Watson-Marlow 313F - Manual (Page 3)

3
Recommended operating procedures
DO keep delivery and suction lines as short as possible using a minimum number of swept bends.
DO use suction and delivery pipelines with a bore equal to or larger than the bore of the tube fitted in the pumphead.
When pumping viscous fluids, the losses caused by increased friction can be overcome by using pipe runs with a cross
sectional area several times greater than the pumping element.
DO fit an extra length of pump tube in the system to enable tube transfer. This will extend tube life and minimise the
downtime of the pumping circuit.
DO keep the track and rollers clean.
The self-priming nature of peristaltic pumps means valves are not required Any valves fitted must cause no restriction to
flow in the pumping circuit.
When using Marprene tubing, after the first 30 minutes of running, re-tension the tube in the pumphead by releasing
the tube clamp on the delivery side a little and pulling the tube tight. This is to counteract the normal stretching that
occurs with Marprene which can go unnoticed and result in poor tube life.
Tube selection The chemical compatibility list published in the Watson-Marlow catalogue is only a guide. If in doubt
about the compatibility of a tube material and the duty fluid, request a tube sample card for immersion trials.
Installation
The 313F, 313S and 313U are suitable for single phase mains electricity supplies only.
To ensure correct lubrication of the gearbox the pump should be run only while its feet are standing on a horizontal
surface. The pump should be positioned to allow a free flow of air around it.
Set the voltage selector to either 120V for 100-120V 50/60Hz supplies or 240V for 220-240V 50/60Hz supplies.
A mains cable fitted with a moulded plug is supplied with the pump. The wires are colour coded in accordance with the
following code:
•
220-240V: Live - Brown; Neutral - Blue; Earth - Green/Yellow.
•
100-120V: Live - Black; Neutral - White; Earth - Green.
Troubleshooting
Should the pump fail to operate, make the following checks to determine whether or not servicing is required.
•
Check that the power switch is on.
•
Check the mains supply is available at the pump.
•
Check the voltage selector switch is in the correct position. l
•
Check the fuse in the mains socket.
•
Check that the pump is not stalled by incorrect fitting of tubing.
313F/D manual operation
•
Set the voltage selector to either 120V for 100-120V 50/60Hz single phase AC supplies or 240V for 220-240V 50/60Hz
single phase AC supplies.
•
Set the pump to the desired high or low speed setting using the horizontal slider switch on the rear panel.
•
Stop Stop the pump by turning the Forward/Off/Reverse switch to its central Off position.
313S/D, 313U/D manual operation
•
Set the voltage selector to either 120V for 100-120V 50/60Hz single phase AC supplies or 240V for 220-240V 50/60Hz
single phase AC supplies.
•
Set the pump to the desired speed output using the front panel potentiometer.
•
Turn the pump on using the mains power switch on the rear panel.
•
Start up direction Start the pump by turning the Forward/Off/Reverse switch to the required direction of rotation.
•
Stop Stop the pump by turning the Forward/Off/Reverse switch to its central Off position.
Note: When the pump is running clockwise in manual operation and is switched to standby, it will come to a dead stop.
When running counter clockwise it will freewheel to a stop. Any application requiring braking should have the pump set
up for clockwise running.