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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: 1uΩ ~ 200uΩ, 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

1mΩ

 

 

±0.1%FS±10dgt

1uΩ

≤5A

100mΩ

0.1mΩ

≤4A

1mΩ

≤500mA

10Ω

0.01Ω

≤210mA

200Ω

0.1Ω

≤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

1uΩ~200Ω

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》

 

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