Watson-Marlow 120 IP31 pumps 1
WATSON-MARLOW MANUALS
Watson-Marlow 120 cased pumps
120F/DV
m-120coversheet-F-114DV-gb-01 Original instructions
Contents
1 General information
2 Operating manual
3 114DV pumphead
Watson-Marlow 120 IP31 pumps: general information 1
WATSON-MARLOW MANUALS
Watson-Marlow 120 cased pumps
Section 1 of 3: general information
m-120general-gb-01 Original instructions
Contents
1.1 Declaration of conformity 2
1.2 Declaration of incorporation 2
1.3 Three-year warranty 2
1.4 When you unpack your pump 3
1.5 Information for returning pumps 3
1.6 Peristaltic pumps - an overview 4
1.7 Safety notes and standards 5
1.8 Good pump installation practice 7
1.8.1 General
recommendations 7
1.8.2 Do’s and do not’s 8
1.9 Power supply 9
1.10 Dimensions 10
1.11 Start-up check list 11
1.12 Drive maintenance 11
1.13 Drive spares 11
1.14 Decontamination certificate 12
Watson-Marlow 120 IP31 pumps: general information 2
1.1 Declaration of
conformity
This declaration was issued for WatsonMarlow 120 pumps on April 28, 2010.
When this pump unit is used as a standalone pump it complies with: Machinery
Directive 2006/42/EC, EMC Directive
2004/108/EC.
This pump is ETL listed: ETL control number 3050250. Cert to CAN/CSA std C22.2
No 61010-1. Conforms to UL 61010-1.
1.2 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 2006/42/EC.
Responsible person: David Cole, Managing Director,
Watson-Marlow Limited, Falmouth, Cornwall TR11
4RU, England. Telephone +44 (0) 1326 370370 Fax
+44 (0) 1326 376009.
The information in this user guide is believed to be
correct at the time of publication. However, WatsonMarlow Limited accepts no liability for errors or
omissions. Watson-Marlow has a policy of continuous product improvement, and reserves the right to
alter specifications without notice. This manual is
intended for use only with the pump it was issued
with. Earlier or later models may differ.
The most up-to-date manuals appear on the
Watson-Marlow website:
http://www.wmpg.com
1.3 Three-year
warranty
Watson-Marlow Limited (“Watson-Marlow”) warrants, subject to the conditions and exceptions
below, through either Watson-Marlow, its subsidiaries, or its authorised distributors, to repair or
replace free of charge, any part of the pump drive
which fails within three years of the day of manufacture of the product. 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 normal operation as defined in this
pump manual.
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, and Watson-Marlow shall not
be liable for consequential damages, including,
without limitation, lost profits, loss of time, inconvenience, loss of product being pumped, and loss of
production. This warranty does not obligate WatsonMarlow to bear any costs of removal, installation,
transportation, or other charges which may arise in
connection with a warranty claim.
Conditions of and specific exceptions to the above
warranty are:
Conditions
Products must be returned by pre-arrangement,
carriage-paid, to Watson-Marlow, or a WatsonMarlow approved service centre.
All repairs or modifications must have been
made by Watson-Marlow Limited, or a WatsonMarlow approved service centre or with the
express permission of Watson-Marlow.
Warranties purporting to be on behalf of
Watson-Marlow made by any person, including
representatives of Watson-Marlow, its subsidiaries, or its distributors, which do not accord
with the terms of this warranty shall not be
binding upon Watson-Marlow unless expressly
approved in writing by a Director or Manager of
Watson-Marlow.
Watson-Marlow 120 IP31 pumps: general information 3
Exceptions
The warranty shall not apply to repairs or
service necessitated by normal wear and tear
or for lack of reasonable and proper
maintenance.
Tubing, a consumable item, is excluded.
Products which, in the judgment of Watson-
Marlow, have been abused, misused, or subjected to malicious or accidental damage or
neglect are excluded.
The 120F is excluded from all warranty when
pumping above 1 bar. The 120U and the 120S
are excluded from all warranty when pumping
above 2 bar.
Electrical surge as a cause of failure is
excluded.
Chemical attack is excluded
All pumphead rollers are excluded.
Ancillaries are excluded.
