laerdal LSU Manual

Laerdal Suction Unit
Cat. No. 78 00 00 - Reusable
Cat. No. 78 00 30 - Serres
Directions for Use
LSU

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3
1 Cautions and Warnings 4
2 Intended Use 4
3 User Interface
–3.1 Operating Knob 5
–3.2 Indicators 5
–3.3 TEST-Button 6
–3.4 Power Sources 6
–3.5 Automatic Power-save Function 6
4 LSU Reusable Canister System
–4.1 Overview 7
–4.2 Parts 7
–4.3 Use 8
–4.4 Quick Reference 11
–4.5 After Use 11
–4.6 Decontamination of Laerdal Reusable
Canister 11
5 Serres Suction Bag System
–5.1 Overview 12
–5.2 Parts 12
–5.3 Use 13
–5.4 Quick Reference 15
–5.5 After Use 15
6 Cleaning and Maintenance
–6.1 General 16
–6.2 Clean the Cabinet and parts 16
–6.3 Disinfection of reusable parts 16
–6.4 Charge the Battery 16
–6.5 External Battery Charger 17
–6.6 Check the Battery Quality 17
–6.7 Replace the Battery 17
–6.8 Fastening the brackets 18
–6.9 Release arm for Canister holder 18
7 Device Test 18
–7.1 Setup 18
–7.2 Run the Test 19
–7.3 Evaluation of Device Test Results 20
8 Servicing 21
9 Troubleshooting 21
10 Accessories and Parts 22
11 Specifications 24
–11.1 Classification 24
–11.2 General Tolerance 24
–11.3 Physical Characteristics 24
–
11.4 Operation 24
–11.5 Power Requirements 24
–11.6 Enviromental Conditions 25
–11.7 Material Chart 25
–
11.8 Symbols 26
–11.9 EMC Specifications 27
12 Limited Warranty 28
13 Addresses 28

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These Directions for Use covers two
configurations of the Laerdal Suction Unit (LSU):
Reusable, Serres Suction Bag System. Unless
otherwise specified the information in this
Directions for Use applies to both configurations.
Read these Directions for Use carefully, and
become thoroughly familiar with the operation
and maintenance of the LSU before using it.
1 Cautions and Warnings
The LSU should only be used by persons trained
in the use of medical suction equipment.
The LSU is not suitable for use in the presence of
flammable liquids or gases; there can be a danger
of explosion or fire.
Do not use the LSU under environmental
conditions that are outside the ranges specified
under section 11.6.This can endanger safety and
adversely affect operation of the device.
Do not block the Exhaust Outlet during use.
This will lead to reduced flow and can also cause
damage to the LSU.
Always use the Reusable version with the filter
and the Float Ball in place.
Overflow of suctioned material can damage the
device. If overflow of liquid from the Canister
into the pump is suspected, the LSU must be
returned for service (see section 8).
Disconnect the LSU from external power prior
to cleaning. Use a minimum of liquid to prevent
any electrical shock hazard.
Do not immerse the LSU or allow it to stand
in water or other liquids.This might damage the
device, and cause electrical hazard.
Do not pump any cleaning solution or other
liquids through the vacuum pump, i.e. through the
Vacuum Connector.This can damage the LSU.
Use only accessories supplied by Laerdal Medical
or one of our authorised distributors to ensure
that the LSU operates satisfactorily.
Battery
• Only use batteries approved by Laerdal
Medical. Other batteries will have problems
related to the battery status indicator of the
LSU, the battery operation time, and safety.
• To maintain satisfactory operation of the
battery, it is recommended to place the LSU
on continuous charge when not in use.
• The LSU must be placed on charge for
a minimum of 24 hours to reach full
battery capacity.The fast charging gives
approximately 80% battery capacity after
3 hours (for a new battery). Please note
that repetitive 3 hour charging is not
recommended.
• If it is not possible to place the LSU on
continuous charge when not in use, make
sure the battery is charged for a minimum of
24 hours at least once a month.
• Do not store the battery when it is
discharged; always fully charge the battery
before storage.
• We recommend charging a spare battery
every 6 months when stored in room
temperature at 25°C (77°F ).
2 Intended Use
The LSU is a portable, electrically powered,
medical suction equipment intended for field and
transport use. It is intended for intermittent
operation to remove secretions, blood or vomit
from a patient´s airway to allow ventilation.
Higher vacuum levels are generally selected for
oropharyngeal suctioning, and lower vacuum
levels are usually selected for tracheal suctioning
and the suctioning of children and infants.

