ETCR2800B Non-Contact Earth Resistance Online Detector

Main Functions

Online monitoring the connection status of the loop earth resistance, metal loop connection resistance and grounding down lead in the loop grounding system.
Perforation Size: 60mm×27mm
Resistance Range: 0.010Ω~200Ω
Communication Mode: RS485 communication,4G communication
Alarm Function: Setting alarm threshold
Explosion Proof Mark: ExiaⅡBT3Ga

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Product Introduction
Technical Parameter
Model comparison
Data download

Product Introduction

ETCR2800B Non-Contact Earth Resistance Online Detector, also known as earth resistance remote on-line detector, non-contact type earth resistance on-line detector, loop resistance on-line detector, which is used for on-line monitoring the connection status of loop earth resistance, metal loop connection resistance and grounding down lead. The detector is suitable for power transmission line pylon grounding, meteorological lightning protection grounding, petrochemical grounding, communication grounding, distribution station grounding, railway facility grounding, construction warehouse grounding, metal loop connection resistance, electrical equipment grounding, etc.
ETCR2800B adopts with non-contact type measurement technology, not request the auxiliary grounding pole, and the grounding wire passes through the core, do not affect the lightning protection grounding effect and the device normal working. The split core structure not request to disconnect the grounding down lead during installation, convenient and fast. The alarm threshold value can be set through the button of the detector panel, and the detector with sound and light alarm indication, the monitor with RS485 communication or 4G communication. Users can set up the wired network system or wireless network system to realize remote on-line monitoring the grounding system.
ETCR2800B Non-Contact Earth Resistance Online Detector pass the explosion proof certification, and the safety and explosion proof certification parameters meet the relevant requirements of GB/T3836.1-2021 and GB/T 3836.4-2021 standards.The explosion proof mark is ExiaⅡB T3 Ga, the detector can apply to the corresponding flammable and explosive environment.
1.Non-contact type measurement technology, not request the auxiliary grounding pole, and the installation is simple.The grounding down lead passes through the perforation of the detector directly, which will not affect the lightning protection grounding effect and the device normal working.
2.Alarm function: Setting alarm threshold (through the develop background software).
3.RS485 communication or 4G communication realize remote real-time monitoring.
4.Explosion proof product can be used in corresponding flammable and explosive environments.

Technical Parameter

Power Supply	6V DC~12V DC, 50mA Max (optional 4G 12VDC 150mA Max) (Intrinsically safe parameter: Ui: 12V; Ii: 500mA; Ci:0; Li: 0, Pi: 1W. RS485 parameter: Ui:9V;Ii:100mA;Ci:0;Li:0,Pi:0.9W) The matching relationship between the intrinsically safe equipment and the safety barrier: Uo≤Ui, Io≤Ii, Po≤Pi, Co≥Ci, Lo≥Li
Power Supply Mode	External power supply. When used in hazardous site, The power supply must be connected to the detector through the DC signal input isolation type safety barrier, and the safety barrier should be placed in a non-hazardous site.
Resistance Range	0.01Ω~200Ω
Resolution	0.001Ω
Accuracy	±2%rdg±3dgt(20℃±5℃, below 70%RH)
Power Communication Cable	1PCS, length 1m (5-core wire)
Wiring Mark	Red---power input positive; Black---power input ground; Green---RS485 signal positive; Yellow-green---RS485 signal negative; White---shielding ground; (the power input ground and the shielding ground can be connected with short circuit)
Communication Mode	RS485 or 4G communication (optional)
Alarm Indication	Sound & light alarm
Alarm Setting	Background software(developed) setting
Alarm Threshold Setting Range	Resistance: 0Ω~500Ω (Turn off alarm function when set to 500)
Perforation Size	60mm×27mm
Detector Size	144mm×130mm×84mm
Weight	About 870g
Shift Gear	Fully automatic shift
Grounding Lead Interference Current	Should be avoided
External Magnetic Field	＜40A/m
External Electric Field	＜1V/m
Single Measurement Time	About 0.5 second
Power Consumption	Detector: 50mA Max(Optional 4G 12VDC 150mA Max)
Explosion Proof Mark	Exia ⅡB T3 Ga
Protection Level	IP54
Normal Version 4G	LTE-FDD B1/B3/B5/B8 LTE-TDD B34/B38/B39/B40/B41
Global Version 4G	LTE-FDD B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28 LTE-TDD B38/B39/B40/B41 WCDMA B1/B2/B4/B5/B6/B8/B19 GSM B2/B3/B5/B8
Working Temperature & Humidity	-20℃~55℃; 20％RH~90％RH

Model comparison

Product Picture	Product Model Name	Clamp Jaw Size	Resistance Range	Clamp Jaw Structure	LCD Displayer	Alarm Function	Communication Method
	ETCR2800B Earth Resistance Online Detector	60mm×28mm	0.01Ω~200Ω		--	Yes	RS485,4G(optional)
	ETCR2800C Earth Resistance Online Detector	60mm×28mm	0.01Ω~200Ω		Yes	Yes	RS485,4G(optional)
	ETCR2800KB Split-Core Earth Resistance Online Detector	56mm×26mm	0.01Ω~100Ω	Closed Loop	--	Yes	RS485,4G(optional)
	ETCR2800KC Split-Core Earth Resistance Online Detector	56mm×26mm	0.01Ω~100Ω	Closed Loop	Yes	Yes	RS485,4G(optional)
	ETCR2800E Small Caliber Earth Resistance Online Detector	Φ17mm	0.01Ω~100Ω	Small Caliber	Yes	Yes	RS485,4G(optional)
	ETCR2800N Built-in Earth Resistance Online Detector	66mm×36mm	0.01Ω~100Ω	Built-In	Yes	Yes	RS485,4G(optional)
	ETCR2800T Stainless Steel Earth Resistance Online Detector	60mm×30mm	0.01Ω~100Ω	Stainless Steel Housing	Yes	Yes	RS485,4G(optional)
	ETCR2800X Large Caliber Earth Resistance Online Detector	130mm×20mm	0.01Ω~10Ω	Closed Loop	Yes	Yes	RS485,4G(optional)

Data download

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ETCR2800B Non-Contact Earth Resistance Online Detector

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