ETCR3640 Portable Milliohmmeter DC Low Value Resistance Tester

ETCR3640 Portable Milliohmmeter DC Low Value Resistance Tester
ETCR3640 Portable Milliohmmeter, also named DC Low Resistance Tester, DC Resistance Tester, Ohm Meter and so on), It is accurate and reliable adopt with the microprocessor technology and precision 4-wire method to testing. It is mainly used for measuring the wire resistance of cables, the contact resistance of switches, connectors and relays, the low DC resistance of windings coils, motors and transformers line resistance, the connection resistance between metal rivets parts and metal components, and the connection resistance between conductors connected at ground grids poles. It is widely used in construction quality inspection station, supervision company, construction unit, lightning protection company, electric power department, ship engine factory, etc.
ETCR3640 Portable Milliohmmeter consists of the host and test leads. The host with large LCD display, clear and obvious, it can store 200 groups of data at the same time. The resistance measure range is: 1uO ~ 200uO, the max test current is : 5A, Accurate measurement by Kelvin double bridge method, no need to verify the line resistanceequip with the rechargeable lithium batteries which the battery capacity is 2000mAh, the tester operate easy and carry.
Measure Gear And Accuracy
Gear Range Accuracy Resolution
1mO  
±0.1%FS±10dgt 1uO =5A
100mO 0.1mO =4A
1O 1mO =500mA
10O 0.01O =210mA
200O 0.1O =21mA
Technical Specifications
Function Description
Function Mainly used for measuring the wire resistance of cables, the contact resistance of switches, connectors and relays, the low DC resistance of windings coils, motors and transformers line resistance, the connection resistance between metal rivets parts and metal components, and the connection resistance between conductors connected at ground grids poles,etc.
Power Supply  DC 3.7V ,7000mAH rechargeable lithium battery
Power Working current = 5A
Detection Method Precision 4-wire method, 2-channel A/D simultaneous detection
Range 1uO~200O
Test interface C1 current is positive, C2 current is negative, P1 voltage is positive, P2 voltage is negative
Measure Time 2 seconds / time
Data Storage 200 groups (power down or replace battery will not lose the data)
Test Instruction Blue testing light flashes during testing
Test Wires 2 groups: each group of red and black, wire length 0.8m
Backlight Function Yes, suitable for using in dark places
Display Mode LCD: 58.5mm×46mm
Host Size 159mm×100mm×66mm
Weight Tester: about 460g (with battery); total weight:640g (with accessories)
Line Voltage Live line measurement should be avoided
Overflow Display Over range overflow function: "OL" symbol display
Low voltage indication When the battery voltage drops to 3.5V±0.3V, the battery voltage is low and the symbol is displayed, and remind to charge in time.
Working Temperature And Humidity -10?~40?; Below 80%rh
Storage Temperature And Humidity -10?~60?; Below 70%rh
Withstand Voltage AC 3700V/rms (between the case and the screw)
Suitable Safety Standard IEC61010-1, CAT III 600V, pollution degree 2, JJG724-1991«DC digital ohmmeter verification procedure»,JJG166-1993«DC resistance verification procedure»,«DL/T967-2005 DL/T967-2005 loop resistance tester and DC resistance fast Tester verification procedure»