Watson-Marlow 720UN and 720SN User Manual
22
UN, SN
13 Switching the pump on
in subsequent power cycles
(if not in auto-restart mode)
Switch on the power supply at the rear of the pump. The pump runs a power-on
test to confirm proper functioning of the memory and hardware. If a fault is
found, an error message is displayed. See 21.1
Error codes
.
The pump displays the Watson-Marlow start-up screen for four seconds
followed bya warning screen for four seconds (an example is shown here), and
then the manual mode main screen.
Note
: Once in the manual mode main screen, keys assume their normal func-
tions - see 15.1
Keypad in menu screens
below. A subsequent press on
START
causes the pump to operate.
Start-up defaults are those in place when the pump was switched off last. Check
that the pump is set to operate as you require it.
The pump is now ready to operate.
All operating parameters may be changed by means of key-presses. See 14
Manual
operation
below.
