Published by Smiths Medical International Limited.
All possible care has been taken in the preparation of this publication, but Smiths Medical International
Limited accepts no liability for any inaccuracies that may be found.
Smiths Medical reserves the right to make changes without notice both to this publication and to
the product which it describes.
No part of this publication may be reproduced, transmitted, transcribed, or stored in a retrieval
system or translated into any human or computer language in any form by any means without the
prior permission of Smiths Medical International Limited.
SMITHS MEDICAL INTERNATIONAL LIMITED,
COLONIAL WAY,
WATFORD,
HERTFORDSHIRE,
UNITED KINGDOM,
WD24 4LG
9.3Layout of components on the power supply board ........................................... 9-2
A.1New modified Syringe Size Sensor Flag .......................................................... A-1
A.2Order for tightening the case screws................................................................ A-3
A.3Size Sensor Flag: general details ..................................................................... A-5
3200 Service Manual
Issue 5 (August 2004)
Page ix
Warnings and cautions
Smiths Medical International Ltd.
Introduction
This Technical Service Manual together with the Instruction Manual, contains all the information that is needed in order
to maintain, repair and operate the Graseby 3200 pump. The contents of this Manual are intended to be read and used
by suitably qualified personnel.
AC input power connecting socket/cable
The AC input power socket that connects to the rear of the pump has three connections (live, neutral and earth)
provided by a 3-way power cable. As the casing is doubly insulated, the AC input connector situated on the pump
only utilises two connections (live and neutral), there is no third earth pin. This method of AC input enables similar AC
input sockets (if required) to that supplied by Smiths Medical to be used.
Warnings and cautions
Warnings tell you about dangerous conditions that could lead to death or serious injury to the user or patient that can
occur if you do not obey all of the instructions in this manual.
WARNINGS
1. WARNING: To avoid over- or under- infusion, always verify that the brand and size of the loaded syringe are the
same as the brand and size displayed on the screen before starting an infusion. Failure to do so may result in an
inaccurate delivery of medication, resulting in patient injury or death.
2. WARNING: To avoid incorrect or inappropriate configuration of the pump, the Configuration menu must only be
selected by qualified persons or authorised personnel. Incorrect pump configuration could lead to inappropriate
infusion resulting in patient injury or death.
3. WARNING: This equipment is not suitable for use in the presence of flammable anaesthetics, oxygen-enriched
or explosive atmospheres. The use of the device in such atmospheres may lead to explosion or fire.
4. WARNING: To avoid possible malfunction of the pump, do
ionizing radiation, or to the RF interference or strong electric/magnetic fields emitted (for example) by diathermy
equipment or mobile telephones. If the pump is used in the presence of, or in combination with Magnetic
Resonance Imaging (MRI) machines it must be protected from the magnetic field emitted by such equipment.
Malfunction of the pump can cause incorrect infusion or loss of infusion resulting in patient injury or death.
5. WARNING: Operation of the pump outside the temperature limits defined in the specification may result in
erroneous operation. Ensure that the temperature is within the specified limits. Failure to do so may result in
patient injury or user injury.
6. WARNING: In order to ensure that the intended infusion is performed, data must be entered correctly. Likewise
before confirming any displayed data the user should ensure that it is correct. Failure to do so may result in
compromised function of the product, patient injury or user injury.
7. WARNING: Failure to respond promptly to an alarm may result in patient injury or death.
8. WARNING: Failure to follow the
compromised function of the product and lead to patient injury or death.
9. WARNING: It is essential that clinical staff remain within visual and audible range of the pump so that critical
alarms can be seen or heard and responded to.
10. WARNING: The user should ensure that the performance offered by the pump is fit for the intended purpose.
Failure to do so may result in compromised function of the product, patient injury or user injury.
11. WARNING: When the pump is carrying out an infusion, to ensure that electrical safety is maintained only items
of equipment that conform to EN60950 are to be connected to the RS232 connector situated at the base of the
pump, otherwise patient safety may be compromised.
12. WARNING: Correct management of battery charging is essential to ensure that the pump can operate on
batteries for the time specified. Failure to do so may lead to impaired functioning of the pump, resulting in
patient injury or death.
not
13. WARNING: Do
indicate a FAULT condition and the pump will fail to infuse. Incorrect performance of the pump can cause
complications resulting in patient injury or death.
If the pump develops a fault then it must be referred to a suitably qualified engineer or returned to Graseby
Medical in order to have the fault rectified.
14. WARNING: Failure to use the mains lead clamp means that the pump may be accidentally or erroneously
disconnected from the mains. Although there is battery backup in case this happens, the battery may not be
sufficiently charged. Consequently there is a risk of the pump not functioning, which could lead to patient injury
or death.
15. WARNING: If an occlusion alarm occurs, immediately clamp the line to eliminate the possibility of a bolus being
delivered to the patient. Then inspect the fluid pathway for kinks, clogged catheter, etc. in order to remove the
occlusion prior to restarting the infusion. An unintentional bolus of medication can result in patient injury or
death.
use a faulty pump. If the pump develops a fault then an alarm will sound; the display will
Service Manual’s
maintenance schedule recommendations may result in
not
expose the pump to X- rays, gamma rays or
Page x
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Warnings and cautions
16. WARNING: Use only the syringes and administration sets listed in the
Failure to do so may result in an inaccurate delivery. Smiths Medical does not guarantee performance of the
pump if syringes other than those listed are used. Incorrect function or performance of the pump can cause
complications resulting in patient injury or death.
17. WARNING: The volume of fluid contained in the connecting tubing is a residual amount and will
Hence this extra volume of fluid must be allowed for when initially filling the syringe and purging the system.
Under-delivery of medication can cause complications resulting in patient injury or death.
18. WARNING: To avoid patient embolism, ensure that the patient tubing is purged of all air bubbles before
administering any medication. The pump provides a purge facility to assist with this process. The presence of
air within the medication can result in complications leading to patient injury or death.
19. WARNING: To avoid syphoning of the syringe contents (free flow), ensure that the syringe is correctly loaded
into the pump, that the syringe plunger is properly engaged by the pump’s actuator and that the pump is placed
not more than 80cm above the infusion site. Syphoning can result in over-infusion leading to patient injury or
death.
20. WARNING: To avoid over-infusion, do not purge the infusion line when the administration set is connected to the
patient. Over-infusion of medication can result in patient injury or death.
21. WARNING: To avoid the pump becoming detached from an IV pole always make sure that the pump is securely
fixed to the pole. Always check the security and stability of the assembly with the pump mounted.
22. WARNING: Following a significant liquid spill onto the pump, it should be wiped dry and inspected by service
personnel before being returned to service. Failure to do so may result in compromised functioning of the pump,
leading to patient or user injury or death.
23. WARNING: When using a syringe smaller than 50/60 ml the occlusion pressure will increase as the diameter of
the syringe decreases, i.e. the smaller the syringe the higher the pressure.
24. WARNING: For high risk or critical infusions, the use of the dedicated 3200 Extension set incorporating the
pressure sensing disc is recommended in order that occlusion pressure can be appropriately set and
monitored during an infusion.
25. WARNING: The patient history is lost when the clock is reset.
26. WARNING: Only adequately qualified personnel should maintain and repair the pump.
27. WARNING: The pump must be disconnected from the AC power supply before the case is opened.
28. WARNING: The Configuration and Diagnostic mode must only be used by personnel who are adequately qualified and
have previous training in the use of the pump.
29. WARNING: The safety and reliability of the pump may be compromised by the use of parts other than those specified
in this Manual.
30. WARNING: When a new Syringe Size Sensor Flag has been fitted to the pump (see Appendix), then the pump must be
tested using the new syringe size sensor gauges available from Smiths Medical (part number 0131-0202). Page 3 of
the Appendix gives details of the Final Testing procedures.
31. WARNING: The pump must be set to display the brand and the size of syringe that is going to be used. Using a
different brand or size of syringe to that being displayed could lead to the incorrect amount of drug being administered,
that could result in injury or death.
32. WARNING: The internal pump batteries must be disposed of in accordance with the manufacturers instructions.
Lead acid batteries must NOT be placed in the normal waste stream.
Specification
(Chapter 1).
not
be infused.
3200 Service Manual
Issue 5 (August 2004)
Page xi
Warnings and cautions
Smiths Medical International Ltd.
CAUTIONS
Cautions tell you about dangerous conditions that can occur and cause damage to the pump if you do not obey all
of the instructions in this manual.
1. CAUTION: Refer all service, repair and calibrations only to qualified technical personnel. Unauthorised
not
modifications to the pump must
2. CAUTION: When turning the pump on if screens similar to those illustrated are not displayed, do
pump. Send the pump to a suitably qualified engineer or return it to Smiths Medical in order to have the fault
rectified.
3. CAUTION: Do not use cleaning and disinfecting agents other than the approved ones specified here.
4. CAUTION: The pump must
immediately, and do not allow fluid or residues to remain on the pump. Additionally, the pump is not designed to
be autoclaved, steam-sterilised, ETO-sterilised or subjected to temperatures in excess of 45° C (113° F). Failure
to observe this caution may cause serious damage to the pump.
5. CAUTION: During the removal and replacement of a pump's components, strict observance to Electro Static
Discharge (ESD) rules must be observed at all times, i.e. an earthing strap must be worn. Failure to apply ESD
protection may result in serious damage to the product and possible malfunction. Ensure that any replacement
printed circuit board or other ESD sensitive items are stored in an anti-static container.
not
be carried out.
not
use the
be immersed in any liquids or exposed to strong organic solvents. Wipe off spills
Page xii
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Abbreviations
used
The following list shows the abbreviations that have been used at various
places throughout this Manual.
AbbreviationFull name
ACAlternating current
A-to-DAnalogue-to-digital
CCapacitor or Centigrade
CMOSComplimentary metal oxide silicone
cNmCentinewton metre
COPComputer operating properly
DCDirect current
DDiode
EEPROMElectrically erasable and programmable read
only memory
EPROMErasable program
FigFigure
HzHertz (cycles per second)
ICIntegrated circuit
IDIDentification
kbyteKilo byte
kgKilo gram
KVOKeep vein open
LCLiquid crystal
LEDLight emitting diode
MCIManually controlled infusion
MHzMega Hertz
ml/hMillilitre per hour
mlMillilitre
mmMillimetre
PSIPounds per square inch
PWMPulse width modulated
RResistance
RAMRandom access memory
TCITarget controlled infusion
VVolts
VFVacuum fluorescent
WWatts
3200 Service Manual
Issue 5 (August 2004)
Page xiii
CHAPTER 1
INTRODUCTION, FEATURES and SPECIFICATION
3200
In-line Pressure Syringe Pump
Smiths Medical International Ltd.
CHAPTER 1
INTRODUCTION, FEATURES and SPECIFICATION
Introduction
Introduction
The 3200 is a microcomputer controlled syringe pump that has primarily been developed for
the neonatal infusion of sterile liquids.
The pump has an In-line (wet-side) pressure sensing system for accurate occlusion detection.
The pump is capable of operating in any one of three different infusion modes, as follows:
•continuous,
•preset, or
•intermittent.
And is able to carry out an infusion using a 5, 10, 20, 30, 50/60 ml size syringe.
The pump incorporates a dot matrix vacuum fluorescent display that provides a constant
indication of the pump’s operation. A choice of any one of the following languages is available (with the appropriate software) via the diagnostic options mode:
English, Dutch, French, German, Italian, Norwegian and Spanish.
The pump can be Configured by the user to work with one of a range of brands of syringe.
It automatically senses the size of the syringe fitted to the pump. The rate of the pump can
be set to operate with either mass units or ml/hour.
The pump is able to dispense liquids at rates of between 0.05 and 200 ml/hour.
The pump keeps the running total of the volume infused, and a history of events as they
occur. About 1,500 events can be logged, complete with the date and time of each.
This compact and robust pump can be used on either a table top or mounted via its pole
clamp to an IV (Intravenous) pole. The pump’s history can either be viewed on the screen or
output to a printer.
Security cover
An RS232 interface link connects the pump to either a printer or a computer. This allows the
pump’s history to be printed or externally monitored.
Safety features are built into the pump and its software. This includes a set of self test
routines which are run when the pump is switched on.
Users are warned of such incidents as occlusion or power failure by both visible and audible
alarms.
The pump can be powered from either an AC supply or internal rechargeable batteries.
The batteries can power the pump for at least two and a half hours from a fully charged
condition.
A DC version of the 3200 also exists, that requires an input supply of 10 V to 28 V DC (see
Chapter 9).
This Manual refers to pumps that have software Version 2.20 installed. Software versions
other than 2.30 may show slight deviations from certain features described in this Manual.
An optional security cover kit is available (part number 0131-0277). The kit includes all the
items required to modify the pump, including comprehensive fitting instructions. When fitted,
the kit protects the syringe from tampering only; it provides no other security. It does not
lockout the keypad or give audible or visual alarms when opened.
3200 Service Manual1 — 1
Issue 5 (August 2004)
Introduction
Smiths Medical International Ltd.
