Watson Marlow Pumps 504Du, Руководство пользователя

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DO
run at a slow speed when pumping viscous fluids. When using the 501RL pumphead, a 4.8 or 6.4mm bore tube with a 1.6mm wall will
give best results. Tube diameter smaller than this will generate a high -friction pressure loss, so reducing the flow. Tube with a larger bore
will not have sufficient strength to restitute. Flooded suction will enhance pumping performance in all cases, particularly for materials of
a viscous nature. Silicone, Marprene and Neoprene tubing is available with a 2.4mm wall thickness for speeds up to 200rpm. (The rotor
will require re-setting to a roller/track gap of 3.8mm).
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 504Du is 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.
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Remove the small transparent plate on the rear panel to gain access to the voltage selector and terminal block.
●
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.
●
Route the mains supply cable through the entry point to the right of the recess, and couple the cable to the terminal block as shown on
the rear panel.
●
There are two alternative connectors. One accepts 20mm rigid or flexible conduit, and the other accepts three core 0.75 square millimetre
PVC sheathed mains cable (via the screwed adapter supplied) so that a mains lead can be used.
●
Ensure that the mains lead is securely retained in the strain relief gland so that IP55 ingress protection is maintained.
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Securely replace the transparent plate and the gasket over the recess.
1
Strain relief gland SL 0020
2
Adaptor MR0678T
3
Washer GR 0019
4
M20 Conduit thread for direct conduit connection, through back panel
Ingress protection standard will be compromised if the transparent plate is not replaced.
Rear panel recess
The pump rear panel recess houses the following:
1
Fuse holder
2
Terminal block
3
Voltage selection switch