Description
ETCR2800KC Split Core Earth Resistance Detector, specializes in online monitoring of the status of the connection of the grounding wire, the resistance of the circuit grounding and the resistance of the metal circuit connection, range: 0.010ohm~100ohm. Online testing, non-contact measurement, grounding wire passing through the detector perforation, definitely does not influence the grounding for lighting effect and normal operation, real-time online test. The detector’s built-in sensor and circuit board, fully sealed, ensure high accuracy, high stability, and high reliability of long-time online monitoring in the field and indoors.
The ETCR2800KC non-contact ground resistance online detector can display the measured data directly through the LCD screen; The detector could set the alarm threshold, with light and sound alarm indication, suitable for standalone installation and without the need to configure the network. Use by RS485 wired communication or GPRS wireless communication data transmission, realize online remote monitoring
Technical Specifications:
-Function: on-line monitoring of the grounding resistance of the return circuit, on-line monitoring of the resistance connection of the metal return circuit, monitoring of the grounding condition.
-CT Structure: Closed Loop
-Power Supply: Detector: 6VDC, 12VDC
-Resistance range: 0.01ohm~100ohm
-Resolution: 0.001ohm
-Accuracy: ± 2% rdg ± 3dgt (20C ± 5C, below 70% RH)
-CT Size: 56mm x 26mm
-Overflow indication: test data> 100ohm, system software or LCD display “OLohm” symbol
-Connection line: 1 piece, 1 meter cable (5 core cable)
-Connection ID
–Red/Brown — Anode Power Supply Inlet
–Black — cathode input power supply
–Blue — RS485 Signal Anode
–Grey — RS485 Signal Cathode
–White — ground wire shielding
– (The input cathode of the power supply can be connected with an analog ground connection via a short-circuit connection)
-Method of communication
– Wired network: RS485 communication protocol (MODBUS compatible)
– Wireless network: RS485 or GPRS communication protocol (MODBUS compatible)
-Network points
– Wired network: 1~250 grounding points, scalable
– Wireless network: 60000 grounding points, can be expanded
-Communication distance
– Wired network: approximately 1500 m, scalable
– Wireless Network: Not Limited
-Alarm indication: detector sound light alarm and LCD display
-Alarm Settings: System Software Settings
-Data display: LCD display
-LCD screen size: 47mm x 28.5mm
-Dimensions: Detector: 124mm x 118mm x 76mm
-Weight: Detector: 1 KG
-Working temperature and humidity: -20C~55C; 20% RH ~ 90% RH
-Humidor error: within 5%
-Shift: automatic change
-Interference current of the grounding cable: should be avoided-External
magnetic field: <40A/m-External
electric field: <1 V/m-Individual
measurement time: about 0.5 seconds-Working
current: Detector: 50mA Max. (GPRS: 12VDC 150mA Max)
-Protection level: IP54
