Fault
Press the P key to return the metering pump to operating status after one of the following faults.
Fault
Cause
Remedy
The metering pump stops
during priming (red LED
display lights up, "Error"
identifier appears and
"FLOW" flashes)
The Flow Control has not
emitted any acknowl‐
edgement pulses due to
air in the liquid end
During priming, remove the metering
monitor cable - the "Flow" function is
disabled during this time.
The metering pump stops
when the Flow Control is
being adjusted (red LED
display lights up, "Error"
identifier appears and
"FLOW" flashes)
The Flow Control has
emitted too few acknowl‐
edgement pulses in suc‐
cession
Press the P key.
The metering pump stops
during operation (red LED
display lights up, "Error"
identifier appears and
"FLOW" flashes)
There is gas in the liquid
end - gaseous feed
chemical
n
Disconnect the metering monitor
cable from the metering pump
n
Bleed the liquid end
n
Insert the metering monitor cable
into the socket on the metering
pump
n
Increase the number of acknowl‐
edgement pulses (see FLOW
menu).
There is air in the liquid
end – the dosing tank is
empty
n
Fill the dosing tank
n
Disconnect the metering monitor
cable from the metering pump
n
Bleed the liquid end
n
Insert the metering monitor cable
into the socket on the metering
pump.
Troubleshooting
22