Watson-Marlow 720DuN User Manual 1
WATSON-MARLOW BREDEL MANUALS
Watson-Marlow 720DuN pumps
m-720dun-gb-02
Contents
1 Declaration of conformity 3
2 Declaration of incorporation 3
3 Five-year warranty 4
4 When you unpack your pump 5
5 Information for returning pumps 6
6 Peristaltic pumps: an overview 7
7 Safety notes 8
8 Pump specifications 10
8.1 Dimensions 15
9 Good pump installation practice 16
9.1 General recommendations 16
9.2 Do’s and do not’s 17
10 Connecting this product to a
power supply 18
11 Start-up check list 19
12 Switching the pump on for the
first time 20
13 Switching the pump on in
subsequent power cycles
(if not in auto-restart mode) 22
14 Manual operation 23
14.1 Keypad functions 23
14.2 Speed 26
14.3 Direction 26
14.4 Keypad lock 26
14.5 Keypad beep 27
14.6 Manual operation and
remote digital inputs
and outputs 27
14.7 Backlight 27
14.8 Auto-restart 28
15 Main menu 29
15.1 Keypad functions in
menu screens 29
15.2 Main menu entry 29
16 Pin-secure process protection 31
17 Head and tubing calibration 32
18 Setup 36
18.1 Trim 37
18.2 Analogue 38
18.2.1 Input 1: speed 39
18.2.2 Scaling - stroke 41
18.2.3 Trim 41
18.2.4 Exit 41
18.3 Display 42
18.4 Pump I/D 43
18.5 Baud 43
18.6 Stop bits 44
18.7 Xon/Xoff 44
18.8 Flow units 45
18.9 Counters 46
18.10 Outputs 47
18.11 Remote stop 49
18.12 Auto-restart 50
18.13 Set maximum allowed
speed 51
18.14 Set minimum allowed
speed 51
18.15 Scrolling 52
18.16 Date and time 53
18.17 Backlight 53
18.18 ROM 54
18.19 Language 54
18.20 Defaults 55
18.21 Beep 55
18.22 Security code 56
18.23 Exit 57
19 Pin out details 57
20 MemoDose 58
20.1 Changing dosing speed 60
20.2 Footswitch operation and
other remote inputs and
outputs with MemoDose 60
21 Exit 60
22 Automatic control wiring
using the 720N module 61
22.1 720N module removal and
replacement 61
22.2 Wiring up 62
22.3 Speed: analogue input 65
22.4 Scaling: analogue input 66
22.5 Speed: analogue output 67
22.6 Tachometer frequency
output 67
22.7 Run/stop input 68
22.8 Direction input 68
22.9 Auto / manual toggle
input 69
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