Watson-Marlow 505Dz User Manual

505Dz

PB0177-gb-01.pdf

Contents

Declarations ........................................................... Page 2

Three year warranty ........................................................... Page 3

Information for returning pumps ........................................................... Page 3

Safety ........................................................... Page 3

Recommended Procedures ........................................................... Page 4

Part 1: 505Dz Drive

Siting ........................................................... Page 5

Electrical connection ........................................................... Page 5

Accuracy and dose time guidelines ......................................................... Page 5

Flow rates ........................................................... Page 6

Tubing range ........................................................... Page 7

Accessories ........................................................... Page 7

Part 2: Operation

Overview ........................................................... Page 8

DOSE ........................................................... Page 9

CALIBRATE ........................................................ Page 12

SETUP ........................................................ Page 12

Remote ........................................................ Page 13

Error messages ........................................................ Page 13

Care and maintenance ........................................................ Page 13

Part 3: 501RL Pumphead

Description ........................................................ Page 14

Installation ........................................................ Page 14

Tube loading ........................................................ Page 15

Roller adjustment ........................................................ Page 15

Care and maintenance ........................................................ Page 16

Spares ........................................................ Page 16

Part 4: Appendices

Reduced voltage operation ........................................................ Page 17

Specification ........................................................ Page 17

Spares ........................................................ Page 18

Outline drawing ........................................................ Page 19

Decontamination certificate ........................................................ Page 20

Declaration of
conformity

Declaration of
incorporation

Declarations

When the 505Dz/RL pump is used as a stand alone unit 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
When the 505Dz/RL pump, is to be installed into machines or is to be

assembled with other machines for installations, it must not be put into service
until the relevant machinery into which it is to be incorporated has been declared
in conformity with the provisions of the Machinery Directive 98/37/EC EN60204-

1.
Responsible person: Dr R Woods, Managing Director, Watson-Marlow Limited,

Falmouth, Cornwall, TR11 4RU, England.
Telephone [phone] Fax [phone]

2

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 rollers and tubing 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 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

In the current situation of heightened concern over the handling of hazardous
materials, any 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 (a suitable blank form is 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, these pumpheads 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.

There are dangerous voltages (at mains potential) inside the unit. If access is
required, isolate the pump from the mains before removing the cover.

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Recommended Procedures

DO keep delivery and suction lines as short as possible.
DO use the minimum number of bends in rigid pipe runs. If there must be a bend,

use a swept bend and not a tight elbow.
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, particularly for materials
of a viscous nature. Silicone and Marprene 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 use the largest possible bore tube running at slow speed for the longest tube
life.

DO fit an extra length of pump tube in the system so that you can move the tube
through the pumphead occasionally, without needing to break the pumping
circuit. This is particularly useful for extending tube life in long running sterile
applications.

DO keep the track and rollers clean, and ensure that the rollers are free.
DO NOT fit valves in the suction or delivery lines without considering that

peristaltic pumps are self priming and will hold their prime up to several metres,
so there may be no need for non-return or foot valves, nor for the loading valves
required on many other kinds of pumps.

Any valves fitted must cause no restriction. If electrically actuated valves are
fitted, they should be interlocked so that the pump will only run when the valves
are open. Fit an automatic by-pass if manual valves are installed.

When using Marprene or Bioprene 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 and Bioprene, which can go unnoticed and
result in reduced 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. Remember
the sample will be fully immersed, but the fluid when in use will only be in contact
with the inside of the tube. If the material swells but does not lose its strength it
could be worth considering.

Viscous dispensing To overcome the common problems of reduced accuracy
and dripping delivery pipes, the suction and delivery lines should be kept as
short as possible. Use larger bore transmission tubing than that in the pumphead
to keep the friction losses to a minimum. Improvement will be noticed if rigid or
semi-rigid pipe is used on the delivery side. The rigid tube is effective in
reducing over-run because it does not expand during pumping.

