1.Brief Introduction:   

            1.ETCR2800KC Split-core Ground Resistnace Detector specifically designed for online monitoring of the connection status of the ground lead-down wire, Loop ground resistance and the connection resistance of the metal circuit, installation without disconnecting the ground lead-line, convenient and quick.  On-line test, Non-contact measurement,ground wire through the detector directly,Without self-test, real-time detection, using RS232, RS485 wired communication or GSM wireless communication data transmission, remote online monitoring. Detector built-in sensor and PCB, completely enclosed, waterproof and dustproof.Ensure high-accuracy, high stability and high reliability of long time on-line monitoring outdoors, underground mine and indoors.    

         2.ETCR2800KC Split-core Ground Resistnace Detector applies to electric transmission line pole ground connection, underground mine device ground connection, Meteorological lightning protection ground connection, petrochemical engineering ground connection, communication ground connection, rail facility ground connection, building the warehouse ground connection, electrical equipment ground connection etc..    

         3.ETCR2800KC Split-core Ground Resistnace Detector need to use in wire network system or wireless network system.Wired network system through RS232, RS485 communication protocol to transfer data, by the main communication device (concentrator), monitoring software, power adapter, computer and other components, suitable for short-distance or underground mine ground resistance monitoring.    

         4.Wireless network system through RS232, RS485, GSM / GPRS communication protocol to transmit data from the master (concentrator), GSM / GPRS transceiver module, SIM communication card, monitoring software, power adapter, computer and other components for long-distance or Mine ground resistance monitoring.  Wired network system is suitable for monitoring within 1,500 meters distance, wireless network system is not subject to distance restrictions.    

         5.The monitoring software can display the measured grounding resistance from time to time. You can set the monitoring recording time automatically. The interval recording time is 1 to 200 hours. The recorded data is automatically stored for historical inquiry. Analyze the change of grounding resistance of monitoring points.    

         6.ETCR2800KC has passed the explosion-proof certification to meet GB3836-2000 "electrical equipment for explosive gas atmospheres" requirements. Its explosion-proof mark Ex ia Ⅱ B T3 Ga. Explosion-proof certification number: CE13.2262X. It can be applied to the corresponding flammable and explosive environment.    

         2.Specification:    

Power Supply

        DC 6V~9V,50mA Max.(External power supply)

                      Clamp

        56mm×26mm(Split-core)

                      LCD

        47mm×28.5mm

                      Range

        0.010Ω~50.0Ω

                      Resolution

        0.001Ω

                      Accuracy

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

                      Auto Power-off

        NO

                      Power consumption

        ≤50mA

                      Working environment

        -20℃~55℃;20%rh~90%rh

                      Store the environment

        -20℃~60℃;below 90%rh

                      Explosion mark

        Ex ia ⅡB T3 Ga

                      Level Of Protection

        IP56

                      Communication method

        Wired network:RS232,RS485,RS485-MODBUS-RTU  communication protocol

                      Wireless network:RS232,RS485,RS485-MODBUS-RTU,GSM  communication protocol (Optional)

                      Communication distance

        Wired network: about 1,500 meters, scalable

                      Wireless network: There is a cell phone signal place

                      Network points

        Wireless network:1~255 grounding point,Scalable

                      Wireless network: 1~100 grounding point,Scalable

                      Overflow instructions

        When the displayed value is greater than the maximum range, the system software displays the "OL Ω" symbol

                      Data Display

        System software display

                      Alarm Indication

        System software alarm indication

                      Alarm Setting

        System software setting

                      Single measurement time

        0.5 Second

Shift

        Automatic shift

                      External Magnetic Field

        <40A/m

                      External Electric Field

        <1V/m

                      GND Interference Current

        avoid

                      Protection degree

        PCB,Sensor completely seal

                      Power and communication cable

        1M/PCS(5 core wire)

                      Mounting screw hole size

        Φ8mm

                      Installation

        Grounding cable through Detector centre bore

                      Installation Requirements

        Avoid rain and water logging

                      Connection Identifier

        Red/brown---power supply input anode;

                      Black--- Power input;

                      Blue---RS485 Positive signal;

                      Grey---RS485 Negative signal

                      White--- analog grounding (power supply input cathode can connects with analog grounding by short circuit connection)

                      Weight

        1000g

                      Dimensions

        119mm×118mm×76mm