FMF U9845 4 Channel Impulse Winding Tester 100-5000V 100Msps Coil Turn-to-Turn Tester for Motor Transformer Inductor Coil Test Machine

U9845 Impulse Winding Tester for Coil Turn-to-Turn Testing

The U9845 is a 4-channel impulse winding tester for turn-to-turn insulation and waveform comparison testing on motor windings, transformer windings, inductors, coils, and similar wound components. It provides 100-5000V impulse voltage adjustment in 10V steps and supports high-speed waveform acquisition up to 100Msps for comparing winding response under impulse conditions.

The tester supports four high-voltage channels and four waveform comparison methods: area, differential area, corona, and differential phase. It is suitable for production inspection, laboratory winding checks, incoming quality control, and coil test stations that need repeatable OK/NG judgment and waveform record handling.

Key Features

• 4 high-voltage channels for multi-winding impulse testing.
• 100V-5000V impulse voltage range with 10V setting steps.
• 100Msps maximum waveform acquisition for winding response comparison.
• Four comparison methods: area, differential area, corona, and differential phase.
• Supports manual, foot switch, external, internal, and bus trigger modes.
• OK/NG display with LED and alarm output for production inspection use.
• USB Host supports screen image storage and firmware upgrade.

Suitable Applications

• Motor winding turn-to-turn testing
• Transformer primary and secondary winding testing
• Inductor and coil impulse waveform comparison
• Three-phase machine delta and star connection testing
• Single-phase machine winding comparison checks
• Production quality control for wound components

Specifications

Selection Notes

• Use this tester when the inspection task requires impulse waveform comparison rather than only basic resistance or inductance measurement.
• The tested winding should be within the instrument's impulse voltage and inductance range.
• For automated stations, review the trigger mode, HANDLER signal, and interface requirements before ordering.
• The plug and voltage are configured according to the customer's shipping country by default.

FAQ

What is an impulse winding tester used for?

An impulse winding tester applies a short high-voltage pulse to a winding and compares the waveform response. It is used to check turn-to-turn insulation and winding defects in motors, transformers, inductors, and coils.

Which tester is suitable for motor and transformer coil turn-to-turn testing?

The U9845 4-channel impulse winding tester is suitable for motor winding, transformer winding, inductor, and coil turn-to-turn testing within its 100V-5000V impulse range.

How many channels does the U9845 have?

The U9845 has 4 high-voltage channels for multi-winding impulse testing.

What comparison methods does it support?

It supports area, differential area, corona, and differential phase comparison methods.

Can it be used in a production test station?

Yes. The tester supports OK/NG display, LED/alarm output, multiple trigger modes, HANDLER signals, internal memory, and U-disk storage for production inspection and quality control workflows.