RIGOL RP1002C Current Probe User Guide

RIGOL RP1002C Current Probe

Guaranty and Declaration

Copyright
© 2012 RIGOL Technologies, Inc. All Rights Reserved.

Trademark Information
RIGOL is a registered trademark of RIGOL Technologies, Inc.

Publication number
UGE17102-1110

Notices

• RIGOL products are protected by patent law in and outside of P.R.C.
• RIGOL reserves the right to modify or change parts of or all the specifications and pricing policies at the company’s sole decision.
• Information in this publication replaces all previously corresponding material.
• RIGOL shall not be liable for losses caused by either incidental or consequential in connection with the furnishing, use, or performance of this manual as well as any information contained.
• Any part of this document is forbidden to be copied photocopied or rearranged without prior written approval of RIGOL.

Product Certification
RIGOL guarantees this product conforms to the national and industrial standards in China as well as the ISO9001:2008 standard and the ISO14001:2004 standard. Another international standard conformance certification is in progress.

Contact Us
If you have any problem or requirement when using our products, please contact RIGOL Technologies, Inc. or your local distributors, or visit: www.rigol.com.

General Safety Summary

Please review the following safety precautions carefully before putting the instrument into operation to avoid any personal injuries or damages to the instrument and any product connected to it. To prevent potential hazards, please use the instrument only specified by this manual.

Ground The Instrument.
The instrument is grounded through the Protective Earth lead of the power cord. To avoid electric shock, it is essential to connect the earth terminal of the power cord to the Protective Earth terminal before any inputs or outputs.

Observe All Terminal Ratings.
To avoid fire or shock hazards, observe all ratings and markers on the instrument and check your manual for more information about ratings before connecting.

Replace Fuse Properly
Make sure that no overvoltage (such as voltage caused by Thunderbolt) in this product. Otherwise, the operator might be exposed to electric shock.

Do Not Operate Without Covers.
Do not operate the instrument with covers or panels removed.

Avoid Circuit or Wire Exposure.
Do not touch exposed junctions and components when the unit is powered.

Do Not Operate With Suspected Failures.
If you suspect damage occurs to the instrument, have it inspected by qualified service personnel before further operations. Any maintenance, adjustment, or replacement especially to circuits or accessories must be performed by RIGOL- authorized personnel.

Keep good ventilation.
Inadequate ventilation may cause increasing in temperature or damage to the device. So please keep well-ventilated and inspect the intake and fan regularly.

Do Not Operate in Wet Conditions.
To avoid short-circuiting the interior of the device or electric shock, please do not operate in a humid environment.

Do Not Operate in an Explosive Atmosphere.
To avoid damage to the device or personal injuries, it is important to operate the device away from an explosive atmosphere.

Keep Product Surfaces Clean and Dry.
To avoid the influence of dust and/or moisture in the air, please keep the surface of the device clean and dry.

Electrostatic Prevention.
Operate in an electrostatic discharge protective area environment to avoid damages induced by static discharges. Always ground both the internal and external conductors of the cable to release static before connecting.

Safety Terms and Symbols

Terms in this Manual. These terms may appear in this manual:

WARNING
Warning statements indicate the conditions or practices that could result in injury or loss of life.

CAUTION
Caution statements indicate the conditions or practices that could result in damage to this product or other property.

Terms on the Product. These terms may appear on the Product:

• DANGER indicates an injury or hazard may immediately happen.
• WARNING indicates an injury or hazard may be accessible potentially.
• CAUTION indicates a potential damage to the instrument or other property might occur.

Symbols on the Product.
These symbols may appear on the product:

RP1002C Overview

The RP1002C current probe enables a general purpose oscilloscope to display AC and DC current signals up to 100 A Peak (70 A RMS). The RP1002C current probe can also make AC and DC measurements with a multimeter by using the BNC-to- banana plug adapter.

Basic Operation

Before using the current probe, the battery or specified AC power adapter must be installed. For the battery installation instructions, refer to To Install the Battery.

CAUTION
Do not clamp the probe onto circuits with voltages greater than 600 VAC. Otherwise, personal injury or damage to the probe may result.

