VWR SAS Super IAQ User manual

VWR® Microbiological Air Sampler
SAS Super IAQ
INSTRUCTION MANUAL
European catalogue numbers:
710-0868 710-0919
Version: 1
Issued: February 2020

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Legal address of manufacturer
Europe
VWR International Srl
Via S. Giusto 85
20153 Milano
Italy
Tel.: + 39 02-3320311
http://it.vwr.com
Country of origin: Italy

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Table of contents
Legal address of manufacturer ................................................................................................ 2
Warning ..................................................................................................................................... 4
Safety information .................................................................................................................... 4
Kit and unit description ............................................................................................................ 5
Technical features ..................................................................................................................... 6
Intended use .............................................................................................................................. 6
Brief operating instructions ..................................................................................................... 7
Installation ................................................................................................................................. 7
Functions ................................................................................................................................... 9
Colony Forming Unit correction factor .................................................................................. 15
Accessories ............................................................................................................................. 18
Troubleshooting ...................................................................................................................... 19
Technical service .................................................................................................................... 20
Warranty .................................................................................................................................. 20
Compliance with local laws and regulations ......................................................................... 20
Equipment disposal ................................................................................................................ 21

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Warning
This document is the property of VWR International S.r.l. - Milan - Italy
It may not be duplicated or distributed without the owner’s authorisation.
Patent pending
Manufactured by VWR International S.r.l. - Milan, Italy
Safety information
Use the device only for the indicated purposes.
The device must be correctly used according to this instruction manual before starting any operation.
Immediately replace any electrical cable when damaged.
Always disconnect the charger before:
 Repairing or maintenance; these operations must be carried out by qualified staff
 Cleaning the unit
Use original spare parts and accessories for any replacement.
Do not use this device in the presence of explosive gas.
Please follow the guidelines below and read this manual in its entirety to ensure safe operation of the unit.
Be aware that the voltage and frequency of the electrical system are compatible with the electrical
requirements of the battery charger.
Never use a non OEM charger to charge the air sampler.
Use of improper charger may damage the unit.
.
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Kit and unit description
1. Soft carrying case
2. SAS IAQ control unit
3. Aluminium head
4. Battery charger
5. Remote control
6. “Clear” button
7. “Enter” button
8. Arrow “Up”
9. “Start” button
10. Arrow “Down”
11. Standing feet
12. Printer connection (not used)
13. Main switch
14. Serial number
15. CE mark
16. Charger connection
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Technical features
Model SAS IAQ Contact SAS IAQ Petri
Cat. No. 710-0868 710-0919
Airflow 100 l/min 100 l/min
Use with 55 mm contact plates 90 mm Petri dishes
Portable Yes Yes
Battery Rechargeable Rechargeable
Battery life 70 000 l 70 000 l
Intended use
Principle
The Surface Air System (SAS) encompasses several models which use the same principle. Air is aspirated at a fixed
speed for variable time through a head which has been machined with a series of specially designed small holes.
The resulting laminar airflow is directed onto the agar surface of a “RODAC plate” (or Petri dish) containing
medium for microbiological analysis.
When the selected sampling cycle is completed, the plate is removed and incubated. The organisms are then visible
to the naked eye and can be counted for the assessment of contamination levels.
The basic idea
The key features of the Surface Air System (SAS) are:
1. To use a simple and inexpensive “contact plate” (“SURFAIR PLATE”, “RODAC”) for surface, hand or air
control. These plates are very well known and easily available. They can be purchased ready poured with
different media.
2. To sample a known volume of air for a variable time to provide a range of sampling volumes.
3. To aspirate air in a laminar flow pattern with sufficient velocity to impact organisms onto an agar surface.
4. To accumulate data on the level of hygiene in each environment so that fluctuations can be monitored.
5. To take advantage of advanced electronics for more reliable results in different operating conditions.
6. To have the flexibility to choose between 55 mm contact plates or 90 mm standard Petri dishes.