1 — 2
Figure 1.1 Itemised front view of the pump
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Features
Features
Microcontroller
The key features of the 3200 are as follows:
•In-line (wet-side) pressure sensing,
•automatic syringe size sensing,
•up to 1500 History events storage,
•universal AC supply powered or battery powered,
•can be Configured to work with a range of syringe brands,
•advanced safety features,
•state-of-the-art electronics,
•clear text display,
•comprehensive range of alarms,
•RS232 interface,
•simple to use and service,
•all materials used in this product are latex free.
The pump makes use of a sophisticated micro-controller which combines microprocessor
facilities with the following:
•0n-board non-volatile memory,
•RAM,
•ROM,
•an analogue-to-digital converter,
•communications circuitry,
•four 8-bit pulse-width modulated outputs,
•an internal watchdog (COP).
These facilities are usually provided by many separate silicon chips, the use of a single
micro-controller greatly increases the pump’s reliability.
3200 Service Manual1 — 3
Issue 5 (August 2004)
Specification
Specification
Smiths Medical International Ltd.
AC power
supply:
Battery type:
Battery life:
DC input
operation:
Syringe brands
and sizes:
100 V to 240 V at 50/60 Hertz, 40 VA.
The power supply uses primary switching in order to utilise the AC supplies of most
countries.
Sealed lead acid, rechargeable (Cyclon, 3 off). Smiths Medical recommend that the
batteries are checked at least annually (see page 5-10).
More than 2.5 hours of normal pump operation when the batteries are fully charged.
With the AC supply connected, up to 14 hours are required to fully recharge low voltage
batteries.
3200 DC variant pump.
10 V to 28 V DC at a maximum of 4 amps input supply (see Chapter 9).
BD Plastipak...5, 10, 20, 30/50 and 50/60 ml.
Injectomat...10 ml and 50 ml.
IMS Pumpjet...30 ml, prefilled.
Monoject...5, 10, 20, 30/35 and 50/60 ml.
Braun Omnifix...5, 10, 20, 30 and 50/60 ml.
Terumo...5, 10, 20, 30/35 and 50/60 ml.
Infusion rates
and increments:
Mass unit
programming
range:
BD Plastipak (A)... 5, 10, 20, 30/35 and 50/60 ml.
The BD Plastipak (A) syringe accommodates the American manufactured 10 ml syringe,
which differs slightly in length to the European version. All other syringe sizes in the BD
Plastipak selection are identical to the standard BD Plastipak syringes.
Braun Perfusor...Optional (see Chapter 8).
RatesIncrements
0.05 to 1.0 ml/h...0.01 ml/h
1 to 200 ml/h...0.1 ml/h
0.01 to 999 mg/kg/h
0.01 to 999 mg/kg/min
0.01 to 999 µg/kg/h
0.01 to 999 µg/kg/min
0.01 to 999 mg/h
0.01 to 999 µg/h.
Patient weight...0.4 to 200 kg.
Drug mass...1 µg to 999 mg.
Drug volume...1 ml to 60 ml.
Volume infused
counter:
1 — 4
0 to 999.9 ml in 0.1 ml increments.
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Specification (contd.)
In-line occlusion
pressure range:
Using a 30 ml sized syringe:
0 to 7.42 kg (1000 mmHg).
0 to 1355 cmH2O.
0 to 133.3 kPa.
0 to 1316 mBar.
0 to 19.34 psi.
Using a 50 ml syringe, 0 to 4.83 kg (0 to 650 mmHg).
Specification
Internally adjustable
occlusion pressure:
Factory set occlusion:
Display languages
available:
Dimensions:
Weight:
Temperature
range:
Drive accuracy:
Using a 50 ml syringe, 1.85 kg (250 mmHg) to 4.83 kg (650 mmHg).
350 x 195 x 115 mm, with pole clamp fitted and plunger clamp closed.
Not exceeding 3.5 kg including the batteries and pole clamp.
Operating conditions:
+5°C to +40°C, 30 to 75% Rh, 700 to 1060 hPa.
Storage conditions:
-40°C to +70°C, 30 to 90% Rh, 700 to 1060 hPa.
±2%.
History:
Electrical safety:
Design standards:
UK patent number:
Printer protocol:
1500 events can be stored.
Class II
Type CF
Drip proof IPX1.
BS5724 Part 1
IEC601 Part 1
VFG1046/1984.
2229497.
Serial, 8 bits, no parity, 1 stop bit.
3200 Service Manual1 — 5
Issue 5 (August 2004)
Development of 3000 series
Smiths Medical International Ltd.
Brief history of Graseby bedside syringe pumps
MS2000
The first Graseby bedside syringe pump was the MS2000. This was a basic syringe pump capable of infusions within
the range of 0.1 ml/hr to 99.9 ml/hr. It had a totaliser, a limited infusion capability, a built-in pole clamp and was
designed for vertical operation. The MS2000 was powered by an AC supply or its internal DC batteries. This pump is
no longer manufactured.
PCAS
The PCAS pump was developed from the MS2000 to satisfy the growing interest in Patient Controlled Analgesia
(PCA). The PCAS was very similar to the MS2000 in both appearance and mechanical design, but used a different
microprocessor with the capability of running the extra features required for PCA. It was eventually replaced by the
3300 pump. A printer port was also incorporated. This pump is no longer manufactured.
3000
The first pump in the 3000 Series of syringe pumps was the 3000. This pump was a low-cost alternative to the
MS2000 and satisfied the need for a horizontally mounted pump. The 3000 did not have an internal battery supply.
This pump is no longer manufactured.
3100
The 3100 syringe pump was developed from the 3000. It is very similar mechanically but with improved electronics.
Dual processors were incorporated, with a vacuum fluorescent text display and internal batteries. The maximum
infusion rate was increased to 199.9 ml/hr and different syringe sizes were able to be used (automatically sensed).
Extra software features, such as the intelligent ‘near end’ alarm, were also incorporated.
3300
The next bedside syringe pump to be developed was the 3300. This was similar in mechanical and electronic design
to the 3100 but the features were specifically for the now more mature PCA market. A lockable syringe cover was
added for security against drug theft; a four line LC display was added and internal history recording (1500 events)
with printout was also added. With the growth in PCA knowledge in the medical community, many more software
features were incorporated into the 3300 to aid PCA administration.
3400
The 3400 was developed (again from the 3100) to satisfy the need for a high speed infusion pump for intravenous
anaesthesia. Advances in micro-controller technology allowed the use of a single device to control all the pumps
features. The maximum infusion rate was raised to 1200.0 ml/hr and bolusing facilities were also added. An infusion
rate calculation facility was later added to the software.
A larger liquid crystal display was used on the 3400 with the ability to display text in different sizes, also ‘soft-keys’
were used to make the user interface simpler. The range of syringe sizes that could be used was also increased.
For more advanced applications the pump could be controlled by a computer.
3200
The 3200 was developed as a general purpose syringe pump. Wet-side pressure sensing, intermittent infusion
capabilities, and computer interfacing were added. The wet-side occlusion pressure monitoring made the pump
particularly suitable for use in intensive-care baby units. A large text vacuum fluorescent display was added, and the
increased syringe size range of the 3400 remained.
A DC input supply (10 V to 28 V DC) version of the 3200 is also manufactured by Smiths Medical. This variant is
primarily intended for use in an aviation environment, but may be utilised in an environment where the required DC
voltage exists.
3500
There are two versions of the 3500, as follows:
1. A Manually Controlled Infusion (MCI)
2. An MCI
The 3500 was developed from the 3400 and retains all the 3400 facilities.
The ‘MCI
module manufactured by Zeneca Pharmaceuticals. A new main circuit board and new software allows the 3500 to
interface with the Diprifusor module. A 3500 non-TCI pump can be converted to become a 3500 plus TCI pump.
3150
The 3150 is very similar to the 3200 general purpose pump. The main difference being that the In-line (wet-side) pressure
sensing system in not available on the 3150, i.e. the pressure transducer is not fitted.
1 — 6
plus
a Target Controlled Infusion (TCI) pump.
plus
TCI’ pump carries out a TCI using the Diprivan drug. This version of the 3500 incorporates a Diprifusor
only
pump.
Issue 5 (August 2004)
3200 Service Manual
CHAPTER 2
CONFIGURATION, DIAGNOSTICS
and OCCLUSION THRUST
3200
In-line Pressure Syringe Pump
Smiths Medical International Ltd.
CHAPTER 2
CONFIGURATION, DIAGNOSTICS and OCCLUSION THRUST
Configuration mode
WARNING
The Configuration mode must only be used by personnel who are
adequately qualified and have had previous training in the use of the 3200.
Configuration mode
Introduction
The Configuration mode allows the various different pump parameters to be displayed, which
in turn allows various settings within these parameters to be set to the values required for the
infusion.
The full list of Configuration parameters is shown below, but the availability of some parameters
depends upon the setting of other parameters. Each parameter is further detailed in the
sections that follow this list:
1.Syringe brand.
2.Syringe size.
3.Lock program values.
4.Max infusion rate.
5.Select pump modes.
6.Preset volume mode with time.
7.KVO rate.
8.Allow mass unit.
9.Infusion units, mg/kg/h.
10.Infusion units, µg/kg/h.
11.Infusion units, mg/kg/min.
12.Infusion units, µg/kg/min.
13.Infusion units, mg/h.
14.Infusion units, µg/h.
15.Show rate in ml/h while infusing.
16.Use pressure transducer.
17.Display pressure bar graph.
18.Allow bolus while running.
19.Allow rate change while running.
20.Intermittent mode start delay.
21.RS232 Baud rate.
22.Communication mode.
23.Pump ID.
24.Set key beep volume.
25.Pressure units.
26.End of menu.
3200 Service Manual2 — 1
Issue 5 (August 2004)
Configuration mode
Entry into the Configuration mode
With the pump switched on and in the set-up mode, complete the following procedures to
enter the Configuration mode.
Press and hold down the PURGE button. Press either the ▲ or ▼ button. The following is
displayed:
CONFIGURATION MODE ?
(USE WITH CARE)
Within six seconds of pressing the buttons, press the START button to confirm the
configuration mode.
Note:
If the START button is not pressed within six seconds, the pump returns to
its set-up mode.
A display similar to the following will be shown:
Smiths Medical International Ltd.
Changing a
setting
Moving to the next
parameter
SYRINGE TYPE=
BD PLASTIPAK
Press the ▲ or ▼ button sequentially to scroll through the settings available within each
parameter. The setting required must be displayed.
The various settings are retained by the pump until the Configuration mode is re-entered
and the setting reset.
Press the ENTER button to move to the next parameter. If a new choice is required,
repeat the above. Sequentially pressing the ENTER button scrolls through the available
Configuration parameters.
To exit the Configuration mode and return to the set-up mode press the STOP button at
any time.
2 — 2
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Available Configuration mode parameters and settings
Configuration mode
Syringe brands
Syringe size
Lock program
values
1.
2.
3.
WARNING
The pump must be set to operate with the brand and size of syringe that
is going to be used. Using a different brand to that selected could lead
to the incorrect amount of drug being administered, resulting in injury or
death.
The syringe parameter allows a choice of any one of eight different syringe brands to
be pre-selected and used during an infusion.
This parameter allows the five syringe sizes that are available to be locked to any one
size, thus excluding the other four settings, or NOT LOCKED in order to accept all five choices.
Choice:5 ml ONLY
10 ml ONLY
20 ml ONLY
30 ml ONLY
50/60 ml ONLY
NOT LOCKED
After the required infusion program values have been set into the pump (i.e. during the
set-up mode) this parameter allows these set-up program infusion values to be temporarily locked in. This prevents tampering and is useful for home treatment.
Max infusion
rate
The lock must be turned off (i.e. the lock program value set to NO) to change the set-up
infusion mode.
Choice:YES or NO
This parameter allows the maximum infusion rate to be set. Above the set rate, an
4.
alarm message is displayed; the pump will not infuse.
The infusion rate that is initially entered into the pump in the set-up mode acts
independently of the maximum infusion rate that can be entered in the configuration
mode.
The configuration mode maximum rate setting takes priority with respect to the
maximum infusion rate that can be used.
The Instruction Manual details the maximum infusion rates for the five different syringe
sizes that are available.
Choice:10 to 200.0 ml/h in 0.1 ml steps.
(contd.)
3200 Service Manual2 — 3
Issue 5 (August 2004)
Configuration mode
Smiths Medical International Ltd.
Select pump
modes
Preset volume
mode with
time
KVO rate
Allow mass
units option
7.
8.
5.
This parameter shows the versatility of the 3200 by allowing five different combinations of the three modes of infusions to be pre-selected.
Choice:ALL MODES AVAILABLE
CONTINUOUS & PRESET
INTERMITTENT ONLY
PRESET VOLUME ONLY
CONTINUOUS ONLY
6.
This parameter allows either a preset volume with time (YES selected) or a preset
volume with rate (NO selected).
Choice:YES or NO.
This parameter allows either a KVO rate of 0.50 ml/h or 0.05 ml/h to be chosen.
Choice:0.5 ml/h or 0.05 ml/h.
When YES is chosen this parameter allows any one of the six mass units to be
selected [see parameters (9) to (14)].
When NO is chosen this parameter allows only ml/h to be selected.
Choice:YES or NO
Infusion units
9.
10.
11.
