ETCR2900B-GPRS Earth Resistance Online Detector 0.01O~2000O GPRS Communication

ETCR2900B-GPRS Earth Resistance Online Detector 0.01O~2000O GPRS Communication
Notice:
  The standard package don't include batteries.Because,the international air shipping forbid to ship liquid,powder and batteries,we can not put them in the package box.Hope you can understand buy them in your local store or supermarket.
At the same time, please forgive us that we are unable to provide the English user manual. If you need it, please contact the customer service after purchase.
Thanks for your support!
Product Main Function
1. Online monitoring of grounding resistance, grounding voltage.
2. Ground resistance :0.01O~2000O
3. Communication method :RS485,GPRS
4.Monitoring Interval  Time :Setting range of automatic monitoring interval time :1-999 h
5. Measurement rate:over 10000 times
6. LCD Size :128mm×75mm
ETCR2900B Earth Resistance Online Detector is 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 method to test the grounding resistance. Adopt average value rectification method to test grounding voltage, online detection, real-time monitoring. User can select RS232 or RS485 communication, according the protocol MODBUS to secondary development, build network, realize remote multipoint online monitoring etc.
ETCR2900B Earth Resistance Online Detector displayed by super large LCD, very clear and obvious. The alarm critical value can be set via the button, and with the sound and light alarm indication. Ensure the high accuracy, high stability and high reliability of real-time online monitoring of grounding resistance value in various place.
ETCR2900B Earth Resistance Online Detector Tester suitable for transmission line tower grounding, underground mine equipment grounding , weather lightning protection grounding, petrochemical grounding ,communication base station grounding, power substation grounding , railway grounding , building warehouse grounding , electrical equipment grounding, etc.
Technical Parameter
  Range Accuracy Resolution
Ground Resistance 0.01O~20O ±2%rdg±3dgt  (auxiliary ground resistance100O±5%, voltage to ground<10V) 0.01O
0.1O~200O 0.1O
1O~2000O 1O
 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
 Package  Outer package  Carton
 Inner package  None
 Accessory  Meter  1 PCS
 GPRS communication module + external antenna  1PCS
 9-pin Terminal Block  1 PCS
 Manual/Warranty Card/Certificate  1 PCS