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Part 1: 505Dz Drive

Siting

To ensure correct lubrication of the gear box it is important to run the pump only
while its feet are standing on a horizontal surface.

It should be situated where there is free air to circulate around the pump and
where the tubing is allowed to enter the tube clamps without kinking.

The 505Dz can be operated at ambient temperatures from 5C to 40C. Storage
temperatures from -40C to 70C are permissible, but allow time for
acclimatisation before use.

Electrical connection

The 505Dz operates on single phase mains electricity supplies only. It is fitted
with a mains voltage selector which must be set to either 120V for 100-120V
50/60Hz supplies or 240V for 220-240V~50/60Hz supplies. For sites where the
local voltage is below this specification and the pumphead loading is high, refer
to Part 4: Reduced voltage operation.

A mains cable fitted with a moulded plug is supplied with the pump, but if another
plug is to be fitted, the colour coding of the mains lead must be observed. The
mains cable for 220-240V supplies is coded so that the live lead is coloured
brown, the neutral lead is coloured blue, and the earth lead is coloured green and
yellow. The mains cable for 100-120V supplies is coded so that the live lead is
coloured black, the neutral lead is coloured white, and the earth lead is coloured
green.

Installation

Should the pump fail to operate, check that mains electricity is available at the
unit, that the voltage selector switch is in the correct position, that the fuse is
intact and that the pump is not stalled by incorrect fitting of tubing. If the pump is
to be used under manual control and fails to operate, check that the manual
mode has been selected. If the pump is under auto control check that there is a
signal, the connections are correct and that the pump is correctly set up.

There are dangerous voltages (at mains potential) inside the unit. If
access is required, isolate the pump from the mains before removing the
cover.

Accuracy and dose time guidelines

The following gives guidelines to achieve the optimum accuracy with the dose
time.

Accuracy required +/-0.5%

Dose ml 10 25 50 100 250
Tubing i.d. mm 1.6 3.2 3.2 4.8 6.4
Approx dose time. sec 4.8 2.7 5.4 4.9 8.1

Accuracy required +/-1%
Dose ml 10 25 50 100 250

Failure to
operate

Tubing i.d. mm 3.2 3.2 4.8 6.4 8.0
Approx dose time. sec 1.1 2.7 2.5 3.2 5.0

Accuracy required +/-2%

Dose ml 10 25 50 100 250
Tubing i.d. mm 3.2 4.8 6.4 8.0 8.0
Approx dose time. sec 1.1 1.3 1.5 2.0 5.0

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For higher accuracy, use smaller bore tubing. However this will also increase
filling time.

For faster filling time increase tubing bore size. However this will decrease
accuracy.

All tubing will show a gradual drift in the dosed volume, which can be corrected
by recalibration. For minimal drift use Silicone tubing (if chemically compatible).

The results seen on page 6 were obtained using Silicone tubing pumping water
at zero suction and delivery pressure, with a 501RL pumphead at 300rpm over
at least 50 doses. It is intended as a guide only.

It is advised to carry out trials under operating conditions to determine a
satisfactory compromise between dose time and accuracy. The important
factors are suction and delivery pressures, temperature, and fluid viscosity.

Flow rates

The 505Dz is fitted with the 501RL pumphead. The flow rates given below were
obtained using silicone tubing, with the pumphead rotating clockwise, pumping
water at 20C with zero suction and delivery pressures (unless otherwise stated).
Where an application is critical, the flow rate should be determined under
operating conditions. The important factors affecting flow rates are delivery
pressures, temperature, and fluid viscosity. Tube life will be reduced when
pumping against pressure.

501RL flow rates (ml/min)

Tube # 112 13 14 16 25 17 18
Tube bore 0.5mm 0.8mm 1.6mm 3.2mm 4.8mm 6.4mm 8.0mm

1/50" 1/32" 1/16" 1/8" 3/16" 1/4" 5/16"

300 rpm 12.5 37 128 560 1210 1900 3000

Note: 501RL pumpheads must not be run at speeds greater than 300rpm

6