Progressive Industries EMS-HW50C - Manual (Page 7)

Operating Instructions
1. Plug into A/C power.
2. Digital display will read 888 for one second and then begin
scrolling the voltage, amps, line frequency and error code, if any.
In addition, the time delay light will flash while the EMS is going
through its countdown and will stop when the unit engages.
(Bottom right hand corner.)
3. You may notice when first plugging in that the display may read
E-9. Don’t worry about this, it only means that the display has not
received data from the computer yet. By the next time through it
should read E-0 if the A/C power is normal.
4. The digital display will read L-1, and then give you a three digit
number which is your Line 1 voltage, then 0A which is Line 1
current (amps). Then L-2 and a three digit number which is Line
2 voltage, then OA which is Line 2 current (amps). Current will
read zero until the time delay is complete. (136 seconds or 15
seconds, depending on your settings). Next, you will notice a
number between 0 and 35. This number indicates how many
amps the RV is drawing on each line. Next you will notice 60H
and this is your line frequency. That number should remain fairly
consistent, however, it may read plus/minus one or two. Lastly,
you will notice the E code. E-0 is normal and only if E-0 or E-10
is present will the delay light flash and allow power to the RV.
Refer to your Error Code chart that was provided or see Error
Code chart for further details.
5. Verify that Error Code E0 is displayed and set up is now
complete.
IMPORTANT:
The display will only read voltages between
approximately 78 volts and 255 volts.
NOTE
: If the wiring reads anything different than correct, the EMS will
not turn on and we recommend you move to a different source of AC
power or 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.