Function 4 - acceleration/deceleration, Function 5 - reversing (back suction), Instruction handbook – Watson-Marlow PD12 IHS User Manual
Page 14

INSTRUCTION HANDBOOK
PD12IHS / PD12IDH
PD12IHS_PD12IDH IH EN 74-115-181 v2.00.doc
Version: 2.00
Page 14 of 19
The fastest filling will be carried out at the highest velocity setting but the velocity should always be
adjusted to suit the characteristics of the product and to reduce splashing or foaming.
Function 4 - Acceleration/deceleration
Value: An integral number.
This function offers a choice of values between 1 and 200 dependent on the tube size and drive;
1 = slowest, 200 = fastest.
Tube Sizes
Max. Velocity
Max. acceleration
0.5 - 0.8 – 1.2 – 1.6
400
100
3.2
400
100
4.8 - 6.0 – 8.0
400
100
Function 5 - Reversing (back suction)
Value: An integral number.
After each filling the dispenser head can be set to perform a small back suction to prevent dripping.
The back suction can be set at values between 0 and 10.
0 = no back suction
10 = maximum back suction
The value has no relation to any other parameters and is solely a number of degrees of a rotor turn.
Consequently, the volume that is sucked back will depend on the tube diameter.
For other program possibilities; see the MC12 manual.