ETCR3900 Lightning Protection Standard Resistor

Main Functions

Used for calibration of earth resistance tester, equipotential testers and other instruments.
Gear & measurement range: 8 gears: 1mΩ, 10mΩ, 100mΩ, 1Ω, 10Ω, 100Ω, 1kΩ, 100kΩ

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Product Introduction
Technical Parameter
Model comparison
Data download

Product Introduction

ETCR3900 Lightning Protection Standard Resistor is consisted of 9 pcs 1/2W high-precision wire-wound resistance. When calibrating the resistance, it can be directly tested by shifting gears instead replacing the test wires, stable performance, sturdy structure, calibration testing is particularly convenient. The maximum accuracy of high-precision wire-wound resistance is 0.05%, its resistance value including 1mΩ, 10mΩ, 100mΩ, 1Ω, 10Ω, 100Ω, 1kΩ, 100kΩ. The tester fully meets the range of 10-3-105 Ω specified in the Management Measures for Qualification of Lightning Protection Device Testing issued by the National Meteorological Administration Order No. 38.
1. Made with high-precision wire wound resistors, the performance is stable and the structure is sturdy, making calibration and testing particularly convenient.
2. It fully meets the range of 10-3-105 Ω specified in the Management Measures for Qualification of Lightning Protection Device Testing issued by the National Meteorological Administration Order No. 38.
3. 8 gears: 1m Ω, 10m Ω, 100m Ω, 1 Ω, 10 Ω, 100 Ω, 1k Ω, 100k Ω

Technical Parameter

Wiring method	Four-wire method
Gear	8 gears，1mΩ, 10mΩ, 100mΩ, 1Ω, 10Ω, 100Ω, 1kΩ, 100kΩ
Range & accuracy	0.001Ω; 2%
	0.01Ω; 0.5%
	0.1Ω; 0.2%
	1.0Ω; 0.2%
	10Ω; 0.05%
	100Ω; 0.05%
	1kΩ; 0.05%
	10kΩ; 0.05%
	100kΩ; 0.05%
Power	1/2W
Temperature coefficient	±25ppm
Dimensions	173mmX125mmX70mm
Weight	Host: about 345g; total weight: about 1.32kg (include accessories)
Test line	Red 0.5mX2 PCS, black 0.5mX2 PCS
Insulation resistance	Above 10MW (500V between the circuit and the housing)
Withstand Voltage	AC3700V/rms (between circuit and housing)
Suitable Safety Standard	IEC61010-1, CAT Ⅲ600V, pollution level, JJG166-1993 {DC resistor verification procedures}
Working temperature & humidity	-10℃～40℃; below 70%RH
Storage temperature & humidity	-20℃～60℃; below 80%RH

Model comparison

Data download

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Guangdong ETCR Electronic Technology CO.,Ltd
Our corporate focuses on the research, development, and production of intelligent power testing and control instruments; and also provides OEM service.

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(86-757)66860936

(+86)13802922567

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