Watson-Marlow 120 Installation guide

Watson-Marlow 120 cased pumps
Installation, operating, and maintenance manual
m-120-en-02 1
Contents
1 General information 2
1.1 Declaration of conformity 2
1.2 Declaration of incorporation 2
1.3 Warranty 3
1.4 Introduction 4
1.5 When you unpack your pump 5
1.6 Information for returning pumps 5
1.7 Peristaltic pumps — an overview 6
1.8 Safety notes and standards 6
1.9 Good pump installation practice 10
1.10 Power supply 12
1.11 Dimensions 14
1.12 Start-up check list 15
1.13 Drive maintenance 15
1.14 Drive spares 15
2 Operating manual 16
2.1 Specifications 16
2.2 Switching the pump on 19
2.3 Remote control wiring 22
2.4 Manual operation — 120F 25
2.5 Manual operation — 120S and 120U 25
2.6 Remoteand automaticcontroland operation 28
2.7 Troubleshooting 36
3 Pumpheads 38
3.1 114DV pumpheads 38
3.2 102R pumpheads 43
3.3 400D1, 400DM2 and 400DM3 pumpheads 48
4 Trademarks 55
5 Publication history 55
6 Disclaimers 55

1 General information
1.1 Declaration of conformity
This declaration was issued for Watson-Marlow 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 2014/30/EU.
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: Simon Nicholson, Managing Director,
Watson-Marlow Limited, Falmouth, Cornwall TR11 4RU, England. Telephone [phone] Fax +44
(0) 1326 376009.
The information in this user guide is believed to be correct at the time of publication. However, Watson-
Marlow Fluid Technology Group accepts no liability for errors or omissions. WMFTG 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: www.wmftg.com
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1.3 Warranty
Watson-Marlow Ltd ("Watson-Marlow") warrants this product to be free from defects in materials and workmanship for
three years fromthe 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 awarranty claim.
Watson-Marlow shall not be responsible forshipping damage of returned items.
Conditions
•Products must be returned by pre-arrangement to Watson-Marlow, or a Watson-Marlowapproved service centre
•All 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.
•Warranties purporting to be on behalf of WMFTG made by any person, including representatives of WMFTG, its
subsidiaries, or its distributors, which do not accord with the terms of this warranty shall not be binding upon
WMFTG unless expressly approved in writing by a Director or Manager of WMFTG
Exceptions
•Consumable items including tubing and pumping elements are excluded.
•Pumphead rollers are excluded.
•Repairs or service necessitated by normal wear and tear or by lack of reasonable and proper maintenance are
excluded.
•Products which, in the judgement of Watson-Marlow, have been abused, misused, or subject to malicious or
accidental damage or neglect are excluded.
•Failure caused by electrical surge is excluded.
•Failure caused by incorrect or sub-standard system wiring is excluded.
•Damage by chemical attack is excluded.
•Ancillaries such as leak detectors are excluded.
•Failure caused by UV light ordirect sunlight.
•Any attempt to disassemble a Watson-Marlow product will invalidate the product warranty.
•The 120F is excluded from all warranty when pumping above 1bar. The 120U and the 120S are excluded from all
warranty when pumping above 2 bar.
Pumpheads used with this pump drive carry their own warranty.

1.4 Introduction
A nameplate is fixed to the rear of the pump. It contains manufacturer and contact details, product
reference number, serial number and model details.
These operating instructions are for the following pump models:
120F
This pump isstarted and stopped from the keypad.
120S
This pump iscontrolled from the keypad. It features:
Manual control
•Speed adjustment
•Run and stop
•Direction control
•max key for rapid priming
•auto start for automatic power recovery
120U
This pump can be controlled from the keypad or remotely. It features:
Manual control
•Speed adjustment
•Run and stop
•Direction control
•max key for rapid priming
•auto start for automatic power recovery
•auto key for changing between manual and auto control
Remote digital control
•The pump can be digitally controlled with a contact closure or logic inputsignal
Analogue control
•The pump speed can be controlled through an analogue signal input of 4-20mA or 0-10V
Outputs
•Logicoutputdesignated for an alarm only DC Tacho output
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1.5 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 componentssupplied 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 unitfor your pump with plug adaptors
•PC-readable CDROMcontaining these operating instructions
•Quick Startprinted 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. Please observe the storage recommendations and use-by dates which apply to tubing
you may wish to bring into service after storage.
1.6 Information for returning pumps
If you wish to return a pump for service or other reasons, contact WMFTG or your distributor, quote your
pump’sserialnumber, and ask for a returnsnumber. Includethisnumber when you ship thepump.
If the pump has been used, the fluidsthat have been in contact with the pump and the cleaning procedure
must be specified along with a statement that the equipment has been decontaminated.
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 substanceswhich have been in contact with product (s)
you return to WMFTG or it subsidiaries or distributors. Failure to do so will causedelays. Please ensure that
you email usthisinformation and receivea RGA (Returned GoodsAuthorisation) before you despatch the
product (s). A copy of the RGA form must be attached to the outside of the packaging containing the
product(s).
Please complete a separate decontamination certificate for each product and attach it to the outside of the
packaging containing the product (s). A copy of the appropriate decontamination certificate can be
downloaded from the WMFTG website at www.wmftg.com
You are responsible for cleaning and decontaminating the product(s) before return.

