The EMIT 50524 Limit Comparator is used to perform periodic testing of EMIT Dual-Wire Continuous Monitors. It may also be used to verify the calibration of the Desco Mini Zero Volt Monitor and Dual-Wire Dual-Operator Programmable Monitor. The Limit Comparator allows the customer to perform NIST traceable calibration verifying that the continuous monitor is operating within tolerances. Using the 50524 takes only a few minutes and is designed to be used on the shop floor at the workstation to virtually eliminate downtime.
Frequency of recalibration should be based on the critical nature of those ESD sensitive items handled and the risk of failure for the ESD protective equipment and materials. In general, EMIT recommends that calibration be performed annually.