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  All Products >> DZ901 Scanning Type (details)

DZ901 Motor Stator Tester (scanning type)



Appearance Reference              Scan Screen                      Application Case


Applicable to precision electrical properties test of stators of /Y-type three-phase motors, single-phase motors, hub generators, brushless motors and servo motors


Functional Features

Proprietary slot by slot precision scanning and coil detection function; judgment threshold can be set for stators automatically; detect wiring errors, outgoing wire errors, wrong embedding in slots, partial de-embedding, number of turns out of tolerance, give alarm in case of test data over-limit, and provide fault information to facilitate repair.

Stator insulation resistance, HIPOT, coil DC resistance, turn to turn surge tests and wrong winding in coil units 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

It is not required to set the instrument measurement range; even an ordinary operator can sample a motor stator with its parameters unknown very easily and formulate the automatic judgment criteria; test results immune to ambient temperature

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

Inter-phase resistance balance test function; 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; 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

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

Immune to stator high-voltage breakdown ignition in the test process, the instrument can work stably and reliably

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, high practicality and 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

Range: 5500 MΩ (DC 500V automatic regulated, DC 1000V customizable)

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% (voltage peak settable; the instrument regulates the storage capacitor automatically)

Sampling Frequency: 40MHz (adaptive)

Scan & Detection

Resolution: single-wave area difference: ±3%, full-wave area difference: ±3%

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


Dimensions Reference

Height: 16501750

Width: 600800

Depth: 580800

Dielectric Strength

1500V, 50Hz, 1min

Equipment Weight

About 100kg


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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