The Whirlwind PL-PM1 Power Meter is intended to monitor 3 phase Y power with 3 120 Volt AC legs or single phase with 2 120 Volt AC legs. It is intended to monitor the line side voltage and load current of both portable AC distribution and permanent power distribution systems.
Display Mode Description: - Apply Power. - The power on sequence will illuminate all LEDs on the frontpanel. - The Software Revision is then displayed in thelower right hand display. - Mode A Voltage (blue LED) and currentmeasurements will display.
Mode A Voltage Display (blue LED reference): The TOP row of displays willshow (left to right): - X Leg to Neutralvoltage - Y Leg to Neutral voltage - Z Leg to Neutral voltage - Safety Ground to Neutral voltage
Mode B Voltage Display (red LED reference): The TOP row of displays willshow (left to right): - X-Leg to Y-Leg voltage - Y-leg to Z-Leg voltage - Z-Leg to X-Legvoltage - Frequency
Amperage Display (mode A and B): The bottom row of displays will alwaysshow: - X-Leg current - Y-Legcurrent - Z-Leg current - Neutral Leg current.
Flashing Display Notifications: The Voltage displays will flash when avoltage is out of range. - In Mode A, the X, Y, or Z toNeutral voltage display will flash when the voltage is below 108 Volts orabove 131 Volts. - In Mode B, a voltage display willflash when the voltage is less than 187 Volts or greater than 228 Volts.