Digital Earth Resistance Tester

ETCR3000 Digital Earth Resistance Tester is specially designed and manufactured for field measurement, adopting the latest digit Ⅰ. Introduction

         ETCR3000 Digital Earth Resistance Tester is specially designed and manufactured for field measurement, adopting the latest digital and micro-processing technology, 3-pole or 2-pole method for earth resistance measurement, with a unique function of wire resistance verification, anti-interference capability and the ability to adapt to the environment, to ensure high precision, high stability and reliability for prolonged measure, which is widely used in electric power, telecommunications, meteorology, oil field, construction, lightning protection, industrial electrical equipment and other earth ground resistance measurement.

     ETCR3000 Digital Earth Resistance Tester has a unique function of wire resistance verification,more accurate on measuring on-site low value earth ground resistance, which can avoid error caused by resistance change due to prolonged usage of testing wire; avoid error caused by testing wire that is failed to be fully inserted into tester interface or by poor contact; avoid error caused by users’ replacing or lengthening testing wires.       Ⅱ. Technical Specifications

1.Function   Earth resistance measurement, Earth voltage measurement, Low resistance measurement.

2.Power Supply   DC 9V (Zi-Mn dry battery R14S 1.5V 6 PCS, continuous standby for 300 hours ).

3.Measuring Mode   Precise 3-pole measurement, simple 2-pole measuremen.

4.Measuring Method  Earth ground resistance--constant current change-pole method, measurement current 3mA Max,820Hz

                                        Voltage to ground--average value rectification.

5.Data Mode     Average value, maximum, minimum.

6.Wire Resistance Verification   Avoid error caused by testing wire such as failed to be fully inserted into tester interface or by 

               poor contact or by user’ s replacing or lengthening testing wires, making it more accurate for earth ground resistance

               measurement.

7.Display Mode 4-digital super-large LCD display, blue screen backlight,

8.Measuring Indication   During measurement, LED flash indicator, LCD count down display.

9. Earth Ground Resistance  Range--0.01Ω~2000Ω    Resolution--0.01Ω    Accuracy---±1%rdg±3dgt

10.Earth Ground Voltage  Range--0V~600V AC   Resolution--1V   Accuracy--±1%rdg±3dgt

11.Tester Dimension  LWH--215mm×190mm×95mm

12.Testing Wires    Three wires---each for Red 20m, Yellow 10m, and Green 5m

13.Simple Testing Wire  2 wires--each for Red 1.5m and Green 1.5m

14.Auxiliary Earthing Rod  2 PCS--Φ10mm×150mm

15 Circuit Voltage   Measuring voltage to ground---measuring below AC 600V

16.with RS232 Interface to upload the testing data, with the fuction of Data Storage,Data Hold, Overflow Display,Alarm Function.

17. Electromagnetic Features  IEC61010-4-3,Wireless frequency electromagnetic field≤1V/m

18.Protection Type  IEC61010-1,IEC1010-2-31,IEC61557-1,5,IEC60529(IP54),CAT Ⅲ 300V ,Pollution etc.

19.Accessories Tester---1PC   Earthing Rod--2PCS   Testing Wire--3PCS   Simple testing wire---2PCS   RS232 Com-cable---1PC   Software disk---1PC   Tester bag---1PC

 

Digital Earth Resistance Tester