Pumpheads used with this pump drive carry their
own warranty.
1.4 When you unpack
your pump
Unpack all parts carefully, retaining the packaging
until you are sure all components are present and in
good order. Check against the components supplied
list.
Packaging disposal
Dispose of packaging materials safely, and in accordance with regulations in your area. The outer
carton is made of corrugated cardboard and can be
recycled.
Inspection
Check that all components are present. Inspect
components for damage in transit. If anything is
missing or damaged, contact your distributor immediately.
Components supplied
Dedicated 120F, 120S or 120U pump drive
fitted with a 114DV pumphead, 102R pumphead, 400D1, 400DM2 or 400DM3 pumphead
The designated external DC power supply unit
for your pump with plug adaptors
PC-readable CDROM containing these operating
instructions
Quick Start printed manual
Note: Some versions of this product will include
components different from those listed above.
Check against your purchase order.
Storage
This product has an extended shelf life. However,
care should be taken after storage to ensure that all
parts function correctly. Long-term storage is not
recommended for peristaltic pump tubing. Please
observe the storage recommendations and use-by
dates which apply to tubing you may wish to bring
into service after storage.
1.5 Information for
returning pumps
If you wish to return a pump for service or other
reasons, contact Watson-Marlow or your distributor,
quote your pump’s serial number, and ask for a
returns number. Include this number when you ship
the pump.
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 WatsonMarlow 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. See 1.14
Decontamination certificate.
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.
Watson-Marlow 120 IP31 pumps: general information 4
1.6 Peristaltic pumps an overview
Peristaltic pumps are the simplest possible pump,
with no valves, seals or glands to clog or corrode.
The fluid contacts only the bore of a tube, eliminating the risk of the pump contaminating the fluid, or
the fluid contaminating the pump. Peristaltic pumps
can operate dry without risk.
How they work
A compressible tube is squeezed between a roller
and a track on an arc of a circle, creating a seal at
the point of contact. As the roller advances along
the tube, the seal also advances. After the roller has
passed, the tube returns to its original shape, creating a partial vacuum which is filled by fluid drawn
from the inlet port.
Before the roller reaches the end of the track, a second roller compresses the tube at the start of the
track, isolating a packet of fluid between the compression points. As the first roller leaves the track,
the second continues to advance, expelling the
packet of fluid through the pump’s discharge port.
At the same time, a new partial vacuum is created
behind the second roller into which more fluid is
drawn from the inlet port.
Backflow and siphoning do not occur, and the pump
effectively seals the tube when it is inactive. No
valves are needed.
The principle may be demonstrated by squeezing a
soft tube between thumb and finger and sliding it
along: fluid is expelled from one end of the tube
while more is drawn in at the other.
Suitable applications
Peristaltic pumping is ideal for most fluids, including
viscous, shear-sensitive, corrosive and abrasive fluids, and those containing suspended solids. They
are especially useful for pumping operations where
hygiene is important.
Peristaltic pumps operate on the positive displacement principle. They are particularly suitable for
metering, dosing and dispensing applications.
Pumps are easy to install, simple to operate and
inexpensive to maintain.
Watson-Marlow 120 IP31 pumps: general information 5
This symbol, used on the
pump and in this manual,
means: Caution, refer to
accompanying documents.
This symbol, used on the
pump and in this manual,
means: Do not allow fingers
to contact moving parts.
Fundamental work
with regard to transportation, installation,
starting-up, maintenance and repair should be perfor med
by qualified personnel only. The unit
must be isolated from mains power
while work is being carried out. The
motor must be secured against accidental start-up.
1.7 Safety notes and
standards
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. If the pump is used in a manner not specified by Watson-Marlow Ltd, the protection provided
by the pump may be impaired.
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 moving parts inside the pumphead.
Before opening the pumphead guard or track,
ensure that the following safety directions are
followed:
Ensure that the pump is isolated from the
mains power.
Ensure that there is no pressure in the pipeline.
If a tube failure has occurred, ensure that any
fluid in the pumphead has been allowed to
drain to a suitable vessel, container or drain.
Ensure that protective clothing and eye protec-
tion are worn if non-flammable hazardous fluids
are pumped.
