JLD404W Power meter measuring incorrect voltage
Posted: Wed Apr 21, 2010 2:56 pm
I recently purchased 3 of these DC Watt meters. I have connected them as described in the manual and they appear to be operating. The Voltage reading however is 5X what it actually is. @1V the meter reads 4.8V and @ 5V the meter reads 24.7V. The Ampere reading is accurate. Is there a way to calibrate this meter? I have opened the case searching for some trim pots and see none.
Thanks in advance for the help.
Thanks in advance for the help.