12.
13.
14.
Show rate in 15.
ml/h while
infusing
When YES is chosen from parameter (8), parameters (9) to (14) allow any combination
of mass units from the following list:
mg/kg/h.
µg/kg/h.
mg/kg/min.
µg/kg/min.
mg/h.
µg/h.
Choice:YES or NO for each parameter.
This parameter allows the infusion rate, when set to mass units, i.e. YES, to also be
displayed in ml/h when infusing.
Choice:YES/NO
(contd.)
2 — 4
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Configuration mode
Use pressure 16.
transducer
Display17.
pressure
bar graph
This parameter allows a selection of in-line pressure sensing options.
If YES is chosen, the pump senses the presence of a syringe extension set and shows
the in-line pressure on the display.
If the extension set is not being used, choosing YES causes the following prompt to
appear when the START button is pressed...
Press START to run without disposable
This display serves as a warning that the extension set is not being used. Pressing the
START button a second time runs the pump without the extension set.
Choosing NO also allows the pump to run without the extension set.
Choice:YES or NO
This parameter allows the pressure bar graph to be displayed when YES is chosen.
If NO is chosen, the display will be similar to the following:
Allow bolus 18.
while running
Allow rate 19.
change while
running
Intermittent 20.
mode start
delay
RS232 Baud 21.
rate
10 mmHg (75)
Choice:YES or NO
If YES is chosen this parameter allows the PURGE button to infuse a bolus when the
pump is running.
Choice:YES or NO
If YES is chosen, this parameter allows the infusion rate to be changed during the actual
infusion.
The infusion can thus be titrated to the physiological response of the patient.
Choice:YES or NO
In the Intermittent mode, this parameter allows a start delay between 0 and 24 hours to
be chosen before the intermittent regime is started.
Choice:YES or NO
This parameter allows a choice of Baud rates when the pump is connected to a PC or a
printer.
Choice:9600
4800
2400
1200
600
300
(contd.)
3200 Service Manual2 — 5
Issue 5 (August 2004)
Configuration mode
Smiths Medical International Ltd.
Commun- 22.
ication mode
Pump ID 23.
This parameter allows a computer to interrogate both the information stored in the pump
and the pumps status.
Choice:MONITORthis choice allows an external computer or a printer to
ONLY..be connected to the pump.
NONE...this choice ensures that a computer cannot be used to
monitor the pump.
Contact Smiths Medical (Customer Support) for information on setting up a computer
link.
The identification (ID) of the pump appears on the initial power up display. It also
appears on the printout.
This parameter allows an ID of up to 12 alphanumeric characters to be chosen.
To change the pump’s ID use the START, ▲ or ▼ and ENTER buttons, and press STOP
when finished.
A typical ID display is shown below:
GRASEBY-3200
Set key 24.
beep
volume
Pressure units 25.
End of menu 26.
The pump ID accepts 12 characters exactly. A blank space is not provided.
This parameter allows the sound of the key beep to be adjusted so that it is at an
appropriate level for the existing environment.
Choice:1 to 10.
1 is quiet.
10 is loud.
As the choice is altered from 1 to 10, the sound level increases.
This parameter allows any one of five choices to be made for the in-line pressure
sensor display, as shown below:
Choice:mmHg.
mbar.
cmH2O.
psi.
kPa.
Press the STOP button to exit from the configuration mode.
2 — 6
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Diagnostic mode
Diagnostic
mode
Introduction
Entry into the
Diagnostic mode
WARNING
The Diagnostic mode must only be used by personnel who are adequately
qualified and have been trained in the use of the 3200.
The Diagnostic mode has seven available options which can be used to view, select and
complete the procedures detailed in the following sections.
The Diagnostic options are:
•Software version.
•Calibrate transducer.
•Battery voltage.
•Language.
•Number of faults.
•Total volume infused.
•Total hours of use.
To enter the Diagnostic mode, complete the following procedures with the pump switched
on:
Press and hold down the ALARM button and press either the ▲ or ▼ button. The following is displayed:
Moving to the
next display
DIAGNOSTIC MODE ?
(USE WITH CARE)
Within six seconds of pressing the buttons, press the START button to confirm the Diag-
nostic mode is required:
Note:
If the START button is not pressed within six seconds of the display
appearing, the pump will return to its set-up mode.
A display similar to the one shown below appears:
SOFTWARE VERSION=
2.30
Press the ENTER button to move to the next display. Sequentially pressing the ENTER
button scrolls through the available Diagnostic displays.
Press the STOP button at any time in order to exit the Diagnostic mode and return to the
set-up mode.
3200 Service Manual2 — 7
Issue 5 (August 2004)
Diagnostic mode
Diagnostic displays
Smiths Medical International Ltd.
Software 1.
Calibrate 2.
transducer
The software display shows the version of software installed in the pump. It is similar to
the following display:
SOFTWARE VERSION=
2.30
To calibrate the transducer, both a syringe extension set and a mercurial sphygmomanometer
(or a similar pressure reading device) are used.
Insert the pressure sensing disc into the pump’s sensor housing and attach the disc to the
pressure reading device.
In the Diagnostic mode, scroll through the displays until the following display appears:
PRESS START TO
CALIBRATE TRANSDUCER
Press the START button and the following display is shown:
SET ZERO mmHg
AND PRESS START
Set the pressure reading device to zero mmHg and then press the START button.
The following two displays automatically appears:
ZEROING
PLEASE WAIT
SET 300 mmHg
AND PRESS START
Set the pressure reading device to 300 mmHg and press the START button.
The following three displays automatically appear:
CALIBRATING
PLEASE WAIT
CALIBRATION
COMPLETE
2 — 8
PRESS START TO
CALIBRATE TRANSDUCER
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
After carrying out the previous display request (i.e. pressing START), press STOP to return
the pump to its set-up mode.
Diagnostic mode
Transducer
alarm
Battery 3.
voltage
Language 4.
If a fault occurs within the transducer set-up system, a pulsing loud alarm (silenceable)
occurs and the following alarm display appears:
WARNING: CANNOT
CALIBRATE TRANSDUCER
The battery voltage display is similar to the following:
BATTERY VOLTAGE=
6.9 V
Various languages may be selected and used for display purposes. The English display
selection is shown below:
LANGUAGE=
ENGLISH
The other language displays are:
Number of 5.
faults
Volume 6.
infused
Hours of use 7.
•SPRÅK= SVENSKA
•TAAL= NEDERLANDS.
•LINGUA= ITALIANO.
•SPRACHE = DEUTSCH.
•LANGUE = FRANCAIS.
The total number of faults that may have occurred to the pump since manufacture is
displayed when in this parameter:
NUMBER OF FAULTS=
1
The total volume of liquid that has been infused since the pump was manufactured is
displayed when in this parameter:
TOTAL VOLUME INFUSED
0.06 litre
The total number of hours that the pump has been switched on is displayed when in this
parameter is selected:
TOTAL HOURS OF USE=
9.0 hours
3200 Service Manual2 — 9
Issue 5 (August 2004)
Setting the clock
Setting the clock
Smiths Medical International Ltd.
The time and date may be viewed; if required, both may be reset. The procedures for
entering and setting the clock are detailed below.
Entering the
clock display
Simultaneously press the...
ALARM, ENTER and DISPLAY button,
and a display similar to the one shown below appears:
SET CLOCK ?
15:19:22 31-AUG-2003
Within six seconds of pressing the buttons, press the START button to amend the time
and/or date.
Note:
If the START button is not pressed within six seconds of the display appearing
the pump returns to its set-up mode.
A display similar to the one shown below is displayed:
NEW TIME=
15:19:22 31-AUG-2003
Initially the hours indication in the above display blink on-and-off. Use the ▲ or ▼ buttons
to set the hours.
By pressing the START button, the
‘minutes, seconds, day, month and year’
can in turn be highlighted. Use the ▲ or ▼ buttons to change any selection or all of the
settings.
Press the STOP button to return the pump to the set-up mode.
2 — 10
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Disassembly and assembly of casing
WARNING
The following procedures must only be carried out by qualified technicians.
ELECTRIC SHOCK HAZARD
The pump must be disconnected from the AC power supply before opening
the casing.
The casing must be opened to carry out adjustments that may be required to the occlusion
thrust and for various repair procedures.
Repair procedures are detailed in Chapter 5.
Each time the casing separated and reassembled, the syringe size functional tests detailed
on page 6-1 must be completed.
Opening the pump casing
Taking the
casing apart
Assembly
1.Disconnect the AC power connector and utilising a scratch free flat surface, turn the
pump over to gain access to the base.
2.Undo and retain the six screws that hold the casing halves casing together. One of
the screws is situated in a channel in the rear cover.
3.From the top of the pump carefully ease the casing halves apart, taking care not to
put any strain on the internal connecting cable looms that form a hinge between the
casing halves.
Being careful not to trap any leads, assemble the casing by reversing steps (2) and (3) detailed
above. Ensure that the case halves have ‘snapped’ together and that the front and rear mating
edges are equal and parallel. Tighten the screws to a torque of between 70 and 75 cNm in the
order shown in the
1
Figure 2.1
.
3
2
GM0595-B
3200 Service Manual2 — 11
5
Figure 2.1 Case fixing screw tightening order
Issue 5 (August 2004)
4
6
Occlusion thrust
Smiths Medical International Ltd.
Occlusion
measurements
Thrust
measurements
The two most frequently used methods to measure the point at which an occlusion
occurs are the thrust and pressure methods.
Currently, the occlusion is set in the factory by using a thrust measurement procedure.
This method measures the plunger clamp thrust by using a set of weights (see next page).
The occlusion pressure is obtained by measuring the pressure that occurs in the infusion
line. The in-line method requires the use of a new syringe and infusion line. Conversion
between the two is achieved using the formulae below, taking into consideration syringe
stiction.
The 3200 has the ability to measure in-line occlusion pressure, when using the dedicated
disposal. See page 3-2.
The internal occlusion sensing system within the pump is always active.
Translation of the thrust depends on the syringe diameter and the stiction of the syringe.
The formula for calculating the thrust is given below:
T = P x A +S
732 1
where
:T = thrust in kg.
P = delivery pressure in mmHg.
A = cross sectional area of the syringe in cm2.
and
S = syringe stiction in kg.
Syringe
stiction
The occlusion thrust of the pump is factory set to be between two limits (i.e. a minimum
and a maximum tolerance). The customer may reset the thrust for their own particular
requirement. The thrust of a pump may, therefore, differ from the original factory set
levels.
The occlusion thrust of the 3200 pump is factory set to be between 3.5 kg and 4.2 kg (471
mmHg and 565 mmHg).
Stiction for a syringe varies from brand to brand as well as from batch to batch. Stiction
can be as low as 0.1 kg and as high as 2 kg. The stiction of some syringe brands has been
found to be particularly high.
Stiction can also vary along the plunger travel and is usually lowest in small diameter
syringes. Using a sample syringe and allowing for a safety margin for sticky syringes,
adjustments can be made by measuring the thrust generated. If the stiction characteristics
of a syringe are known then by using the formula given above the occlusion thrust can be
set.
2 — 12
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Occlusion thrust
Thrust checks
The following thrust checks use the weights that correspond to the factory-set occlusion
threshold levels for a 3200 (i.e. 3.5 and 4.2 kg). If a different occlusion level setting is required,
the weights must be adjusted accordingly.
The thrust adjustment procedures are shown on page 2-14.
1. Set the pump's plunger clamp to approximately midway along its support tube.
2. Remove the plunger from a BD 60 ml syringe and saw the end off the syringe. Place the
modified syringe onto the pump so that it will act as a guide for the weight support rod and
also position the size sensor flag (see
3. With the pump switched ON, set the infusion rate to 200 ml/hr.
4. Place the pump in a vertical position, with its left hand side uppermost (see
5. Place the weight support rod through the modified syringe and onto the pump's plunger
clamp.
6. Place a weight of 3.5 kg on top of the weight support and check that the pump operates for
between 30 and 60 seconds and does not occlude (i.e. the alarm does not sound). Remove
the weight.
7. Place a weight of 4.2 kg on top of the weight support and check that within 60 seconds the
pump does occlude (i.e. the alarm sounds).
Figure 2.2
).
Figure 2.2
).
Figure 2.2 Thrust measuring set up
3200 Service Manual2 — 13
Issue 5 (August 2004)
Occlusion thrust
Smiths Medical International Ltd.
Thrust
adjustments
If the occlusion thrust requires adjustment, the following procedures must be completed:
1.Switch the pump off and disconnect the AC supply.
2.Take the casing apart (see page 2-11).
3.If necessary, rotate the leadscrew to reveal the grub screw located on the occlusion
adjusting nut. Loosen the grub screw with a 1.5 mm hexagonal key.
4.Alter the setting of the occlusion adjusting nut as necessary. One full turn of the
adjusting nut using a 50\60 ml syringe gives approximately 2.73 kg (369 mmHg) of
adjustment.
Rotating the adjusting nut to decrease the tension on the leadscrew spring. This decreases the
pump's occlusion setting.
Rotating the adjusting nut to increase the tension on the leadscrew spring increases the
pump's occlusion setting.
5.Tighten the grub screw to a torque of 15 ± 2cNm.