Primary operator protection from rotating parts
of the pump is provided by the pumphead safeguard. Note that safeguards differ, depending
on the type of pumphead. See the pumphead
section of this manual.
This pump must be used only for its intended
purpose.
The pump must be accessible at all times to facilitate operation and maintenance. Access points must
not be obstructed or blocked. Do not fit any devices
to the drive unit other than those tested and
approved by Watson-Marlow. Doing so could lead to
injury to persons or damage to property for which
no liability can be accepted.
This product does not comply
with the ATEX directive and
must not be used in explosive
atmospheres.
Watson-Marlow 120 IP31 pumps: general information 6
If hazardous fluids are to be pumped, safety procedures specific to the particular fluid and application
must be put in place to protect against injury to persons.
The exterior surfaces of the pump may get warm
during operation. Do not take hold of the pump
while it is running.
The exterior surfaces of the external DC power supply may get warm during operation. To be safe, let
it cool after use before handling it.
For safety, the pump must not be run without a
pumphead fitted.
Electrical safety
The power supply is Class II insulated: double
insulated with no earth connection.
The pump is Class III: safety extra-low voltage
(SELV).
Installation category (over-voltage category): II
Pump standards
EC
harmonised
standards
Safety of machinery—electrical equipment of machines: BS EN 60204-1
Safety requirements for electrical equipment for measurement, control and labora-
tory use: IEC/EN/UL 61010-1 incorporating A2 Category 2, Pollution degree 2
Degrees of protection provided by enclosures (IP code):
BS EN 60529 amendments 1 and 2
Conducted emissions: BS EN 55011 A1 and A2 Class A, called by BS EN61000-6-4
Radiated emissions: BS EN 55011 A1 and A2 Class A, called by BS EN61000-6-4
Electrostatic discharge: BS EN 61000-4-2 Criteria C
Radiated RF immunity: BS EN 61000-4-3 A1 and A2, called by BS EN 61000-6-2
Fast transient burst:
BS EN 61000-4-4 A1 and A2, Level 3 (2kV), called by BS EN 61000-6-2
Surge immunity: BS EN 61000-4-5 A1 and A2, called by BS EN 61000-6-2
Conducted RF immunity: BS EN 61000-4-6, called by BS EN 61000-6-2
Pumps and pump units for liquids—common safety requirements: BS EN 809
Other
standards
CAN/CSA-C22.2 No 61010-1
Conducted emissions FCC 47CFR, Part 15.107
Radiated emissions FCC 47CFR, Part 15
Power supply standards
Safety standards
UL 60950-1
CSA-C22.2
TUV EN 60950-1
EMC
EN 55022 Class B, FCC part 15/CIS PR 22 Class B
EN 61000-3-2, 3
EN61000-4-2, 3, 4, 5, 6, 8 and 11 Criteria A
Watson-Marlow 120 IP31 pumps: general information 7
Power supply specifications
Insulation category Class II: double insulated, no earth
Mains voltage/frequency
90-264VAC, 47-63Hz, 1ph
Mains current 0.7A @ 100VAC; 0.4A @ 230VAC
Output voltage 24VDC
Output power 24W @ 30C; 18W @ 40C
Protection Hiccup mode: recovers automatically after fault removed
Overload protection 110%-200% of rated output power
Working temperature -10C to 50C, 14F to 122F
Operating humidity 20% to 90% RH, non-condensing
Over-voltage 115% to 135%
Note: Pump specifications are included in Section 2
of these instructions.
1.8 Good pump
installation practice
1.8.1 General
recommendations
Position
The 120 pump must be mounted in the upright position and not inverted or placed on its rear face.
A correctly engineered installation will promote long
tube life. Site the pump on a flat, horizontal, rigid
surface, free from excessive vibration, to ensure
correct lubrication of the gearbox. Allow a flow of air
around the pump to ensure that heat can be dissipated. Ensure that the temperature around the
pump does not exceed 40C.
It is possible to stack only one other 120 pump on
top of this pump. The case’s third row of feet ensure
ventilation between pumps and allow the top pump
to be set back a little to give clear access to the
lower pump’s keypad. You can place other equipment on the pump’s upper surface as long as the
ambient temperature does not exceed 40C.
