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Non-Contact Resistance Online Tester
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Product Name: Non-Contact Resistance Online Tester
Product Numbers: EGRT-1428
Product Specifications: Resistance Rang: 0.01Ω~200Ω
Product Remark: Resolution: 0.01Ω
Product Class:Measuring and Testing Instruments > Electronic test Instruments > Earth Ground Testers
Product Details
【DateTime:2013-09-03 Browse:】【Font: Big Mid Small】【Print】【Close
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)

Resistance Online Tester application 1

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