Desco Manuals

DESCO 19270 Human Grounding Combo Tester Operation Manual

The DESCO 19270 Human Grounding Combo Tester is designed to verify the grounding resistance of wrist straps and anti‑static shoes according to ANSI/ESD S20.20 standards. The manual provides detailed instructions for installing the test unit, connecting the power adapter, grounding cable and foot plates, and configuring threshold values.

It also explains operation procedures, indicator meanings, relay dry‑contact functions, routine maintenance, calibration using the optional calibrator or a resistance box, and warranty information. Technical specifications such as test range, voltage, accuracy, and environmental limits are listed for reference. This manual is written in Chinese.

Covers: Device Description · Installation · Operation · Test Procedure · Threshold Setting · Relay and Dry Contact