6.Temporarily assemble the two halves of the pump, being careful not to trap any
leads.
7.Complete a thrust check (see page 2-13).
8.To obtain the thrust required it may be necessary to repeat steps (2) to (7) above.
9.Assemble of the pump casing (see page 2-11).
10.Complete tests No. 9 and 10 detailed in the functional test procedures (see page 6-3).
2 — 14
Issue 5 (August 2004)
3200 Service Manual
CHAPTER 3
FUNCTIONAL DESCRIPTIONS
3200
In-line Pressure Syringe Pump
Smiths Medical International Ltd.
CHAPTER 3
FUNCTIONAL DESCRIPTIONS
Functional descriptions
Introduction
Drive system
Introduction
This Chapter explains how the 3200 operates. Reading this chapter will help a technician to
rectify any possible faults that may occur within the pump.
The functional descriptions of the 3200 may be divided into six separate areas. Each of these
functional descriptions are detailed separately in the sections following this list:
•Drive system.
•Internal occlusion system.
•In-line occlusion system.
•Electro/mechanical control system.
•Sensing (alarm) systems.
•Software.
The motor, gearbox, leadscrew and associated components (Figure 7.1) are mounted on a
glass reinforced polycarbonate casing. The strength of this casing enables a precise
mechanical location to be achieved for the various components.
Stepper motor
and leadscrew
Microcomputer
Toggle
mechanism
Both the inner and outer metal tubes are made of substantial material in order to eliminate
unwanted flexing.
The drive system comprises a stepper motor working through a gearbox which rotates a
leadscrew. A half nut/super nut assembly engages onto the leadscrew, and the assembly
is also connected to a steel tube. The steel tube is connected to the plunger clamp.
The rotation of the leadscrew moves the plunger clamp. This movement pushes ‘in’ the
plunger on the syringe being used (see below).
As the motor spindle rotates, the leadscrew also rotates and the half nut/super nut assembly travels to the left - along the leadscrew. The half nut assembly pulls the outer of two
steel tubes to the left. This outer tube travels over and along a support tube; the support
tube is almost the length of the pump.
The microcomputer and its associated software determines the speed of the motor.
A spring-loaded toggle mechanism is attached to the bottom of the half nut/ super nut. The
toggle mechanism enables the plunger clamp to be physically swung ‘in or out’ thus rotating
the outer metal tube so that the half nut is either fully ‘engaged or disengaged’ (respectively)
from the leadscrew.
3200 Service Manual3 — 1
Issue 5 (August 2004)
Occlusion system
Smiths Medical International Ltd.
Plunger clamp
When the plunger clamp is pulled down, the half nut/super nut engages with the leadscrew
and the clamp engages with the end of the syringe.
The syringe plunger slots into place behind a slotted pair of lips. These lips prevent the
syringe plunger from moving forward in the event of negative pressure on the syringe.
Two small push-buttons on the edge of the plunger clamp make contact with the top of the
syringe plunger. These push-buttons control the operation of a lever which protrudes from
the plunger clamp.
When the push-buttons are pressed in, by coming into contact with the top of the syringe,
the lever becomes free and is able to retract into the plunger clamp. This retraction takes
place when the plunger clamp is physically swung into its down operating position.
If the push-buttons are not pressed ‘in’, the lever is locked in its protruding position thus
preventing the plunger clamp from being pulled down. This in turn prevents the half nut
from engaging on the leadscrew.
This push-button safety system prevents the leadscrew from being engaged unless the
top of the syringe is correctly positioned in the plunger clamp.
If the plunger clamp is accidentally dislodged during an infusion, the pump will automatically
and safely stop infusing. The alarm will sound.
Internal occlusion system
An occlusion sensing assembly located at the left hand end of the leadscrew (Figure 7.1)
causes the rotating leadscrew to turn a slotted disc. The rotation of this disc is detected
by an opto-sensor.
A spring mechanism at the right hand end of the leadscrew provides the pressure that is
required in order to overcome any slight resistance from the syringe plunger.
If an occlusion occurs in the syringe line and the occlusion pressure is sufficient to overcome the spring pressure, the leadscrew moves slightly to the right, thus losing contact
with the clutch. The slotted disc stops rotating. This non-rotation of the slotted disc is
detected by the opto sensor and an occlusion alarm is generated.
This method of occlusion detection is extremely sensitive as it is the lack of pressure on
the clutch that generates the alarm, rather than a detection of the movement of the
leadscrew, as used in traditional designs (UK patent no. 2249497).
In-line occlusion system
The method of directly measuring the pressure in the infusion line allows a more accurate
measurement of the lower occlusion pressures to be made, thereby making the pump
ideally suited for neonatal infusions.
The infusate flows through a disposable pressure sensing disc which is part of the pressure sensing assembly (Figure 7.1).
3 — 2
The sensing disc has a chamber which is covered by an elastic membrane. As the pressure in the infusion line increases, the pressure exerted on the membrane also increases.
The membrane in turn presses against a pressure transducer mounted on the side of the
pump. The pressure transducer is covered by an insulating film to prevent the ingress of
foreign particles.
(contd.)
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
The above action causes a voltage proportional to the pressure in the infusion line to be
input to one of the channels of the 8 bit A-to-D converter in the micro-controller.
If the output from the A-to-D converter exceeds the predetermined value set by the user,
an in-line occlusion alarm is generated.
The presence of a pressure sensing disc on the pump is confirmed by an opto-sensor
which is located at the bottom of the sensor housing. If the sensor detects that the sensing disc has been removed during an infusion, an alarm is generated.
Electro/mech control system
The microprocessor provides the pulse train for the stepper-motor to produce the set flow
rate. The rotation of the leadscrew slotted disc (see page 3-2, Internal occlusion system) is
monitored by the opto-sensor.
If the appropriate pulses are not detected by the opto-sensor, an alarm is generated.
The mechanical characteristics of the system are:
•motor step angle:15 degrees
•gearbox reduction ratio:210:1
Electro/mech control system
•number of motor5,040 at all times
steps per revolution
of leadscrew:
•leadscrew pitch:1.5 mm
•syringe characteristic:1 ml/1.8 mm (BD 60 ml syringe)
Sensing (alarm) systems
Introduction
End of infusion
Syringe nearly
empty
AC power
failure
In addition to the occlusion sensing system (page 3-2), the following sensing systems are
also operative within the pump.
A metal flag protrudes from the left hand side of the half nut in parallel with the leadscrew.
As the syringe plunger reaches the end of its travel, the flag de-activates opto-sensor OPT00
situated on the opto sensors board. When the microprocessor detects that this sensor is deactivated and the slotted disc is no longer rotating, it generates an END OF INFUSION/EMPTY
alarm.
When the metal flag de-activates opto-sensor OPT00 and the slotted disc is still rotating the
microprocessor makes a calculation (dependent upon the infusion rate) and issues a NEARLY
EMPTY alarm three minutes before the end of the infusion.
The sensing system will detect an AC power failure.
The pump continues to run after an AC power failure for a period of 2.5 hours or more by
switching automatically to the pump’s internal (fully charged) batteries.
3200 Service Manual3 — 3
Issue 5 (August 2004)
Sensing (alarm) systems
Smiths Medical International Ltd.
Battery voltage
low
Self tests/pump
malfunction
Drive
disengaged or
syringe not
fitted
Syringe sizing
system
The sensing circuits incorporate a system that monitors the output of the batteries and
registers an alarm if the voltage of the batteries drops below 5.75 V.
If the voltage falls below 5.4 V the pump turns itself off after an initial warning period.
At switch on the pump completes various self tests. In addition, the rotation of the slotted
disc at the end of the leadscrew is monitored to ensure that the drive mechanism is operating
correctly.
The software continually checks itself for the validity of the calculations.
The pump’s drive system is designed so that it is only engaged when the top of the syringe
is correctly positioned in the plunger clamp.
If the plunger clamp is displaced during an infusion, the drive automatically stops due to the
disengagement of the half nut. The disengagement of the half nut is detected by an optosensor.
If the pump tries to operate without a syringe, or with a syringe incorrectly fitted, the pump
goes into an alarm state.
The syringe sizing system comprises a flag moulding assembly (Figure 7.2) that rests on the
barrel of the syringe. In conjunction with three size sensors (Figure 7.6), it measures the
diameter of the syringe being used.
Rate setting
The flag moulding rotates about the outer of the two guiding tubes and moves an actuating
flag between the three size sensors.
The flag is able to de-activate the three size sensors in any one of the following combinations:
none; 1; 1-2; 1-2-3; 2-3 or 3.
Depending on the operation of the size sensors, the pump monitors the size of a syringe as
being 5 ml, 10 ml, 20 ml, 30 ml or 50/60 ml.
Alternatively, if a syringe is not fitted onto the pump or a syringe smaller than 5 ml is fitted,
then the
SYRINGE INVALID
alarm is activated.
For each size of syringe, there is a maximum rate at which the pump is able to infuse. The
syringe size maximum rate can be constrained to an absolute maximum rate by using the
associated parameter within the Configuration mode.
When an infusion is started, the pump checks that the maximum rate constraints have not
been exceeded.
3 — 4
In Intermittent mode, an alarm message is given if any of the following conditions occur:
•the dose volume is too large,
•if the background rate is too high,
•if the cycle time is too short, or
•if the sdose duration is too long or too short.
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Software
Cannot zero
extension set
Cannot
calibrate
extension set
Communications
(RS232) failure
Software
Self tests
When the pump is switched on with a disposable syringe extension set fitted, the user is
alerted that an auto zero has not been carried out.
An alarm is generated if an extension set calibration is unsuccessful.
A range of 0 to 1000 mmHg is specified for the extension set, with an offset of +/-100
mmHg. If this offset is exceeded, an unsuccessful calibration alarm is generated.
If the extension set is removed from its housing while the pump is running an alarm condition will be activated.
When under the control of an external computer, an alarm is generated if a computer failure
or disconnection is detected.
The 3200 self tests include the following:
•ROM test (CRC-16),
•RAM test,
•power supply voltage test,
Design
•keyboard test (this test checks for shorted keys),
•stack usage test, and
•motor windings continuity test.
The program is held in a 256 Kbyte EPROM.
The configuration data and settings are stored in the processor’s EEPROM.
A 32 Kbyte RAM chip holds the history. The history will be lost if the AC supply to the pump
is switched off or disconnected and the internal batteries unplugged.
3200 Service Manual3 — 5
Issue 5 (August 2004)
CHAPTER 4
CIRCUIT DESCRIPTIONS
3200
In-line Pressure Syringe Pump
Smiths Medical International Ltd.
CHAPTER 4
CIRCUIT DESCRIPTIONS
Circuit descriptions
Introduction
Main board
This Chapter describes the action of the circuits that operate the 3200. It also shows the
associated circuit diagrams and circuit board layouts.
The 3200 contains six circuit boards as follows:
•Main.
•Regulator (power supply).
•Syringe size sensors.
•Status sensors.
•Distribution.
•Pressure sensing module.
The overall block diagram for the 3200 is shown in Figure 4.1.
The status sensor, syringe size sensor and the pressure sensing module boards provide a
mounting for the various sensors, and also junction points for the outputs of these boards,
thus enabling the outputs to be connected to other circuits.
The block diagram for the Main board is shown in Figure 4.2. It comprises the following subcircuits which are individually described in the sections that follow:
Processor core
•Processor core.
•Motor interface.
•Power control.
•Sensors and pressure sensing interface.
•RS232 serial interface.
•Umbilical connector.
•Input/output interface.
The Processor core forms part of the Main board (see Figure 4.2). It is used to process all the
operating activities of the 3200.
The Processor core circuit is shown in Figure 4.3.
The microprocessor chip (IC14) has an on-board EEPROM which stores the programmed
settings. IC14 also incorporates an on-board RAM; an Analogue-to-Digital (A-to-D) converter;
timing circuitry; 4 pulse width modulated outputs; communications circuitry and an internal
watchdog.
3200 Service Manual4 — 1
Issue 5 (August 2004)
Processor core
Smiths Medical International Ltd.
The processor has the ability to address both the paged RAM and the EPROM. The 32K RAM
(IC12) is split into four 8K pages, and the EPROM (IC13) is divided into thirty-two
8 K pages. The paging system is part of the integral memory management system of the
processor.
IC15 is the microprocessor supervisor chip and has four main duties: to control the
microprocessor reset; battery backup switch-over; watchdog timer and CMOS RAM write
protection during power down.
Crystal X1 and its associated components R63, C32 and C33 form a 16 MHz oscillator,
providing clock pulses for the main-processor on pins 67 and 68.
Pins 70 and 71 on the main-processor are used to control its mode of operation. Both pins
are held high to set the processor to address the external EPROM (IC13). Pins 44 and 43
are held at Vcc and ground respectively, as the reference inputs to the processor’s built in
A-to-D converter.
Pin 21 receives pseudo non-maskable interrupts generated by the supervisor circuit in the
event of a system fault being detected.
Pulse Width Modulated (PWM) output PW3, pin 14, controls the offset trim for the pressure
sensing system, and output PW4, pin 15, controls the sounder volume. Pins 12 and 13 are
not configured as PWM outputs, they are used to activate FPSEL1 and FPSEL2 which
define which input/output chips to activate.
