Progressive Industries EMS-PT50C - Manual (Page 4)

Operating Instructions
1. Plug into AC power.
2. Digital display will read 888 for one second then begin
scrolling the voltage, amps, line frequency, and error
code(s). In addition, the time delay light will flash in
the bottom right corner of the display.
3. The EMS will read L-1, and then give you a 3-digit
number which is your line voltage. Next, it will give
you an “OA” reading. This is the amp reading;
however, it will read zero until the time delay is
complete. Then you will notice a number between 0
and 35. That number indicates how many amps the RV
is drawing. Next, the display will read L-2 and indicate
the voltage and amps for Line 2. Then it will read 60H
and this number should remain fairly consistent;
however, it may read plus or minus one or two. Lastly,
you will notice the E code. E-0 is normal. Only when
an E-0 and E-10 is present will the delay light flash and
ultimately bring power in to the RV. Refer to your
Error Code Chart that is provided or see next page for
details.
4. Verify that Error Code E-0 is displayed.
5. Set up is complete.
6. The EMS has a 136-second time delay before you will
receive power into your RV.
IMPORTANT:
The display will only read voltages between
78 volts and 255 volts.
Note
: If the wiring reads anything different than correct, the
EMS will not turn on and we recommend moving to a different
source of AC power, or you use your generator power. Also, if
power is below 104 volts or above 132 volts, the EMS will not
turn on, and we recommend using your generator power.