Verification Tester for Desco Wave Distortion Continuous Monitors - Desco 98221

Continuous monitors with Wave Distortion technology are impedance monitors, and most metrology departments lack the specialised equipment to calibrate or verify them. The Desco 98221 lets you check their test limits yourself, at the workbench and without removing the monitor. A rotary switch applies defined pass and fail loads one after another, and the monitor has to respond with a green LED or an alarm each time.

Key benefits

• Verification in place: operator and mat circuits are tested without removing the monitor from the workstation
• Four operator settings (fail low, pass low, pass high, fail high) confirm that both limits trip correctly
• Dedicated pass and fail settings for the mat circuit
• Extruded aluminium enclosure shields the tester from electrical interference during use
• NIST traceable calibration, certificate included

Applications

Periodic function checks of ground monitors in the ESD protected area. How often to verify depends on the sensitivity of the parts being handled. Desco recommends annual calibration of workstation monitors and of the tester itself.

Standards

Documented verification of the monitors supports the compliance records of an ESD control programme to IEC 61340-5-1.