ETCR ETCR2100A+ - User Manual

Questions and Answers

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Haley EricksonAug 9, 2025
What to do if my ETCR Test Equipment indicates an ERROR?
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  James ChenAug 9, 2025
  If your ETCR Test Equipment shows 'Err', large error results, or unstable readings, it could be due to several reasons. First, try replacing the batteries. If that doesn't solve the problem, check the jaw's contact surface for dust or oil and clean it. Another potential cause is poor jaw closure; try triggering the clamp multiple times and then rebooting the device. In some cases, the error may indicate a defective circuit component, and the PCB should be replaced. Finally, ensure you are following the correct measurement steps as outlined in the manual.
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Mr. Adam WileyAug 15, 2025
Why won't my ETCR ETCR2100A+ button on?
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  Craig CortezAug 15, 2025
  If your ETCR Test Equipment isn't powering on, start by checking the batteries. Ensure they are correctly installed with the right polarity and are not depleted. If the batteries are fine, inspect the battery contacts for any issues and replace them if needed. Confirm you're using the correct battery type. Also, test the battery harness for continuity and replace it if there's a break. Check the power button itself and re-assemble it if it's loose. Ensure the power plug has good contact, re-plugging or replacing it if necessary. In some instances, a defective circuit component on the PCB may be the cause, particularly if the current consumption is high; consider replacing the PCB.
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Kaitlin JohnsonAug 21, 2025
Why is my ETCR ETCR2100A+ incapable of measuring resistance?
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  bchandlerAug 21, 2025
  If your ETCR Test Equipment can't measure resistance, the battery might be low; replace it if the 'Low battery' indicator appears on the LCD. Ensure the instrument performs self-calibration before the test, following the manual to reboot and measure only after calibration completes. Check for the 'jaw-open' symbol on the LCD, which indicates poor jaw closure; trigger the clamp several times and reboot. Also, verify that the jaw's contact surface is clean from dust or oil. If these steps don't resolve the issue, a circuit component may be defective; in this case, consider replacing the PCB and readjusting the device.
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Jessica BrownAug 27, 2025
What to do if my ETCR ETCR2100A+ is incapable to hold reading?
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  Joseph ChavezAug 27, 2025
  If your ETCR Test Equipment isn't holding readings, check if the HOLD button has come loose and re-assemble it. If the issue persists, the problem might be a defect of circuit component. In this case, replace the PCB.
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Morgan CallahanSep 1, 2025
Why is my ETCR ETCR2100A+ LCD Indication showing errors?
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  Bryan ReedSep 1, 2025
  If your ETCR Test Equipment's LCD is displaying errors such as missing segments, incorrect arithmetic points, or wrong units, it could be due to a few reasons. First, check the LCD connection wire for poor contact and try re-plugging or replacing the plug. If the problem continues, the LCD itself might be defective and need replacement. Also, ensure that the batteries have sufficient capacity and replace them if necessary. As a last resort, a defective circuit component could be the cause, requiring replacement of the PCB.

Summary

User Attention and Safety Warnings

General Safety and Usage Cautions

Covers essential safety precautions and operational guidelines for using the meter.

Technical Specifications

Measurement Ranges and Accuracy

Details the resistance and current measurement ranges and their accuracy.

Liquid Crystal Display (LCD)

Operating Methods

Meter Boot Up Procedure

Meter Shutdown Procedure

Performing Resistance Measurement

Performing Current Measurement

Measurement Principles

Resistance Measurement Principle

Earth Resistance Measurement Methods

Multi-Point Grounding System Measurement

Limited Point Grounding System Measurement

Single-Point Grounding System Measurement

Troubleshooting Guide

ETCR ETCR2100A+ Specifications

General

Model	ETCR2100A+
AC Current Measurement	Yes
DC Current Measurement	No
DC Voltage Measurement	No
Resistance Measurement	Yes
Display	LCD
Ground Resistance Range	0.01Ω ~ 1200Ω
Data Storage	99 sets
Storage Temperature	-20°C ~ 60°C
Type	Clamp Ground Resistance Tester
Resolution (Current)	0.1mA
Alarm Threshold Setting Range	1Ω ~ 199Ω
Power Supply	4 x 1.5V AA batteries
Clamp Jaw Size	55mm x 32mm
Operating Temperature	-10°C~50°C
Resolution	0.001Ω