IC12, the RAM chip, is used as a buffer for the RS232 interface. IC12 also provides a
duplicate of critical data stored in the on-board RAM so that corrupted data may be detected.
The EPROM chip IC13 stores the system’s software.
IC16 is a real time clock, and crystal X2 provides the reference signal for the clock. When
the pump is switched on, the processor reads the time and date received from IC16, and
when the clock is changed the real time clock’s data is also changed.
The input from the pressure sensing interface circuit, SENSE1, to the A-D converter on the
processor is conditioned by a technique called dithering.
Dithering is achieved by using the signal already present on D0 ( the LSB on the data bus) as
a noise source. C40 and C41 filter this noise source signal which is then applied to the signal
from the pressure sensing interface.
Applying this dithering technique results in a noisy signal being sent to the A-D converter,
this then results in a varying output which is digitally filtered and converted to the pressure
units being displayed. The end result is that the resolution of the ADC is improved.
4 — 2
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Motor interface
Motor interface
Power control
The stepper motor is controlled by a sequence of pulses supplied from the main processor.
A common ENABLE_MOTOR signal (see Figure 4.4) and one of the four motor control lines are
fed to each AND gate. When the ENABLE_MOTOR signal is high, a pulse on one of the motor
control lines will cause one of the four power mosfet’s to be switched on, and the resulting
output pulses are used to drive the stepper motor.
The ENABLE_MOTOR signal is pulled low by the microprocessor supervisor chip IC15, when
the chip detects a watchdog timeout. R35 and R36 enable the main processor to detect
current flow through Q19 or Q20 (MOTORSENSE1) and Q21 or Q22 (MOTORSENSE0).
C26 and C27 remove any voltage spikes which may occur.
R7C and R7D are current-limiting resistors.
The ‘T’ filters L6, L7, L8, and L9 are for electro static discharge protection of the motor
interface. The diodes provide a path for the charge stored in the motor coils when the
transistors are switched off.
IC2 (see Figure 4.5) acts a linear regulator in order to provide a 5 V DC supply (Vcc) for the
logic circuits.
C11, C12 and C13 are decoupling capacitors.
IC3B and IC3C form a set/reset latch to operate the power MOSFET Q4. The latch is
triggered by a high pulse from the main processor (OFF), causing Q4 to turn off and
disconnect the power. Once tripped, the latch cannot be reset by the processor, but must
be reset by a high pulse from the keyboard ON button.
Q6, R28 and R29 form a logic level translator to shift 0 to 5 V logic levels into 0 to 7 V logic
levels for IC3, which has a permanent 7 V DC supply.
C14, C10, and R30 overcome the effects of any transients.
D5 prevents C10 from discharging into IC3B in the event of Vdd being removed.
The Vacuum Fluorescent Display (VFD) has its own independent voltage regulation circuit.
With Q7 switched on Vin will be applied to IC4, a high current 5V voltage regulator.
The output of IC4 is used to power the VFD.
The circuit comprising R23, R24, C9, bandgap references D4 and D30, and transistor Q5,
supplies a constant voltage (Vcc’) of approximately 3 V DC.
The supervisor chip transfers the power for the real time clock and RAM from the regulated
5 V DC supply, Vcc, to Vcc’ when the main power, and hence Vcc, is turned off. This
preserves any memory held in RAM and keeps the real time clock running.
LED D6 is illuminated when a voltage is present on Vac. This signifies that the AC supply is
connected to the pump.
3200 Service Manual4 — 3
Issue 5 (August 2004)
Sensors interface
Smiths Medical International Ltd.
Sensors
interface
The seven opto-sensors are split into three groups (see Figure 4.6) and these three groups are
multiplexed onto three lines into the microprocessor.
The three groups are used as follows:
•One group is used by the size sensor board.
•The second group monitors whether the pump's plunger clamp is open or closed,
whether the slotted disc used in the occlusion sensing system is rotating and whether
the nearly empty flag has entered the opto-sensing slot.
•The third group has only one member, which is used to signify whether a pressure
sensing disc has been inserted into the pump.
Q3 activates the size sensor LEDs, Q1 activates the status sensors LEDs and Q18 activates
the disc detector LED. The three transistors are activated independently and should not be
active at the same time.
R4, R5, R8, R9, R81 and R82 are current limiting resistors.
On the detection side of the opto-detectors, R77, R78 and R79 are pull up resistors. R6A, B,
C, D, R7A and R7B are current limiting resistors. Zener diodes D1, D2 and D3 are used for
electrostatic discharge protection.
When a photo transistor detects the LED associated with it, the line OPTO_0,1 or 2, will be
pulled low. This signal is then input to the microprocessor via SENSE3, 4, or 5.
R1, R2, and C1 make up the low battery voltage sensing circuit. R1 and R2 act as a
potential divider enabling the voltage between them to be input to the A-to-D converter of
the main processor.
The pressure sensing interface circuit (see Figure 4.7) consists of an instrumentation amplifier
with an adjustable offset. The Tee filters L3 and L4 along with C3, C4, R17 and R18 are for
electrostatic discharge protection.
IC1A, B and C with associated components R12 to R16, R19, R20, C5 and C6 make up the
instrumentation amplifier.
IC1D is a voltage follower and allows the processor to detect a signal on one of the inputs to
the instrumentation amplifier. R11 is a pull up resistor for op-amp IC1A.
OFFSET_TRIM (see Figure 4.7) is a PWM output signal from the processor and this signal is
attenuated by the potential divider R21 and R22. C42 smooths the PWM output to a DC
level. This DC signal is applied to the relevant stage of the instrumentation amplifier, so that
when the pressure sensor is being calibrated the zero mmHg calibration point will be
equivalent to 0.5 V, and this voltage appears at the PRESSURE output.
This PWM signal will remain constant until the transducer is next calibrated.
4 — 4
Each time the pressure sensing disc is inserted, or the pump is switched on, an auto zero is
carried out. This allows the zero pressure voltage to differ by up to ± 0.5 V of the calibrated
zero point.
If the voltage is outside these limits the pump will issue a warning and must be re-calibrated.
So the voltage on the PRESSURE output line will normally be between 0 and 1.0 V, and
exactly 0.5 V immediately after a calibration routine.
IC1D is a voltage follower and allows the processor to detect a signal on one of the inputs to
the instrumentation amplifier.
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
RS232 interface
RS232 serial
interface
WARNING
Only items of equipment that conform to EN60950 may be connected to
the 9-pin RS232 connector that is situated at the rear of the pump. This
conformity prevents the safety of the patient being compromised.
The micro controller generates an RS232 compatible signal with a 0 to 5 V output. IC5,
with ancillary components L5, R33, C18, C19, C20, C21, and C22 converts the 0 to 5 V signal
to a +/-10 V output. IC7 is supplied with a single +5 V power rail and uses two charge
pumps to create a 10 V and -10 V supply. R34 A, B, C and D are for electrostatic
protection.
The signals on the D connector are shown on Figure 4.18, and the pin connections for the
D connector are shown on Table 4.1.
Table 4.1 RS232 D connector
Pin No.Connection
1Not connected
2RxD
3TxD
4Not connected
5GND
6DSR (handshake out)
7RTS (+10 V out)
8CTS (handshake in)
9Not connected
Umbilical
connector
Input/output
serial interface
The umbilical ribbon cable connector (see
supplies to be sent between the main circuit board (front case) and the umbilical board on
the rear case.
The processor communicates with its input and output devices with a serial-in and a serial-out line.
The serial data, MOSI, is converted to a parallel output by three shift registers, IC 8, 9 and 10.
The parallel outputs are used to power the various LEDs and control the keyboard driving
sequence. The keyboard input along with the mains present signal is converted to the serial
signal, MISO, by a parallel input serial output shift register, IC11.
ICs 8 and 9 are linked so that they appear to work as a single 16 bit output serial input shift
register. The signal MOSI is common to IC8 and IC10.
The FPSEL1 and FPSEL2 lines define whether to activate ICs 8 and 9 or ICs 10 and 11.
The SCLK clock signal is fed to all four ICs.
The pump’s front panel input device consists of 11 press-buttons. The ON button when
pressed completes the circuit between pins 1 and 2 on PL3.
The remaining keys use a 3 x 4 matrix. The four lines on PL3 pins 6 to 9 inclusive are pulled
high by resistor R70A, and are connected to IC11. Each line is connected to one of the 4 rows
of the keyboard matrix.
The 3 columns of the matrix, PL3 pins 3 to 5 are connected to IC8, the parallel out serial shift
register. As each individual column is pulled low the status of each key in that column is input
to IC11.
Resistor R66 limits the current in the control lines out of IC8. The diodes D11 to D13 allow IC8
to pull the required control line low but let the remaining lines float when a logic high is applied
at the output of IC8.
Zener diodes D22 to D24 inclusive and quad resistor packs R73 and R74 form the electrostatic
discharge protection circuit.
Figure 4.9
) enables data and the circuit power
(contd.)
3200 Service Manual4 — 5
Issue 5 (August 2004)
Input/output serial interface
The remaining five output lines on IC8 are used to activate transistors Q9 to Q13 inclusive,
and these transistors control the illumination of the syringe size indication LEDs, D17 to D21.
The outputs from IC9 are used to control which group of opto-sensors are activated and also
to activate transistors Q14, Q15, and Q16: these transistors control the illumination of the
ALARM, START and STOP LEDs. Resistors R52 to R57 inclusive are current limiters.
The display is a 20 character, two line Vacuum Fluorescent Display (VFD) that is linked to the
main board by PL5.
The display data is transmitted via MOSI to IC10, which is enabled by FPSEL2. The output of
IC10 is input to the VFD by a signal from VFDSTB, when the VFD_BUSY signal signifies to the
processor that the VFD is ready to accept the next byte of data.
The supervisor chip IC15 can turn on the sounder independently of the microprocessor via
ENABLE_MOTOR. This independence occurs if the processor malfunctions and is unable to
produce its own sounder control; in which case the supervisor chip’s watchdog would timeout
thus generating an ENABLE_MOTOR control.
D28 prevents a low signal from SOUND drawing a current from IC15. Q8 and associated
components C30, R39, R40 and R41 constitute a low-pass filter which allows the PWM signal
SOUND from the micro-controller to activate the sounder. The sounder is connected to PL2.
Smiths Medical International Ltd.
Regulator
board
R3, R10, R76, C2 and Q2 enable the main processor to detect the presence or absence of
mains power. When mains power is present a low signal is applied to pin 14 of IC11.
This signal is then transmitted serially to the processor via MISO.
The pump utilizes a primary switching power supply (see Figure 4.11).
The advantages of this type of supply over a conventional secondary switching power supply
include the following:
•greater efficiency,
•larger power capability for a given size of supply, and
•a smaller transformer is needed for the equivalent power.
The regulator circuit is based on a universal input switch-mode controller, IC1 (see Figure 4.12).
IC1 uses a current mode, pulse width modulation control circuit, which allows it to operate
over a wide range of AC input voltages i.e. from at least 90 V to 270 V AC.
The regulator also provides a 7 V DC supply for the motor and the LEDs. This supply is then
used to provide a 5 V DC supply for the logic circuits
4 — 6
The regulator circuit is protected by a mains fuse, FS2. The mains supply is then filtered by
C14 and L2. R20 allows the residual charge on C14 to be dissipated when the pump is
removed from the mains supply.
The output from the bridge rectifier D7 is smoothed by C10 and transient current limited by
varistor V1. When V1 is cold, the resistance is high and current is limited. As the thermistor
warms up, the resistance decreases, allowing the current to increase. The output from VR1 is
used to start up IC1 via pin 1. It is also fed to the primary winding, pin 6 on the power
transformer.
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Once the switch-mode controller has started working, it obtains its power supply from a
bootstrap winding on pins 2 and 3 on the transformer. The power supply from the bootstrap
winding is rectified by diode D5, smoothed by C13 and regulated by the Zener diode D6.
The PWM signal output from pin 5 on IC1 controls the operation of Q3 causing it to cycle on
and off and regulate the flow of current from D7 through the primary winding. C1 and R1, C2
and R2, C3 and R4, C4 and R3 are all transient suppression circuits.
The voltage on pin 12 (IN1) of the secondary winding is rectified by diodes D1 and D3 (see
Figure 4.13). The output from D1 is then smoothed by C6 and passed to pin 4 of PL11.
The DC output from D3 is filtered by C5, C7 and L1. The link to PL11 pin 3 is protected by
a 1 amp fuse, FS1.
When the mains supply is being used there is a voltage present on pin 4 of PL11. By using
R6 and R7 as a potential divider, this voltage is used to control Q2.
When there is no mains supply, Q2 is not active and so prevents the batteries from discharging
through R8, R9, RV1 and R10.
When Q2 is activated, R8, TH1, R9, RV1 and R10 form a potential divider between the output
of D3 and 0 V. The output from this is used as the reference voltage for the adjustable
precision shunt regulator D4. Capacitor C8 is a transient suppressor.
Regulator board
PL 11 output
Thermistor TH1 varies the reference voltage according to temperature, thus compensating for
battery charging characteristics.
