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,
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.
3
Page 4
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.
4
Page 5
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.
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.
Note: 501RL pumpheads must not be run at speeds greater than 300rpm
6
Page 7
Tubing range
Flow precision depends upon the accuracy and consistency of the tubing. All
Watson-Marlow tubing is formulated, manufactured and quality controlled to
rigorous specifications. Peristaltic pumping performance and tube life will be
affected unless tubing specifically designed for the task is used.
When the pump is switched on, the Main menu will display the options. A flashing
cursor can be moved between the Main menu options using the Step key. When
the cursor is at the required option, press Enter.
DOSE allows you to set your new required dose in ml. You can also enter the
interval time between doses or select the start of a dose by using an external
switch.
CALIBRATE option is selected to allow the actual tubing to be entered into the
microprocessor or if high accuracy is required a calibration dose should be run
following the direction given on the display.
SETUP controls the user and factory settings required for the correct operation
of the system. They include the audible indicator, rotor acceleration, reverse
control at the end of a dose run, language and default settings.
Turn the power switch (on the rear panel of the drive) On (I).
A cursor will indicate the selection. Press Step to move to the required mode
then press Enter.
Press Stop key at any time while the pump is running and the pump will stop.
8
Page 9
DOSE
Pressing Enter at DOSE while in the Main menu will return the message:
5 . 0 0 M L
E N T E RD O S E
Enter the required dose using the key pad numbers.
Any dose from 0.001ML to 9999ML can be set. Up to three decimal places are
allowed, limited to a maximum of 4 characters.
On Enter, display changes to:
_2 .5S E C O N D S
E N T E RI N T E R V A L
Enter the required interval using the key pad numbers.
Enter enters time up to 3445 seconds, with up to one decimal place. The
minimum time is to be 0.1 seconds.
Set to 0 SECONDS to start a single dose with Start or an external switch.
The number of doses will be requested only if a time interval has been entered:
_2 5 D O S E S
Entering new
program
Single dose
command
E N T E RD O S E S
Enter the required number of doses using the key pad numbers
Enter enters number up to 9999.
On Enter the display changes to:
2 1 5 R P M
C C WP R E S SE N T E R
To change the speed enter the required rpm using the numbers on the keypad or
press /\ or \/
/\ / Max sets maximum RPM.
\/ /Max sets minimum RPM.
CW/CCW can be changed by pressing CW/CCW.
Changing the RPM must be confirmed by pressing Enter, after which the RPM
will be displayed.
Pressing Enter calls up confirmation of your selection then requests press Start.
3 5 M L1 6 0 D O S E
C C W2 1 5 R P M
2 . 5S E C SIN T E R V A L
P R E S SS T A R T
9
Start the dose
Page 10
Warning notices
If the dose set would require less than 100 tachometer pulses, these screens will
be displayed:
M I ND O S E6 . 2 5M L
P R E S SM A I NM E N U
If the dose takes less than 5 rotor revolutions, this warning will come up after the
volume is entered and will read:
U S ES M A L L E RT U B E
F O RB E S TR E S U L T S
If a legal dose has been set and calibrated, Start/footswitch starts the sequence.
While dosing, the display reads:
D O SI N G3 5 . 0 0 M L
0 1 2 1D O S E ST OG O
When a dose has been completed and if an interval time has been set, this
screen displays:
End of dose run
On the fly
recalibration
0 1 2 1 D O S E SD O N E
0 0 1 6 S E CW A I T ...
The interval set counts down to 0 after which the next dose runs.
When the dosing run is finished, the display changes to:
0 1 2 1 D O S E SD O N E
P R E S SS T A R T / S T O P
When a single dose has been completed, i.e. starting from a dose with Start or
an external switch, the screen displays:
0 1 2 1 D O S E SD O N E
P R E S SS T A R T / S T O P
Pressing Start starts another dosing run or a single shot.
Pressing Stop calls the Main menu.
Pressing Start at any time while the pump is dosing (whether pumping or
paused), provides an "on-the-fly" recalibration facility by calling:
M LA C H I E V E D
P R E S SE N T E R
Entering exact dose delivered in ml and pressing Enter allows drive to be
recalibrated for new ml per tacho pulse. Knowing the dose required, a new
number of tacho pulses can be calculated to adjust the dose for improved
accuracy. This new calibration will take effect on the start of the next dose after
Enter is pressed.