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3 User Interface (all configurations)
3.1 Operating Knob
The Operating Knob is a combined ON/OFF
switch and vacuum selector, located at the
bottom of the User Interface.
The LSU is switched ON by turning the
Operating Knob to the required setting.
Each setting indicates the maximum achievable
vacuum level for the selected position (80, 120,
200, 350, 500+ mmHg).
The free air flow value changes along with the
increasing vacuum settings (see section 11.4 for
details).The LSU is switched OFF by resetting the
Operating Knob to “0”.
Even if the Operating Knob is in “0” position,
voltage is present on some of the internal
circuitry, when the LSU is connected to mains.To
fully remove power, pull out the Power Cord.
3.2 Indicators
3.2.1 Power ON Indicator
This green LED has 3 modes:
• It is lit continuously while the LSU
is switched ON.
• It flashes rapidly (approx. twice per second)
during the Device Test.
• It flashes slowly (approx. once per second)
while the Automatic Power-save Function is
activated, if the Device Test is interrupted or
when the battery is discharged.
3.2.2. External Power Indicator
This green LED is continuously lit
while external AC or DC power is
connected.
3.2.3 Failure Mode Indicator
The red LED is lit when a possible
malfunction of the LSU has been
detected. If lit, turn the LSU OFF, and then
ON again to check if the indication disappears.
Provided that the indication does not occur
again the LSU can be operated. If the Indicator
continues to lit after three OFF/ON cycles and
after replacing the battery with a fully charged
battery, discontinue use and return the LSU for
service. (See section 8).
3.2.4 Vacuum Indicator
This green LED bargraph displays the
actual vacuum level during operation
of the LSU.
Each fully lit segment represents 50
mmHg. If a segment has a weak light,
this represents 25 mmHg (e.g 125
mmHg means 2 fully lit and 1 weakly
lit segments).
mmHg 80 120 200 350 500
kPa 11 16 27 47 67
mBar 107 160 267 467 667
Pressure conversion chart
3.2.5 Battery Status Indicator
This green LED bargraph has 3 functions:
• Indicates remaining battery capacity
during operation from internal
battery
• Indicates approx. achieved battery
capacity during charging.
• Indicates which test is currently in progress
during device test
During operation from internal battery:
Indicates approx. remaining battery capacity.
During operation from internal battery and
during charging the displayed values must only be
used as indications.
Several parameters can influence them e.g.
device settings, state of battery, temperature etc.
Note: Immediately after turning the LSU ON and
immediately after switching from external power
to internal battery operation, all 4 LED’s will
flash for 5 seconds before the remaining battery
capacity is displayed.

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Typical remaining Battery capacity
Accuracy is dependent upon the lifetime and
condition of the battery, as well as, the condition
of the unit. Outside variables such as temperature
may also affect accuracy.
Battery Capacity Output
> 50 % 4 LEDs lit.
30 - 50% 3 LEDs lit.
20 - 30% 2 LEDs lit.
< 20% 1 LED lit.
Battery Low; (min. 1 minute of operation left
based on 500+ mmHg/free flow). 1 LED flashes.
During charging: indicates approx. achieved
battery capacity.
Capacity Output*
< 75% The LED’s will be lit sequentially
75 - 80% 3rd LED’s lit and 4th flashing
> 80% 4 LED’s lit.
*Note: If no battery is installed, the battery status
indicator will be fully lit for approx. 5 sec. until it
is turned off.
During the Device Test
Indicates which step of the test is currently in
progress or which corresponding test result is
being displayed:
LED 1 (lower LED) lit = STEP 1,
LED 2 lit = STEP 2 etc.
3.3 TEST-Button
This button allows you to run a
4-step user initiated Device Test
program to identify whether the
LSU is operating satisfactorily or if it needs
service (see section 7).
3.4 Power Sources
The LSU is delivered with an AC Power Cord for
connection to AC mains and a DC Power Cord
for connection to DC mains.
The device can be operated from the internal
battery, and can be operated or charged from
one of the following external Power Sources:
• AC mains when used with the AC Power
Cord: 100-240 VAC (50 / 60 Hz).
• DC mains when used with the DC Power
Cord: 12-28 VDC.
A Wall Bracket to hold the LSU during operation
and (optional) charging is available separately
(see section 10).
AC Connector Socket
DC Connector Socket
External power connection will cause
the External Power Indicator to be lit.
Always check that it is lit when
connecting external power or
inserting the LSU into the Wall Bracket.
3.5 Automatic Power-save Function
The LSU has an Automatic Power-
save Function that switches the pump
motor off.
While in this mode, the Power ON Indicator will
flash slowly (approx. once per second).
This function will be activated when the
Operating Knob is set to 200, 350 or 500+
mmHg and the actual vacuum level has been
continuously higher than 120 mmHg for more
than 2 minutes.
To exit the Power-save Mode and revert to
normal operation, set the Operating Knob to
any other position and then go back to required
setting.

