DESCO 19280 – Wrist Strap and Footwear Combo Tester

• Determines that operator’s personal grounding device is functioning correctly
• Separate test circuits for wrist straps and foot grounders
• Powered by 9v battery or optional power adapter (110v – 98256, 220v – 98257)
• This model does not include a foot plate or stand
• NIST calibrated with certificate included

The Desco Combo Tester verifies the functionality of an operator’s wrist strap and footwear (footwear test requires foot plate). It determines if an operator’s wrist strap and footwear will function correctly. A rocker switch allows the operator to select a wrist strap or footwear test. A green light indicates that the wrist strap or footwear is passing. Red and yellow lights plus an audible alarm indicate when the wrist strap or footwear is failing. If failure occurs, the tester will also display if the grounding device’s resistance is too low or too high.

The Combo Tester may also be used to test smocks or garments that feature a grounding mechanism for operators using a coiled cord connection.

The factory test limits are set to:

• Wrist Straps: 750 kilohms and 10 megohms
• Footwear: 750 kilohms and 100 megohms

Limits meet the required limits for Compliance Verification of ANSI/ESD S20.20 (Wrist Strap System < 3.5 x 107 ohms and Footwear < 1 x 109 ohms tested per ESD TR53).

Each Combo Tester is calibrated with accepted procedures and standards traceable to the National Institute of Standards and Technology (NIST) and includes a NIST certificate.

Powering the Combo Tester

The Combo Tester can be powered by a 9 volt battery or the Desco 98256 (120 VAC) and 98257 (220 VAC) power adapters. Please note, power adapters are sold separately. A warning light on the tester indicates when the battery power is too low and affecting the test results.