Watson Marlow Pumps 500 Series User manual

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505CA pumphead user manual

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1 Contents
1 Contents 2
2 Certification 3
3 Warranty 6
4 Information for returning pumps 7
5 Safety 8
6 Recommended operating procedures 9
7 Pumphead installation 10
8 Fitting an extension pumphead 11
9 CA cassette loading 12
10 CA cassette removal 13
11 CA cassette adjustment and flow rates 14
12 Care and maintenance 15
13 Pumphead spares 16
14 Dimensions 17
15 Publication history 18
16 List of tables and figures 19
16.1 Figures 19
16.2 Tables 19

2 Certification
Certification documents follow on the next pages.
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
EU DECLARATION OF
INCORPORATION

1. Manufacturer: Watson Marlow Limited, Bickland Water Road, Falmouth, TR11 4RU, UK
2. This declaration of incorporation is issued under the sole responsibility of the manufacturer.
3. Object of the Declaration: 505CA.
4. The object of the declaration described above conforms in part with the relevant Union harmonisation
legislation:
Machinery Directive 2006/42/EC
5. The object of the declaration described above conforms in part with the following directive(s):
EMC Directive 2014/30/EU, RoHS Directive 2011/65/EU
6. We undertake to transmit, in response to a reasoned request by the appropriate national authorities,
relevant information on the partly completed equipment identified above. The method of transmission
shall be by mail or email.
7. The pumphead is incomplete and must not be put into service until the machinery into which it is to be
incorporated has been declared in conformity with the provisions of the Directive(s).
SIGNED FOR ON BEHALF OF:
Watson-Marlow Limited
Falmouth, 31st December 2022
Simon Nicholson, Managing Director,
Watson-MarlowLimited
Watson-Marlow Fluid Technology Solutions
Telephone: [phone]
A Spirax-Sarco Engineering plc company

PERSON AUTHORIZED TO COMPILE THE TECHNICAL
DOCUMENTS:
Johan van den Heuvel
Managing Director
Watson Marlow Bredel B.V.
Sluisstraat 7
Delden
Netherlands
PO Box 47
Telephone: [phone]
1


UK DECLARATION OF
INCORPORATION

1. Manufacturer: Watson Marlow Limited, Bickland Water Road, Falmouth, TR11 4RU, UK
2. This declaration of incorporation is issued under the sole responsibility of the manufacturer.
3. Object of the Declaration: 505CA.
4. The object of the declaration described above conforms in part with the relevant statutory
requirements:
Supply of Machinery (Safety) Regulations 2008, Electromagnetic Compatibility Regulations 2016, The
Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations
2012.
5. We undertake to transmit, in response to a reasoned request by the appropriate national authorities,
relevant information on the partly completed equipment identified above. The method of transmission
shall be by mail or email.
6. The pumphead is incomplete and must not be put into service until the machinery into which it is to be
incorporated has been declared in conformity with the provisions of the Directive(s).
SIGNED FOR ON BEHALF OF:
Watson-Marlow Limited
Falmouth, 31st December 2022
Simon Nicholson, Managing Director, Watson-MarlowLimited
Watson-Marlow Fluid Technology Solutions
Telephone [phone]
A Spirax-Sarco Engineering plc company

