WATSON MARLOW
DuN: the ultimate pump for
production process
The 520DuN, 620DuN and 720DuN offer ultimate control of the range with
everything the SN and UN can do and so much more. With board interface
capabilities the pump can be controlled through a PC, PLC, SCADA or other
plant process controller. A numeric keypad makes manual control truly simple,
too: just type in the flow rate or speed you need.
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Digital network control with RS485
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Comprehensive calibration with a choice of flow units
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Two levels of
PIN-secure process protection
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Twin analog inputs for simultaneous flow adjustment
UN: with analog and
remote control
520UN, 620UN and 720UN bring auto control functionality.
They offer a manual keypad and remote control with analog
speed inputs and status outputs. The pump settings are
configurable and can be password-protected
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Analog
speed control
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Industrial logic
remote control
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Analog
speed feedback
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Choose from three levels of control
SN: when only manual
control is needed
520SN, 620SN and 720SN are the simplest
version of control. Just plug it in and switch on.
They offer low cost of ownership, simple,
accurate metering and one-key keypad access
to all major controls.
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Manual control: 9-key display pad
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Calibration to display flow rate
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MemoDose for easy repetitive discrete
volume dispensing
Printing ink feed
Reduced downtime and spares costs meant that a heavy-duty corrugated box
manufacturer paid for their new Watson-Marlow Bredel 720 series pumps in
less than a year.
Supplying ink to flexographic presses caused air-operated diaphragm pumps
to fail when paper fibers and dried ink particles clogged filters and jammed ball
valves. Every jam costs 90 minutes of production, with an entire in-line
operation stalled. Production also suffered from continual minor problems.
Watson-Marlow Bredel peristaltic pumps have no valves to clog and can
handle suspended solids, so they need no filters. A one-minute tube change at
extended intervals avoids production line stoppages.