Non-Contact Resistance Online Tester

Features:

Temperature resistance, cold-resistant, corrosion prevention, fire prevention

Rigorous and firm, against rain, dustproof, installation and can be used outdoors

Non-contact measurement, safe and reliable, Ease of installation

Grounding down lead is directly through the detector perforation, Will not affect lightning protection grounding effect and the normal operation of the facilities. Ensure high-accuracy, high stability and high reliability of long time on-line monitoring outdoors, underground mine and indoors.

Detector provides power supply and RS485 signal interface, and standard MODBUS-RTU communication protocol

 

 

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

 

Specification:

Power Supply: 6VDC~9VDC, 50mA Max

Resistance Rang: 0.01Ω~200Ω

Resolution: 0.01Ω

Accuracy:  plusmn;2%rdg±3dgt(20℃±5℃, below70%RH)

 

Functions	Return circuit ground resistance, metallic return connection resistance, grounding conditions on-line monitoring
Power Supply	6VDC~9VDC, 50mA Max.
Resistance Range	0.01Ω~200Ω
Resolution	0.001Ω
Accuracy	plusmn;2%rdg±3dgt(20℃±5℃, below70%RH)
Grounding Wire Perforation Size	60mm×30mm, closed mode (60mm×4mm steel flat or external diameterФ30mm electric cable)
Connecting Line	A one meter long wire (5cores shielded wire)
Connection Identifier	Red/brown---power supply input anode. Black--- power supply input cathode Blue---RS485 signal anode. Grey---RS485 signal cathode. White--- analog grounding (power supply input cathode can connects with analog grounding by short circuit connection).
Communication Protocol	RS485 standard MODBUS-RTU communication protocol
Detector Dimensions	175mm×170mm×130mm
Installing Screw Hole Size	Φ8mm
Quality	Detector:960g
Working Temperature And Humidity	-10℃~40℃; 20%RH~90%RH
Humiture Error	Within 5%
Shift	Automatic shift
GND Interference Current	Prohibited
External Magnetic Field	＜40A/m
External Electric Field	＜1V/m
Single Measurement Of Time	About 0.5 second
Power Consumption	50mA Max.
Installation	Grounding wire through Detector centre bore
Level Of Protection	IP65
Installation Requirements	Avoid rain and water logging
Power Supply Mode	External power supply (Equipped by user)