1
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3 Warranty
Watson-Marlow Ltd ("Watson-Marlow") warrants this product to be free from defects in materials and workmanship for 1
year from the date of shipment, under normal use and service.
Watson-Marlow's sole responsibility and the customer's exclusive remedy for any claim arising out of the purchase of any
product from Watson-Marlow is, at Watson-Marlow's option: repair, replacement or credit, where applicable.
Unless otherwise agreed in writing, the foregoing warranty is limited to the country in which the product is sold.
No employee, agent or representative of Watson-Marlow has the authority to bind Watson-Marlow to any warranty other
than the foregoing unless in writing and signed by a director of Watson-Marlow. Watson-Marlow makes no warranty of
the fitness of its products for a particular purpose.
In no event:
i. shall the cost of the customer's exclusive remedy exceed the purchase price of the product;
ii. shall Watson-Marlow be liable for any special, indirect, incidental, consequential, or exemplary damages, however
arising, even if Watson-Marlow has been advised of the possibility of such damages.
Watson-Marlow shall not be liable for any loss, damage, or expense directly or indirectly related to or arising out of the
use of its products, including damage or injury caused to other products, machinery, buildings, or property. Watson-
Marlow shall not be liable for consequential damages, including without limitation, lost profits, loss of time,
inconvenience, loss of product pumped, and loss of production.
This warranty does not obligate Watson-Marlow to bear any costs of removal, installation, transportation, or other
charges which may arise in connection with a warranty claim.
Watson-Marlow shall not be responsible for shipping damage of returned items.
3.0.1 Conditions
oProducts must be returned by pre-arrangement to Watson-Marlow, or a Watson-Marlow approved service centre.
oAll repairs or modifications must have been made by Watson-Marlow Ltd, or a Watson-Marlow approved service
centre or with the express permission in writing of Watson-Marlow, signed by a manager or director of Watson-
Marlow.
oAny remote control or system connections must be made in accordance to Watson-Marlow recommendations.
oAll PROFIBUS systems must be installed or certified by a PROFIBUS approved installation engineer.
3.0.2 Exceptions
lConsumable items including tubing and pumping elements are excluded.
lPumphead rollers are excluded.
lRepairs or service necessitated by normal wear and tear or by lack of reasonable and proper maintenance are
excluded.
lProducts which, in the judgement of Watson-Marlow, have been abused, misused, or subject to malicious or
accidental damage or neglect are excluded.
lFailure caused by electrical surge is excluded.
lFailure caused by incorrect or sub-standard system wiring is excluded.
lDamage by chemical attack is excluded.
lAncillaries such as leak detectors are excluded.
lFailure caused by UV light or direct sunlight.
lAny attempt to disassemble a Watson-Marlow product will invalidate the product warranty.
Watson-Marlow reserves the right to amend these terms and conditions at any time.

4 Information for returning pumps
Before returning products, they must be thoroughly cleaned/decontaminated. The declaration
confirming this should be completed and returned to us in advance of the item being shipped.
You are required to complete and return a decontamination declaration stating all fluids that have
been in contact with the equipment being returned to us.
On receipt of the declaration, we will issue a Returns Authorisation Number. We reserve the right to
quarantine or refuse any equipment that is not displaying a Returns Authorisation Number.
Please complete a separate decontamination declaration for each product and use the correct form
that denotes the location you wish to return the equipment to.
A copy of the appropriate decontamination declaration can be downloaded from the Watson-Marlow
website at www.wmfts.com/decon
If you have any queries then please contact your local Watson- Marlow representative for further
assistance at www.wmfts.com/contact.
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5 Safety
In the interests of safety, this pumphead 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.

6 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 pumphead 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.
Tube selection: The chemical compatibility lists published on the Watson-Marlow website are guides.
If in doubt about the compatibility of a tube material and the duty fluid, request a Watson-Marlow tube
sample card for immersion trials.
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7 Pumphead installation
If the pumphead is fitted ignore this section (applicable for all cassette pumpheads).
lMount the 505CA drive adaptor plate to the cased drive using 2 slot-headed screws provided (2)
lApply grease to the drive tongue (1), align to pumphead centre shaft and locate together.
lRemove the planetary gear system cover by pulling gently towards the front of the pumphead.
lMount CA pumphead to drive adaptor plate.
lTighten the socket head retaining screws (4) at each side of the pumphead with a 5mm A/F ball
ended Allen key.
1
2
4
3
Figure 1 - Pumphead installation

