EPHIPOT EPWT-10B Transformer DC Winding Resistance Tester (500μΩ- 1MΩ)

Function : Transformer winding resistance test, low resistance test, equipotential bonding resistance test, metal connection resistance test, micro-ohmmeter

Power Supply: Built-in: 14.8V 7800mAh rechargeable lithium battery; External: AC 220V/2A 50Hz/60Hz

Test Method : four-wire method

Charger : 16.8V/2A charger

Display Mode: 5.6-inch LCD color screen, 640dots×480dots, display area 116mm×88mm

Test Interface : I+ (current positive), I- (current negative), U+ (voltage positive), U- (voltage negative)

Output Current : 10A, 5A, 1A, 400mA, 200mA, 40mA, <5mA

Range (Mains 220v):

+ 500μΩ ~1.5Ω （10A :

+ 1mΩ ~4.4Ω （Constant current 5A）:

+ 10mΩ ~22Ω （Constant current 1A）:

+ 25mΩ ~55Ω （Constant current 400mA）:

+ 200mΩ ~110Ω （Constant current 200mA）:

+ 1Ω ~550Ω （Constant current 40mA）:

+ 10Ω~1MΩ （Constant voltage <5mA）:

Range (Built-in battery):

+ 500μΩ ~200mΩ （Constant current 10A）:

+ 1mΩ ~800mΩ （Constant current 5A）:

+ 10mΩ~12Ω （Constant current 1A）:

+ 25mΩ ~30Ω （Constant current 400mA）:

+ 200mΩ ~60Ω （Constant current 200mA）:

+ 1Ω ~300Ω （Constant current 40mA）:

+ 1Ω~1MΩ （Constant voltage 12V <5mA）:

Max. resolution : 0.1μΩ

Test accuracy: Constant current file: 0.1%; Constant pressure gear: 2% (23℃± 5℃, below 80%RH)

Overrange prompt : --OL--

Discharge Tips: After the test, the buzzer sounds to indicate that the discharge is in progress, and the buzzer stops after the discharge is completed.

Printer : The instrument panel is embedded with a printer, press the print button to print the test results

Data Storage : After the test is completed, the data is automatically saved, and the cycle is saved, which can store 9999 sets of data

Meter Size : About 320mm(L)×275mm(W)×145mm(H)

Test Line : Both ends of the test lead are tapped, and the wiring is simple

Current : Constant current： 10 A, 5 A, 1A, 400 mA, 200 mA, 40mAConstant voltage: <5mA Also has Auto automatic shifting

Output Power: 150 watts max

Data Deletion: In the data review column, you can choose to delete the current data or delete all data

Data Access : Press the up and down keys to browse the stored data in the data review bar

Firmware Upgrade: The user can upgrade the instrument program through the U disk

Automatic Shut-Down: When using battery power, it will automatically shut down after about ten minutes of no operation.

Battery Voltage: There is a battery indicator on the upper right corner of the meter. When the symbol “ ” is displayed, it means that the battery is exhausted, and the meter will automatically shut down. Please charge it in time.

Temperature Conversion: The instrument automatically processes the test data and has the function of resistance temperature conversion

Data Transmission: It can be transmitted through RS232, U disk, Bluetooth, etc.

Backlight : Backlight can be set to high, medium and low brightness

Test Type : Optional Cu, Al material

Converted Temperature: The tested resistance value can be converted to the resistance value at two temperatures of 75°C and 15°C

Tap : 00-99 can be set

Working Current: The working current is 200mA in the non-test state

Circuit Protection: With back EMF protection, disconnection protection, power failure protection, overheating protection, etc.

Working Temperature And Humidity: -20℃～40℃; below 80%RH, no condensation

Storage Temperature And Humidity: -10℃～60℃; below 70%RH

Suitable For Safety Regulations: IEC61010-1, CAT Ⅲ 600V, pollution level 2, JJG724-1991 "Verification Regulations for DC Digital Ohmmeter", JJG166-1993 "Verification Regulations for DC Resistors", "DL/T967-2005 Loop Resistance Tester and DC Resistance Fast Tester Verification Regulations"

User Guide