Built in Grounding Resistance Tester Online Earth Resistance Detector 0.010~200Ω

Built in Grounding Resistance Tester Online Earth Resistance Detector 0.010~200ΩInstruction: ETCR2800N Built-in Grounding resistance Online Detector used for on-line monitoring the earthing resistance of earthing system and connection resistance of metal loop , measure range : 0.010Ω~200Ω , also can be used for grounding wire , metal cable anti-theft monitoring . The detector adopts non-contact measurement technology , and the grounding down lead goes through the perforation of the detector directly , which will not affect the lightning protection grounding effect and the normal operation of the facilities. ETCR2800N Built-in Grounding resistance Online Detector equip with RS485 ( support MODBUS-STU communication protocol) or GRPS interface , it`s sensor and PCB can be built into the inside case of orther equipment, convenient the secondary development and integration by users . The detector can be installed individually , and also can build wire or wireless network system for use. Product Main Function 1. On - line monitoring the earth resistance of grounding system 2. Measure Range: 0.010Ω~200Ω 3. Equip with RS485( support MODBUS-RTU communication protocol) or GPRS interface 4. can be built into inside case of other equipment ,convenient the secondary development and integration by users 5. Network system can be built to realize real-time detection and remote monitoring Specification: Power Supply DC 6V～9V，50mA Max.（External power supply） Grounding Cable Perforation Size 60mm×30mm closed mode (60mm×4mm steel flat or external diameterФ30mm electric cable) LCD Size Optional Range 0.01Ω～200Ω 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 Environment -20℃~60℃；below 90%rh Communication Method RS485(MODBUS-RTU communication protocol) or GPRS communication (Optional) Overflow Indication Measure value is larger than the maximum range, the system software will display "OL Ω" symbol Data Display LCD display(Optional) Alarm Indication With LCD: Audible and visual alarm Without LCD: Without alarm or Factory set fixed resistance value to alarm Alarm Setting With LCD: setting by user Without LCD: can not setting by user Single Measurement Time 0.5 Second/times Shift Automatic shift External Magnetic Field ＜40A/m External Electric Field ＜1V/m GND Interference Current avoid Protection Level 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 Requirement Avoid rain and water logging Connection Identifier Red/brown---power supply input anode; Black--- Power input ground; Blue---RS485 Positive signal; Grey---RS485 Negative signal White--- shield ground (power input ground can connects with Shield ground by short circuit) Weight 680g Sensor Size 110mm×80mm×55mm PCB Size 166mm×56mm×20mm Packing: 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