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Watson-Marlow 620DuN and 620Du User Manual 39
18.8 Flow units
The pump can display its flow rate in metric (SI) or US (imperial) units of volume or
mass.
In the second screen of the Setup menu select Flow units using the UP and
DOWN keys. Press ENTER to confirm your choice.
The pump displays a screen offering Metric or US. Use the UP and DOWN
keys to choose and press ENTER to confirm your decision.
If you chose Metric, the pump offers a choice of units: ml/min, l/min, l/hr,
g/min or kg/hr. Use the UP and DOWN keys to choose and press ENTER to
confirm your decision.
If you chose US, the pump offers a choice of units: US Gallons/hr, US
Gallons/day, lb/hr or lb/day. Use the UP and DOWN keys to choose and
press ENTER to confirm your decision.
If you chose a volumetric flow rate from either screen, a confirmation screen
appears briefly and the pump displays the second screen of the Setup menu.
If you chose a mass flow rate from either screen, the pump asks for the specif-
ic gravity of the fluid to be pumped. Use the numeric keys to enter a value
between 0.01 and 15.00. Press ENTER to confirm your decision. Press STOP if
you decide to make a different choice of units.
A confirmation screen appears briefly and the pump displays the second screen
of the Setup menu.