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Watson-Marlow 620DuN and 620Du User Manual 34
Input 1 - speed allows the user to tell the pump which signal type he will apply to
Analogue 1, or to choose the program option. If he selects Program from the sub-
sequent menu, the user can choose his input type and tell the pump the speeds at
which to operate on receiving a low or high process control signal. See 18.2.1 Input
1 - speed.
Scaling - stroke allows the user to disable scaling control, or if he wishes to enable
scaling, to tell the pump which signal type he will apply to Analogue 2, or to choose
the program option. If he selects Program from the subsequent menu, the user can
choose his input type and tell the pump the speed proportion at which to operate on
receiving a low or high process control signal. See 18.2.1 Input 1 - speed.
Trim displays the Trim menu, described above. See 18.1 Trim.
Exit returns the user to the first section of the Setup menu. See 18 Setup.
18.2.1 Input 1: speed
Select Input 1 - speed using the UP or DOWN keys and press ENTER to con-
firm your choice.
The pump offers three further choices: 4-20mA, 0-10V and 1-5V. Use the UP
or DOWN keys to make a selection and press ENTER to confirm your decision.
The pump configures the hardware and factory-set response data and briefly
displays a confirmation screen. The user is returned to the Analogue setup dis-
play. Example figures are shown here.
Alternatively the user can select Program to configure the pump to respond in
a user-programmed way to any process signal range within 4-20mA, 0-10V or
1-5V.