The feedback process occurs when the voltage at the wiper of RV1 exceeds the reference
value, D4 conducts and activates the opto-coupler IC2. The current through its photo-transistor
causes a voltage to be developed across resistor R19. This voltage is applied to IC1 which
changes the mark-space ratio of the output signal on pin 5.
An over voltage situation resulting from a malfunction in the regulator is prevented by a
crowbar protection device. When the output voltage exceeds 13 V, the Zener diode D2 conducts.
This causes a voltage to be developed across R5. This voltage is used to activate the silicon
controlled rectifier Q1 which will sink enough current to result in fuse FS1 blowing.
See
Table 4.2
for the plug PL11 connections.
Table 4.2 PL11 connections
PinOutput
1/2Ground
37 V DC when on mains or battery supply
47 V DC when on mains supply
PL12 output
3200 Service Manual4 — 7
PL12 provides a link to the rechargeable batteries and the link is protected by FS3 a 2 amp
fuse.
Issue 5 (August 2004)
Setting RV1
Smiths Medical International Ltd.
Setting RV1
The procedure for setting potentiometer RV1 is as follows:
1.Switch off the external AC power, remove the pump’s power connector and open the
casing (see page 2-11).
2.Remove plug PL11 and PL12 from the Regulator board and connect a 68 ohm, 1 watt
resistive load across pins 2 and 3 of plug PL11. Pins 2 and 3 are the two middle
pins on the connector.
Note:
A Molex connector (part number 0053-0658) enables the 68 ohm resistor to be
easily connected to the pins of PL11.
WARNING
Only a qualified technician may carry out the following procedures. With the
case open, dangerous voltages are present when AC power is applied.
3.Connect and switch ON the AC power. If necessary, adjust RV1 to give a DC voltage
across the 68 ohm load, dependent on the temperature, as shown in Table 4.3.
RV1 is located near the bottom left hand corner of the board (see Figure 7.8).
Table 4.3 Temperature/voltage range for setting RV1
4.Switch off the AC power. Remove the 68 ohm load and reconnect PL11 and PL12 to the
Regulator board. Assemble the casing (see page 2-11).
4 — 8
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Syringe size and status sensors
Syringe size
sensors
Status
sensors
Distribution
board
Pressure
sensing board
The syringe size sensors board is physically located at the centre of the lower casing. The
circuit diagram for these sensors is shown in Figure 4.14. The layout of the components
are shown in Figure 7.6.
The status sensors board is physically located on the left hand side of the lower casing.
The circuit diagram for these sensors is shown in Figure 4.15. The layout of the
components are shown in Figure 7.5.
The Distribution board routes data between each individual board and also to the umbilical
cable that connects to the Main board.
The Distribution board sits on a tray. The board and tray are situated in the lower casing of the
pump. There are seven plugs situated on the board - PL1 to PL7.
The wiring to the plugs is shown in Figure 4.16 and the layout of the connectors on the board
in Figure 7.10.
The ACAM pressure sensing board is situated in the concaved housing that is fixed to the
extreme left hand side of the pump. A six-way connector is used to route the signals to
the Distribution board.
The ACAM pressure sensing circuit is shown in Figure 4.17.
Main board
components
Regulator
board
components
Membrane
switch panel
‘D’ connector
The Main board is fixed to the pump’s top casing and the components attached to the
board are shown in Figure 7.7.
The Regulator board is located on the right hand side of the lower casing and consists of a
fused primary switching power supply. The component layout diagram is shown in Figure
7.8.
The eleven buttons and the associated connections that make up the front membrane
switch panel are shown in Figure 4.18.
The ribbon cable connections to the RS232 D connector are shown in Figure 4.19.
3200 Service Manual4 — 9
Issue 5 (August 2004)
Overall block diagram
Smiths Medical International Ltd.
OPTO
SENSORS
BOARD
(Figure 4.15)
SYRINGE
SIZE
SENSOR
BOARD
(Figure 4.14)
PL1
PL1
MOTOR
PL4
PL3
RS 232
(Figure 4.19)
PL2
DISTRIBUTION BOARD
CONNECTIONS
(Figure 4.16)
PL7
PL5
PL6
PL1
Umbilical
connector
SOUNDER
BOARD
PL4
4.3 to 4.10
PL1
MAIN
(Figures
and 7.5)
PL5
DISPLAY
PL3
MEMBRANE
SWITCH
PANEL
(Figure 4.18)
RECHARGEABLE
BATTERIES
GM0390-D
PNK
PNK
ACAM
PRESSURE
SENSOR
(Figure 4.17)
PL11
AC SUPPLY IN LINE
CHOKE (2 off)
REGULATOR
BLK
CELL1
CELL2
CELL3
RED
PL12
BOARD
(Figures 4.11,
4.12 4.13)and
PL1
PL2
AC INPUT
POWER
Figure 4.1 Overall block diagram of the 3200 system
EITHER SOT1, SOT2 OR RV1
IS FITTED AS FACTORY ADJUSTMENT
Pressure sensing
Figure 4.17 Pressure sensing circuit diagram
3200 Service Manual4 — 25
Issue 5 (August 2004)
Membrane switch panel
1
2
3
4
5
6
7
8
9
10
HEADER 10
GROUND
SCREEN
ALARMPURGEDOWNUP
Smiths Medical International Ltd.
STARTSTOPHISTORYRESET
GM0416-A
ENTER
Figure 4.18 Membrane switch panel circuit
PL2
SER_GND
1
RI
2
DTR
3
CTS
4
TD
5
RTS
6
RD
7
DSR
8
DCD
9
10
NOTE:
The RS232 Serial Interface connections to PL2 are shown on Fig. 4-18
OFF
ON
"D"
CONN
5
9
4
8
3
7
2
6
1
4 — 26
GM0417-A
Figure 4.19 Internal ribbon cable and ‘D’ connector connections
Issue 5 (August 2004)
3200 Service Manual
CHAPTER 5
FAULT CODES, CLEANING, RENEWAL
of FUSES and REPAIRS
3200
In-line Pressure Syringe Pump
Smiths Medical International Ltd.
Fault codes and repairs
CHAPTER 5
FAULT CODES, CLEANING, RENEWAL of FUSES and REPAIRS
Fault codesComprehensive fault codes have been designed into the software of the 3200, and a fault
code number has been allocated to each of the faults that may occur (
making identification of a particular fault easy to trace and rectify.
The fault codes listed below are for software Version 2.20, and these codes are not expected
to change for future software versions.
Table 5.1 Main processor fault codes
CodeFaultRecommended action
07Interference or internal circuitSee item 2 on page 5-3
Table 5.1
), thus
08Interference or internal circuitSee item 2 on page 5-3
10Motor or leadscrewSee item 4 on page 5-3
11Interference or internal circuitSee item 2 on page 5-3
12Interference or internal circuitSee item 2 on page 5-3
22Interference or internal circuitSee item 2 on page 5-3
25Interference or internal circuitSee item 2 on page 5-3
26Interference or internal circuitSee item 2 on page 5-3
30Interference or internal circuitSee item 2 on page 5-3
31Interference or internal circuitSee item 2 on page 5-3
32Interference or internal circuitSee item 2 on page 5-3
33Interference or internal circuitSee item 2 on page 5-3
34Interference or internal circuitSee item 2 on page 5-3
35Interference or internal circuitSee item 2 on page 5-3
36Interference or internal circuitSee item 2 on page 5-3
40Interference or internal circuitSee item 2 on page 5-3
(contd.)
3200 Service Manual5 — 1
Issue 5 (August 2004)
Fault codes
Smiths Medical International Ltd.
Fault codes
(contd.)
Table 5.1 Main processor fault codes (contd.)
CodeFaultRecommended action
42Interference or internal circuitSee item 2, page 5-3
43Interference or internal circuitSee item 2, page 5-3
45Interference or internal circuitSee item 2, page 5-3
46Interference or internal circuitSee item 2, page 5-3
47Interference or internal circuitSee item 2, page 5-3
51Interference or internal circuitSee item 2, page 5-3
52Interference or internal circuitSee item 2, page 5-3
54Interference or internal circuitSee item 2, page 5-3
55Interference or internal circuitSee item 2, page 5-3
56Interference or internal circuitSee item 2, page 5-3
57Interference or internal circuitSee item 2, page 5-3
58Interference or internal circuitSee item 2, page 5-3
61Interference or internal circuitSee item 2, page 5-3
64Comms. or internal circuitSee item 1, page 5-3
65Comms. or internal circuitSee item 1, page 5-3
68Comms. or internal circuitSee item 1, page 5-3
69Comms. or internal circuitSee item 1, page 5-3
74Interference or internal circuitSee item 2, page 5-3
75Interference or internal circuitSee item 2, page 5-3
76Interference or internal circuitSee item 2, page 5-3
77Interference or internal circuitSee item 2, page 5-3
(contd.)
Issue 5 (August 2004)5 — 2
3200 Service Manual
Smiths Medical International Ltd.
Fault codes
Fault codes
(contd.)
Table 5.1 Main processor fault codes (contd.)
CodeFaultRecommended action
78Interference or internal circuitSee item 2 below
79Interference or internal circuitSee item 2 below
80Interference or internal circuitSee item 2 below
81Interference or internal circuitSee item 2 below
83Interference or internal circuitSee item 2 below
85Power supply faultSee item 5 below
86Motor faultSee item 4 below
87Interference or internal circuitSee item 2 below
88Interference or internal circuitSee item 2 below
90Interference or internal circuitSee item 2 below
91Keyboard faultSee item 3 below
92Interference or internal circuitSee item 2 below
The five items shown in Table 5.2 (and cross referenced from Table 5.1) detail the
possible cause of a fault within a pump, and the recommended action to be taken:
Table 5.2 Fault cause and action
Item FaultPossible causeRecommended action
1CommunicationExternal interference...Check communication
(Comms.) fault.e.g. static interferencelink and interface cable.
or r.f. interference.
Circuit fault.Return to Smiths Medical.
2Internal fault.External interference...Relocate the pump.
5Power supply.Faulty power supply.Check the power supply.
3200 Service Manual5 — 3
Issue 5 (August 2004)
Cleaning and changing fuses
Smiths Medical International Ltd.
Cleaning
Repairs
Renewal of
fuses
Access to
fuses
WARNING
Do not immerse the pump in any liquids. Immediately wipe off any liquid
that may be spilt on the pump.
The outer surfaces of the pump can be cleaned by wiping them over with a damp cloth
(soapy if necessary).
WARNINGS
The following repairs and procedures must only be carried out by qualified
technicians.
Disconnect the pump from the AC supply before opening the casing.
The safety and reliability of the pump may be compromised by the use of parts
other than those specified in this Manual.
•FS1 is a fuse located in a DC line and has a 1 amp rating.
•FS2 acts as an AC (time delay) fuse that is rated at 500 mA.
•FS3 is a fuse located in a DC line and has a 2 amp rating.
1.Disassemble the casing (see page 2-11). This will give access to most of the
components on the regulator board.
2.To renew FS2, the protective covering over the faulty fuse must first be prised off.
The fuse can be removed and replaced with a fuse of the correct ratingand size.
3.Refit the protective covering.
4.To renew a faulty FS1 or FS3 (both are situated on the underside of the board), the
three screws that retain the board must be removed.
5.Carefully lift up the board and turn it over to reveal both fuses. Remove the faulty
fuse and replace it with a fuse of the correct rating and size.
6.Refit the board and secure with three retaining screws.
7.Reassemble the casing, being careful not to trap any leads.
Issue 5 (August 2004)5 — 4
3200 Service Manual
Smiths Medical International Ltd.
Repair procedures
Main board
renewal
Regulator
board renewal
The main board is mounted on the front casing. It is held in place by six pozi pan head
self-tapping screws.
1.Open the casing (see page 2-11).
2.Disconnect the umbilical connector (PL4) from the main board.
3.Remove and retain the six pan head fixing screws.
4.Displace the main board and then disconnect the membrane switch panel (PL3).
5.Fit a new main board by reversing steps (2) and (3) given above and then close the
casing (see page 2-11).
6.Complete tests as specified in Section 6.
The regulator board is mounted on the rear casing. It is held in place by three pan head
self-tapping screws.
1.Open the casing (see page 2-11).
2.Remove the two spade connectors and the two ribbon cable connectors from the board.
3.Remove and retain the three screws that hold the board in place.
Status sensors
board renewal
4.Remove the faulty regulator board.
5.Fit a new regulator board by reversing steps (2) to (3) given above ensuring that the
in line AC supply choke that is positioned adjacent to the rear of input connector
does not obstruct the positioning of the board.
6.Close the casing (see page 2-11).
The status sensors board is mounted on the rear case and is held in place by two pan
head self tapping screws.
1.Open the casing (see page 2-11).
2.Remove and retain the screw that holds the distribution board tray in place.
3.Remove and retain the screw that holds the plastic cable holder in place.
4.Remove and retain the two screws and washers that hold the status board in place.
5.Ease out the plastic flag from the faulty status board, as the board is lifted away
from the pump, being careful not to damage the occlusion disc.
6.Fit a new status board by reversing steps (2) to (5) given above and then close the
casing as detailed on page 2-11.