CAUTION
Always connect the RP1002C current probe output to the instrument before clamping onto the circuit under test.

Connection between the Current Probe and Oscilloscope

1. Set the coupling mode of the oscilloscope to DC and connect the BNC interface of the RP1002C current probe to the oscilloscope input via dual-BNC coaxial cable.

2. Move the Range switch to the 50 mV/A or 500 mV/A position to turn on the RP1002C current probe. At this point, the green battery indicator lights.

3. Use the zero adjustment knob to adjust the probe to the proper DC offset.
   Note: when measuring DC signals, accurate DC value is possible only when the current probe is fixed at a certain position, otherwise, the change of the position of the probe will cause the DC drift. When measuring AC signals, users can move the current probe.

4. Before connecting the current probe to circuit, open the test clamp and clamp it onto the conductor as shown in the figure below.

5. Adjust the probe channel and oscilloscope as necessary to get a clear and stable view of the signal. At this point, you can see both the current components of AC and DC. Set the coupling mode of the oscilloscope to AC to see the current components of AC. The operation method of the current components of AC is the ratio of the voltage amplitude measured through the oscilloscope and the switch range currently selected of the current probe (50 mV/A or 500 mV/A).
   Note: The current drawn by different devices look much different than that of others. While the RMS current can only be used in low-frequency current, the momentary peaks may be quite high. The figure on the next page shows the difference between the line current drawn by a resistive load and a motor controller.

Connection between the Current Probe and Digital Meter
Connect the BNC connector of the RP1002C current probe and the input terminal of the digital meter using the BNC-to-banana plug adapter provided with the accessories. To measure only AC current, select the AC volts of the meter. To measure DC current, select the DC volts of the meter, and adjust the probe output to the proper DC offset. When connecting the current under test, please note the current convention arrow on the test clamp to get the proper polarity reading.

Note: To increase the measurement sensitivity of the RP1002C current probe, loop additional turns of the wire under test through the test clamp. The sensitivity of the RP1002C current probe is multiplied times the number of loops in the test clamp, for example, 50 mV/A X 4 turns = 200 mV/A.

Maintenance

Battery

1. The RP1002C current probe uses a single square 9 V battery. This instrument is a high power product. Please use the specified alkaline battery.
2. As the battery in the RP1002C current probe is drained, significant measurement errors may occur. The green battery indicator will continue to light until a low battery voltage of 6.5 V is reached.

To Install the Battery

1. Remove the test clamp from the circuit.
2. Remove the three screws on the rear cover and take off the rear cover. You can see the location of the battery and remove the battery.
3. While observing polarity, install the new alkaline battery at the corresponding location.
4. Install the rear cover.

AC Power Adapter

1. The specified AC power adapter can be used to avoid measurement error due to poor battery durability.
2. When using an AC power adapter for an extended time, you are recommended to remove the battery. This is because heating will result in battery leakage, and battery electrolytes will rust the circuit board, thus creating major damage. Furthermore, as batteries are high-pollution products, you are recommended to avoid using them as far as possible.

Cleaning

To clean the probe exterior, use a soft cloth dampened in a solution of mild detergent and water. To clean the core, open the test clamp and clean the exposed core surfaces with a cotton swap dampened with isopropyl alcohol (isopropanol). Lubricate the clamp mating surfaces with light oil.
Note: Do not clean with solvents or abrasives. Do not immerse the probe.

Preparation for shipment
A special box is provided to be used for this product, convenient for storage and shipment. Please do not discard it. If the original packaging is unfit for use or not available, use the following packaging guidelines.

1. Use a sturdy shipping carton having inside dimensions at least one inch greater than the probe dimensions.
2. Put the probe into a plastic bag or wrap to protect it from dampness.
3. Place the probe into the box and stabilize it with light packaging material.
4. Seal the carton with shipping tape.

Specifications

These characteristics apply to an adjusted RP1002C current probe installed on an oscilloscope of any brand. The oscilloscope must be warmed up for at least 20 minutes and be in an environment with the temperature at 10℃-30℃ and the humidity at 0-80%.