10
Page 11
If a dose below the safe minimum or a dose more than 25 percent higher or
lower than the set dose is keyed in, it will be assumed an error has been made
and this screen will appear for three seconds:
T O OH I G HO RT O O
L O W- T R YA G AI N
Pressing Stop to interrupt a dose offers:
R E S T A R TD O S I N G
R E C A L I B R A T EE X I T
The MAX key is enabled while this screen is active, and the screen provides a
re-prime method.
Pressing Enter at RESTART DOSING shows the screen to confirm the program
and then requests you press Start. The next dose will then resume as if there
had been no interruption
If you Step to RECALIBRATE then Enter you will be asked to enter the value of
the previous dose.
Entering exact dose delivered in ML and pressing ENTER allows drive to be
recalibrated for new ml per tacho pulse. Knowing the dose required, a new
number of tacho pulses can be calculated to adjust dose for improved accuracy.
If a dose is below the safe minimum a warning will be given OUT OF RANGE!
USE SMALLER TUBE or a dose more than 25 percent higher or lower than the
set dose is keyed in, it will be assumed an error has been made and indicate a
warning:
T O OH I G HO RT O O
Interrupting a
dose
L O W-I G N O R I N G !
Stop is also invoked if a remote footswitch or handswitch is pressed during the
dose run (not during the interval between one dose and the next) not less than 1
second after the switch is pressed to demand the dose.
Pressing Start restarts the dosing run by confirming the program then requesting
you press Start.
11
Page 12
CALIBRATE
In the main menu, Step to CALIBRATE, then press Enter.
Depending upon whether the last calibration was a calibration dose setting in
ml/min or by specifying the pumphead and tubing fitted one of the following
screens will be shown:
5 0 1 R L8 . 0 M M
R E C A L I B R A T E
or
5 0 1 R L9. 8 M L / R V
R E C A L I B R A T E
In both cases press Enter, and the screen will request
C A LI B R A TI O ND O S E
T U B ES I Z E
Step to the option required then press Enter.
Calibration dose
Beep
Ramp
When running a calibration dose it should be run in the duty configuration and
with the duty fluid. The program will run the pump for up to four minutes or you can
Stop it sooner, however the longer you allow it to run the better. The minimum run
time should be 15 seconds or 10 revolutions of the rotor. You can enter the value
of the calibration run in ml. On completion of the procedure the screen will
confirm the calibration figures and will also confirm the selection as well as
displaying the maximum allowable rpm.
5 0 1 R L9 . 9 9 9 M L / R V
M A XI M U M3 0 0 R P M
Calibration is now complete, and the display will return to the main menu.
SETUP
At the Main menu, Step to SETUP, press Enter and a choice will be offered.
Step to the required menu item and press Enter.
You are able to turn the audible signal off using this menu item. The default
condition is on.
Adjusting the ramp value will alter the acceleration/deceleration of the rotor.
There is a separate selection for the start of a dose and at the end of a dose. A
ramp setting of 2 is the factory default where there is no delay of acceleration,
the maximum setting is 5. To select the ramp enter the value on the keypad and
press Enter. The display will confirm your selection for three seconds.
Drip
Language
Default
A gradual start may be useful for applications dispensing sensitive fluids, or to
avoid splashing. A gradual stop can often decrease the dripping after the pump
has stopped.
By adjusting the drip function you can control a reverse rotor direction at the end
of a dose. A 0 value has no reverse, the maximum reverse is 5. To select the
drip enter the value on the keypad. After the selection has been made and
Entered the display will confirm your selection.
This provision is to select the language shown on the display.
By following the prompts, all settings can be restored to the factory defaults.
12
Page 13
Remote
Never apply mains voltage across any pins on the 25D socket as
permanent damage, not covered by warranty, will result. No voltage
should be applied across other pins because permanent damage, not
covered by warranty, may result.
If a Watson-Marlow footswitch or handswitch is used connect a switch as shown
in the diagram. It has the same function as the Start key on the keypad.