4 LSU Reusable Canister System
4.1 Overview
Aerosol Filter
Vacuum inlet
User Interface
Canister Holder
PATIENT Inlet
Patient Suction Tubing
Suction Catheter
Adapter
Holder for Water
Bottle/Patient
Suction Tubing.
Water Bottle
Canister Lid
with Float Ball
Battery Door
Release Arm
Canister
4.2 Parts
Gasket
Vacuum seal
PATIENT Inlet
Canister
Aerosol Filter
Angled Connector
Patient Suction Tubing
Canister Lid w/Float Ball
Suction Catheter Adapter
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The LSU Reusable Canister System consists of:
• A 1000 ml transparent plastic Canister.
• A Canister Lid w/Float Ball
• An Aerosol Filter with tubing
The Canister Lid contains a Float Ball that shuts
off the vacuum if the canister is full or the LSU
tips over. To restore the vacuum, remove the
Angled
Connector from the VACUUM Inlet.The Float
Ball will be released and the Angled Connector
can be reattached,
Note: The LSU Reusable Canister System must
not be used without the Aerosol Filter or the
Float Ball.
Decontamination of reusable parts must be
performed in accordance with section 4.6.

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The Aerosol Filter protects the LSU by
preventing aerosols from entering the Pump
Unit. It is not intended for microbiological or
for particle filtration. The Aerosol Filter is not
designed for decontamination.
It is recommended that the Aerosol Filter be
replaced after each use or at least once every
shift. If the LSU is used on patients in areas where
cross contamination is not an issue, the Aerosol
Filter should be replaced at least once a month.
It is recommended always to have extra Aerosol
Filters with the LSU in case one has to be
discarded. If the Aerosol Filter becomes wet, it
should be replaced immediately or as soon as
possible after use.
4.3 Use
Note: Read all the Cautions and Warnings listed
in section 1 thoroughly before you use the LSU.
The parts are color coded to help re-assembly
after cleaning.
4.3.1 Check list
• Check that no parts are missing and that all
parts are clean.
• If you decide to operate the LSU from
external power, connect to either external AC
or DC power as described in section 3.4.
If you decide to operate the LSU from internal
battery, check that the battery is installed.
• Check that the Patient SuctionTubing is
securely connected to the PATIENT Inlet on
the Canister Lid; and the Aerosol filter is
securely fastened in the LSU and the lid.
4.3.2 Using the LSU
Note: The LSU must be operated and
transported in the upright position to prevent
overflow of suctioned material.
1 Unwind the Patient SuctionTubing
2 Set the Operating Knob to the required
vacuum level.The LSU will automatically be
switched ON and start to operate.
The green Power ON Indicator is lit
continuously while the LSU is switched ON.
3 When suction is complete, set the Operating
Knob to “0”
4.3.3 Emptying the Canister
Note: To prevent damage and keep the LSU in
good working order; empty the canister when
3/4 full. Check the filter after each use.
If the filter is broken so liquid penetrates the
membrane, the pump will be contaminated, and
the LSU must be returned for service (see
section 8).
When liquid reaches the top of the Canister, the
LSU will stop suctioning.To continue suctioning,
empty canister and replace the filter.
Overflow of suctioned material can damage the
device.

