Product Main Function
1. On - line monitoring the earth resistance of grounding system
ETCR2800C Non-Contact Grounding resistance Online Detector used for on-line monitoring the earthing resistance of earthing system, measure range: 0.010Ω~200Ω. 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.
ETCR2800C Non-contact Earth Resistance Online Detector, can display the measured data directly through the LCD; the detector could set alarm threshold, with sound and light alarm indication, suitable for independent installation and use no need to set up the network.
Function | Return circuit grounding resistance on-line monitoring, metal return circuit resistance connection online monitoring, grounding condition monitoring. |
CT structure | Closed loop |
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 | 0.01Ω~200Ω |
Resolution | 0.001Ω |
Accuracy | ±2%rdg±3dgt(20℃±5℃,below 70%RH) |
CT Size | 60mmx28mm |
Overflow Indication | test data>200Ω, system software or LCD display “OLΩ” symbol; |
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 and LCD display |
Alarm Setting | System Software Settings |
Data Display | LCD display |
Dimensions | Detector: 132mm × 130mm × 76mm |
Weight | Detector: 1KG |
Working Temperature And Humidity | -20℃~55℃;20%RH~90%RH |
Humidors Error | Within 5% |
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 | Detector: 50mA Max.(GPRS: 12VDC 150mA Max) |
Explosion-proof mark | Ex ia ⅡB T3 Ga |
Explosion-proof Certification | CE18.2332X. |
Protection Level | IP54 |
Power Supply Mode | External power supply (Equipped by user) |
Model | CT Structure | Range | Difference |
ETCR2800B | Close loop | 0.010Ω~200Ω | NO LCD and Indicator light, need to build Internet |
ETCR2800C |
Close loop |
0.010Ω~200Ω | With LCD, Alarm Setting,Sound and light alarm indication |
ETCR2800KB | Split-core | 0.010Ω~100Ω | No need to disconnect the grounding wire in installing,detector with sound and light alarm indication |
ETCR2800KC | Split-core | 0.010Ω~100Ω | No need to disconnect the grounding wire in installing, detector with LCD, Alarm Setting, sound and light alarm indication |
ETCR2800N |
Close loop and built-in type |
0.010Ω~200Ω | No shell, suitable for secondary development |
ETCR2900 | None | 0.01Ω~2000Ω | Need ground auxiliary pile,communicate with the computer directly, dector with LCD, alarm setting,sound and light alarm indication |
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 |
ETCR2800C Non-Contact Grounding resistance Online Detector used for on-line monitoring the earthing resistance of earthing system, measure range: 0.010Ω~200Ω. 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.
ETCR2800C Non-contact Earth Resistance Online Detector, can display the measured data directly through the LCD; the detector could set alarm threshold, with sound and light alarm indication, suitable for independent installation and use no need to set up the network.
Function | Return circuit grounding resistance on-line monitoring, metal return circuit resistance connection online monitoring, grounding condition monitoring. |
CT structure | Closed loop |
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 | 0.01Ω~200Ω |
Resolution | 0.001Ω |
Accuracy | ±2%rdg±3dgt(20℃±5℃,below 70%RH) |
CT Size | 60mmx28mm |
Overflow Indication | test data>200Ω, system software or LCD display “OLΩ” symbol; |
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 and LCD display |
Alarm Setting | System Software Settings |
Data Display | LCD display |
Dimensions | Detector: 132mm × 130mm × 76mm |
Weight | Detector: 1KG |
Working Temperature And Humidity | -20℃~55℃;20%RH~90%RH |
Humidors Error | Within 5% |
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 | Detector: 50mA Max.(GPRS: 12VDC 150mA Max) |
Explosion-proof mark | Ex ia ⅡB T3 Ga |
Explosion-proof Certification | CE18.2332X. |
Protection Level | IP54 |
Power Supply Mode | External power supply (Equipped by user) |
Model | CT Structure | Range | Difference |
ETCR2800B | Close loop | 0.010Ω~200Ω | NO LCD and Indicator light, need to build Internet |
ETCR2800C |
Close loop |
0.010Ω~200Ω | With LCD, Alarm Setting,Sound and light alarm indication |
ETCR2800KB | Split-core | 0.010Ω~100Ω | No need to disconnect the grounding wire in installing,detector with sound and light alarm indication |
ETCR2800KC | Split-core | 0.010Ω~100Ω | No need to disconnect the grounding wire in installing, detector with LCD, Alarm Setting, sound and light alarm indication |
ETCR2800N |
Close loop and built-in type |
0.010Ω~200Ω | No shell, suitable for secondary development |
ETCR2900 | None | 0.01Ω~2000Ω | Need ground auxiliary pile,communicate with the computer directly, dector with LCD, alarm setting,sound and light alarm indication |
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 |