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ETCR3700C Equipotential Bonding Resistance Tester

Main Functions
Used to measure the equipotential bounding resistance between metal components and  equipotential bounding resistance between grounding grid and grounding pole
Resistance measurement range: 1mΩ~30.0kΩ
Resistance measurement gear: 0.3Ω, 3Ω, 30Ω, 300Ω, 3kΩ, 30kΩ
Test Current: 4A MAX
Alarm function: setting alarm threshold.
Memory: data storage 400 groups
Lithium battery
    Product Introduction
    ETCR3700C Equipotential Bonding Resistance Tester, also known as DC Low Resistance Tester, which is used for measuring the eauipotential bonding resistance in constructions and metal components(lightning belt, grade beam, structure, protection, floor bar, water pipe, radiator, toilet, doors and Windows, balcony, kitchen and other objects), also can measure the contact resistance of circuit breaker, switch and socket contacts as well as a variety of coil resistance, diverter resistance and metal riveting resistors for vehicles, ships and aircraft, resistance of the welding contacts, the parallel connection resistance of storage battery, the contact resistance of the distributor bus(bar) and wire,etc. The instrument is equipped with large capacity lithium battery pack, especially for outdoor construction site to use. lt is widely used in construction quality inspection station, supervision company, construction unit, lightning protection company, electric power department and ship locomotive factory, etc.
    ETCR3700C Equipotential Bonding Resistance Tester consists of the host, monitoring software, test leads, chargers, and USB communication wires. The instrument adopt with precision four-wire method for testing, which is accurate and reliable. It also has the functions of alarm function, clock function, and test wire length. The host with large LCD display. backlight, bar graph indication, clear and obvious, it can store 400 groups of data at the same time. The monitoring software has functions such as reading, reviewing, saving, reporting, and printing of historical data.
    1.Adopt with precision four-wire measurement is used to make the test more accurate.
    2.Resistance measurement gear: 6 gears, 0.3Ω, 3Ω, 30Ω, 300Ω, 3kΩ, 30kΩ
    3.Alarm function: setting resistance alarm threshold
    4.Clock function
    5.Memory: data storage 400 groups
    6.USB communication interface
    7.The waterproof instrument box is particularly suitable for outdoor use.
    Technical Parameter
    1.Measurement Range & Accuracy
    Gear Measurement Range Accuracy Solution
    0.3Ω Gear 1mΩ~300mΩ ±1%rdg±10dgt 0.1mΩ
    3Ω Gear 300mΩ~3000mΩ ±1%rdg±5dgt 1mΩ
    30Ω Gear 3.000Ω~30.00Ω 0.01Ω
    300Ω Gear 30.0Ω~300.0Ω 0.1Ω
    3kΩ Gear 300Ω~3000Ω
    30kΩ Gear 3.00kΩ~30.00kΩ 0.01kΩ

    2.Technical Specifications
    Power Supply DC 7.4V 2600mAh rechargeable lithium battery
    Test Current 4A  MAX
    Measurement Method Precision four-wire method, 2 A/D simultaneous detection
    Measurement Range 1mΩ~30.00kΩ
    Wire Length Test L: ≤999999m
    Standard Wire Length Standard wire length setting range: 1m~30m
    Test Interface C1 current positive, C2 current negative, P1 voltage positive, P2 voltage negative
    Test Time 2 seconds/time
    Memory 400 groups(power down or replace the battery will not lose the data)
    Alarm Setting Alarm threshold setting range: 1Ω~30Ω, 00Ω does not start the alarm function, and the alarm function is not activated every time the machine is turned on.
    Test Indication When the measured value exceeds the alarm set value,“Du-Du-Du-" Alarm prompt
    Alarm Prompt The blue TESTING light flickers during the test
    Charging Indication The indicator light on the charger lights up red when charging, and green when fully charged
    Data Hold Automatically keep displaying the tested result after each test
    Clock Function 24-hour clock, showing hours and minutes
    Test Line 4 PCS: 2 pieces each in red and black, each line is 5m length
    Backlight Function Controllable gray-white screen backlight, suitable for use in dim place
    Line Voltage Live line measurement should be avoided
    Overflow Display Overrange overflow function: "OL" symbol display
    Low Voltage Indication When the battery voltage drops to DC 7.2V ± 0.1V, the low battery voltage symbol is displayed, remind charging the instrument in time.
    Protection Level IP65(cover closed)
    USB Communication Interface with USB interface, software monitoring, data storage can be uploaded to the computer, saved and printed
    Display Mode 280mm×260mm×160mm
    Host Size 2270g
    Weight with USB interface, software monitoring, data storage can be uploaded to the computer, saved and printed
    Withstand Voltage AC 3700V/rms(Between the shell and the screw)
    Suitable Safety Standard IEC61010-1, CAT Ⅲ 600V, pollution level 2, JJG724-1991 "DC Digital Ohmmeter Verification Procedures", JJG166-1993 "DC Resistor Verification Procedures", "DL/T967-2005 Loop Resistance tester and DC Resistance Rapid tester Verification Procedures"
    Working Temperature & Humidity -10℃~40℃; below 80%RH
    Storage Temperature & Humidity -10℃~60℃; below 70%RH
    Model comparison
    Product Picture Product Model Name Test Current Resistance Range Alarm Function Line Resistance Verification USB Communication Others
    ETCR3700 Equipotential Bonding Resistance Tester 2A 1mΩ~30kΩ Yes Yes Yes  
    ETCR3700C Equipotential Bonding Resistance Tester 4A 1mΩ~30kΩ Yes Yes Yes Watertight Submersible Casing
    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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