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To remove the Canister, proceed as follows:
1 Disconnect the Filter Tubing from the blue
Vacuum Inlet (see section 4.2 regarding
handling instructions for the Aerosol Filter).
2 To release the Canister Holder, press down the
Release Arm while sliding the Holder towards
you. Remove the Canister from the Holder.
3 Release the Patient SuctionTubing (if
applicable).
4 Safely dispose of the contents of the Canister
according to local protocols.
5 Clean the LSU according to section 6.2 and
its reusable parts according to section 4.6.
4.3.4 Assembly of the Reusable Canister System
1 Place the yellow Gasket in the Lid, make sure
that the gasket is placed flat in the Lid and
not twisted.
2 If the Float Ball has been removed, hold the
lid upside down and snap the ball into place
as shown.
Note: Never use the LSU without the Float Ball.
3 Secure the Lid to the Canister by turning it
clockwise until it is securely fastened.

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4 Connect the Suction Catheter Adapter to
the Patient Tube.
5 Connect the Angled Connector to the Patient
Tube.
6 Mount the yellow Vacuum Seal in the centre
hole of the Lid and push it into place.
7 Connect the Aerosol Filter (blue ring) to the
blue Vacuum Inlet on the LSU. (Color code:
Blue on Blue)
8 Insert the Canister in the canister holder and
slide it into the LSU.
9 Connect the yellow Angled Connector to the
yellowVacuum Seal
10 Connect the Angled Connector on the Patient
tubing to the PATIENT Inlet on the canister Lid.
11 Perform the Device Test according to section 7.
12 Wind the PatientTubing on the Patient
Tubing Holder.
13 Place the LSU on charge (see section 6.4)

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Note: Connect tubing according to color code:
Blue on Blue & Yellow onYellow.
4.4 Reusable Canister System
Quick reference
The assembly of the tubing is
illustrated on the right side of the
LSU.
1 Connect the blue Aerosol filter
to the blueVacuum Inlet.
2 Connect the yellow angled
connector to the yellow
Vacuum Seal.
3 Connect the PatientTubing to
the Patient inlet.
4.5 After Use
• When suction is complete, set Operating
Knob to ”0” and inspect all parts for damage
or excessive wear. Replace parts if necessary.
• Clean the LSU and its reusable parts
according to section 6.2
• Perform the Device Test according to section
7.
• Place the LSU on charge (see section 6.4).
4.6 Decontamination of Laerdal Reusable
Canister
4.6.1 Parts to be Decontaminated
After Each Use:
1 Canister Lid
2 Float Ball
3 Gasket.
4 Vacuum Seal
5 Angled Connectors
6 Canister
7 Patient Suction Tubing
8 Suction Catheter Adapter.
1.
4.
3. 8. 5.
7.
6.
2.
4.6.2 Preparation
• Remove and empty the Canister according
to section 4.3.
• Disassemble the Canister into separate parts
as indicated in the picture above.
• The Float Ball on the reusable canister can
be snapped out of the lid.
4.6.3 Rinsing
• Rinse all parts under cold running water.
• Immerse in warm water (30-40°C).
4.6.4 Cleaning
• Immerse all parts in hot water (60-70°C)
containing a mild detergent (see section 6.3).
• Thoroughly clean all surfaces, use a brush
where possible.
• Rinse in warm water and allow to dry.
• Inspect all parts to be visibly clean and dry.
Note: Thorough rinsing and cleaning are very
important steps prior to disinfection.

5. Serres Suction Bag system
5.1 Overview
Vacuum Inlet
User Interface
Canister
Canister Holder
Release Arm
PATIENT Inlet
Suction Tube
Serres Vacuum Connector
Serres Suction
Bag with filter
Holder for
Suction Tubing
Battery Door
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5.2 Parts
Disposable Parts
• Suction bag with filter
• Serres Suction Tube
Suction Bag with FilterSerres Suction Tube
Reusable Parts
Parts to be cleaned or replaced regulary:
• Canister
• Serres Vacuum Connector
Serres Vacuum
Connector
Canister
The Serres Suction Bag system contains a
hydrophilic filter that shuts off the vacuum if the
canister is full or the LSU tips over.
To restore the vacuum, replace the Suction bag:
The disposable parts must be replaced after each
use.