7.Carry out test No. 10 (page 6-3) and the Plunger clamp alarm test (page 6-4).
3200 Service Manual5 — 5
Issue 5 (August 2004)
Repair procedures
Smiths Medical International Ltd.
Plunger clamp
and super nut
assembly
renewal
Pole clamp
assembly
renewal
Leadscrew
assembly
renewal
The plunger clamp and super nut assembly is held in place (in the rear casing) by two guide
tubes.
1.Open the casing (see page 2-11).
2.Remove and retain the screw that holds the distribution board tray in place.
3.Remove the narrow spring from the size sensor lever arm.
4.Remove the left and right hand brackets that hold the square lay shaft in place.
5.Displace the square shaft together with the super nut and flag moulding, and remove
the entire faulty assembly by lifting the guide tube off its two seatings.
6.Fit the new assembly by reversing steps (2) to (5) given above and then close the
casing (see page 2-11).
1.Remove and retain the two screws that are inserted into the stainless steel bracket
on the base of the pump.
2.Remove the faulty pole clamp.
3.Fit the new pole clamp to the pump by placing and tightening the two screws into
the bracket.
The leadscrew assembly is held in the rear casing by two bearing clamp plates. It is also
kept under tension by a strong adjustable spring. The keyed coupling bush that screws into
the right hand end of the lead screw has a ‘left hand’ thread1.
1.Open the casing (see page 2-11).
2.If necessary run the motor on its batteries in order to reveal the small grub screw
situated in the occlusion adjusting nut on the right hand side of the leadscrew.
Using a 1.5 mm hexagon key loosen the grub screw.
3.Ensuring that the leadscrew does not turn, move the occlusion adjusting nut
counter-clockwise (i.e. towards the left) in order to relax the spring tension.
4.Remove and retain the two pan head self tapping screws holding the right hand
bearing clamp plate in place; remove and retain the plate.
5.Lift out the leadscrew, together with the motor and gear box. The motor and gear
box are coupled at the right hand end of the leadscrew.
6.Uncouple the faulty leadscrew from the motor by pulling it away from the motor
shaft.
7.Fit a new leadscrew assembly (see Note below) by reversing steps (2) to (6). Tighten
the grubscrew to a torque of 15 ± 2 cNm. Alternatively, renew the motor and gear
box assembly as detailed in the following section.
Note:
During the fitting of the new leadscrew the spring assembly may have to be
compressed to the left in order to fit it into the appropriate grooves in the rear casing.
8.Ensure that the groove on the syringe size sensor collar (through which the larger
telescopic tube slides) fits correctly into the concaved rear casing.
9.Assemble the casing (see page 2-11).
10.Carry out the relevant tests in Section 6, including the occlusion thrust checks (see
page 2-13) and also the plunger clamp checks (see page 6-3).
1
If the l.h. thread coupling bush is removed, the torque required when refitted must not
exceed 40 cNm.
Issue 5 (August 2004)5 — 6
3200 Service Manual
Smiths Medical International Ltd.
Repair procedures
Motor and
gearbox
assembly
renewal
Occlusion
clutch and
disc assembly
renewal
There is a plastic coupling between the leadscrew and the gearbox.
1.Open the casing (see page 2-11).
2.Carefully prise open the motor loom retain clip and then disconnect the motor loom
connector (PL4) from the distribution board.
3.Remove the leadscrew assembly (see page 5-6). The motor and gearbox
assembly is attached to the right hand end of the leadscrew assembly and therefore
will be removed with the leadscrew assembly.
4.Detach the faulty motor and gearbox assembly from the leadscrew assembly by
pulling the two assemblies apart.
5.Fit the new motor and gearbox assembly by reversing steps (2) to (4) detailed above
and then assemble the casing (see page 2-11).
6.Carry out the occlusion thrust checks (see page 2-13) and also the plunger clamp
checks (see page 6-3).
7.Complete the relevant tests detailed in Section 6.
The occlusion clutch and disc assembly is situated on the left hand side of leadscrew
assembly underneath the status sensor board.
1.Open the casing (see page 2-11).
2.Remove the status sensors board (see page 5-5).
3.Remove the leadscrew assembly (see page 5-6). The motor and gearbox
assembly is attached to the right hand end of the leadscrew assembly and will,
therefore, be removed with the leadscrew assembly.
4.Remove and retain the two screws and the bracket that holds the clutch and disc
assembly in place.
5.Remove the faulty clutch and disc assembly.
6.Fit a new clutch and disc assembly by reversing the steps (2) to (4) detailed above
and then assemble the casing (see page 2-11).
7.Carry out the relevant tests in Section 6, including the occlusion thrust checks (see
page 2-13) and also the plunger clamp checks (see page 6-3).
3200 Service Manual5 — 7
Issue 5 (August 2004)
Repair procedures
Smiths Medical International Ltd.
Membrane
switch panel
renewal
The membrane switch panel has an adhesive backing which fixes it to the casing. Take
care not to unduly bend the new panel or its flexible cable loom.
1.Open the casing (see page 2-11).
2.Disconnect the panel ribbon cable connector (PL3) from the main board.
3.Starting by lifting a corner, peel the faulty panel away from the case. Remove the
panel by pulling the connector out through the slot in the front casing.
4.Remove traces of old adhesive from the front case recess (a cloth lightly dampened
with white spirit may be used).
5.From the top of the new panel peel back the paper backing approximately as far as
the top of the display window.
6.Push the connector and flexible lead of the new panel through the slot in the case.
7.Align the top edge and sides of the panel with the top and sides of the case
recess. Gently rub the top edge of the panel to give light adhesion to the case and
then remove the remainder of the protective backing paper.
8.Working from the top downwards and using light pressure lay the panel into the
case recess.
9.When the label is positioned correctly into the case recess (i.e. no overhanging
edges), use a soft cloth to rub the panel down firmly pushing out any air bubbles at
the same time.
Super nut
renewal
10.Connect PL3 to the Main board and assemble the casing (see page 2-11).
Early 3200 pumps (pre s/n 56905) were fitted with a half nut. From May 1999, the half nut
was replaced with a three-quarter super nut. The following procedures refer to the super nut,
which must replace the half nut.
GM1088-A
Half nut Super nut
Figure 5.1 Half nut (obsolete)/Super nut
The super nut machined casting (see
Figure 7.2, item 3
) is clamped onto the left hand end of
the outer metal tube by an M4 countersunk screw that is tightened into a recess positioned
hexagonal nut. It is also attached to the toggle mechanism by a Spirol connecting pin.
1.Open the casing (see page 2-11).
2.Remove the plunger clamp, super nut, toggle and square shaft assembly (see
page 5-6).
3.Remove and retain the clamping screw and nut.
4.Lever the two sides of the super nut apart in order to disengage the casting pip from
the locating hole in the metal tube.
5.Remove the spirol connecting pin that holds the super nut to the toggle mechanism.
6.Fit a new super nut by reversing steps (2) to (5) detailed above and assemble the
casing (see page 2-11).
7.Carry out the relevant tests detailed in Section 6 including the plunger clamp checks.
Issue 5 (August 2004)5 — 8
3200 Service Manual
Smiths Medical International Ltd.
Repair procedures
Syringe size
sensors
assembly
renewal
Plunger clamp
repair
1.Open the casing (see page 2-11).
2.Disconnect connector PL1 from the syringe size sensors board.
3.Remove and retain the two screws that hold the sensor assembly in place. Remove
the faulty assembly.
4.If there is a thin shim attached to the faulty assembly then remove and retain this shim.
5.Fit a new sensors assembly by reversing steps (2) to (4) and close the casing (see
page 2-11).
6.Carry out the syringe size sensors test (see Section 6).
If the pump fails to pass the syringe size sensors test it is recommended that the Syringe Size
Sensors kit (part number 0137-0025) should be obtained from Smiths Medical and fitted
according to the instructions supplied with the kit (also see the Appendix).
The plunger clamp cover must be removed in order to reach the internally located lock or
pin moulding. The casing of the clamp is fixed to the right hand end of the outer tube.
1.Remove and retain the two screws that hold the plunger clamp cover onto the
casing and remove the cover.
2.The lock and pin moulding together with the associated spring will now be
accessible.
ACAM pressure
sensing
assembly
renewal
3.As required, fit a new lock and/or pin and assemble the clamp as detailed in
paragraph (1) above.
The ACAM pressure sensing assembly consists of the pressure board and its moulded
housing. Four screws attach the assembly to the metal ACAM sensor plate, and the ACAM
sensor assembly is fixed to the side of the pump by an adhesive sealant (Dow Corning
3145).
1.Open the case (see page 2-11).
2.Remove and retain the four short screws that fix the outer moulding in place.
Remove the moulding and the inner insulating film.
3.Remove and retain the four inner (longer) sealed screws.
4.Remove and retain the cable clamp screw just below the status sensors board and
remove PL5 from the distribution board.
5.Pass the connector through the hole in the case and prise off the sealed ACAM
sensing assembly.
6.Remove the faulty pressure sensing assembly from the ACAM sensing assembly.
7.Fit the new assembly by reversing the steps given in (2) to (6). Reassemble the
case (see page 2-11).
3200 Service Manual5 — 9
Issue 5 (August 2004)
Repair procedures
CORNERS
ROUNDED
TO MINIMISE
IMPACT
GM0983-A
Smiths Medical International Ltd.
Batteries.
Checks and
replacement
Checks
Replacement
WARNING
The internal pump batteries must be disposed of in accordance with the
manufacturers instructions. Lead acid batteries must
not
be placed in the
normal waste stream.
Smiths Medical recommend that the condition of the three internal batteries is checked at
least annually.
The batteries will normally last several years, but if they should fail to charge then all three
batteries must be replaced at the same time. The batteries are held in place in the front
casing by three-pronged flexible plastic mouldings.
Switch the pump on and fully charge the batteries for at least 14 hours. Remove the AC
power and run the pump at 99.9 ml/hr. If the LOW BATTERY alarm appears on the pump's
display before 2.5 hours has elapsed then all three batteries should be replaced, as detailed
below:
1.Open the case (see page 2-11).
2.Noting their orientation, prise out the three faulty batteries. Also noting the
connections remove all six spade tags.
3.Reconnect three new fully charged 2 V, 2.5 AH, lead acid, D Cell batteries by
reversing the steps detailed in (2) above, ensuring that the two rubber packing
spacers that are attached to the pillars are still in place.
Front and/or
rear case
repair
4.Close the casing (see page 2-11).
In March 1999, a new strengthened and modified front and rear case moulding for the 3000
range of syringe pumps (see
CORNERS ROUNDED TO MINIMISE
THE DAMAGE CAUSED BY IMPACT
GM0981-A
PILLAR HEIGHT INCREASED
TO MINIMISE STRESS
Figure 5.2
RIBS ADDED,
EXTRA STRENGTHENING
) was introduced.
CORNERS ROUNDED
TO MINIMISE THE
DAMAGE CAUSED
BY IMPACT
Figure 5.2 Strengthened front and rear case mouldings
If an old style front or rear case becomes damaged and requires replacing then the appropriate
repair kit is available from Smiths Medical. There are two kits (front or rear case) which each
contain all the necessary parts to carry out a repair.
The contents of the repair kits are shown in Tables 5.3, 5.4 and 5.5.
Issue 5 (August 2004)5 — 10
3200 Service Manual
Smiths Medical International Ltd.
DescriptionPart No.Remarks
Front case spares kit- English0130-0192
Front case spares kit- Other0130-0165
Case front0130-0163
Syringe clamp assembly*0131-0149
Button, moulded*0131-02162 off
Instruction leaflet0131-0156
Size sensor flag spares kit*0137-0025See
Foam spacer type 3*0131-02182 off
Case templates*0131-02352 off
Radius gauge*0131-0234Stainless steel
Case screws (6 off)5001-0345 M4x12, pozi pan
* These items may be obtained individually.
Note:
The Front panel label (membrane) for languages other than English must
be ordered separately (see item 3,
Table 5.3 Front case spares kit
Table 5.4
Figure 7.1
)
Spares kits
Table 5.4 Size Sensor Flag spares kit
DescriptionPart No.Remarks
Size sensor flag spares kit*0137-0025
Size sensor flag0132-0090
Size sensor shim (0.6 mm thick)*0130-0107
Size sensor shim (1.0 mm thick)*0130-0108
Size sensor shim (1.2 mm thick)*0130-0190
Size sensor shim (1.4 mm thick)*0130-0185
Opto moulding0130-0024 4.65 mm thick
Screws, No. 4 x 5/8 ins. Self tap5017-3410 2 off
Grub screw, M4 x 6, nylon*0131-0144
Tamper proof protective cap*0131-0136
Instruction leaflet0131-0217
* These items may be obtained individually.
3200 Service Manual5 — 11
Issue 5 (August 2004)
Smiths Medical International Ltd.
Table 5.5 Rear case spares kit
DescriptionPart No.Remarks
Rear case spares kit*0130-0171
Case rear0130-0188
Pressure sensing insulat. film0130-0031
Foam spacer type 1*0131-0204
Foam spacer type 2*0131-02053 off
Foot, rubber*0126-00282 off
Instruction leaflet0131-0156
Case screw, M4x12, pozi pan5001-03456 off
Clamp, cable5366-2820
Catch, button0128-0117
Strip, retaining0128-0118
Screw, M3x10 pozi csk5000-6317
Screw, M3x6 slot pan
* These items may be obtained individually.