Emergency disconnection
The pump's external DC power supply is the disconnecting device, which must be readily identifiable
and easily reached, for isolating the motor drive
from the mains supply. Note: There may be a slight
delay after isolating the pump before the pump
stops.
Watson-Marlow 120 IP31 pumps: general information 8
Valves
Peristaltic pumps are self-priming and self-sealing
against backflow. No valves are required in inlet or
discharge lines. Valves in the process flow must be
opened before the pump operates. Users are
advised to fit a pressure relief device between the
pump and any valve on the discharge side of the
pump to protect against damage caused by accidental operation with the discharge valve closed.
Pressure advice
In most circumstances,
rotor and tube life are
maximised if the pumphead is run slowly, particularly when pumping at
high pressure. Do not
exceed the pressures
shown here.
1.8.2 Do’s and do not’s
Do not build a pump into a tight location without
adequate airflow around the pump.
Do not strap together the control and and external
DC power supply cables.
Do keep delivery and suction tubes as short and
direct as possible - though ideally not shorter than
1m - and follow the straightest route. Use bends of
large radius: at least four times the tubing diameter. Ensure that connecting pipework and fittings are
suitably rated to handle the predicted pipeline pressure. Avoid pipe reducers and lengths of smaller
bore tubing than the pumphead section, particularly in pipelines on the suction side. Any valves in the
pipeline (not usually needed) must not restrict the
flow. Any valves in the flow line must be open when
the pump is running.
Do use suction and delivery pipes equal to or larger than the bore of the tube in the pumphead. When
pumping viscous fluids use pipe runs with a bore
several times larger than the pump tube.
Do site the pump at or just below the level of the
fluid to be pumped if possible. This will ensure
flooded suction and maximum pumping efficiency.
Do keep the pumphead track and all moving parts
clean and free from contamination and debris.
Do run at slow speed when pumping viscous fluids
(though see Pressure advice in 1.8.1 General rec-
ommendations). Flooded suction will enhance
pumping performance in all cases, particularly for
materials of a viscous nature.
120 pumps may be wiped with a damp cloth, but
should not be hosed or immersed. The front of the
pump is further protected against light spillages.
When using Marprene or Bioprene continuous
tubing, do re-tension the tube after the first 30 minutes of running.
Tube selection: The chemical compatibility lists
published in Watson-Marlow publications are
guides. If in doubt about the compatibility of a tube
material and the duty fluid, request a WatsonMarlow tube sample card for immersion trials.
120 pump RMS
pressure ratings
120F + any
pumphead
0 bar
120S+102R
120S+400DM2
120S+400DM3
120U+114DV
120U+400D1
120U+400DM2
120U+400DM3
2 bar
Watson-Marlow 120 IP31 pumps: general information 9
1.9 Power supply
The 120 pump is suitable for single-phase mains
electricity supplies only via the double-insulated
(Class II) 90-264VAC-to-24VDC mains adaptor. Use
only the approved 24VDC Meanwell type GE24I24P1JK DC adaptor or the Powersolve ESA24-24 DC
adaptor supplied with the pump.
A well regulated electrical mains supply is required
along with cable connections conforming to the best
practice of noise immunity. It is not recommended
to site these drives alongside “dirty” electrical mains
supplies such as 3-phase contactors and inductive
heaters without special attention being paid to
unacceptable mains-borne noise.
To prepare your power supply
Select the mains input adapter appropriate to
your region—UK, US, Australia or Europe—and
slide it into position on the rear of the unit.
Ensure it clicks into place.
Stop/start power cycles: Do not power up/power
down for more than 100 starts per hour. A minimum interval of 3 seconds is required between power
cycles.
We recommend using commercially available supply
voltage surge suppression
where there is excessive
electrical noise.
USUK EuroAus
Watson-Marlow 120 IP31 pumps: general information 10
Unit weights
Drive
only+114DV+ 102R+ 400D1+ 400DM2+400DM3
1.4kg 1.5kg 1.55kg 1.65kg 1.7kg 1.7kg
1.10 Dimensions
IP (ingress protection) definition
1st Digit: 3 2nd Digit: 1
Protected against
ingress of solid objects
with a diameter of more
than 2.5mm. Tools,
wires etc with a
thickness of more than
2.5mm are prevented
from approach
Protection against
dripping water falling
vertically. No harmful
effect must be produced
This pump’s ingress protection is rated IP31.
