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  All Products >> DZ900 Universal Type (details)

DZ900 Motor Stator Tester (universal type)



Appearance Reference           Application Case



Applicable to electrical properties test of stators of /Y-type three-phase motors, single-phase motors, automobile generators, brushless motors, series excitation motors, servo motors, synchronous motors


Functional Features

Stator insulation resistance, HIPOT, coil DC resistance, turn to turn surge tests can be automatically completed in one time

Enable or disable any test items, set pass criteria; release automatic light or sound alarm upon test result over-limit

Unique automatic range switching and test tracking; therefore a higher accuracy than other similar instruments throughout the measurement range. It is not required to set the instrument measurement range as the stator coil resistance range is not required to know beforehand; even an ordinary operators can sample a stator with its parameters unknown very easily and formulate the automatic judgment criteria

Automatically identify slight difference in coil resistance resulting from inner and outer layer winding process although some three-phase motor windings are the same in the number of turns, thereby more accurately analyzing the coil turns errors or slight difference in enameled wire diameter.

For three-phase, brushless and other closed-loop wired motors, measure the resistance of the measured phase coil by using the true resistance test (equivalent to measurement with closed loop disconnected); it features more powerful winding error and fault identification capabilities.

Automatic, multiple-wave judgment of turn-to-turn surge test between any bars under any form of surge, any times of surge; observe abrupt change in rising edge and wave crest, and automatically discover coil turn to turn insulation defects

Unique HIPOT test between any phases, from any coil windings to core; better insulation NG analysis, easy fault location and troubleshooting (optional)

HIPOT, turn to turn surge test voltage settable, automatically generated and regulated; test data immune to fluctuations from external grid; offset the inherent leakage current of test system automatically; monitor and check the effectiveness of HV test automatically

Save, edit and call the automatic judgment criteria for stators of different models or specifications; with no quantity limitations

Powerful data management function; can automatically number each stator, check the test result and graph for each model and stator, and generate statistics reports; reports can be exported via a USB disk

Single-station/double-station optional, extremely high test efficiency

Modify technical specifications, add functionalities, design and manufacture test tooling based on order requirements

>>> Enter the Product Series Selection Guide ...


Technical Specifications


DC Resistance Test

Measurement Range: 0.500 mΩ20.00 kΩ (automatically switch the range in the FSR; selected based on the order requirements)

Measurement Accuracy: ±1.5%, ±0.5% (optional)

Insulation Resistance Test

Test Voltage: DC 500V automatic regulated (DC 1000V customizable)

Measurement Range: 5500 MΩ

Measurement Accuracy: ±5%


Test Voltage: max. 1kV/2kV/3kV optional (settable, auto-regulated)

Leakage Current: 0.15 mA, 10 mA, 20 mA optional

Measurement Accuracy: ±5% (@:≥0.1 mA)

Test Time: settable from 0 to 60 seconds

Surge Test

Voltage Peak: max. 1kV/2kV/3kV optional

Measurement Accuracy: ±5% of voltage peaks settable; the instrument regulates the storage capacitor automatically

Sampling Frequency: 40MHz (adaptive)

Host Computer


Color Display

17-inch LCD, true color



Input Device

Keyboard and mouse;

Operating Power Supply

AC220V±10%, 50Hz

Operating Air Pressure


Operating Ambient Temperature


Operating RH


Outline Dimensions Reference (mm)

Height: 16501750

Width: 600800

Depth: 580800

Dielectric Strength

1500V, 50Hz, 1min

Equipment Weight

About 100kg (depending on configuration)


1. “Optional” parameters, functions, number of stations, test fixtures and special specifications herein are subject to order negotiation and the state at delivery.

2. For technical indicators, test functions, system functions, shape & structure, configuration of fixtures & clamps, the ordering requirements shall prevail
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