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The reusable canister must be cleaned if needed
according to manufacturer’s instructions for use.
Clean the Serres Vacuum Connector by wiping
with a damp cloth or a sponge. Do not autoclave
or attempt to disassemble.
5.3 Use
Note: Read all the cautions and warnings listed in
section 1 thoroughly before you use the LSU.
5.3.1 Check list
• Check that no parts are missing and that all
parts are clean.
• If you decide to operate the LSU from
external power, connect to either external
AC or DC power as described in section 3.4.
If you decide to operate the LSU from
internal battery, check that the battery is
installed and charged.
• Check that the Serres Vacuum Connector is
properly connected to the LSU and to the
canister
Check that the lid of the canister is properly sealed:
1 Block patient inlet and turn on the LSU.
2 Vacuum will build up when all parts are
assembled correctly.
5.3.2 Using the LSU
Note: The LSU should be operated and
transported in the upright position to prevent
overflow of suctioned material.
1 Unwrap the Serres Suction Tube.
2 Connect the Serres Suction Tube to the
Patient inlet on the canister lid.
3 Attach appropriate suction catheter if
necessary. Not supplied by Laerdal Medical.
4 Set the Operating Knob to the required
vacuum level and the LSU will automatically
be switched on and start to operate.
The green power ON Indicator is lit
continuously while the LSU is switched on.
5 When suctioning is complete, set the
Operating Knob to “0”.
5.3.3 Empty the canister
Note: It is recommended to replace the Suction
Bag when it is ¾ full.
When liquid reaches approximately 1000 ml,
the LSU will not suction any more liquid. If
overflow of liquid from the bag into the pump is
suspected, the LSU must be returned to service
(see section 8).
Overflow of suctioned material can damage the
LSU.
Disconnect Serres Suction tube. Safely dispose
of the Serres suction tube according to local
protocols.

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1 Plug Patient Inlet with plug provided on the
lid. Disconnect the Serres Vacuum Connector
from the canister.
2 Press the release arm while sliding the holder
towards you to loosen or completely remove
canister.
3 Remove suction bag from canister
4 Safely dispose of the Serres Suction bag
according to local protocols.
5 Clean the LSU if needed according to section
6.2.
6 Clean the Serres canister if needed according
manufacturers instructions for use.
Note: Clean the Serres Vacuum Connector by
wiping with a damp cloth or a sponge.
Do not autoclave or attempt to disassemble.
The Serres Vacuum Connector should be
replaced regularly.
5.3.4 Assembly of the Serres Suction Bag system
1 Place the canister in a canister holder in an
upright position.
2 Partially insert the canister holder into the
LSU.
3 Unfold the Suction Bag and place inside the
canister. Suction bag has to be installed into
equal size canister
4 Insert the Serres Vacuum Connector into the
LSU Vacuum Inlet.

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5 Fully insert canister holder into the LSU.
6 Insert the opposite side of the Serres Vacuum
Connector into the canister.
7 Turn the operating knob to 500+ mmHg.
8 Close the Patient inlet with your finger and
simultaneously push the middle of the lid
down.The lid is properly installed when
vacuum has reached 500 mmHg.
9 Release the patient inlet and make sure that
the bag is fully inflated.
10 Turn off the LSU.
11 Fasten the Suction Tubing on the Suction
Tubing Holder
12 Place the LSU on charge (see section 6.4)
5.4 Serres Suction Bag System
Quick Reference
Correct assembly of the tubing
is illustrated on the right side of
the LSU.
5.5 After Use
1 Inspect all parts of the LSU for damage and
excessive wear.
Replace parts if necessary.
The Serres Vacuum Connector should be
replaced regularly.
2 Place an unopened Serres Suction Tube on
the side of the LSU.
3 Perform Device Test according to section 7.
4 Place the LSU on charge see section 6.4.