Electrical Characteristics

(20mA to 14A peak range) 50mV/A: ±4% ±200mA

(200mA to 100A peak range) 50mV/A: ±15% maximum

(100A peak to 140A peak range)

Gain versus frequency,

typical

| See Appendix 1 Gain versus Frequency at 1 A Peak (Typical)
Max. Working Current| See Voltage and Current Ratings
Max. Working Voltage| See Voltage and Current Ratings
Max. Floating Voltage| See Voltage and Current Ratings
Frequency Range| DC to 1MHz (-3dB)
Battery Type and Life, typical| 9V NEDA 1604A, IEC 6LR61

8 hours (1 each)

DC Signal Linearity, typical| See Appendix 3 DC Signal Linearity in 50mV/A Range (Typical)
Phase versus

frequency, typical

| See Appendix 4 Phase versus

Frequency at 1 A Peak (Typical)

Voltage and Current Ratings

Parameter| Max. Working Current

(A)

| Max. Working Voltage

(V)

| Max. Floating Voltage

(V)

---|---|---|---
50mV/A

Range

| 500mV/A

Range

DC| 70 [1]| 7| 600| 600
DC+AC

Peak

| 70 [1]| 7| 600| 600
AC Peak| 70| 7| 600| 600
AC

Peak-peak

| 140| 14| 1200| —-
RMS      CAT

III

| 50| 5| 600| 600
RMS CAT II| 50| 5| 600| 600
RMS CAT I| 50| 5| 600| 600

Note[1]: For frequency derating, please refer to Appendix 2 Maximum Current versus Frequency.

Physical Characteristics

Environmental Characteristics

+40℃ to +50℃, 45% humidity

Pollution Degree| 2

Certifications and Compliances

EC Declaration of Conformity

– Low Voltage

| Low Voltage Directive 73/23/EEC, as amended by 93/68/EEC

Low Voltage Directive 73/23/EEC, as amended by 93/68/EEC

EN 61010-1/A2:1995: Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: General requirements.

EN 61010-2-032:1995: Safety requirements for electrical equipment for measurement, control and laboratory use – Part 2-032: Particular requirements for hand-held current

clamps for electrical measurement and test.

---|---
Additional Compliance| IEC61010-1/A2:1995: Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: General requirements.

IEC61010-2-032:1994: Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 2-032: Particular requirements for hand-held current

clamps for electrical measurement and test.

Installation (Overvoltage) Category| CAT III: Equipment in a fixed industrial location (usually permanently connected) CAT II: Equipment at this level includes appliances, portable tools, and similar products. Equipment is usually

cord-connected.

CAT I: Secondary (signal level) or battery operated circuits of electronic equipment.

---|---
Pollution Degree| A measure of the contaminates that could occur in the environment around and within a product. Products should be used only in the environment for which they are rated.

Pollution Degree 1:

No pollution or only dry, nonconductive pollution occurs. Products in this category are generally encapsulated, hermetically sealed, or located in clean rooms.

Pollution Degree 2:

Normally only dry, nonconductive pollution occurs. Occasionally a temporary conductivity that is caused by condensation must be expected. This location is a typical office/home environment. Temporary condensation occurs only when the product is out of service.

Accessories

1. A Chinese and English User’s Guide
2. A dual-BNC coaxial cable
3. A BNC-to-banana plug adapter
4. An AC power adapter that accords with the standard of the destination country.

Appendix

Appendix 1 Gain versus Frequency at 1 A Peak (Typical)

Appendix 2 Maximum Current versus Frequency

Appendix 3 DC Signal Linearity in 50mV/A Range (Typical)

Appendix 4 Phase versus Frequency at 1 A Peak (Typical)

Documents / Resources

| RIGOL RP1002C Current Probe [pdf] User Guide
RP1002C Current Probe, RP1002C, Current Probe, Probe
---|---

References

• 示波器-数字示波器-信号发生器-频谱分析仪-直流电源-普源精电科技-RIGOL TECHNOLOGIES, Co. LTD

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