Portable Wrist Strap Tester, 9 V Battery, 750 Kilohm to 35 Megohm Limits, Vermason - Desco 225221

A wrist strap only protects when band, cord and skin contact add up to the right resistance. The portable Vermason tester checks the complete system at the push of a button against the 750 kilohm and 35 megohm limits of EN 61340-5-1, running on a 9 V battery with no mains adapter.

Key benefits

• Three results: Pass, Fail Low and Fail High. On failure the operator sees at once whether resistance is too high or too low, and an audible alarm sounds.
• 750 kilohm and 35 megohm limits matching EN 61340-5-1, accuracy ±10 % at 750 kilohms and ±15 % at 35 megohms.
• Pocket-size at 91 x 66 x 28 mm and 113 g, ideal for supervisors spot-checking staff on the shop floor.
• Testing at the workstation without walking to a test station, and the hook and loop strip allows wall or bench mounting.
• Supplied with NIST-traceable calibration, no user adjustments required.

Applications

Daily testing of single-wire wrist straps per ESD TR53, supervisor spot checks in production, and a test point for small labs without a fixed tester. Results can be recorded in a test log as ANSI/ESD S20.20 recommends.

Standards

Limits per EN 61340-5-1, wrist strap system testing per ANSI/ESD S1.1, which recommends a daily functional test.