6.3 Disinfection of reusable parts
To disinfect the parts, the following methods are recommended:
Method Temperature / Concentration Contact Time Post-treatment
Glutaraldehyde Room temperature / Conc.: 2% 60 minutes Rinse all parts warm water.
Allow to dry.
Sodium Hypochlorite
(not cleared for use in
the US)
Room temperature / Conc.: 0.5% 20 minutes Rinse all parts warm water.
Allow to dry.
Virkon Room temperature / Conc.: 1% 10 minutes Rinse all parts warm water.
Allow to dry.
Steam autoclaving Autoclave at max. 121° C 60 minutes Allow parts to cool.
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6. Maintenance
6.1 General
• Make sure the maintenance instructions
under “After Use” are followed.
• If the device is not in frequent use (i.e. less
than once a month), the Device Test (see
section 7) should be performed both on a
monthly basis and after each use.
6.2 Clean the Cabinet and parts
Warning: Disconnect the LSU from external
power prior to cleaning.
Use a minimum of liquid to prevent any electrical
shock hazard. Do not immerse the LSU or allow
it to stand in water or other liquids.This can
damage the device, and cause electrical shock
resulting in injury to persons.
• Use a cloth or sponge that is dampened with
a mild detergent (hand dishwashing liquid or
similar) to clean the external surfaces of the
LSU. Use a detergent that is compatible with
the materials listed under section 11.7, and
follow the detergent manufacturer´s
instructions.
• Use a cloth or sponge dampened with water
and wipe the surfaces again.
• Dry the surfaces using a clean cloth or a
paper towel.
6.4 Charge the Battery
The internal rechargeable battery can be charged
directly from external AC or DC power as
described in section 3.4. No external charger is
needed.To charge the battery, proceed as follows:
1 Make sure the Operating Knob is set to “0”.
Connect either external AC or DC power to
the LSU and charging will start automatically.
2 During charging the Battery Status Indicator
will indicate approx. achieved battery capacity
(see section 3.2.5 for details).
3 The LSU should be placed on charge for a
minimum of 24 hours to reach full battery
capacity.The fast charging gives approx. 80%
capacity after 3 hours (for a new battery).
Repetitive charging for only 3 hours is not
recommended.

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Note:
• To maintain satisfactory operation of the
battery, it is recommended to place the LSU
on continuous charge immediately after use
and when not in use.
• It is recommended to always fully charge the
battery. Repetitive charging to a lower
capacity level will reduce battery life.
• If it is not possible to place the LSU on
continuous charge when not in use, make
sure the battery is charged for a minimum of
24 hours at least once a month.
• Do not store the battery when it is
discharged. Always fully charge the battery
before storage.
• Do not store the LSU with a discharged
battery.
• The recommended ambient temperature for
charging is from 15°C to 25°C.
• The battery will not be charged when the
LSU is in operation.
• If no battery is installed, the battery status
indicator will be fully lit for approx. 5 sec.
until it is turned off.
• Replace the battery when it does not pass
the Battery Quality Check (see section 6.6
for details) or after 3 years, whichever comes
first.
• A completely discharged battery cannot be
charged by the LSU and must be replaced.
• We recommend charging a spare battery
every 6 months when stored in room
temperature at 25°C (77°F ).
6.5 External Battery Charger
The LSU battery can also be charged
in an optional External Battery Charger.
See section 10.
6.6 Check the Battery Quality
If poor battery quality is suspected, charge the
battery for a minimum of 24 hours and then
perform the following test without connection to
external power:
LED 4
LED 3
LED 2
LED 1
• Run the Device Test and
then let the LSU operate
continuously at 500+
mmHg setting and free
air flow for 20 minutes.
• If the LSU stops before
completing the 20
minutes, the battery should be discarded.
6.7 Replace the Battery
Note: Use only batteries recommended by
Laerdal Medical.
1 Open the Battery Door.
2 To remove the battery, push and move it
slightly to the left and then release.
3 Withdraw the battery from the LSU.*
4 To insert a battery, push it fully in and then to
the right to lock it.
5 Close the Battery Door.
6 After inserting the battery, place the LSU
on charge unless a fully charged battery is
inserted.
*When you discard the battery, dispose of safely
in accordance with local protocols for sealed lead
acid or Nickel Metal Hydride (NiMH) batteries.

