The DESCO 19270 Combo Tester manual explains installation, operation, calibration and maintenance for wrist‑band and anti‑static shoe testing.
The DESCO 19270 Combo Tester is a dual‑foot‑plate ESD testing instrument that checks the grounding resistance of wrist‑bands and anti‑static shoes according to ANSI/ESD S20.20. The manual describes the device’s components, optional accessories, and the environmental conditions required for accurate measurements.
Installation steps cover mounting the test panel, connecting the grounding wire, power adapter, and foot‑plates. Operation instructions detail threshold setting, test procedures, indicator meanings, and relay/ dry‑contact functions. Maintenance, calibration, and warranty information are also provided. This manual is written in Chinese.
| Power adapter | 100~240VAC to 12VDC/0.5A, cable 1.83 m |
|---|---|
| Test range | 100 kΩ ~ 1 GΩ |
| Test voltage | 30 VDC (open‑circuit) |
| Test accuracy | ±10% (default), ±20% at 1 GΩ setting |
| Relay rated current | 1 A @ 30 VDC, 0.5 A @ 125 VAC |
| Operating temperature | 5 °C ~ 30 °C (21 °C ~ 30 °C at 1 GΩ) |
| Operating humidity | ≤80 % RH, <50 % RH at 1 GΩ |
| Test panel dimensions | 288 mm × 197 mm × 37 mm, 0.5 kg |
| Foot‑plate dimensions | 337 mm × 387 mm × 29 mm, 2.5 kg |
Calibration uses an external resistance box; select the appropriate standard resistance, connect it as shown, and verify the indicator lights for each channel to set the upper and lower limits.