1.7 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 pumpscan 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 atthe 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 iscreated 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 isexpelled from one end of the tube while more is drawn in at the other.
Suitable applications
Peristalticpumping is idealfor most fluids, including viscous, shear-sensitive, corrosive and abrasive fluids,
and those containing suspended solids. They are especially usefulfor pumping operationswhere hygiene
isimportant.
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.
1.8 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 WMFTG, the protection provided by the pump
may be impaired.
Any person who isinvolved in the installation or maintenance of this equipment should be fully competent
to carry out the work. In the UK thisperson 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 isno 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 protection 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.
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This pump must be used only for its intended purpose.
The pump must be accessible at all timesto facilitate operation and maintenance. Access points must notbe
obstructed or blocked. Do not fit any devices to the drive unit other than those tested and approved by
WMFTG. Doing so could lead to injury to persons or damage to property for which no liability can be
accepted.
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.
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 product does not comply with the ATEX directive and must not be used
in explosive atmospheres.
There are moving parts inside the pumphead. Before opening the guard or
track, ensure that the following safety directions are followed:
•Ensure 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 appropriate Personal Protective Equipment (PPE) is worn.
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.

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 isClass II insulated: double insulated with no earth connection.
The pump isClass 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 laboratory 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
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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
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%

1.9 Good pump installation practice
Position
The pump must be mounted in the upright position and not inverted or placed on its rear face.
It is recommended that the pump is sited on a flat, horizontal, rigid surface, free from excessive vibration,
to ensure the correct lubrication of the gearbox and correct pumphead operation. Allow a free flow of air
around the pump to ensure that heat can be dissipated. Ensure that the ambient temperature around the
pump does notexceed the recommended maximum operating temperature.
Do not stack more than 2 pumps on top of each other. 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. When the pumps are stacked, ensure that the ambient temperature around all the pumps in the
stack does not exceed 40 C.
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.
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.
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
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120Fcased pumps
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.
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 thecontroland and externalDC power supply cables.
Do keep delivery and suction tubes as short and direct as possible - though ideally not shorter than one
metre - and follow the straightest route. Use bendsof 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
pipelineson the suction side. Any valvesin the pipeline mustnot restrict the flow. Any valvesin the flow line
must be open when the pump is running.
Do ensure that on longer tube runs at least one metre of smooth bore, flexible tubing is connected to the
inlet and discharge port of the pumphead to help to minimise impulse losses and pulsation in the pipeline.
Thisisespecially importantwith viscous fluids and when connecting to rigid pipework.
Do use suction and delivery pipes equal to or larger than the tubing diameter bore. When pumping
viscousfluids use pipe runswith a bore several timeslarger 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 allmoving partsclean and freefrom contamination and debris.
Do run at slow speed when pumping viscous fluids. Flooded suction will enhance pumping performance,
particularly for materials of a viscous nature.
Do not pump any chemical not compatible with the tube or pumphead.
Do not run the pump with no tube or element fitted to the pumphead.
120pumps may be wiped with a damp cloth, but should not be hosed or immersed. The front of the
pump isfurther protected against lightspillages.
When using Marprene or Bioprene continuoustubing, 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 Watson-Marlow tube sample
card for immersion trials.

1.10 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 GE24I24-P1JK 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.
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%
We recommend using commercially available supply voltage surge
suppression where there is excessive electrical noise.
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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.
UK US Aus Euro

1.11 Dimensions
120 pump drive with
102R pumphead
Note: A 120U pump drive isshown here. Alldriveshave the same dimensions and weight (apart from drive
shaftdimensions).
120 pump drive with
114DV pumphead 120 pump drive with
400D1 pumphead
120 pump drive with
400DM2 pumphead
120 pump drive with
400DM3 pumphead
Unit weights
Drive Only + 114DV + 102R + 400D1 + 400DM2 + 400DM3
1.4kg 1.5kg 1.55kg 1.65kg 1.7kg 1.7kg
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IP (ingress protection) definition
Thispump’s ingressprotection israted IP31.
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
1.12 Start-up check list
Note: See also Refer to "102R pumpheads" on page43 Refer to "114DV pumpheads" on page38 or Refer to
"400D1, 400DM2 and 400DM3 pumpheads" on page48 for additional installation instructions specific to your
pumphead.
•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 Refer to "Good pump installation practice" on page10 are
followed.
1.13 Drive maintenance
There are no user-serviceable parts inside the pump. The unit should be returned to Watson-Marlow or its
appointed agentsor distributorsfor service.
1.14 Drive spares
Dedicated external DC power supply unit and plug adaptors: MN2634B
Foot: FB0012

