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Watson-Marlow 620DuN and 620Du User Manual 12
8.1 Pressure capability
0-4 bar higher pressure pumping
This pump’s default running speed is 165rpm. It can be run at any speed up to
265rpm. Please note, however:
The 620RE and 620RE4 rotor warranty is limited to 2 bar from 165rpm
to 265rpm.
A warning is displayed when the user sets the speed above 165rpm.
Note: Applies to 620RE MarkII and 620RE4 MarkII pumpheads only. (The
620LG is not limited).
The pump’s software records the duration of operation above 165rpm.
0-2 bar pressure pumping