Error messages
P R O G SA N DS E T U P
L O S T - P R E S SE N T E R
Indicates a RAM corruption or change of EPROM.
F A U L TC O N D I T I O N !
C H E C KD RI V EN O W !
Start dose
Indicates that either the motor has stalled or there is a loss of tacho pulses.
Care and maintenance
The only scheduled maintenance required for the 505Dz/RL is inspection of the
motor brushes and their replacement before their length is less than 6mm (1/4").
The life of the brushes will depend on the duty of the pump, but is expected to be
at least 10,000 hours at maximum speed.
When the pump needs cleaning, remove the pumphead and use a mild solution
of detergent in water. Do not use strong solvents.
If the gearbox is rebuilt you must use the 15ml of the recommended lubricant,
which is Rocol MP, which is a SAE 30 mineral oil loaded with molybdenum
disulphide to form a soft fluid grease.
13
Page 14
Part 3: 501RL Pumphead
Description
The 501RL pumphead has two spring-loaded working rollers, which
automatically compensate for minor variations in tubing wall thickness, giving
extended tube life.
The 501RL is set during manufacture to accept tubing with wall thicknesses of
between 1.6mm and 2.0mm, and internal diameters of up to 8.0mm. The 501RL
pumphead is equipped with a "tool lockable" guard for increased safety. This
should be locked shut whilst the pump is in use.
A major feature of the 501RL pumphead is the ability to run the pumphead
clockwise for extended tube life, or anti-clockwise to operate against higher
pressures.
The tube clamps of the 501RL are adjustable to four positions to allow varying
tube diameters to be securely held without occluding the tube.
Installation
Any one of three tubing input/output positions can be selected on cased drives.
Select the required position then fit the track over the drive shaft and locating
boss. Tighten the track retaining screw.
After checking that the shaft is clean and degreased slide the rotor on to it.
Rotate the rotor until its guide rollers are alligned flush to the front edge of the
track. The rotor is attached to the shaft by a split collet, and it is important that
the rotor retaining screw is fully tightened to a torque of 3Nm using the largest
screw driver that will fit the screw head. This will prevent the collet slipping when
the pump is being used.
To reposition the track, remove any tubing from the pumphead, and swing out
the crank handle to expose the rotor retaining screw. Turn the screw
anticlockwise one turn to release the collet, and withdraw the rotor from the shaft.
Loosen the track locating screw, and pull the track clear. Rotate the track to its
new position and tighten the track locating screw.
14
Page 15
Tube loading
Switch off the drive before loading the tube. Unlock and open the hinged guard
and swing out the rotor crank handle until it locks into position.
Select the length of tubing required, noting that approximately 240mm is
required for the track system (measured from the outside faces of the tube
clamps).
Fit one end of the tubing into one of the spring loaded clamps, and then, whilst
rotating the rotor with the crank handle, feed the tubing between the rollers and
the track, aligning it within the rotor tube guides. The tubing must lie naturally
against the track and must not be twisted or stretched.
Fit the other end of the tubing into the second spring loaded clamp, ensuring that
the tubing is not slack in the pumphead, since this can reduce tube life.
Close the crank handle and shut and lock the guard.
After the pump has been started, open the downstream clamp for a short time,
so that the tube can find its natural length.
The 501RL pumphead is fitted with four-position tube clamps, to accommodate
various tube diameters, which can be adjusted by pushing in or pulling out the
bars at the top of the upper clamp and the bottom of the lower clamp. Set the
clamps so that the minimum necessary pressure is applied to the tubing.
Roller adjustment
The 501RL has a factory set gap of 2.6mm between the rollers and the track and
is suitable for tubing having wall thicknesses of between 1.6 and 2.0mm.
Adjustment of the gap will be required if tubing having a wall thickness of less
than 1.6mm is required. There is an adjusting screw on each of the two roller
arms, and each of these screws will require adjustment. The correct gap is twice
the wall thickness less twenty percent. Correct adjustment is important: over
occlusion will reduce tube life; under occlusion will reduce pumping efficiency.
To change the gap setting, turn each adjusting screw clockwise to increase the
gap, or anticlockwise to decrease the gap. A full turn changes the gap by 0.8mm.
