Tektronix TCP202 Instruction Manual
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Tektronix TCP202 Instruction Manual

Tektronix TCP202 Instruction Manual

15 ampere ac/dc current probe
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TCP202
15 Ampere AC/DC Current Probe
ZZZ
Instruction Manual
*P070954203*
070-9542-03

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  • Page 1 TCP202 15 Ampere AC/DC Current Probe Instruction Manual *P070954203* 070-9542-03...
  • Page 3 TCP202 15 Ampere AC/DC Current Probe Instruction Manual www.tektronix.com 070-9542-03...
  • Page 4 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.
  • Page 5 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

  • Page 7: Table Of Contents

    Preparation for Shipment ..................Performance Verification and Adjustment ..............Test Procedure Conditions ................... Equipment Required..................DC Accuracy ....................Bandwidth ..................... Rise Time ...................... Calibrator Accuracy (Optional) ................Replaceable Parts ....................Parts Ordering Information .................. Using the Replaceable Parts List................TCP202 Instruction Manual...
  • Page 8 Figure 24: Removing the Top Half of the Probe ............... Figure 25: Removing the Probe Slide ................Figure 26: Removing the Current Transformer ..............Figure 27: TCP202 and Replaceable Parts and Accessories..........Figure 28: Replaceable Parts - Compensation Box ............Figure 29: TCP202 Optional Accessories ..............
  • Page 9 Table 3: Nominal Characteristics ................Table 4: List of Equipment Required................Table 5: Parts List Column Descriptions ............... Table 6: TCP202 Replaceable Parts and Accessories ............Table 7: Replaceable Parts - Compensation Box .............. Table 8: Optional Accessories ................... TCP202 Instruction Manual...

  • Page 10: General Safety Summary

    Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present. Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. TCP202 Instruction Manual...
  • Page 11 DANGER indicates an injury hazard immediately accessible as you read the marking. WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. The following symbol(s) may appear on the product: TCP202 Instruction Manual...

  • Page 12: Service Safety Summary

    Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. TCP202 Instruction Manual...

  • Page 13: Compliance Information

    Pollution Degree 3. Conductive pollution, or dry, nonconductive pollution that becomes conductive due to condensation. These are sheltered locations where neither temperature nor humidity is controlled. The area is protected from direct sunshine, rain, or direct wind. TCP202 Instruction Manual...
  • Page 14 Compliance Information Pollution Degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical outdoor locations. Pollution Degree Pollution Degree 2 (as defined in IEC 61010-1). Note: Rated for indoor use only. viii TCP202 Instruction Manual...

  • Page 15: Environmental Considerations

    Union requirements according to Directives 2002/96/EC and 2006/66/EC on waste electrical and electronic equipment (WEEE) and batteries. For information about recycling options, check the Support/Service section of the Tektronix Web site (www.tektronix.com). Restriction of Hazardous This product has been classified as Monitoring and Control equipment, and is outside the scope of the 2002/95/EC RoHS Directive.
  • Page 16 Compliance Information TCP202 Instruction Manual...

  • Page 17: Getting Started

    Features and Accessories The TCP202 Current Probe is a 50 MHz current probe for use with Tektronix oscilloscopes that have the TekProbe interface. (See Figure 1.) The probe can measure up to 15 A (DC + peak AC).
  • Page 18 If your oscilloscope does not support the TekProbe interface, you can use the optional 1103 probe power supply as an effective interface. Contact your local Tektronix representative for more information. Degauss. The degauss button removes residual magnetism from the probe core that would otherwise cause measurement errors.

  • Page 19: Connecting The Probe To The Oscilloscope

    Getting Started Connecting the Probe to the Oscilloscope Install the TCP202 Current Probe as follows: 1. Set the input channel to a zero reference point. 2. Connect the output of the probe to the TekProbe interface of the oscilloscope or other measurement instrument. The measurement instrument input must have a ground reference.

  • Page 20: Compensating The Probe (Optional)

    DC accuracy of the probe and the procedure for accessing the internal gain adjustment. (See page 36, DC Accuracy.) (See page 28, Accessing the Gain Adjustment.) Repeat this procedure whenever you move the current probe to another input. TCP202 Instruction Manual...

  • Page 21: Operating Basics

    19.) Multiple Current Probes Up to four TCP202 current probes may be used simultaneously on one TDS Series oscilloscope if the total in-phase current measured by all of the probes does not exceed 40 amperes. Above 40 amperes, the TekProbe interface may overload and cause measurement or display errors.

  • Page 22: Measurement Procedures And Techniques

    Ensure that the circuit under test is able to absorb this induced voltage and current. Measurement Procedures and Techniques This section presents procedures and techniques for basic current measurements. TCP202 Instruction Manual...
  • Page 23 5. Read the measurement. Adjust the display of the measurement instrument as necessary. 6. If necessary, adjust the oscilloscope offset control to offset a DC level. (AC coupling is automatically disabled on TDS oscilloscopes when the probe is connected.) TCP202 Instruction Manual...

