Non Contact Earth Ground Resistance Detector Online Earth Resistance Tester 200Ω

Description

Non Contact Earth Ground Resistance Detector Online Earth Resistance Tester 200Ω
Instruction:
ETCR2800C Non-Contact Grounding resistance Online Detector
used for on-line monitoring the earthing resistance of earthing system, measure range: 0.010Ω~200Ω. 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.The detector has strong structure, rain and dust proof, and can be installed outdoors.Ensure the high stability and reliability of outdoor, mine and indoor on-line inspection for a long time.
ETCR2800C Non-contact Earth Resistance Online Detector
, equipped with display screen and alarm lamp, can observe the value of earth resistance at any time , and can set alarm critical value ,  when the value of earth resistance is larger than the setting critical value , alarm lamp will flashes , it`s suitable for independent installation and use no need to build network. the detector  equipped with GPRS communication and RS485 interface , can build a network system to realize real-time detection and remote monitoring.
Product Main Fun
ction
1. On - line monitoring the earth resistance of grounding system
2. Measure Range: 0.010Ω~200Ω
3. 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
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
47mm×28.5mm LCD
Range
0.010Ω
～
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 the environment
-20℃~60℃
；
below 90%rh
Explosion mark
Ex ia ⅡB T3 Ga
Protection Level
IP54
Communication method
Wired network
：
RS232
、
RS485(support MODBUS-RTU  communication protocol)
Wireless network
：
RS485(support MODBUS-RTU communication protocol) or GPRS communication (Optional)
Overflow Indication
Measure value larger than Max range, systme software display"OL Ω" symbol
Data Display
System software display
Alarm Indication
The detector audible and visual alarm and system software alarm indication
Alarm Setting
The detector panel settingor system software setting
Single Measurement Time
0.5 second/time
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 Requirements
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)
Detector weight
960g
Detector Dimensions
175mm×170mm×130mm
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