ETCR ETCR3740 等電位接続抵抗オンラインテスター (1000Ω; 1A MAX; RS485, 4G)

Measurement Range & Accuracy

Gear/Accuracy/Solution

1000mΩ/±2%±3dgt/1mΩ

10Ω/±2%±3dgt/0.01Ω

100Ω/±2%±3dgt/0.1Ω

1000Ω/±2%±3dgt/1Ω

Technical Specifications

Power Supply: DC 12V / 2A (external provide)

Display Mode: 128mm×75mm; display area: 124mm×67mm

Test Current: 1.2A MAX

Measurement Method: Precision four-wire method, 2 A/D simultaneous detection

Measurement Range: 1mΩ~1000Ω

Test Interface: C1 current positive, C2 current negative, P1 voltage positive, P2 voltage negative

Test Time: 30 seconds/time

Data Storage: Yes, power down or replace the battery will not lose the data(200 groups)

Alarm Setting: Alarm threshold setting range: 0Ω~999Ω, 00Ω does not start the alarm function

Test Indication: TESTING light flickers during the test

Communication Mode: RS485communication, 4G communication(optional)

Host Size: 190mm×117mm×54mm

Weight: Tester: about 450g

Line Voltage: Should be avoided (the line cannot be measured with electricity, which may damage the instrument)

Overflow Display: Overrange overflow function: "OL" symbol display

Withstand Voltage: AC 3700V/rms(Between the shell and the screw)

Suitable Safety Standard: IEC61010-1, CAT Ⅲ 600V, pollution level 2, JJG724-1991 "DC Digital Ohmmeter Verification Procedures", JJG166-1993 "DC Resistor Verification Procedures", "DL/T967-2005 Loop Resistance tester and DC Resistance Rapid tester Verification Procedures"

Working Temperature & Humidity: -10℃~40℃; below 80%RH

Storage Temperature & Humidity: -10℃~60℃; below 70%RH