Wuhan Wugao Electric Measurement Co., Ltd

WD3045 Series Digital Insulation Resistance Meter (Megohmmeter 5 kV/10kV/15kV 50TΩ 6mA)

WD3045 series digital insulation resistance tester, also known as megger, high voltage insulation resistance meter, is used for insulation resistance test.

WD3045 series digital insulation resistance tester has shock-proof, dust-proof and moisture-proof structure, suitable for harsh working environment, it is commonly used in telecommunications, electric power, meteorology, computer room, oil field, electromechanical installation and maintenance, and industrial enterprises that use electric power as industrial power or energy. And an essential instrument. It is suitable for measuring the insulation resistance value of various insulating materials and transformers, motors, cables and electrical equipment.

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Product Details


WD3045 series digital insulation resistance tester consists of medium and large scale integrated circuits. The instrument has high output power and many output voltage levels (there are 6 voltage levels).  

The rated insulation test voltage range is 100V ~ 15kV (the output voltage is determined according to the model), and at the same time, it has a step-by-step voltage adjustment function to output a variety of different voltage levels (for example, the 15kV model can generate 12KV and other voltage levels, and the range of use is wider),

Insulation resistance measurement range 0.01MΩ~50TΩ (determine the measurement range according to the model);

DC voltage measurement range 0 ~ 1000V;

AC voltage measurement range 0 ~ 750V;

DC current measurement measurement range 0.01nA ~ 6mA;

Capacitance measurement range 10nF ~ 50uF.

Item No,


WD3045 E

WD3045 F

maximum output voltage




Resistance limit range




FeaturesInsulation resistance test, voltage test, current test, capacitance test
Baseline conditions23℃±5℃, below 75%rh
Rated applied voltage (V)100V;250V;500V;1000V;2500V;5000V   Accuracy rated voltage × (1±10%)
250V;500V;1000V;2500V;5000V;10KV   Accuracy rated voltage × (1±10%)
500V;1000V;2500V;5000V;10KV;15KV   Accuracy rated voltage × (1±10%)
Insulation resistance range (GΩ)0.01MΩ~10TΩ     Accuracy: ±3%rdg±5dgtResolution 0.01MΩ
0.01MΩ~35TΩ      Accuracy: ±3%rdg±5dgtResolution 0.01MΩ
0.01MΩ~50TΩ     Accuracy: ±3%rdg±5dgtResolution 0.01MΩ
DC voltage range0.1~1000V        Accuracy: ±1.5%rdg±3dgtResolution 0.1V
AC voltage range0.1~750V          Accuracy: ±1.5%rdg±3dgtResolution 0.1V
DC current measurement0.01nA~6mA       Accuracy: ±5.0%rdg±5dgtResolution 0.01nA
Capacitance measurement10nF~50uF          Accuracy: ±10%rdg±5dg(resolution 10nF)
output short circuit current≥6mA
Absorption Ratio and Polarization Index MeasurementsHave
power supply12V rechargeable battery
BacklightControllable gray and white screen backlight, suitable for use in dark places
display mode4-digit large LCD display, gray and white screen backlight
LCD display size108mm×65mm
Meter size240mm (L)×188mm (W)×85mm (H)
USB interfaceWith USB interface, software monitoring, storage data can be uploaded to the computer, save and print
communication line1 USB communication line
test lineHigh voltage bar red 3 meters, high voltage test line black 1.5 meters, green line 1.5 meters
data storage500 groups, flashing "FULL" symbol indicates that the storage is full
Data accessData access function: "READ" symbol display
overflow displayOverrange overflow function: "OL" symbol display
Alarm functionWhen the measured value exceeds the alarm setting value, an alarm prompt will be issued
Power consumptionStandby: 30mA Max (backlight off)
Turn on the backlight: 42mA Max
Measurement: 200mA Max (backlight off)
Instrument quality2340g (including battery)
battery voltage
The battery voltage is insufficient, and the low battery symbol "     " is displayed
Automatic shut-downThe meter shuts down after about 15 minutes of inactivity
Insulation resistance≥50MΩ (between measurement line and shell)
Pressure resistanceAC3kV/50Hz 1min
Operating temperature and humidity-10℃~+50℃<85%RH
Storage temperature and humidity-15℃~+55℃<90%RH
Suitable for safety regulationsIEC61010-1, IEC1010-2-31, IEC61557-1, 5, IEC60529 (IP54), pollution, etc. 2, CAT Ⅲ 300V




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Address:13 / F, Building 2, Hangang Science and Technology Industrial Park, Jintan Road, Wuhan, Hubei, China.