ETCR2800C Multifunction Non-Contact Grounding Resistance Online Detector-ETCR

ETCR2800C Multifunction Non-Contact Grounding Resistance Online Detector

Product Main Function

1. On - line monitoring the earth resistance of grounding system
2. Measure Range: 0.010Ω~200Ω
3. With GPRS communication and RS485 interface
4. 47mm×28.5mm LCD
5. Network system can be built to realize real-time detection and remote monitoring
6. EX-Mark: ExiaⅡBT3Ga
7. Explosion Proof Certification: CE18.2332X

ETCR2800C Non-Contact Grounding resistance Online Detector used for on-line monitoring the earthing resistance of earthing system, measure range: 0.010Ω~200ΩOn-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

ETCR2800B、C Catalog