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Watson-Marlow 620DuN and 620Du User Manual 8
8 Pump specifications
Labels fixed to the rear of the pump contain manufacturer and contact details, prod-
uct reference number, serial number and model details.
The same information is carried on the drive’s backplate, accessible when the 620N
module is removed. The picture below is how a 620Du looks from the box. The num-
ber of connectors varies according to the model.
DuN
DuN, Du
620DuN, IP66 NEMA 4X model and 620Du, IP31 model
This pump can be controlled from the keypad or remotely. It features:
Manual control
Speed adjustment; run and stop; direction control; keypad scaling; “max” key
for rapid priming.
Remote control
The pump can be digitally controlled with a contact closure or logic input signal.
Analogue control
The pump speed can be controlled through an analogue signal input in the
ranges 0-10V, 1-5V or 4-20mA. Scaling can be controlled similarly using
Analogue signal input 2.