Test & Measurement


Power analyser event recorder for power quality checks

18 May 2005 Test & Measurement

Homes, offices, hospitals, and factories depend on electronic devices. In turn, electronic devices depend on good power quality. New from Comtest, the Fluke VR101S is an ideal system for catching sags, swells, transients, outages and frequency variations on line voltage at receptacles, where the most sensitive loads are connected.

The VR101S is a starter system that includes a compact VR101 event recorder, an optical interface cable, and EventView software that turns a PC into a power quality reporting tool. Additional VR101 event recorders can be purchased individually, so one can monitor several voltage conditions at multiple locations at once.

To set up a VR101 event recorder, the event capture limit parameters are simply entered on the PC and loaded into the recorder. EventView software and the optical interface cable simplify this. The recorder is then plugged into the outlet to be tested, and left there. There is no need to leave a computer hooked up.

The compact recorder stores any voltage event that goes outside the limits. The Vr101 recorder can store up to as many as 4000 events and a flashing LED indicates that the events have been captured. To get data out of the recorder, it is connected back to the computer. EventView software can download a complete history of the events that occurred while the recorder was plugged into the receptacle. The software allows one to build a detailed report of sags, swells, transients, outages and frequency variations with time-stamps and durations.



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