Built in Ground Resistance Online Meter Tester Metal Ring Connection Resistance

Description

Built in Ground Resistance Online Meter Tester Metal Ring Connection Resistance
Introduction
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.
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
～
100Ω
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
PAYMENT INFORMATION:
1.We can accept Credit Cards,Paypal,T/T,Escrow and so on.
2.The buyer is responsible for any tax and/or duty charged by their country.
INTERNATIONAL SHIPPING:
The package will be shipped by EUB DHL, FEDEX or EMS. After we shipped the parcel,we'll fill in the tracking number and inform you by e-mail.Please write the correct address and telephone number when you make orders,so the courier can contact you when they deliver the parcel to you. Thanks！
WARRANTY INFORMATION:
1.All the products have been checked and packed in good condition before dispatch.
2.All the products with one year warranty.
3.If you find any quality problems,please send it back within 3 days,and we'll send you a new one or refund you the payment after we get the returned one.
4.Buyers have to pay for the return cost and we will pay the cost for resend
5.All products returned should be in new conditions.