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Product Series : Handheld Contract Loop Resistance Tester
Used for measuring the small resistance of high voltage switches, circuit breakers, relay metal contacts, etc
Test Current(DC)：50A, 100A(2 gear
Test Time :Fast,10s, 20s, 30s, 40s, 50s, 60s
Weight:Approx. 5.74kg(include accessories)
Measurement Range:0.0uΩ~10.000mΩ
Product Introduction
ETCR EM3690 Series Handheld Type Contract Loop Resistance Tester also known as contact resistance tester. The tester adopts microprocessor technology, tesing with precision 4-wire method, which is accurate and reliable. The tester mainly used for measuring small resistance of the high voltage switches, circuit breakers, relay metal contacts, etc. The tester is small in size and light in weight, equipped with large-capacity lithium battery pack, which can perform 500 times measurements on a single full charge. Widely used in building quality inspection stations, supervision companies, construction units, lightning protection companies, power departments, marine locomotive factories, etc.
1. 5-inch touch colorful screen, large-capacity power lithium battery, handheld type structure, easy to carry and simple to operate.
2. Max. test current up to 100A, comply with the power standard of the "DL/T845.4-2004".
3. Anti-power frequency interference, meet the application request of 1000KV substation.
4. The housing insulation, sealing, anti-leakage, anti-wind & sand, shock protection and other functions.
5. Max. store 1000 groups data and will not lose data when power is off.
6. The instrument has Bluetooth communication, USB interface, automatic shutdown and other functions.
7. The instrument has overheat protection function, which will stop testing when the internal temperature is too high.
*The C model equipped with a thermal printer, which can print test results on site.
Technical Parameters
Product Model | EM3690 | EM3690C |
Test Current(DC) | 50A, 100A(2 gear | 10A,20A,30A,40A,50A,60A,70A,80A,90A,100A(10 gears) |
Test Time | Fast, 10s, 20s, 30s, 40s, 50s, 60s | Fast, 1~60s (customize) |
Weight | Approx. 5.74kg(include accessories) | Approx. 6.07kg(include accessories) |
Measurement Range | 0.0uΩ~10.000mΩ | 0.0uΩ~80.000mΩ |
Test Method | Precision 4-wire method, 2 channels A/D simultaneous detection | |
Power Supply | DC 7.4 V 17600mAh rechargeable lithium battery | |
Max Resolution | 0.1uΩ | |
Output Voltage | Approx. 3.7V | |
Test Current Accuracy | ±5% | |
Measurement Time | ＞500 times (100A fast mode) | |
Overflow Display | Over-range overflow function: The meter displays over-range, please check the wiring | |
Battery Power Indicator | Real-time display of current battery power | |
Data Storage | 1000 groups (data will not be lost after power failure or battery replacement) | |
Data Hold | After test, the test results will be automatically displayed. | |
Automatic Shutdown | After setting automatic shutdown, the tester will automatic shutdown after 15 minutes without any operation | |
Test Wire | Red*1PCS; Black*1PCS | |
Display mode | 5-inch true color LCD touch screen | |
Host Dimension | 263mmX152mmX74mm | |
Working Temperature &Humidity | -10℃~40℃; below 80%RH | |
Storage Temperature &Humidity | -10℃~60℃; below 70%RH | |
Bluetooth Communication | Yes, can communicate with mobile terminals | |
External Printer | Bluetooth thermal printer, powered by lithium battery 7.4V 1200mAh (only Type C) | |
USB Interface | With USB interface, software monitoring, storage data can be uploaded to computer, save and print. | |
Withstand Voltage | AC 3700V/rms(between the housing and screws) | |
Safety Regulations | IEC61010-1, CAT Ⅲ 600V, Pollution Degree 2, JJG724-1991 "Verification Regulation for DC Digital Ohmmeters", JJG166-1993 "Verification Regulation for DC Resistors", DL/T967-2005 "Verification Regulation for Loop Resistance Testers and Rapid DC Resistance Testers", JJG 1052-2009 "Verification Regulation for Loop Resistance Testers and DC Resistance Meters", DL/T845.4-2004 "General Technical Specifications for Resistance Measurement Devices Part 4: Loop Resistance Testers" | |
Accessories | Tester: 1PCS; Test lines: red*1PCS; black*1PCS; USB communication cable: 1PCS; 0.5mΩ standard resistor: 1PCS; Power adapter: 1PCS; Tool bag : 1PCS; Printer: 1PCS (Type C only); Printer charger: 1 PCS(Type C only) | |
Model Comparison
Product Video
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10th Floor, Block 5, Liandong Intelligent Manufacture Park, No. 105, Shilong North Road, Nanhai District, Foshan City, Guangdong, China