To restore the original settings of 2.6mm, turn the adjusting screws until both
rollers are just touching the track, then tighten each screw by three and a quarter
turns.
15
Page 16
Care and maintenance
If aggressive liquids are spilled on to the pumphead, the head should be
removed and cleaned using a mild solution of detergent and water. Remove any
tubing from the pumphead, and swing out the crank handle to expose the rotor
retaining screw. Turn the screw anticlockwise one turn to release the collet, and
withdraw the rotor from the shaft. Unscrew the track retaining screw and detach
the track from its spigot.
Check moving parts of the rotor from time to time for freedom of movement.
Lubricate pivot points and rollers occasionally with Teflon lubricating oil. To
effectively lubricate the roller spindle, remove from the pumphead and clean
thoroughly prior to applying Rocol Fomblin grease.
Spares
Guard
MN 01200M For lock
MN 0017M Unlockable
Track assembly
MNA0311A Grey
MNA0137A Black
Rocol Fomblin RT.15 grease
OG 0023
Teflon lubricant
XX 0095
FN 2341
4 off
Hinge
MN0266M
Grey
MN0018M
Black
Tube clamp
assembly
MNA0623A
FN2332
2 off
501RL
Rotor assembly
MNA0143A
Springs
SG 0001, 4 off Standard
SG 0002, 4 off Hard
Main rollers
MN 0011T, 2 off
Follower rollers
MN 0012T 2 off
If in doubt when considering spares for order, do not hesitate to contact WatsonMarlow Technical Support for further information.
16
Page 17
Part 4: Appendices
Reduced voltage operation
If the local voltage is below that specified on page 6, and there is a high
pumphead loading, provision has been made in the design of the drive for a
simple modification to be carried out. This will make the drive suitable for use
with voltages as low as 180 volts when the 220-240V setting is selected, and as
low as 90V when the 100-120V setting is selected.
Please note that the work should be carried out only by qualified personnel and
that there are components at mains voltage inside the drive. If the drive is found
to be damaged after this modification is incorporated and the damage is
considered to have been caused by connecting it to a "normal " voltage, the
warranty will be considered to have been voided.
The modification requires the connector J18 on the control PCB to be reversed.
To locate the terminal, isolate the mains supply then remove the pump cover
which is secured by 4 screws located on the underside of the pump. Lift the
cover to one side
Specification
Supply100-120/220-240V~50/60Hz
(For 80/180V operation see Part 4: Reduced voltage operation)
Nominal maximum rotor speeds300rpm
Power consumption100VA
Shaft torque2.2Nm
Operating temperature range5C to 40C
Storage temperature range-40C to 70C
Weight (including 501RL pumphead)7.7kg (17lbs)
Noise<70dBA at 1m
StandardsIEC 335-1, EN60529 (IP31)
Machinery directive98/37/EC EN60204-1
Low voltage directive73/23/EEC EN61010-1
EMC Directive89/336/EEC EN50081-1/EN50082-1
17
Page 18
Spares
Item #CodeTitleNumber / pump
1SW 0147Switch - On/Off1
2SW 0086Switch - Voltage selector1
3TF 0031Transformer 135VA1
4MN 0787MTacho disc1
5MNA0424ATacho PCB1
6MNA0476ADisplay and harness1
7MN 0549BMembrane switch panel1
8MNA0322AAudible alarm1
9MNA0490AI.C. ROM programmed1
10MNA0473AMotor/gearbox 300rpm1
11BM 0014Motor brush2
12MNA0488AControl PCB1
13UP 0056Plug - 25 WAY bucket1
14UP 0057Plug - 25 WAY shell1
15FS 0003Fuse 1.0A T type1
16US 00453 pin chassis plug2
Watson-Marlow Limited Health and Safety Declaration
1.0
This procedure is a legal requirement in the UK
3.0
and must be used when returning pumps andto Watson-Marlow (or its distributor) to ensure
equipment for service at Watson-Marlow (or itsthat we have the information before receipt of the
distributor).equipment.
2.0
Pumps returned for service must be cleaned.A further copy must be attached to the
You are responsible for their decontamination.outside of the shipping case.
Failure to complete the form or comply with the procedure will cause delays in servicing the equipment.