2 Operating manual
2.1 Specifications 16
2.2 Switching the pump on 19
2.3 Remote control wiring 22
2.4 Manual operation — 120F 25
2.5 Manual operation — 120S and 120U 25
2.6 Remote and automatic control and operation 28
2.7 Troubleshooting 36
2.1 Specifications
120F 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 Refer to "Dimensions" on page14
Noise <60dB(A)
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120F performance data
This pump is available in five standard versions, each offering a fixed speed. For performance
information, see Refer to "102R pumpheads" on page43 or Refer to "114DV pumpheads" on page38.
Fixed speeds available with pumphead options
102R 114DV
10 rpm l l
17 rpm l l
31 rpm l l
52 rpm N/A l
220 rpm N/A l
120S specifications
Control range
(turndown ratio)
With 102R: 1-32 rpm (32:1)
With 114DV: 1-200 rpm (200:1)
With 400D1: 1-200 rpm (200:1)
With 400DM2: 1-100 rpm (100:1)
With 400DM3: 1-100 rpm (100:1)
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, 102R, 400D1, 400DM2 and 400DM3
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 Refer to "Dimensions" on page14
Noise <60dB(A)

120U specifications
Control range
(turndown ratio)
Manualcontrol:
With 102R: 0.1-32 rpm (320:1)
With 114DV: 0.1-200 rpm (2,000:1)
With 400D1: 0.1-200 rpm (2,000:1)
With 400DM2: 0.1-100 rpm (1,000:1)
With 400DM3: 0.1-100 rpm (1,000:1)
Auto control:
With 102R: 0.01-32 rpm (3,200:1)
With 114DV: 0.01-200 rpm (20,000:1)
With 400D1: 0.01-200 rpm (20,000:1)
With 400DM2: 0.01-100 rpm (10,000:1)
With 400DM3: 0.01-100 rpm (10,000:1)
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, 102R, 400D1, 400DM2 and 400DM3
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 Refer to "Dimensions" on page14
Noise <60dB(A)
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Function comparison, models 101U and 120U
Function 101U 120U
Analogue input 0-30mA and 0-30V 4-20mA and 0-10V
Range and off-set
trimming possible can only set the maximum speed
Signal inversion possible not possible
Tacho output +5V and –5V at maximum
speed 5V at maximum allowed speed
Input impedance 255Ω 250Ω
Max speed options 2 rpm or 32 rpm,
model-dependant single speed range, pumphead-dependant
Speed increments 10% or 1% increments 0.1 rpm in manual mode and 0.01 rpm in
analogue mode
Analogue control 2,000:1 control ratio 20,000:1 control ratio
2.2 Switching the pump on
The pump is powered by a dedicated 24V external DC power supply unitwhich issupplied with the pump.
Plug the power supply’soutput connector into the power socket on the rear of the pump.

120F
•Plug thepower supply unit into a mainspower outlet and switch on.
•Load the pumphead with tube.
The pump is now ready to operate according to the default settings.
120S
Plug the power supply unit into a mains power outlet and switch on. The pump performs a power-on test
to confirm proper functioning of the memory and hardware. If a fault is found, an error message is
displayed. See Refer to "Error codes" on page36.
Load the pumphead with tube.
The pump is now ready to operate according to the default settings.
Operating parameters may be changed by means of key-presses. See Refer to "Manual operation — 120S
and 120U" on page25.
To return the pump to its default settings, press and hold DIRECTION on power up.
120U
Note: If you plan to operate the pump by controls external to the pump, the 15-way
D-connector must be connected before power is supplied to the pump (see 2.5 Automatic
control wiring and 2.6 Remote/automatic control and operation). If any change is made later
to the 15-way D-connector, it must be reconnected before power is supplied to the pump.
Plug the power supply unit into a mains power outlet and switch on. The pump performs a power-on test
to confirm proper functioning of the memory and hardware. If a fault is found, an error message is
displayed. See Refer to "Error codes" on page36.
Load the pumphead with tube.
The pump is now ready to operate according to the default settings.
Operating parameters may be changed by means of key-presses. See Refer to "Manual operation — 120S
and 120U" on page25.
To return the pump to its default settings, press and hold DIRECTION on power up.
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