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)
|