120 pump drive with
102R pumphead
120 pump drive with
114DV pumphead
Note: A 120U pump drive is shown here. All
drives have the same dimensions and weight
(apart from drive shaft dimensions).
120 pump drive with
400D1 pumphead
120 pump drive with
400DM2 pumphead
120 pump drive with
400DM3 pumphead
Watson-Marlow 120 IP31 pumps: general information 11
1.11 Start-up check
list
Note: See also section 2 (120F, 120S or 120U
drives) and section 3 (102R, 114DV or 400 series
pumpheads) of these instructions.
Ensure that proper connections are achieved
between the pump tube and suction and discharge piping.
Ensure proper connection has been made to the
external DC power supply unit, and to a suitable power supply.
Ensure that the recommendations in the section
1.8 Good pump installation practice are fol-
lowed.
1.12 Drive
maintenance
There are no user-serviceable parts inside the
pump. The unit should be returned to WatsonMarlow or its appointed agents or distributors
for service.
1.13 Drive spares
Dedicated external DC power supply unit and
plug adaptors: MN2634B
Foot: FB0012
Watson-Marlow 120 IP31 pumps: general information 12
1.14 Decontamination
certificate
In compliance with the UK Health and Safety at
Work Act and the Control of Substances Hazardous
to Health Regulations, you are required to declare
the substances which have been in contact with
product(s) you return to Watson-Marlow or its subsidiaries or distributors. Failure to do so will cause
Your name Company
Address
Postcode/zip Country
Telephone Fax
Product type Serial number
To speed the
repair, please
describe all
known faults
The product has ...
I Been used II Not been used
If the product has been used, please complete all the following sections.
If the product has not been used, please just sign this form.
Names of
chemicals handled
with product(s)
Precautions to be
taken in handling
these chemicals
Action to be taken
in the event of
human contact
I understand that the personal data collected will be kept confidentially
in accordance with the UK Data Protection Act 1998.
RGA number
Signature Your position
Date
Please print out, sign and fax to Watson-Marlow Pumps at +44 1326 376009.
delays. Please ensure that you fax us this form and
receive an RGA (Returned Goods Authorisation)
before you despatch the product(s). A copy of this
form must be attached to the outside of the packaging containing the product(s). Please complete a
separate decontamination certificate for each product.
You are responsible for cleaning and decontaminating the product(s) before return.
Watson-Marlow 120F IP31 pumps: operating instructions 1
WATSON-MARLOW MANUALS
Watson-Marlow 120F cased pumps:
Section 2 of 3: Operating manual
m-120F-ip31-gb-01 Original instructions
2.1 Pump specifications
A nameplate is fixed to the rear of the pump. It contains manufacturer and contact details, product reference number, serial number and model details.
120F
This pump is started and stopped from the keypad.
Pump specifications
Control range (turndown ratio)
Fixed speed. With 102R: 10 rpm; 17 rpm; 31 rpm
With 114DV: 10 rpm; 17 rpm; 31 rpm; 52 rpm; 220 rpm
Power supply DC input 24V @ 1A
Enclosure rating
IP31 to BS EN 60529. Equivalent to NEMA 2, suitable for indoor
use. Protected against dripping water and falling dirt. May be
wiped with a damp cloth, but should not be immersed
Pumphead options 114DV and 102R
Tubing options Pumpsil silicone tubing only
Operating temperature range 5C to 40C, 41F to 104F
Storage temperature range -25C to 65C, -13F to 149F
Maximum altitude 2,000m, 6,560ft
Humidity (non-condensing) 80% up to 31C, 88F, decreasing linearly to 50% at 40C, 104F
Weight See Section 1, General information
Noise <60dB(A)
2.1 Pump specifications 1
2.2 Good pump installation practice 2
2.3 Switching the pump on 2
2.4 Operation 3
2.4.1 Start and stop 3
2.5 Performance data 3
2.6 Error codes 3
2.7 Troubleshooting 4
Contents
Watson-Marlow 120F IP31 pumps: operating instructions 2
120F Start-up defaults
Speed Fixed: see keypad
Direction Fixed: clockwise
Beeper Fixed: on
Auto-start Fixed: on *
Pump status Stopped
2.2 Good pump
installation practice
The 120 pump must be mounted in the upright position and not inverted or placed on its rear face.