Note:
The Case rear label will be Country dependent, and can also be supplied,
e.g. 0130-0156, English, 110/240 V
Issue 5 (August 2004)5 — 12
3200 Service Manual
CHAPTER 6
FUNCTIONAL TESTS
and MANUFACTURNG SETTINGS
3200
In-line Pressure Syringe Pump
Smiths Medical International Ltd.
CHAPTER 6
FUNCTIONAL TESTS and MANUFACTURING SETTINGS
Functional tests
Functional
tests
StepTestMethodCorrect result
1MechanicalBefore applying power to the unit,No damage.
2Electrical safetyFor routine electrical safety testing, Smiths Medical recommends that units
3Initial power on.Connect the AC supply.The AC LED lights.
The following functional tests have been designed to verify that the 3200 is safe to use.
Complete the tests before putting the pump into service for the first time, and then as
required.
Table 6.1 Functional tests
inspection.check that the case and exposed
mechanical parts are free from any
damage.
testsare test tested in accordance with the UK Medicine and Healthcare products
Regulatory Authority (MHRA) guideline document MDA DB9801, supplement 1
(December 1999) for Class II, Type CF equipment as a minimum.
Press ON.A bleep is heard and all LEDs
are briefly illuminated.
Following this bleep the syringe
type is displayed. The pump
then goes into its set-up mode
and the STOP and AC LED’s are lit.
4Syringe sizes.Perform with plunger clamp 40 mm
from RHS and also at extreme LHS.
Insert the following rods (in turn)
into the syringe trough.
11.2 mm.Invalid syringe condition.
12.5 to 15.0 mm.5ml LED illuminated.
16.2 to 18.2 mm.10ml LED illuminated.
21.0 to 23.0 mm.20ml LED illuminated.
23.7 to 26.8 mm.30ml LED illuminated.
29.0 to 33.1 mm.50/60ml LED illuminated.
Note:
Smiths Medical manufacture a set of 18 Syringe Size Sensor gauges,
page A-5). The Smiths Medical Customer Care Department is able to take orders for these gauges and will
supply the current price. This set of gauges enables test No. 4 to be carried out on all of the Graseby 3000
Series of pumps.
part number 0131-0202
(see Appendix,
(contd.)
3200 Service Manual6 - 1
Issue 5 (August 2004)
Functional tests
Table 6.1 Functional tests (contd.)
StepTestMethodCorrect result
5(i)Keyboard tests.Press OFF.The display is blank but the AC
AC connected.LED remains lit.
5(ii)Press ON.As above (3), Initial power on.
Smiths Medical International Ltd.
5(iii)Check that the pump can beConfirm display messages shown
programmed by using the ▲
and ENTER keys as describedconfirm that the keys change
in the Instruction Manual.the settings as required.
5(iv)Check that the
keys operate correctly as describedsince last reset, then resets to zero
in the Instruction manual.when the reset key is pressed.
5(v)Fit a syringe and move the plungerThe syringe type and size is
clamp to the closed position. Prog-displayed. The START LED flashes
ramme the pump, then press START. and the display running indicator
5(vi)Check that the bolus facility functions ALARM and START LEDs flash
as described in the Instructionand the bolus delivered is displayed.
Manual.
5(vii)Check that the change rate facility The rate of infusion changes.
functions as described in the
Instruction Manual.
5(viii)Whilst infusing, press STOP.The pump will enter its set-up mode.
History
-display/reset Display shows volume infused
▼
in the Instruction Manual, and also
arrows flash.
5(ix)Press START to commence theThe alarm sounds intermittently,
infusion and then move the plungerthe ALARM LED flashes and...
clamp to its open position.PLUNGER CLAMP OPEN
is displayed.
5(x)In the above alarm state [5 (ix] press The alarm is silenced and the pump
the ALARM key.goes into its set-up mode.
6(i)AC failure.Press START to start the infusionThe alarm will sound intermittently
and then switch off or remove theand ... AC POWER REMOVED
AC supply externally.will be displayed, but the pump
will continue running under battery
power.
6(ii)Reconnect the AC supply.The AC LED lights.
(contd.)
6 - 2
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
Table 6.1 Functional tests (contd.)
Step TestMethodCorrect result
7Linear accuracy.Set the following:Check that the plunger clamp moves
• syringe type to 60 ml BDa distance of 18 ±0.3 mm.
Use the linear accuracy• the rate to 99.9 ml.See also page 6-5.
gauge (see page 6-5).• plunger clamp to 60 ml.
Purge the system to remove any
backlash then run the pump for
exactly 6 minutes.
8Occlusion.The occlusion thrust is factory setRefer to page 2-13.
by applying an opposing force to
the syringe plunger clamp. This is
achieved by using weights.
9Plunger clampClose the clamp at mid-position.Front edge of clamp must be between
alignment.Run an infusion of at least 99.9 ml/h. 8 and 10 mm above surface of top cover.
After 5 seconds check clamp position. See page 6-5,
Note:
If this test fails then the super nut will have to be loosened, this will allow the plunger clamp to be
manipulated up or down a small distance, thus enabling the required 8.0 to 10 mm gap to be achieved.
Functional tests
Fig. 6.4 Taper Gauge
.
10Plunger clampLoad syringe and set an infusionThe alarm ...
open, leadscrewrate. Open the plunger clamp.PLUNGER CLAMP OPEN
disengaged.Press START.must be activated.
11(i) Syringe warning,Using a BD 60 ml syringe set theThe following display will appear ...
LESS THANplunger clamp to 15 ml before theLESS THAN 3 MINUTES TO KVO
3 MINUTESend of travel. Set KVO rate toaccompanied by a quiet chirping alarm,
TO KVO0.5 ml/h in Configuration mode.followed after three minutes by ...
and,Run an infusion at 200 ml/h.KVO 0.5 ml/h
KVO 0.5 ml/h.accompanied by a loud pulsing alarm.
11(ii) Syringe warnings,Set and run the pump as in 11 (i)At the end of travel ...
PUMP STOPPED,except that the plunger clamp isPUMP STOPPED: EMPTY/OCCLUSION
PUMP NOT RUNNING.set to 3 ml before the end of travel.appears accompanied by a loud pulsing
alarm, and after a delay ...
PUMP NOT RUNNING will appear.
Note:
When carrying out test No. 11(i) on a Perfusor pump ensure that the syringe is set to a minimum of 18 ml.
13 Plunger clampIf the pump is fitted with the older style half nut (see page 5-8), the Plunger clamp
alarm tests alarm tests should be performed (see page 6-4).
3200 Service Manual6 - 3
Issue 5 (August 2004)
Plunger clamp open flag
Square shaft bracket
Notch
GM1087-B
Obsolete style flag
Plunger clamp alarm checks
Smiths Medical International Ltd.
Plunger clamp
alarm checks
Ramp check procedures
The following plunger clamp alarm checks are only required on pumps fitted with the old
style half nut, and not the more recent super nut (see page 5-8).
The dual ramp gauge (
part number 0131-0084
) is used to check that the ....
PLUNGER CLAMP OPEN
alarm is operating correctly when the plunger clamp is set to two alternative infusing
positions, as shown below:
POSITION 2
L.H. RAMP
GM1086-A
POSITION 1
R.H. RAMP
Figure 6.1 Outline of dual ramp gauge
1.Fit the dual ramp gauge onto the pump.
2.Close the plunger clamp at a position that is just clear of the bottom end of the
right hand ramp.
3.Set the pump to infuse at a rate of 200 ml/h and press the START button.
4.Check that during the first 30 seconds of travel (as the leadscrew is fully
engaged), that the plunger clamp remains clear of the ramp.
5.Check that as the plunger clamp runs up the right hand ramp a ...
PLUNGER CLAMP OPEN
alarm occurs within 10 minutes of pressing the START button.
6.Repeat the above check with the plunger clamp placed just clear of the left
hand ramp.
If the pump fails the ramp gauge checks (on the earlier manufactured pumps) it is
recommended that the half nut is changed for a super nut (see page 5-8). Also ensure
that the three following modified items have been fitted:
1.A new style square shaped flag (part number 0127-0019, as shown below) in
place of the old style flag.
2.A new style shaft bracket (part number 0127-0052, as shown below). This
bracket is identified by a ‘V’ notch that appears on one of the prongs.
3.Two new thicker washers (part number 5014-3020) in place of the previously
fitted thinner washers that are used for fixing the opto sensors board.
6 - 4
Figure 6.2 Ramp check - Square/Ramp style flags
Issue 5 (August 2004)
3200 Service Manual
Smiths Medical International Ltd.
LOCKING SCREW
MODIFIED SYRINGE
DISTANCE INDICATOR
ROTARY ZEROING DIAL
Linear accuracy
Linear accuracy
Test procedures
The linear accuracy gauge (
Figure 6.3, part number 0131-0230
) when placed on the pump,
is able to check that the pump's plunger clamp moves a given distance in a specified time.
Initially, the pump will have been preset to given parameters, then set to run for a specified
time and the distance that the plunger moves being observed on the measurement dial of
the gauge.
ROTARY ZEROING DIAL
GM1209-A
DISTANCE INDICATOR
LOCKING SCREW
10
20
30
40
METAL ROD
50
ml
MODIFIED SYRINGE
60
Figure 6.3 Linear accuracy gauge
Test No. 7, see page 6-3
1.Place the gauge onto the pump with the syringe plunger almost fully extended.
2.Move the pump's plunger clamp to the left until the gauge plunger is a short distance
away from the metal rod that activates the dial indicator.
Plunger clamp
alignment
3.Turn the pump on and check that the pump shows that the syringe brand and size is
BD 60 ml.
4.Press the PURGE button until the syringe plunger just activates the gauge indicator.
This action ensures that any pump backlash is removed.
5.Rotate the outer rim of the gauge to set both dial indicators to zero.
6.Set the pump to deliver an infusion at 99.9 ml/hour.
7.Run the pump for exactly 6 minutes and check that the gauge dial records that the
plunger has moved between 17.7 and 18.3 mm.
The taper gauge (
Figure 6.4, part number 0131-0227
) enables the gap between the pump's
plunger clamp and the case to be measured accurately. This measurement is important as
it ensures that the plunger clamp will engage onto the flanges of the smaller sized syringes
correctly.
1098111 3
GM1210-A
Figure 6.4 Taper gauge
Test procedures
Test No. 9, see page 6-3
1.Switch the pump on and set the rate to at least 99.9 ml/hour.
2.Close the plunger clamp at approximately its mid-position.
3200 Service Manual6 - 5
3.Run the pump for 5 seconds.
4.Using the taper gauge, check that the front edge of the plunger clamp is between 8.0
mm and 10.0 mm above the surface of the case.
Issue 5 (August 2004)
Manufacturing settings
Smiths Medical International Ltd.
Manufacturing
settings
When the tests of
settings (if required) as shown in sequence in
The settings marked with an asterisk (*) in
selected in order to allow several other associated settings to appear in the Configuration
mode. Ultimately, the final sequence of Manufacturing settings are selected as shown in the
latter part of
1Syringe typeBD PLASTIPAK
2Syringe sizeNOT LOCKED
3Lock program valuesNO
4Max infusion rate200 ml/h
5Select pump modesALL MODES AVAILABLE *
6Preset volume mode with timeYES
7KVO Rate0.5 ml/h
8Allow mass units optionYES *
9Infusion units mg/kg/hYES
10Infusion units mg/kg/minYES
11Infusion units µg/kg/hYES
12Infusion units µg/kg/minYES
13Infusion units mg/hYES
14Infusion units µg/hYES
15Show rate in ml/h while infusingYES
16Use pressure transducerYES
17Display pressure bargraphYES
18Allow bolus while runningNO
19Allow rate change while runningNO
20Intermittent mode start delayYES
21RS232 baud rate9600
22Communication modeNONE
23Pump IDGRASEBY_3200 (see Note over page)
24Set key beep volume5
25Pressure unitsmmHg
Table 6.1
Table 6.2.
OptionSetting
Configuration mode:
have been completed, the pump can be returned to the manufacturing
IMPORTANT: When ordering a CE marked rear label, please supply the serial number
details of the Syringe Pump, if this information is not supplied then a Non-CE marked
label will be issued. It is the responsibility of the owner to ensure that the correct
labels are replaced on the pump.
3200 pumpNon CECE markedCE marked
model numbersmarkedMade in UKMade in Malaysia
serial no'sserial no'sserial no's
below 46035from 46035from 90000
0131-0001, English 240V0130-01560130-00080130-0194
0131-0721, English (without plug)
0131-0728, English (euro plug)
0131-0701, English 110V0130-01560130-0008not available
0131-0704, Italian0130-01800130-00610130-0197
0131-0705, Spanish0130-01790130-01350130-0198
0131-0707, German0130-01780130-00820130-0196
0131-0709, Dutch0130-01820130-00690130-0199
0131-0714, German (Perfusor)0130-01780130-00820130-0196