model 5700A output mode to STANDBY. 22. Configure the Model 2110 for 2-wire, 10 kΩ resistance measurements by sending the following command: CONF:RES 1E4 23.
  • Page 19 47. Wait until the following message is displayed on the Model 2110: Cali OK 48. Set the Model 5700A output mode to STANDBY. 49. Configure the Model 2110 for 2-wire, 10 MΩ resistance measurements by sending the following command: CONF:RES 1E7 50.

  • Page 20: Ohms, Low Range Adjustment (100Ω - 10Mω) 4 Wire

    1. Set the Model 5700A to 0Ω, EX SNS on, EX GRD off, and the output mode to STANDBY. 2. Using shielded, low thermal EMF cables, connect the Fluke 5700A output HI and LO to the Model 2110 input HI and LO terminals. Allow connections to stabilize for a minimum of five minutes before proceeding.
  • Page 21 Section 2: Adjustment Model 2110 5½ Digit Multimeter Calibration Manual 21. Set the Model 5700A output mode to STANDBY. 22. Configure the Model 2110 for 4-wire, 10 kΩ resistance measurements by sending the following command: CONF:FRES 1E4 23. Set the measurement rate to 10 PLC by sending the following command: FRES:NPLC 10 24.

  • Page 22: Ohms, High Range Adjustment (100 Mω)

    2. Using shielded, low thermal EMF cables, connect the Fluke 5700A output HI, output LO, sense HI, and sense LO terminals to the Model 2110 input HI, input LO, sense HI, and sense LO terminals. Allow connections to stabilize for a minimum of five minutes before proceeding.

  • Page 23: Current Function Adjustment (Dc And Ac)

    STANDBY. 2. Using shielded, low thermal EMF cables, connect the Fluke 5725A current output HI and output LO to the Model 2110 input AMPS and input LO terminals. Allow connections to stabilize for a minimum of five minutes before proceeding.

  • Page 24: Dc High Current Adjustment

    DC high current adjustment 1. Connect the Model 2110 3 A input jack to the 5725A 11A output (white to red on the Model 5725 and black of the Model 2110 to black of the Model 5725. Configure the Model 5700 to output current to the Model 5725A.

  • Page 25: Ac Current Range Adjustment

    Model 2110 5½ Digit Multimeter Calibration Manual 14. Set the Model 5700A output mode to STANDBY. 15. Configure the Model 2110 for the 10 A DC current range by sending the following command: CONF:CURR:DC 10 16. Set the measurement rate to 10 PLC by sending the following command: CURR:NPLC 10 17.

  • Page 26: Ac High Current Adjustment

    AC high current adjustment 1. Connect the Model 2110 3 A input jack to the 5725A 11A output (white to red on the Model 5725A and black of the Model 2110 to black of the Model 5725A). Configure the Model 5700 to output current to the Model 5725A.

  • Page 27: Temperature Function Adjustment

    1. Set the Model 5520A/5522A to 0 Deg C, and the output mode to STANDBY. 2. Using Type K thermocouple wire with TC jacks on both ends, connect the Fluke 5520A/5522A TC output to the Model 2110 input TC terminals. Allow connections to stabilize for a minimum of five minutes before proceeding.
  • Page 28 16. Wait until the following message is displayed on the Model 2110: Cali OK 17. Configure the Model 2110 for the 100 µF capacitance range by sending the following command: CONF:CAP 1E-4 18. Set the Model 5520A/5522A output mode to STANDBY.

  • Page 29: Calibration Date

    Section 2: Adjustment Model 2110 5½ Digit Multimeter Calibration Manual Calibration date 1. Update the calibration date by sending the following command: CAL:PROT:DATE <”MM/DD/YYYY”> The date <string> must be enclosed in double quotes (“<string>”). Example: If calibration date is 5 Apr 2012, send the following command: CAL:PROT:DATE ”04/05/2012”...

  • Page 30: Performance Verification

    Performing accuracy verification ..........3-1 Performing accuracy verification After calibration is completed, the Model 2110 should be verified to ensure that its performance is within the manufacturer’s specifications. Perform accuracy verifications using the Fluke 5700A/5725A and 5520A/5522A standards. Refer to the following tables for accuracy limits for the specified ranges.

  • Page 31: Ac Voltage Accuracy Verification

    Section 3: Performance verification Model 2110 5½ Digit Multimeter Calibration Manual AC voltage accuracy verification AC VOLTAGE ACCURACY VERIFICATION Range Test Point Accuracy Limits Upper Limit Lower Limit 100 mV 100.0000 mV @ 10 Hz 100.170 mV 99.830 mV 100.0000 mV @ 30 kHz 100.300 mV...

  • Page 32: Resistance Accuracy Verification

    Model 2110 5½ Digit Multimeter Calibration Manual Section 3: Performance verification Resistance accuracy verification RESISTANCE ACCURACY VERIFICATION Range Test Point Accuracy Limits Upper Limit Lower Limit 100 Ω 100.0000 Ω 100.025 Ω 99.9755 Ω 1 kΩ 1.000000 kΩ 1.00022 kΩ...

  • Page 33: Ac Current Accuracy Verification

    Section 3: Performance verification Model 2110 5½ Digit Multimeter Calibration Manual AC current accuracy verification AC CURRENT ACCURACY VERIFICATION Range Test Point Accuracy Limits Upper Limit Lower Limit 0.90000 A @ 60 Hz 0.90220 A 0.89780 A 0.90000 A @ 5 kHz 0.90220 A...

  • Page 34: Temperature Accuracy Verification

    Model 2110 5½ Digit Multimeter Calibration Manual Section 3: Performance verification Temperature accuracy verification TEMPERATURE ACCURACY VERIFICATION Range Test Point Accuracy Limits Upper Limit Lower Limit TC Type K 100.000 °C 101.000 °C 99.000 °C 0.000 °C 1.000 °C -1.000 °C -100.000 °C...
  • Page 35 All other trademarks and trade names are the property of their respective companies. Keithley Instruments, Inc. Corporate Headquarters • 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 • 1-888-KEITHLEY • www.keithley.com A Gr ea t er M e a sur e of C onfi denc e...

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