Two models are available, fitted with either a 114DV
pumphead or a 102R pumphead, in either case
pumping with Pumpsil silicone tubing only. The
120F is designed for fluid transfer only. It cannot be
run at pressure.
2.3 Switching the
pump on
The pump is powered by a dedicated 24V external
DC power supply unit which is supplied with the
pump.
Plug the power supply’s output connector into
the power socket on the rear of the pump.
Plug the power supply unit into a mains power
outlet and switch on.
Load the pumphead with tube: see Section 3 of
these instructions.
The pump is now ready to operate according
to the default settings.
* If the pump is isolated from mains power while it
is running, it will start when power is re-connected:
it is not necessary to press START.
Watson-Marlow 120F IP31 pumps: operating instructions 3
2.4 Operation
2.
4.1 Start and stop
To start the pump, press the green START key on
the keypad. The pump rotates clockwise at its fixed
speed, a beep sounds and an LED beside the START
key illuminates.
To stop the pump, press the red STOP key on the
keypad. The pump stops, a beep sounds and the
LED beside the START key goes out.
2.5 Performance data
This pump is available in five standard versions,
each offering a fixed speed. For performance information, see Section 3 (102R or 114DV pumpheads)
of these instructions.
2.6 Error codes
The LED beside the START key flashes to indicate a
fault. Fast flashing—¼ second on, ¼ second off
—indicates an error which may be resolved by
cycling the power; if the fault is not resolved,
contact your local service centre. Slow flashing—
½ second on, ½ second off—indicates a fault which
requires the pump to be returned to your local service centre.
Fixed speeds available with pumphead options
102R 114DV
10 rpm
17 rpm
31 rpm
52 rpm
220 rpm
Watson-Marlow 120F IP31 pumps: operating instructions 4
2.7 Troubleshooting
If the pump fails to operate, make the following
checks:
Check that the dedicated external DC power
supply unit is plugged into a working mains
power source which is switched on. Check that
the power supply unit’s LED is illuminated (if
fitted).
Check that the dedicated external DC power
supply unit’s output connector is plugged into
the pump.
If the pump runs but there is little or no flow, make
the following checks:
Check that tubing is installed in the pumphead;
check that it is Pumpsil—other tubing materials
are not suitable for use in a 120F pump; check
that the tubing is the correct wall thickness:
1.6mm.
Check that the tube is not split or burst.
Check for any kinks or blockages in the lines.
Check that any valves in the lines are open.
Check that the rotor is in the pumphead, that
it rotates and that the rollers are in good
condition.
Check that fluid is supplied to the pump.
Watson-Marlow 114DV pumphead: operating instructions 1
WATSON-MARLOW MANUALS
Watson-Marlow 120 cased pumps
Section 3 of 3: 114DV pumpheads
m-114pumphead for 120-gb-01 Original instructions
Contents
3.1 Product specifications 2
3.2 114DV safety information 2
3.3 114DV pumping conditions:
pressure and viscosity 3
3.4 114DV pumphead installation 3
3.5 Tube holder positioning 4
3.5.1 Tube holder
repositioning 5
3.6 Tube loading and removal 6
3.7 114DV pumphead spares 6
3.8 114DV performance data 7
3.9 114DV continuous tubing
product codes 8
3.10 Trademarks 8
3.11 Do not use pumps in patientconnected applications 8
3.12 Publication history 8
Watson-Marlow 114DV pumphead: operating instructions 2
3.1 Pumphead
specifications
The 114DV pumphead has four rollers and accepts
1.6mm wall thickness tubing only. New tubing can
be easily loaded into the flip top design. The top
closes with a "clamp and stretch" action to locate
the tube in the correct position and with the correct
tension.
3.2 114DV safety
information
There are moving parts inside the pumphead.
Before opening the pumphead track, ensure
that the following safety directions are
followed.
Ensure that the pump is isolated from the
mains power.
Ensure that there is no pressure in the pipeline.