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Brief operating instructions
Brief operating instruction for SAS Super IAQ
1. Press main switch.
2. Press ‘START’ button to sample the same air volume as the last sampling cycle.
3. To change the air volume, use the arrow buttons and select ‘USER MODE’ from the menu.
4. Refer to the instruction manual to change settings.
5. Press ‘ENTER’ to confirm selection.
6. Press arrows for menu selection to modify other pre-set parameters.
7. Press ‘ENTER’ to reach the sub menu of the chosen parameter.
8. Refer to the instruction manual to change settings.
9. Press ‘ON/OFF’ switch at the end of sampling operations.
10. Press ‘CLEAR’ each time you need to end an action. The unit will then return to the initial configuration.
Installation
Practical use of contact plates
1. Remove the aspirating head.
2. Insert an identified, closed and prepared plate and remove the plate lid.
3. Replace the aspirating head.
4. Select required air volume and start the unit. The airflow is directed onto the agar surface of the plate.
5. At the end of the cycle, remove the aspirating head.
6. Close and remove the plate.
7. Incubate.
8. Count the colonies, record the results on the microbiological air sampling report and read the results.
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List of menus and utility sub menus
START FOR XXX This message indicates the air sampler is ready to sample the volume shown
(XXX) after pressing the ‘Start’ button
USER MODE Choose from 8 programmable sampling volumes
PROGRAM MODE Modify the 8 programmable sampling volumes
DELAY MODE Set a delayed start
UTILITY MODE This leads to the following sub menu:
SET TIME
To adjust the date and time
SET AUTOSWITCH
To disconnect the automatic switch-off when the “Infrared Remote” is used
DISPLAY RECORD
To show the recorded sampling data
CLEAR RECORD
To clear the recorded sampling data
LANGUAGE
To display text in different languages
IDENTIFY
To identify the operator’s name
SAMPLING SITE
To identify the sampling point
Preliminary inspection
The instrument is subject to specific quality tests before shipment and is carefully packed to avoid possible damage
during transit. However, a visible check should be carried out as soon as possible to determine any damage. This
must be reported immediately. The following procedures should be followed to check that the unit is working properly.
The instrument battery pack must be charged for at least 4 hours before running the test.
After the ‘ON/OFF’ button is pressed an automatic visual presentation will be displayed.
Holder adjustment
Contact plate and Petri dish holders can be adjusted (using a screw driver) in case the available plate is slightly
different in diameter from the standard 55 mm contact plate or 90 mm Petri dish.
Petri head adapter (optional)
An adapter is available in aluminium or stainless steel which allows the use of standard 90 mm Petri dishes with
SAS for contact plates.
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90 mm Petri dish filling
We recommend you fill the standard 90 mm disposable Petri dish with no more than 18 - 20 ml of agar to avoid the
medium touching the inside surface of the aspirating head.
Tripod installation (optional)
The SAS SUPER IAQ can be fixed to a table, floor tripod or wall support. The screw thread connection is located
under the unit, between the two front feet.
Functions
Software
Press the ‘ON/OFF’ switch (black button) to switch the unit on.
The ‘ON/OFF’ switch (black button) must be pushed twice to switch on the unit if the automatic switch-off timer was
used previously.
Press ‘CLEAR’ at any time to return to the initial ‘START FOR’ main screen.
The air sampler is provided with eight programmable air volumes (‘User Mode’) selectable by the operator.
Volume selection is made by pressing the “▲” or “▼” arrows when the programme is in the relevant sub menu.
Suggested air volumes:
- Contaminated areas (communities, processing rooms, etc) 10 - 200 litres of air
- Normal areas (laboratory benches, houses, etc) 200 - 500 litres of air
- Sterile or high-risk areas (cleanrooms, operating theatres, etc) 500 - 1000 litres of air
Starting with the same air volume as the previous sample
Switch on the unit by pushing the main switch. You will then see the following display with the last aspirated volume
of air:
Push the ‘START’ button to start a sampling cycle with the displayed volume of air.
‘USER MODE’
Up to eight additional volumes can be programmed into the unit. User-selectable volumes can be selected from the
‘USER MODE’, while the selectable volumes can be modified using the PROGRAM MODE’ function described in the
next paragraph.
Switch on the instrument and wait until the main screen is displayed:
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Press the “Up” or “Down” arrows to reach the:
Press the ‘ENTER’ button, now you can scroll the eight user-defined sampling volumes.
Once the desired sampling volume has been reached press the ‘ENTER’ button to confirm.
Press the ‘START’ button to begin the sampling cycle:
There are a total of eight available ‘“USER MODE’ programmes.
The maximum volume of air for each sampling cycle is 2000 litres.
‘PROGRAM VOLUME’ (modification of the value of a stored volume)
Using this procedure, it is possible to memorise up to eight different volumes (from 1 to 2000 litres of air). Switch on
the instrument and wait until the main screen is displayed.
Press the “Up” or “Down” arrows to reach the:
Press the ‘ENTER’ button, now you can scroll the eight user-selectable sampling volumes.
Select a volume by pressing the “UP” or “DOWN” arrows and then pressing ‘ENTER’ (value starts flashing):
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