ETCR2800B Non-Contact Grounding Resistance Online Tester 0.01~200O

ETCR2800B Non-Contact Grounding Resistance Online Detector

Product Main Function
1. On - line monitoring the earth resistance of grounding system
2. Measure Range: 0.010O~200O
3. With GPRS communication and RS485 interface
4. Network system can be built to realize real-time detection and remote monitoring
5. EX-Mark: Exia?BT3Ga
6. Explosion Proof Certification: CE18.2332X

ETCR2800B Non-Contact Grounding Resistance Online Detector used for on-line monitoring the earthing resistance of earthing system, measure range: 0.010O~200O. On-line testing, non-contact measurement, grounding wire pass through the perforation of the detector, definitely not influence grounding for lightening effect and normal operation, real time on-line testing. Use by RS485 wire communication or GPRS wireless communication data transmission, realize remote online monitoring .Detector built-in sensor and circuit board, completely sealed, ensure high-accuracy, high stability and high reliability of long time on-line monitoring at field and indoors.


ETCR2800B Non-Contact Grounding resistance Online Detector, equipped with GPRS communication and RS485 interface, can build a network system to realize real-time detection and remote monitoring.



Function Return circuit grounding resistance on-line monitoring, metal return circuit resistance connection online monitoring, grounding condition monitoring.
CT structure Closed loop(B\C Model);Spilt core(KB\KC Model)
Power Supply Detector:6VDC~12VDC,50mA Max(GPRS 12VDC 150mA Max). (Ui:6V;Ii:50mA;Ci:0µF;Li:0mH;Pi:0.1W)(User supply),Instrument and safety barrier matching relation:Uo=Ui,Io=Ii,Po=Pi,Co=Ci,Lo=Li?
Resistance Range 0.01O~200O
Resolution 0.001O
Accuracy ±2%rdg±3dgt(20?±5?,below 70%RH)
CT Size 60mmx28mm
Overflow Indication None
Connection line 1pcs ,1 meter cord(5 core wire)
Connection Identifier Red/brown---power supply input anode;
Black--- power supply input cathode;
Blue---RS485 signal anode;
Grey---RS485 signal cathode;
White--- grounding wire shield
(power supply input cathode can connects with analog grounding by short circuit connection)
Communication Method Wired network: RS485 communication protocol(support MODBUS)
Wireless network: RS485 or GPRS communication protocol(support MODBUS)
Network Points Wired network: 1 ~ 250 grounding points, scalable
Wireless network: 60000 grounding points, can be expanded
Communication distance Wired network: about 1500m,scalable
Wireless network: not limited
Alarm Indication the detector sound-light alarm
Alarm Setting System Software Settings
Data Display None
Dimensions Detector: 132mm × 130mm × 76mm
Weight Detector: 1KG
Working Temperature And Humidity -20?~55?;20%RH~90%RH
Humidors Error Within 5%
S hift Automatic shift
Grounding Lead Interference Current Should be avoid
External Magnetic Field <40A/m
External Electric Field <1V/m
Single Measurement time About 0.5 second
Working current Detector: 50mA Max.(GPRS: 12VDC 150mA Max)
Explosion-proof mark Ex ia ?B T3 Ga
Explosion-proof Certification CE18.2332X.
Protection Level IP54
Power Supply Mode External power supply (Equipped by user)
Battery does not include



Package Outer package Carton
Inner package None
Accessory Meter 1 pcs
Power and Communication Cable 1 pcs
Manual 1 pcs
Certificate 1 pcs
Warranty Card 1 pcs