ETCR3700C  Intelligent Milliohm Meter -ETCR

ETCR3700C Milliohm Meter

Product Characteristics

1:Between metal components of equipotential connection resistance test,low value resistance test, DC resistance test, contact resistance test, riveting resistance test, wire length test, etc.

2:Range :0.0001Ω~30.00kΩ

3: Data Storage :400 groups

4: Alarm Fuction : Audible alarm

        ETCR3700C  Milliohm Meter ,adopt  precise 4-wire method to  measure,measurement more accurateIt is a special instrument for detecting the quality of equipotential bonding between metal components in buildings (lightning protection belts, ground beams, structures, protection, floor ribs, water pipes, radiators, bathrooms, windows and doors, balcony, kitchen, etc.), and can also measure The resistance of the connecting conductor between various electrical equipment and the ground of the ground network can also measure the contact resistance of circuit breakers, switches, and socket contacts, as well as various coil resistances, shunt resistances, metal riveting resistance of cars, ships, and aircraft, and electrical welding points. Resistance, battery parallel connection resistance, distribution board busbar and wire contact resistance, etc.The instrument case adopts a waterproof protection box, which is crash-proof, drop-proof and waterproof (protection grade IP65).

     The meter also has an alarm function, a clock function, and a function to test the length of the wire. First, measure the resistance of a standard length of wire, then test the resistance of the entire wire, and then calculate the length of the wire by measuring the resistance twice. The host's large LCD display with backlight and bar graph indication is clear at the same time, and it can store 400 sets of data at the same time. The monitoring software has functions such as reading, viewing, saving, reporting, and printing of historical data.


Range And Accuracy

Accuracy Class Range Accuracy Resolution
0.3Ω Class 0.0001Ω~0.3000Ω ±1%rdg±10dgt  0.0001Ω
3Ω Class 0.300Ω~3.000Ω ±1%rdg±5dgt 0.001Ω
30Ω Class 3.000Ω~30.00Ω 0.01Ω
300Ω Class 30.0Ω~300.0Ω 0.1Ω
3kΩ Class 300Ω~3000Ω
30kΩ Class 3.00kΩ~30.00kΩ 0.01kΩ

(Note: When the measured resistance exceeds the current range test range, please change the range to a suitable range)


Technical Specification

 Function  Between metal components of equipotential connection resistance test, low value resistance test, DC resistance test,metal conductor connecting resistance test between earth poles of ground grid , contact resistance test, riveting resistance test, wire length test, etc.
 Power Supply  DC 7.4V 2.6Ah, rechargeable lithium battery, full charge about 8.4V
 Test Current  ≥2A
 Detection Mode  Precision 4-wire method, two channel A/D simultaneous detection
 Range  0.0001Ω~30.00kΩ
 0.0001Ω~300.0Ω(Only ETCR3700B type)
 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
 Measurement Time  2 second/times
 Data Storage  400 groups (Power down or replace battery will not lose the data)
 Alarm Setting  Alarm critical value setting range; 1Ω~30Ω, 00Ω will not start the alarm function. Will not start the alarm function in start up every time
 Alarm Function  Measure value exceed alarm setting value, will "Toot-toot-toot" alarm indication
 Test Instructions  Blue TESTING light flashes during test
 Charge Indication  In charging, the charger indicator lamp light on red, full charge light on green
 Data Hold  The test result is kept to display automatically after each test
 Clock Function  With 24-hour time system, display hour, minute
 Test Wire  4PCS: red and black each for 2PCS, each wire length 5M
 Backlight Function  Yes, suitable for the dim place
 Display Mode  LCD: 128mm×75mm
 Host Size  280mm×260mm×160mm
 Weight  2270g
 Line Voltage  Line live measurement should be avoided
 Overflow Indication  Exceed measure range overflow function: “OL” symbol display
 Low Voltage Indication  When battery voltage is lower than DC 7.2V±0.1V, low battery voltage symbol will display and remind to replace battery.
 Working Temperature and Humidity  -10℃~40℃;below 80%rh
 Storage Temperature andHumidity  -10℃~60℃;below 70%rh
 Levels Of Protection   IP65(Close the cover)
 Charging Interface  Yes
 USB Interface  With USB interface, software monitoring, storage data can be uploaded to computer, save and print.
 Withstand Voltage  AC 3700V/rms
 Suitable Safety Standard  IEC61010-1,CAT Ⅲ 600V,Polluted Gradation
 JJG724-1991【Verification regulation for DC digital ohmmeter】
 JJG166-19939【DC resistor verification regulation】
 DL/T967-2005【Verification regulation of circuit resistance tester and DC resistance fast tester】



Model Test Current Range Resolution Remark
ETCR3700 ≥2A 1mΩ~30.00KΩ 0.1mΩ Normal version
ETCR3700C ≥4A 1mΩ~30.00KΩ 0.1mΩ Waterproof protection box enclosure


Tester 1PC
USB data transmission cable 1PCS
Software CD 1COPY
Tester bag 1PC
Charger 1PC
Test Wires 4pcs(2 red and 2 black)
Manual、Warranty Card、Certificate 1pcs


ETCR3700C Milliohm Meter Catalog