Millipore M Air T Troubleshooting guide
ENGLISH
M Air T
Millipore Air Tester
Operation and Maintenance Instructions
1
CONTENTS
Page
INTRODUCTION 3
APPLICATIONS 3
COMPONENTS 4
SETTING PARAMETERS 6
INSTALLING A CASSETTE AND TESTING 9
MAINTAINING THE SYSTEM 12
REPLACING BATTERIES 12
CALIBRATING THE SYSTEM 13
SYSTEM SPECIFICATIONS 14
TROUBLESHOOTING 15
ORDERING INFORMATION 16
WARRANTY 17
Millipore Offices Worldwide Rear Cover
3
INTRODUCTION
Congratulations on choosing the
M Air T
, one of the most innovative concepts for airborne microbial
monitoring.
The Tester consists of easy to handle equipment designed to test airborne contamination from Clean Room
Class 100,000 (SI: M6.5) down to Clean Room Class 100 (SI: M3.5).
This is the first truly portable Tester providing recoveries that are comparable with the SlitToAgar Method
upon which the United States Pharmacopoeia's Guidelines for clean rooms are based (Eighth Supplement,
USPNF, p. 4429).
It uses a unique agar cassette design* ensuring consistent nutrition capability of the agar surface.
The cassette consists of a dark body to enhance contrast, and an integrated grid to partition the large surface
into smaller areas for easier enumeration of colonies.
The sieve of the Tester contains close to 1,000 microperforations. This minimizes colony overlapping.
During incubation, a dynamic process rehydrates the impacted agar surface, providing faster results and
higher recoveries.
The M Air T is ideal for performing environmental surveys in a variety of applications
.
*Patent pending.
APPLICATIONS
Pharmaceuticals
•
Determine microbiological quality of laminar flow hoods.
•
Trend analysis of aseptic filling areas.
•
Assess decontamination procedures.
Food and Beverages
•
Evaluate airborne contamination, critical in HACCP.
Hospitals
•
Detect airborne pathogenic microorganisms in the pharmacy, surgical suites, or other critical patient care
areas.
Electronic Industry
•
Differentiate between particulate and microbial contamination in clean rooms.
4
COMPONENTS
Each M Air T Kit includes:
1
M Air T Apparatus
6
Battery Charger
2
Spare Microperforated Sieve with Cover
7
Tripod
3
Carrying Case
8
Box of Sanitization Wipes
4
Operation and Maintenance Instructions Manual
9
Allen Key
5
Tripod fixation Screw
10
Free space
5
COMPONENTS
Glossary
1
Microperforated Sieve
9
Batteries
2
M Air T Cassette
10
Electronic Circuits
3
Agar Medium
11
Tripod fixation Hole
4
Aspiration Turbine
12
Air Outlet
5
Motor
13
Aerodynamic Sleeve
6
LCD Display
14
Bayonet Lock
7
Handle
15
Air Inlet
8
Charger plug for Batteries
6
SETTING PARAMETERS
Switching the Tester ON:
1. Push the ON / OFF button.
Previously selected air sample volume retained in memory appears on the display to make successive
sampling easier.
2. Press the START / DELAY button quickly twice.
The display flashes, Tester starts and counts down the volume of air that remains to be processed.
At the end of the process the display indicates EOC (End Of Cycle).
Adjusting the volume to be processed:
1. Push the LITRES button.
The previously selected volume appears on the display.
2. To access other preset volumes:
Press the Litres button once.
Preset volumes are
:
25 L, 50 L, 100 L, 250 L, 500 L, 750 L, 1000 L.
(See Cubic Feet Conversion Chart.)
3. To change the volume setting:
Select the preset volume that is just below the volume you want to process.
Then hold the Litres button down until the Tester display indicates the desired sampling volume.
7
SETTING PARAMETERS
Preset sampling volumes available are:
Start sampling by pressing the START / DELAY button twice.
Conversion Chart: Litres vs. Cubic Feet
Litres Cubic Feet Litres Cubic Feet Litres Cubic Feet Litres Cubic Feet
25
0.88
120
4.24
240
8.47
550
19.4
30
1.06
130
4.59
250
8.83
600
21.2
35
1.24
140
4.94
275
9.71
650
22.9
40
1.41
150
5.30
300
10.6
700
24.7
45
1.59
160
5.65
325
11.5
750
26.5
50
1.77
170
6.00
350
12.3
800
28.2
60
2.12
180
6.35
375
13.2
850
30.0
70
2.47
190
6.71
400
14.1
900
31.8
80
2.82
200
7.06
425
15.0
950
33.5
90
3.18
210
7.41
450
15.9
1000
35.3
100
3.53
220
7.77
475
16.8
110
3.88
230
8.12
500
17.7
8
SETTING PARAMETERS
Adjusting the Timer:
1.
To modify the time setting, hold down the START / DELAY button. The display shows previously selected
value and starts to count down the time. (LCD display flashes.)
Time can be changed in increments of 5 minutes up to one hour.
2.
To validate and start the count down, press down on the START / DELAY button again.
3.
To stop, press the ON / OFF button.
9
INSTALLING A CASSETTE AND TESTING
Define the location of the Tester according to GMP requirements.
The Tester works in the upright position or, by using a tripod, in the horizontal or inclined position.
For testing above bench level, the Tester may be supported by a commercial tripod.
Ensure prefilled cassettes are at room temperature before starting the test.
Running the Tester:
1.
Unlock and remove the microperforated sieve from the Tester (Fig.1).
Fig. 1
2.
Remove the cover from the sieve. Autoclave the sieve for 30 minutes at 121 °C and sanitize the external
surfaces of the Tester with alcohol.
3.
Position the wings of the cassette into the recessed area of the Tester head (Fig. 2).
Schematic of a Cassette
1 Lid 3 Bottom Cover
2 Inert Film 4 Wings
Fig. 2
10
INSTALLING A CASSETTE AND TESTING
4.
Retain the cassette in position by holding on to its wings. Remove the lid and place it on the bench,
internal face down. Peel off the inert film from the agar surface (Fig. 3).
Fig. 3
5.
Lock the microperforated sieve into position.
6.
Press the ON / OFF button. Set the sampling parameters, then quickly press the START / DELAY button
twice (Fig. 4).
Fig. 4
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