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Watson-Marlow 620DuN and 620Du User Manual 37
keys. Press ENTER to confirm your choice.
The pump displays a screen allowing you to choose the format of the manual
mode main screen. Use the UP and DOWN keys to choose and press ENTER
to confirm your decision.
If you choose Flowrate and you have not calibrated the pump since switching
it on, a warning screen is displayed for 4 seconds. The warning does not appear
if the display screen formats are cycled again, unless the pump has been
switched off in the mean time.
The pump redisplays the first screen of the Setup menu.
When the pump next runs, the manual mode main screen will display pump
activity in rpm, flowrate (in the units you chose - see 18.8 Flow units) or both,
according to your choice, plus a run time figure. Examples are shown here.
Alternatively ...
In the manual mode main screen, repeatedly press ENTER to cycle the display
between rpm, flowrate (in the units you chose - see 18.8 Flow units) or com-
bined, according to your choice. This cycle operates if the pump is running and
if it is stopped. While the pump is running, you can cycle the display in the
same way by repeatedly pressing START. In both cases, if you have not cali-
brated the pump since switching it on, a warning screen is displayed for 4 sec-
onds before the flowrate screen appears. The warning does not appear if the
display screen formats are cycled again, unless the pump has been switched
off.
The pump redisplays the first screen of the Setup menu.
18.4 Pump I/D
The 620Du pump can be individually controlled under RS232 as one of up to 16
pumps. The 620DuN pump can be individually controlled under RS485 as one of up
to 32 pumps. First the pump must be given its identity number.
In the first screen of the Setup menu select Pump I/D using the UP and
DOWN keys. Press ENTER to confirm your choice.
The pump displays a screen allowing you to change the pump’s identity num-
ber. Use the numeric keys to enter a new number in the display and press
ENTER to confirm your decision. An example is shown here.
The pump displays the first screen of the Setup menu.