  • Page 24: Figure 4: Polarity Of Current Flow

    To avoid personal injury or equipment damage, do not exceed the specified electrical limits of the oscilloscope or any applicable accessories. When using multiple conductors, ensure that there is adequate insulation between conductors and do not exceed the current limits on either conductor. TCP202 Instruction Manual...
  • Page 25 100 mA DC and is wrapped around the probe five times, the DC bucking current is 100 mA multiplied by 5, or 500 mA DC. NOTE. Adding a second conductor to the probe reduces the upper bandwidth limit of the probe. TCP202 Instruction Manual...

  • Page 26: Figure 6: Increasing The Dc Measurement Range

    Winding multiple turns around the probe increases the insertion impedance of the probe which can affect the accuracy of your measurements and the circuit under test. See the graphs of insertion impedance. (See Figure 13 on page 20.) (See Figure 15.) TCP202 Instruction Manual...

  • Page 27: Figure 7: Increasing Probe Sensitivity

    Operating Basics Figure 7: Increasing Probe Sensitivity TCP202 Instruction Manual...
  • Page 28 Operating Basics TCP202 Instruction Manual...

  • Page 29: Reference

    1. Connect the output of a differential voltage probe (such as the P5205) to one channel and the output of the TCP202 Current Probe to the other channel of the oscilloscope.

  • Page 30: Inductance Measurements

    Figure 8: Measuring Inductance with a Low-Impedance Source NOTE. If the probe impedance is a significant part of the total circuit inductance, measurement accuracy will be affected. Refer to the probe specifications for probe insertion impedance. TCP202 Instruction Manual...

  • Page 31: Figure 9: Linear Current Versus Time Ramp

    L is the inductance in henries, t is the time required for the current to rise or fall 63.2% of the total current value, and R is the source resistance of the pulse generator. Figure 10: Measuring Inductance with a High-Impedance Source TCP202 Instruction Manual...

  • Page 32: Continuity Test Of Multiple-Conductor Cable

    If there is no current or the current is abnormally low, then the conductor has a continuity problem. If the current is abnormally high, then the conductor may have a short to ground. TCP202 Instruction Manual...

  • Page 33: Specifications

    Specifications The specifications in the tables that follow apply to a TCP202 Current Probe installed on a Tektronix TDS 520B Oscilloscope. (See Table 1.) through (See Table 3.) The tables also list the specifications for the calibrator that can be used on some TDS oscilloscopes to increase the DC accuracy.
  • Page 34 Operating: tested at 90 to 95% RH, +30 ° to +50 °C Nonoperating: tested at 90 to 95% RH, +30 ° to +60 °C Altitude Operating: Up to 3000 meters (10,000 feet) Nonoperating: Up to 12,192 meters (40,000 feet) TCP202 Instruction Manual...

  • Page 35: Typical Characteristics

    Figure 16 on page 21.) Magnitude: (See Figure 13 on page 20.) (See Figure 15 on page 20.) Time (Propagation) Delay 17 ns Amp-second Product 500 μA-s (See Figure 17 on page 21.) Figure 12: Frequency Derating TCP202 Instruction Manual...

  • Page 36: Figure 13: Insertion Impedance - Magnitude - Single Conductor

    Specifications Figure 13: Insertion Impedance - Magnitude - Single Conductor Figure 14: Insertion Impedance - Phase Angle - Single Conductor Figure 15: Insertion Impedance - Magnitude - 10-Turn #24 AWG Primary TCP202 Instruction Manual...

  • Page 37: Figure 16: Insertion Impedance - Phase Angle - 10-Turn #24 Awg Primary

    Specifications Figure 16: Insertion Impedance - Phase Angle - 10-Turn #24 AWG Primary Figure 17: Current Ratings TCP202 Instruction Manual...

  • Page 38: Nominal Characteristics

    3.8 mm ( 0.15 in) diameter Dimensions, Probe Head Length: 200 mm (7.76 in) Width: 16 mm (0.62 in) Height: 32 mm (1.25 in) Unit Weight (probe only) 0.19 kg (0.44 lbs) Cable Length 2.16 m (85 in) Calibrator Turns TCP202 Instruction Manual...

  • Page 39: Maintenance

    TekProbe interface pins, probe collar, compensation box covers, and the gain adjustment. WARNING. The probe must only be serviced by qualified service personnel. Refer to General Safety Summary and Service Safety Summary before starting any disassembly, replacement, or repair. TCP202 Instruction Manual...
  • Page 40 Do not service electrical equipment alone. If you must service or adjust equipment that is attached to a signal or power source, do so only when another person capable of rendering first aid and resuscitation is present. TCP202 Instruction Manual...

  • Page 41: Figure 18: Replacing Tekprobe Interface Pins

    finger pressure. If necessary, seat the pin into the connector by pressing the tip of the pin gently but firmly against a hard surface. Figure 18: Replacing TekProbe Interface Pins TCP202 Instruction Manual...

  • Page 42: Figure 19: Replacing The Tekprobe Collar

    (See Figure 19.) Align the tab to the slot and gently press the two pieces together. Once installed, the TekProbe collar should rotate freely to lock and unlock. Figure 19: Replacing the TekProbe collar TCP202 Instruction Manual...

