Watson-Marlow 120U/D1 - Manual (Page 15)

Watson-Marlow 120U IP31 pumps: operating instructions 1
WATSON-MARLOW MANUALS
Watson-Marlow 120U cased pumps
Section 2 of 3: Operating manual
m-120u-ip31-gb-01 Original instructions
Contents
2.1 Pump specifications 2
2.2 Good pump installation practice 3
2.3 Switching the pump on 3
2.4 Manual operation 4
2.4.1 Keypad functions in
manual mode
4
2.4.2 Start and stop 4
2.4.3 Increase and decrease
pump speed
4
2.4.4 Change direction of
rotation
5
2.4.5 Prime the pump 5
2.4.6 Run the pump at
maximum speed
5
2.4.7 Run the pump at
minimum speed
5
2.4.8 Switch to automatic
control
5
2.4.9 Auto-start 5
2.4.10 Keypad beep 5
2.4.11 ROM 5
2.4.12 Keypad lock 6
2.4.13 Defaults 6
2.4.14 Set maximum allowed
speed
6
2.5 Remote control wiring 7
2.6 Remote/automatic control and
operation 9
2.6.1 Remote stop/start
when AUTO has not
been pressed
9
2.6.2 Direction 9
2.6.3 DC tacho output 10
2.6.4 Digital alarm output 10
2.6.5 Supply voltages 10
2.6.6 How to get into auto
speed operation
11
2.6.7 Remote stop/start
when AUTO has been
pressed
12
2.6.8 Speed: analogue input 12
2.6.9 Speed: remote
potentiometer input
13
2.6.10 Set maximum allowed
speed
13
2.7 Troubleshooting 14
2.7.1 Error codes 14