8 Fitting an extension pumphead
lRemove the front cover plate (3).
lRemove the end plate using a No.2 Pozi screwdriver on the first pumphead to expose the two
locating pins and drive shaft slot.
lRemove the planetary gear system cover from the extension pumphead.
lFit the extension pumphead onto the two locating pins, ensuring the tongue of its drive shaft aligns
with the pumphead centre shaft.
lTighten the socket head retaining screws on the right and left of the extension pumphead. Fit the
end plate to the last pumphead and replace the covers.
1
2
3
4
Figure 2 - Extension pumphead installation
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9 CA cassette loading
Only use cassettes with manifold tubing.
lPlace the tube into the tube retaining slots without twisting or stretching it, 1.
lLift the cassette release lever 2.
lLoad the cassettes into the pumphead, ensuring that they are engages on the to the cassette
guides at each end, 3.
lEnsure that both retaining clips are engaged and then squeeze the cassette release lever and the
tube retaining lug together until you hear a click, 4.
Figure 3 - CA cassette loading

10 CA cassette removal
lLift the cassette release lever and pull out the cassette.
lWith care, a single cassette can be removed for tube changing without stopping the drive and
disturbing the pumping action of other cassettes.
All cassettes must be in position in the pumphead during normal running,
even if some do not contain tubing. Do not place fingers inside the
pumphead.
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11 CA cassette adjustment and flow
rates
lFlow rates for pumping water at 20 °C with zero suction and delivery pressure in PVC tubing, with
clockwise rotation of the pumphead are published at the back of this manual.
lDedicated occlusion adjustment with a vernier indicator has been incorporated into the cassette.
This is to enable repeatable accurate flow rates despite variations that may be caused by the system
or when pumping fluids other than water.
lThe track geometry has been designed so that when the indicator is at the centre position it is
indicating the normal set-up.
lTo adjust, pull out the adjusting knob and turn. To lock, push back.
lMoving the indicator towards the '+' will increase the track occlusion (reduced roller/track gap)
enabling higher pressures to be obtained without a fall off in flow rate.
lMoving the indicator towards the '-' will reduce the occlusion. Remember that higher the occlusion,
the shorter the tube life.
lThe mechanism also enables small adjustments in the flow rate. This is particularly useful when
using a number of channels where the inter channel flow rate is critical. As a guide only, one
graduation move will vary the flow by approximately 1%.

12 Care and maintenance
When the pumphead needs cleaning, switch the drive off and isolate it from the mains. Remove the
cassettes from the pumphead and remove the tubing. Wash the cassettes in water and mild detergent.
If fluid has been spilled into the pumphead, removal of the pumphead from the drive will make
cleaning easier.
Periodically, inspect all moving parts for wear and ensure all bearings and rollers are free to rotate.
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13 Pumphead spares
Figure 4 - Pumphead spares
Table 1 - Pumphead spares
Number Spare Description
1 DE 0410M End plate
2 DE 0412M Front cover plate
3
DE 0416T
DE 0417T
DE 0418T
DE 0419T
Roller 4 way
Roller 8 way
Roller 12 way
Roller 16 way
4a BB 0038 (2 off) Center shaft bearing
4b BB 0014 (2 off) Center spacer bearing
5 DE 0429T Center gear
6 MN 0983M Roller gear
7 OS 0047 Friction O ring
8 DE 0411M Planetary system gear cover
9 BB 0034 (2 per roller) Roller bearing
10 DE 0407M Cassette guide
11 DEA0080A
DEA0081A
Cassette PVDF (option)
Cassette Acetal (standard)
12 N/A Cassette release lever

14 Dimensions
Table 2 - Dimensions
Pumphead channels Dimension 'X'
4 99
8 148
12 197
16 246
Figure 5 - Dimensions
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15 Publication history
m-505ca-en-01
First published 12/22

16 List of tables and figures
16.1 Figures
Figure 1 - Pumphead installation 10
Figure 2 - Extension pumphead installation 11
Figure 3 - CA cassette loading 12
Figure 4 - Pumphead spares 16
Figure 5 - Dimensions 17
16.2 Tables
Table 1 - Pumphead spares 16
Table 2 - Dimensions 17
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