  • Page 43: Figure 20: Removing The Compensation Box Covers

    2. Hold the open edge apart, and use the tool to open the other side of the compensation box. 3. With both sides of the box open, gently separate the two halves of the compensation box. Figure 20: Removing the Compensation Box Covers TCP202 Instruction Manual...

  • Page 44: Figure 21: Accessing The Gain Adjustment

    DC gain to exactly 5 divisions. NOTE. The gain of the probe must be within ±2% for the compensation routine to work properly. 5. After adjusting the probe, disconnect the probe from the setup. Figure 21: Accessing the Gain Adjustment TCP202 Instruction Manual...

  • Page 45: Figure 22: Replacing The Compensation Box Cover

    2. Press the catches of the cover in and lower the cover. 3. Slide the tab into the notch. 4. Firmly press the pieces together until the cover catches snap into place. Figure 22: Replacing the Compensation Box Cover TCP202 Instruction Manual...

  • Page 46: Probe Head Disassembly

    1. Remove the two screws from the bottom of the probe and pull the strain relief boot back. (See Figure 23.) Figure 23: Removing the Strain Relief Boot 2. Move the probe slide assembly to the open position. TCP202 Instruction Manual...

  • Page 47: Figure 24: Removing The Top Half Of The Probe

    3. Hold the probe in a top-up horizontal position and slide the top half of the probe body off. (See Figure 24.) Figure 24: Removing the Top Half of the Probe 4. Remove the metal ball. TCP202 Instruction Manual...

  • Page 48: Figure 25: Removing The Probe Slide

    If necessary, carefully desolder the connection before attempting to remove the circuit board. CAUTION. To prevent damage to the circuit board when desoldering, use only enough heat to separate or attach connections. Excess heat may cause irreparable damage to the circuit board. TCP202 Instruction Manual...

  • Page 49: Figure 26: Removing The Current Transformer

    Should the plastic slide assembly require lubrication, sparingly apply silicone-based grease to the parts. Probe reassembly is the reverse of steps 1 through 7. NOTE. Exercise care when fitting the slide back into the probe body; aligning the switch contacts can require patience. TCP202 Instruction Manual...

  • Page 50: Obtaining Replacement Parts

    Maintenance Obtaining Replacement Parts Replacement parts may be obtained through your local Tektronix field office or representative. (See page 39, Replaceable Parts.) Preparation for Shipment If you must ship your Tektronix product, please use the original packaging if possible. If the original packaging is unfit for use or not available, use the following packaging guidelines: 1.

  • Page 51: Performance Verification And Adjustment

    Performance Verification and Adjustment The procedures in this section allow you to demonstrate that the TCP202 Current Probe and the optional calibrator meet the specified levels of performance and to adjust them if necessary. Test Procedure Conditions These procedures are valid only under the following conditions: The system has been calibrated at an ambient temperature between +20 °C...

  • Page 52: Equipment Required

    Equipment Required The following procedure verifies the warranted electrical characteristics of the TCP202 Current Probe. The equipment required, an example or part number of the equipment, and an explanation of the purpose of the equipment is shown below. (See Table 4.) NOTE.

  • Page 53: Bandwidth

    5 ns. (If you are using a digitizing oscilloscope, set the acquisition mode to Average and the number of samples to 16.) 4. Set the fast-rise amplitude to display 2 divisions on screen. 5. Check that the rise time is ≤7 ns. 6. Disconnect the setup. TCP202 Instruction Manual...

  • Page 54: Calibrator Accuracy (Optional)

    2. Check that the input resistance of the calibrator measures 42.00 Ω. 3. If the reading is not exact, insert a flat-blade adjustment tool into the hole in the left side of the calibrator and adjust the resistance to a value of 42.00 Ω. 4. Disconnect the setup. TCP202 Instruction Manual...

  • Page 55: Replaceable Parts

    Replaceable Parts This section contains a list of the replaceable modules for the TCP202 Current Probe. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative.

  • Page 56: Using The Replaceable Parts List

    Using the Replaceable Parts List This section contains a list of the mechanical and/or electrical components that are replaceable for the TCP202 Current Probe. Use this list to identify and order replacement parts. The table below describes each column in the parts list.
  • Page 57 Replaceable Parts Table 6: TCP202 Replaceable Parts and Accessories (cont.) Fig. & Index Tektronix Part Number Number Name & Description 650-3463-00 BD/CABLE ASSY:CABLE W/TCP202 PROBE CIRCUIT BOARD 213-0087-00 SCREW, TPG, TC:2-32 X 0.5, TYPE BT, PANHEAD, STEEL, CADIUM PLATED, POZIDRIVE...

  • Page 58: Figure 28: Replaceable Parts - Compensation Box

    CUSHION:FOAM CUSHION, 30 PPI POLY FILTER FOAM, 0.005 THK ACRYLIC ADHESIVE, 1 SIDE, 0.850 X 0 206-0430-00 COMP BOX:COVER, BOTTOM HALF 334-9140-00 MARKER, IDENT:BACK IDENTIFICATION LABEL, GE LEXAN, POLY, TCP202 Figure 29: TCP202 Optional Accessories Table 8: Optional Accessories Fig. & Index...

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