ETCR2800T Stainless Steel Earth Resistance Online Detector -etcr

ETCR2800T Stainless Steel Earth Resistance Online Detector

  Product Main Function

1.Suitable for secondary development, online monitoring of circuit grounding resistance and metal circuit bonding resistance, grounding condition monitoring.

2. Measurement Range: Range:0.01Ω~200Ω;

3. Resolution:0.001Ω.

4. Output Range: 0.00Ω~200Ω 

5. Accuracy: ±2%rdg±3dgt (20℃±5℃,below 70%RH). 

6. Detector Size: 160mm×90mm×125mm ;

7. Detector Perforation Size: 53mm×20mm;

8. Explosion-Proof Mark: Ex iaⅡBT3Ga,(explosion-proof certification:CE18.2332X). 

9. Protection Level: IP65

Detector is installed at outdoor and circuit boards need to be placed in other protective boxes

  ETCR2800T  Stainless Steel Earth Resistance Online Detector is high-tech product that our company has devoted to "grounding resistance detection technology research" for more than ten years, specialize for online monitoring grounding down lead connection status, circuit grounding resistance and metal circuit connection resistance. On-line testing, non-contact measurement, grounding wire pass through the perforation of the detector, definitely will not influence grounding effective for lightening and normal operation, no need the self-inspection, real time on-line testing. Provide RS485 wire communication (support MODBUS-RTU communication protocol) or GPRS wireless communication data transmission, The monitor is composed of sensor and PCB module, which is suitable for user secondary development integration. Among them, ETCR2800T is specially designed for outdoor installation, the sensor housing is made of 304 stainless steel, sealed with internal resin, and has a solid structure. It is anti-explosion and anti-impact, high and low temperature resistant, waterproof and dustproof, all-weather, especially suitable for installation to use of outdoor, oil depot and gas station.

 Function  Loop circuit grounding resistance on-line monitoring, metal return circuit resistance connection online monitoring, grounding condition monitoring. anti-theft monitoring of grounding wires and metal cables
 Power Supply  Detector:6VDC~9VDC,50mA Max(external power supply).
 Resistance Range  0.01Ω~200Ω
 Resolution  0.001Ω
 Accuracy  ±2%rdg±3dgt(20℃±5℃,below 70%RH)
 PCB Size  122mm×56mm×20mm
 Sensor Size  160mm×90mm×125mm
 Sensor Perforation Size  53mm×20mm
 Sensor Weight  1500g
 Overflow Indication  Test data>200Ω, communication send “OLΩ” command
 PCB Interface  J1:Signal output, power input interface       
J2:Sensor and PCB interface
 Symbol J1 P+:Power input with positive R+:Signal output with positive
P-:Power input ground     R-: Signal output with negative
GND:Signal ground, short connect with power input ground (P-)
 Symbol J2 I+、I-Current coil interface U+、U-Voltage coil interface
GND:Common ground
 Connect Wire 1pcs ,1 meter length(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  RS485 communication protocol(support MODBUS)
GPRS communication (optional)
 Working Temperature And Humidity  -20℃~55℃; 20%RH~90%RH
 Shift  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  50mA Max.
 Installation  The ground wire goes through the center hole of the sensor
 Installation  Demand  PCB should install into other protective case

Model Detector Perforation Size Function
Built-in Earth Resistance Online Detector 66mm×36mm Sensors and circuit board modules need to be installed in other cases.
Stainless Steel Earth Resistance Online Detector 53mm×20mm The sensor housing is made of 304 stainless steel, which is suitable for outdoor installation. Circuit board modules need to be installed in other chassis。

Package  Outer Package  Carton
 Inner Package No
 Accessory   Detector  1 PCS
Connection line  1 PCS
 Manual  1 PCS
 Certificate  1 PCS
 Warranty Card  1 PCS