ETCR2900B Grounding Earth Resistance Tester with LCD Screen Earth Ground Tester

ETCR2900B Earth Resistance Online Detector is a high-tech product that our company has devoted to “grounding resistance detection technology research” for more than ten years, Using precision 3-wire or simple 2-wire measurement methods to test the grounding resistance. Adopt the average value rectification method to test grounding voltage, online detection, and real-time monitoring. Users can select RS232 or RS485 communication, according to the protocol MODBUS for secondary development, build network, realize remote multipoint online monitoring, etc.

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Feature of ETCR2900B

  • Online monitoring of grounding resistance, grounding voltage.
  • Ground resistance ：0.01Ω～2000Ω
  •  Communication method： RS485, GPRS
  • Monitoring Interval  Time: Setting range of automatic monitoring interval time:1-999 h
  • Measurement rate： over 10000 times
  • LCD Size：128mm×75mm

Specification of ETCR2900B

Range Accuracy Resolution
Ground Resistance 0.01Ω～20Ω ±2%rdg±3dgt  (auxiliary ground resistance100Ω±5%， voltage to ground＜10V) 0.01Ω
0.1Ω～200Ω 0.1Ω
1Ω～2000Ω 1Ω
 Ground Voltage  0～600V AC ±2%rdg±3dgt 1V
 Measure Mode  Precise 3-wire measurement ,simple 2-wire measurement
 Measure Method  Ground resistance：rated current change-pole method，measured current11mA Max，128Hz；

voltage to ground： average value ectification method.
 Power Supply  Standard：12V±1VDC、400mA Max（provided externally）
 Weight  Detector:380g
 Dimension  130mm×90mm×54mm
 LCD Size  47mm×28.5mm
 Measurement Time  Voltage to ground：about 2 times/second ; ground resistance : about 30 seconds/time
 Measurement Rate  Over 10000  times
 Monitoring Interval  Time  Setting range of automatic monitoring interval time :1-999 h
 Instrument Interface  Pluggable  terminal blocks: 9 pin connector
Communication  Method  RS485,GPRS
Data Storage  99 groups，flash display “99”  symbol indicate storage is full
Data Access  Data read function :“READ” symbol display
Overflow Display  Exceed measurement range overflow function :”OL” symbol display
Alarm  Audible and visible alarm
Power Supply Voltage  When power supply voltage decreases to about 10V , power supply low symbol will display, and remind to replace  the power.
Overload Protection  Measurement ground resistance: E-P, E-C between each interfaces AC 280V/3 seconds
Electromagnetism  IEC61010-4-3,Wireless frequency electromagnetic field≤1V / m
Line Voltage  Measuring the voltage to ground: Below AC 600V
Accessories  Detector: 1PCS;GPRS Communication module+external antenna：1set;9P terminal block

 

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