The DR6305 Phase Monitor is a multifunctional measurement instrument that provides:
- Measurement of the voltage of 2 phases of a 3 phase power line to determine if all phases are present. The instrument outputs 0/20 mA and 0/-20 mA representing voltage for phase A to B and C to B respectively. One output switches between the 2 currents every 5 seconds. Only one bipolar input on the PLC is required to read voltage levels.
- An optically isolated transistor switch output if voltage drops below preset level.
- An optically isolated transistor switch for the indication of proper phase rotation.
- An LED display to indicate
a. which current is being output
b. phase loss
c. phase reversal
The DR6305 monitors either 240 VAC or 480 VAC, 3 phase and provides DC output current proportional to the voltage of Phase A and Phase C referenced to Phase B. The DC output current alternates every 5 seconds between positive and negative to indicate A to B or C to B voltages respectively. This allows monitoring of 3 phase voltages with a single bipolar analog measuring device.
The voltage level is monitored and levels below a preset level are indicated by an optically isolated transistor switch output. An LED also indicates low voltage.
Phase angle is monitored and phase reversal is indicated by an optically isolated transistor switch output. An LED to indicate phase reversal is also provided.
Internal jumpers allow the product to be used to monitor 240 V or 480 V power systems
Wilkerson Instrument Co. 800-234-1343
