431 Surface Impedance Tester
- Detects static electricity and also tests ion balance
- Equipped with multiple working modes to meet different needs
- High-definition panel with clear numeric display
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Category: Testers
Features
- Four operating modes available.
- Two measurement functions:
- a) Static electricity measurement
- b) Ion balance voltage measurement
- Two voltage measurement modes:
- a) Instantaneous static voltage
- b) Maximum static voltage
- Easy to use, with convenient test distance positioning.
- Compact and portable design.
Specifications
| Specification | Value |
|---|---|
| Model | QUICK 431 |
| Power supply | 9V battery |
| Display method | LCD with synchronized step order and measurement range display |
| Static voltage measurement range |
Low range: 0 – ±1.50 kV High range: 1 – ±22.0 kV (automatic range switching) |
| Ion balance measurement range | 0 – ±220 V |
| Standard measurement distance | 25 mm (±0.5 mm) |
| Measurement accuracy | ± (10% + 1 digit) |
| Standby current | < 3 μA |
| Operating current | < 15 mA |
| Operating conditions | 0 ℃ – 50 ℃, RH: 0% – 80% |
| Dimensions | 125 × 70 × 25 mm |
| Weight | Approx. 0.2 kg (including battery and ion balance test plate) |
Illustration

Applications
- Measure static charge on products such as films and plastics.
- Measure static charge along production lines.
- Measure static charge around equipment.
- Measure ion balance of static eliminators.
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