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ETCR2800N Built-in Earth Resistance Online Detector

Main Functions
On-line monitoring the connection status of the loop earth resistance, metal loop connection resistance and grounding down lead in the loop grounding system,Metal Cable Anti-theft Monitoring
Perforation Size:Φ17mm
Resistance Range: 0.010Ω~200Ω
Communication Mode: RS485 communication,4G communication
Alarm Function: Setting alarm threshold
Explosion Proof Mark: ExiaⅡBT3Ga
    Product Introduction
    ETCR2800N Grounding Resistance Online Detector, also known as Built-in earth resistance remote on-line tester, 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, grounding down lead and Metal Cable Anti-theft Monitoring. 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.
    ETCR2800N adopt 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.
    ETCR2800N Earth Resistance On-line 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.Provide sensor and PCB module to facilitate user to develop earth resistance on-line monitoring product for the second time.
    3.Alarm function: Setting alarm threshold (through the button of the detector panel or the develop background software).
    4.RS485 communication or 4G communication realize remote real-time monitoring.
    5.Explosion proof product can be used in corresponding flammable and explosive environments.
    Technical Parameter
    Power Supply 6VDC~12VDC, 50mA Max(External power supply)
    Data Display 4-digit LCD
    LCD Size 47mm×28.5mm
    Resistance Range 0.01Ω~100Ω
    Resolution 0.001Ω
    Accuracy      ±2%rdg±3dgt(20℃±5℃, below 70%RH)
    PCB Size 75mm×54mm×22mm
    Sensor Size 110mm×80mm×55mm
    Perforation Size 65mm×36mm
    Sensor Weight About 568g
    PCB Interface J1: Signal output, power input interface
    J2: Sensor and PCB connection port
    J1 Mark P+: Power input positive
    P-: Power input ground GND: Signal ground,short circuited to power input ground (P-)
    R+: Signal output positive
    R-: Signal output negative
    J2 Mark I+, I-current coil interface
    U+, U-voltage coil interface
    GND:common-ground
    Connection Cable 1 PCS, length 0.5m  (5-core wire)
    Signal Cable 1PCS, length 1m (5-core wire)
    Alarm Setting Detector panel button setting or Background software(developed) setting
    Alarm Threshold Setting Range Resistance: 0Ω~500Ω (turn off the alarm function when set to 500)
    Communication Mode RS485 or 4G communication (optional)
    Wiring Cable Red---power input positive;
    black---power input ground;(the power input ground and the shielding ground can be connected with short circuit)
    Green---RS485 signal positive;
    yellow-green---RS485 signal negative;
    White---shielding ground;
    Overflow Indication When the test value is greater than 100Ω, the LCD display the “0LΩ”symbol
    Measurement Range Gear Shift 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
    Working Current 50mA Max.
    Install The ground wire penetrate through the center hole of the sensor
    Installation Requirement The circuit board need to be placed in another protective box
    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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Guangdong ETCR Electronic Technology CO.,Ltd
Our corporate focuses on the research, development, and production of intelligent power testing and control instruments; and also provides OEM service.
Guangdong ETCR Electronic Technology CO.,Ltd
Our corporate focuses on the research, development, and production of intelligent power testing and control instruments; and also provides OEM service.

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(+86)13802922567

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