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6.8 Fastening brackets
The fastening bracket is used to hold the LSU in
the optional wall bracket. Inspect the fastening
brackets for wear and tear regularly.
Replace if worn. See section 10.
Fastening
brackets
6.9 Release arm for Canister holder
An extra release arm for the canister holder can
be attached. See section 10.
7 Device test
The Device test is a user initiated test program
for all models which can identify whether the
LSU operates satisfactorily or if the LSU needs
service.
The program runs 4 different tests:
1 It tests for occlusions in the Suction System
(including canister and tubing).
2 It tests the vacuum build-up efficacy of the
Pump System (How much vacuum is built up
within 3 seconds).
3 It tests the maximum achievable vacuum
level of the LSU (reaches this level within 10
seconds).
4 It tests if there are air leakages in the Pump
System (including canister and tubing).
7.1 Setup
Before the test can be performed make sure that:
• The Patient SuctionTubing is unwound and
not blocked or bent.
• The Suction Catheter Adapter is removed
from its holder (if applicable).
• The canister lid,T-bar, angled connector and
tubing are securely fastened.

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7.2 Run the Test
Note: If you need to interrupt the test and revert
to normal operation, turn the Operating Knob
to another position and then select the required
setting.
1 Press and hold the TEST-Button while setting
the Operating Knob to 500+ mmHg.
Note: Do not release the TEST-Button until min.
2 seconds after the Operating Knob has been set
to 500+ mmHg.The test will start immediately
2 As soon as LED 2 from the bottom of the
Battery Status Indicator comes on (takes
approx. one second), fully block the Patient
Suction Tubing.*
3 Keep the tubing blocked while LED 2 , 3 and
4 lights up.
4 Release the tubing when LED 1 comes on
again.
5 Evaluate the test results (See section 7.3)
6 After evaluating the test results turn the
Operating Knob to “0” to exit the Device Test.
Note: To indicate that the LSU is in test mode,
the Power ON Indicator will flash rapidly (approx.
twice per second) until you exit the test program.
* If the tubing is not occluded within 2 minutes,
the test will be interrupted and the Power ON
Indicator will start to flash slowly (approx. once
per second).To restart the test, set the Operating
Knop to “0” and start over again.

7.3 Evaluation of Device Test Results
After the test is completed, the Vacuum Indicator will automatically display the first result (blockage).To
display the other results press theTEST-Button once for each test. If you continue pressing the button after
the 4th test result has been displayed, the earlier results will be repeated (Test 1,2,3,4,1,etc.).To exit the
test program, set the Operating Knob to another position.
Test No. The program
has tested for
Battery
indicator Test result indication Action if test failed
Test 1 Blockage in the
Suction System
(including
canister and
tubing)
LED #1 lit up Test Passed <100 mmHg
FAIL
100 mmHg
PASS
Check possible blockages (e.g.
twisted tubing, blocked filter,
blocked filter in the liner) and
run the Device.Test again.
If the High Efiiciency Filtration
Kit is installed the pass limit is
150mmHg
Test 2 The vacuum
build-up
efficacy of the
Pump System
(How much
vacuum is built
up within 3
seconds)
LED #2 lit up Test Passed >300 mmHg
PASS
300 mmHg
FAIL
Check Connectors,Tubes and
Canister Lid for leakage* or
damage.
Check exhaust outlet for
occlusion and run the Device
Test again
Test 3 The maximum
achievable
vacuum level
of the LSU
(reaches this
level within 10
seconds)
LED #3 lit up Test Passed >500 mmHg
PASS
500 mmHg
FAIL
Check Connectors,Tubes and
Canister Lid for leakage* or
damage.
Check exhaust outlet for
occlusion and run the Device
Test again
Test 4 Air leakages
in the Pump
System
(including
canister and
tubing)
LED #4 lit up Test Passed >450 mmHg
PASS
450 mmHg
FAIL
Check Connectors,Tubes and
Canister Lid for leakage* or
damage and run the Device
Test again
* If it is not obvious where the system is leaking; go step by step through the connections. Start by disconnecting
theVacuumTube at the Canister and run the DeviceTest (blocking the tube). Reconnect the tube and
disconnecting the patient tube, run device test (block the PATIENT inlet on the Canister). Continue with other
connections until the leakage is identified.
Note: If the LSU does not pass one or more of the steps in this test after suggested actions are taken, the
device might need to be returned for service (see the Troubleshooting guide).
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