WATSON MARLOW
Feature
520DuN
620DuN
720DuN
520UN
620UN
720UN
520SN
620SN
720SN
Manual control
Run/stop; speed adjustment; forward/reverse; max key for rapid priming
and purging; auto-restart; keypad lock, flow calibration in metric units
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Choice of flow rate display; metric and imperial units
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Numeric keypad for entry of speed, flow or PIN
•
Cumulative flow display
720DuN
Remote control
Run/stop direction change; auto/manual mode; leak detector input
(via contact closure or 5V TTL to 24V industrial logic)
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Analog speed control
Software programmable inputs; 0-10V, 1-5V or 4-20mA
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Second analog or keypad key scaling
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Digital network control
Full RS485 network connectivity for process control through PC or PLC
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Process security
Basic security code to protect setup
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PIN-secure process protection: two-level PIN access
•
Pump status outputs
Analog frequency output of pump speed
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Four 24V change-over relay pump status outputs
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4-20mA pump speed feedback
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MemoDose
Accurate, easy, single-shot dispensing
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Remote switch operation of MemoDose
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Calibration
Simple calibration to display the flow rate as well as the rotation speed
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Comprehensive calibration for precise metering. Choice of flow units
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NOW SELECT
YOUR TUBE
PAGES 19-21
Select your pump control features
17
Width
Depth
Height
Weight
520N with 520R pumphead
276mm
10
7
/
8
in
407mm
16in
158mm
6
1
/
4
in
11.48kg
25lb 5oz
620N with 620R pumphead
280mm
11in
448mm
17
5
/
8
in
305mm
12in
20.5kg
45lb 3oz
720N with 720R pumphead
280mm
11in
508mm
20in
305mm
12in
25.0kg
55lb 2oz
Specifications
NEMA 2
NEMA 4X
IP66
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