Overview
Model UMWF400, UMKF400 series, programmable watt & var meters, are specially designed for solving many variables of CT & PT ratio
problems & having very convenient performance in measuring active & reactive power. The supplied with micro-base heart and RS-485
communication port. Through RS-485 port to a PC-Tools/HC or push bottom for front board setup can be established.
The unit basically is a 4-1/2 digits design, under an effective limitation for different phases & wires system the maximum defined
reading ranges as following:
- UMWF400-X, UMKF400-X --- 1 phase 2 wires system
- UMWF400-Y, UMKF400-Y --- 3 phase 3 wires system
- UMWF400-Z, UMKF400-Z --- 3 phase 4 wires system
The ratio setting for PT & CT ratio of a digital type, first 3 effective unit selections, fits over 99% application in all system.
With proper unit annunciate & decimal selection, the unit can get a required primary reading without any recalibration process.
The designed specification follows ANSI-IEEE & IEC, VDE standards providing full protection for surge intrusion & unusual input
over, assuring reliable operating.
<Features Summary>