If a tube failure has occurred, ensure that any
fluid in the pumphead has been allowed to
drain to a suitable vessel, container or drain.
Protective clothing and eye protection must be
worn if hazardous fluids are pumped.
This symbol, used on the
pump and in this manual,
means: Caution, refer to
accompanying documents.
This symbol, used on the
pump and in this manual,
means: Do not allow fingers to
contact moving parts.
Watson-Marlow 114DV pumphead: operating instructions 3
3.3 114DV pumping
conditions: pressure
and viscosity
All pressure values in this operating instruction,
from which performance life figures have been
calculated, relate to root mean square (RMS)
pressure, giving a more relevant pressure value
than figures quoted in terms of peak pressure.
The RMS pressure is similar to the value you
would read on a damped analogue gauge.
Ensure that there is always a minimum of one
metre of flexible tubing connected to the
discharge side of the pumphead. This helps to
minimise any impulse losses and pulsation in
the pipeline. This is especially important with
viscous fluids and rigid pipework.
3.4 114DV pumphead
installation
A correctly engineered installation will promote the
best possible tube life, so please ensure that the
following guidelines are followed:
Avoid tight pipeline bends, pipe reducers and
excessive lengths of smaller bore tubing than
that in the pumphead, particularly in pipelines
on the suction side.
Ensure that connecting pipework and fittings
are suitably rated to handle the predicted
pipeline pressure.
If rigid pipework comes in close proximity to
the pumphead, a drop-out section of pipework
will simplify tube replacement.
Watson-Marlow 114DV pumphead: operating instructions 4
3.5 Tube holder
positioning
The pumphead can be adjusted to accommodate
1.6mm wall tubing in sizes from 0.5mm bore to
4.8mm bore. It is preset to accommodate 1.6mm
wall tubing with 1.6mm, 2.4mm, 3.2mm, 4.0mm
and 4.8mm bore.
Tube bore size 0.5mm 0.8mm 1.6mm 2.4mm 3.2mm 4.0mm 4.8mm
Tube holder position
Inner Inner Outer Outer Outer Outer Outer
Inner position, for small tubing
Outer position, for large tubing
Note: If the tube holder is in its inner position, for
small tubing (small circle), and larger tube (4.0mm-
4.8mm bore) is used, flow and tube life will be
decreased.
If the tube holder is in its outer position, for large
tubing (large circle), and smaller tube (0.5mm-
0.8mm bore) is used, there is a risk that the tube
will wander in the pumphead, and it may rupture.
Watson-Marlow 114DV pumphead: operating instructions 5
To change from the large
tube to the small tube setting
Press down and slightly away from the front of
the pumphead, as shown in the first picture
above.
Maintain the angled downward pressure and
push away from the front of the pumphead.
The jaw clicks into a new position.
Release the pressure. The jaw rises into its cor-
rect alignment. If it does not rise, repeat the
procedure, being sure to maintain downward
pressure until release.
Adjust the tube holder on the other side of the
pumphead in the same way.
To change from the small
tube to the large tube setting
Carry out the procedure described above, but
pushing towards the front of the pumphead.
Lift the flip top until fully open.
Place the pointed device pointing down into the
small depression pictured here.
Note: The pictures on the previous page show the
tube holders’ correct positions for small and large
tubing. If a tube holder is not vertical relative to the
body of the pumphead, it is wrongly positioned.
Follow the instructions above to reposition it.
3.5.1 Tube holder
repositioning
Switch off the pump before changing the tube
holder position. Use a pointed device such as a
ball-point pen to reposition the lower tube holders
on both sides of the pumphead.
Watson-Marlow 114DV pumphead: operating instructions 6
3.6 Tube loading and
removal
Lift the flip top until fully open.
Select enough tube length for the curve of the
pump track. Place the tube between the rotor
rollers and the track, pressed against the
pumphead inner wall. The tube must not be
twisted or stretched against the rollers.
Lower the flip top until it clicks into its fully
closed position. The track closes automatically
and the tube is stretched correctly as it does
so.
To remove the tube, reverse the sequence.
Click!
Check that the tube holders on both sides of the
pumphead are correctly set for the size of tube you
are using.
