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The Desco 19241 Body Voltage Monitor is a single station continuous monitor for one operator, one ESD worksurface and one tool ground. A second monitored jack is featured for use by a supervisor or second operator. The Body Voltage Monitor uses Dual-Channel Voltage Monitoring Technology for true continuous monitoring (versus pulsed or intermittent). The Dual-Channel Voltage Monitoring Technology uses one lead of the dual-wire wrist strap to provide a path-to-ground for the operator while the other lead continuously monitors for voltage induced onto the operator greater than ±3 VDC. Voltage on the operator can be caused by strong AC fields in the work area or by other charge generators such as rolling a non-ESD safe chair. Specifications. Default Test Voltage Operator (Open Circuit): < 0.5 V. Default Test Voltage Worksurface (Open Circuit): < 1.5 V. Default Test Voltage Tool (Open Circuit): < 0.5 V. Default Test Limits Operator: Fail > ±3 VDC. Default Test Limits Alarm Accuracy: ±1 VDC. Default Test Limits Worksurface: < 450 kilohms (Low Fail), 500 k - 5 M (Pass), > 5.5 megohms (High Fail). Default Test Limits Tool: 0 - 2 ohms (Pass), > 3 ohms (Fail).
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