Watson-Marlow 504S - Manual (Page 2)

2
Declarations
Declaration of
conformity When this pump unit is used as a stand alone pump it complies with: Machinery Directive
98/37/EC EN60204-1, Low Voltage Directive 73/23/EEC EN61010-1, EMC Directive 89/336/EEC
EN50081-1/EN50082-1.
Declaration of
Incorporation When this pump unit is to be installed into a machine or is to be assembled with other
machines for installations, it must not be put into service until the relevant machinery has been
declared in conformity with the Machinery Directive 98/37/EC EN60204-1.
Responsible person: Dr R Woods, Managing Director, Watson-Marlow Limited, Falmouth, Cornwall TR11 4RU, England.
Telephone 01326 370370, Fax 01326 376009.
Three year warranty
Watson-Marlow Limited warrants, subject to the conditions below, through either Watson-Marlow Limited, its subsidiaries, or its
authorised distributors, to repair or replace free of charge, including labour, any part of this product which fails within three years
of delivery of the product to the end user. Such failure must have occurred because of defect in material or workmanship and not
as a result of operation of the product other than in accordance with the instructions given in this manual.
Conditions of and specific exceptions to the above warranty are:
• Consumable items such as tubing and rollers are excluded.
• Products must be returned by pre-arrangement carriage paid to Watson-Marlow Limited, its subsidiaries, or its authorised
distributor.
• All repairs or modifications must have been made by Watson-Marlow Limited, its subsidiaries, or its authorised distributors
or with the express permission of Watson-Marlow Limited, its subsidiaries, or its authorised distributors.
• Products which have been abused, misused, or subjected to malicious or accidental damage or electrical surge are
excluded.
Warranties purporting to be on behalf of Watson-Marlow Limited made by any person, including representatives of Watson-
Marlow Limited, its subsidiaries, or its distributors, which do not accord with the terms of this warranty shall not be binding upon
Watson-Marlow Limited unless expressly approved in writing by a Director or Manager of Watson-Marlow Limited.
Information for returning pumps
Equipment which has been contaminated with, or exposed to, body fluids, toxic chemicals or any other substance hazardous to
health must be decontaminated before it is returned to Watson-Marlow or its distributor.
A certificate included at the rear of these operating instructions, or signed statement, must be attached to the outside of the
shipping carton.
This certificate is required even if the pump is unused. If the pump has been used, the fluids that have been in contact with the
pump and the cleaning procedure must be specified along with a statement that the equipment has been decontaminated.
Safety
In the interests of safety, this pump and the tubing selected should only be used by competent, suitably trained personnel after
they have read and understood this manual, and considered any hazard involved.
Any person who is involved in the installation or maintenance of this equipment should be fully competent to carry out the work. In
the UK this person should also be familiar with the Health and Safety at Work Act 1974.
There are dangerous voltages (at mains potential) inside the pump. If access is required, isolate
the pump from the mains before removing the cover.
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 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 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,