Always isolate the pump from
the mains power supply before
opening the guard or
performing any positioning,
removal or maintenance
activity.
3.7 114DV pumphead
spares
013.6000.00A
114DV pumphead with tube
holder pre-set into larger bore
setting
Watson-Marlow 114DV pumphead: operating instructions 7
3.8 114DV
Performance data
Flow rates are normalised test values obtained
using new tubing with the pumphead rotating clockwise pumping water at 20C with negligible inlet and
discharge pressure. Actual flow rate achieved may
vary because of changes in temperature, viscosity,
inlet and discharge pressures, system configuration
and tubing performance against time. Flow rates
may also vary due to normal manufacturing
tolerances of the tubing. These tolerances will make
flow rate variance more pronounced at smaller bore
sizes.
For precise and repeatable performance it is
important to determine flow rates under
operating conditions for each new piece of
tubing.
Note: Flow rates quoted have been rounded for
simplicity, but are accurate to within 5%, well
within the normal tubing tolerance variation of flow
rate. They should therefore be taken as a guide.
Real flow rates in any application must be
determined empirically.
120F: All tubing materials (ml/min)
Fixed
speed
0.5
mm
0.8mm1.6
mm
2.4mm3.2mm4.0mm4.8
mm
10 rpm 0.2 0.4 1.4 2.9 4.7 6.7 8.5
17 rpm 0.3 0.7 2.4 4.9 8 11 14
31 rpm 0.6 1.2 4.3 9.0 15 21 26
52 rpm 1.0 2.1 7.3 15 25 35 44
220 rpm 4.4 8.8 31 64 100 150 190
120S: All tubing materials (ml/min)
Speed 0.5mm 0.8mm 1.6mm 2.4mm 3.2mm 4.0mm 4.8mm
1-200
rpm
0.02-4 0.04-8 0.14-28 0.29-58 0.47-94 0.67-130 0.85-170
120U: All tubing materials (ml/min)
Speed 0.5mm 0.8mm 1.6mm 2.4mm 3.2mm 4.0mm 4.8mm
0.1-200
rpm
0.002-4 0.004-8 0.01-28 0.03-58 0.05-94 0.07-130 0.09-170
Pressure and flow performance curve
Marprene tubing, 1.6mm wall, 100 rpm, CCW
rotation. Note: The 120S and the 120U must be run
counter-clockwise to achieve pressures up to 2 bar.
The 120F is a transfer-only, 0 bar pump.
suction (bar) pressure (bar)
01 2
Flow rate: ml/min
0
20
40
70
80
100
10
30
50
60
90
-0.5 -0.3 0-0.1-0.2-0.4
0.8 x 1.6
1.6 x 1.6
4.8 x 1.6
4.0 x 1.6
3.2 x 1.6
2.4 x 1.6
114DV, standard occlusion
Watson-Marlow 114DV pumphead: operating instructions 8
3.9 114DV continuous
tubing product codes
1.6mm wall thickness tubing for the
114DV pumphead
mm # Marprene Bioprene Pumpsil
0.5 112 902.0005.016 903.0005.016 913.A005.016
0.8 13 902.0008.016 903.0008.016 913.A008.016
1.6 14 902.0016.016 903.0016.016 913.A016.016
2.4 902.0024.016 903.0024.016 913.A024.016
3.2 16 902.0032.016 903.0032.016 913.A032.016
4.0 902.0040.016 903.0040.016 913.A040.016
4.8 25 902.0048.016 903.0048.016 913.A048.016
mm # STA-PURE PCS STA-PURE PFL
1.6 14 960.0016.016 965.0016.016
3.2 16 960.0032.016 965.0032.016
4.8 25 960.0048.016 965.0048.016
3.10 Trademarks
Bioprene, Marprene, Pumpsil and WatsonMarlow are trademarks of Watson-Marlow
Limited.
GORE STA-PURE PCS and GORE STA-PURE PFL
are trademarks of W.L.Gore and Associates.
3.11 Do not use
pumps in patientconnected applications
Warning These products are not designed for use
in, and should not be used for patient-connected
applications.
3.12 Publication
history
m-114pumphead for 120-gb-01.qxp:
Watson-Marlow 114 pumphead.
First published 07 10.
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