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Introduction
The MB1 and MB2 MicroBio air samplers are the most economical samplers in the world for
monitoring airborne micro-organisms or bioaerosols.
They have been fully validated by the UK Department of Trade and Industry Validation of Analytical
Methods (VAM) programme to meet the standards required for a reference sampler.
These samplers collect airborne micro-organisms by drawing a stream of air at a constant flow rate
of 100 litres per minute through a series of small holes in a metal head. The air stream then impinges
onto a sterile culture medium in a 55mm contact plate or 90mm Petri dish. After exposure to the air
stream for a fixed period, the contact plate is removed and incubated. The numbers of colonies
which develop are counted, enabling a calculation to be made of the concentration of micro-
organisms in the air (CFU/m3 - colony forming units per cubic metre).
Technical Specification
MicroBio MB1
Flow Rate:
100 l/min
Sample Volume:
25 to 1,500 litres in 14 preset steps
Sampling Volume
Up to 30,000 litres before recharge*
Capacity:
Sample Delay range
-
d50 Particle size
1.7µm (220 x 1mm hole head)
Mean particle velocity
9.62m/s (220 x 1mm hole head)
Other Features:
Auto switch off
4-digit 7-seg LED display
Sample cancel feature
Padded carry bag supplied
Weight (excluding
650g
charger and carry bag):
Dimensions:
196 x 100 x 110mm (inc. head)
196 x 100 x 40mm (case only)
Power:
4 x AA Cells Alkaline or NiMh
6V at 350mA (maximum)
Noise Level:
< 75dB @ 1m
Environmental Operating
-10 to 40°C up to 90% RH
Range:
Sampling Plate :
55mm contact plate or 90mm Petri dish
Sampling Head:
316 grade stainless steel 220 x 1mm diameter
holes
* Based upon random volume samples at varying intervals until low battery warning given. These tests were undertaken on
units fitted with new and fully charged Ansmann Max-e NiMh cells. Actual battery life may vary due to volume taken per
sample, interval between samples, age of cells, and other environmental effects, such as humidity and temperature. Results
obtained from other brands of cells may vary.
June 2012
MicroBio Operating Manual [P0001W006]
MicroBio MB2
100 l/min
25 to 10,000 litres in 25 litre steps
Up to 60,000 litres before recharge*
10 seconds to 3 hours
1.7µm (220 x 1mm hole head)
1.35µm (400 x 0.7 mm hole head)
9.62m/s (220 x 1mm hole head)
10.7m/s (400 x 0.7 mm hole head)
User programmable preset volumes
Delay start sampling
16 character x 2 line backlit LCD display
Tripod mounting bracket
Padded carry bag supplied
Audible indication of operation/status
Sample cancel with volume taken display
700g
196 x 100 x 110mm (inc. head)
196 x 100 x 40mm (case only)
4 x AA Cells Alkaline or NiMh
6V at 250mA (maximum)
< 75dB @ 1m
-10 to 40°C up to 90% RH
55mm contact plate or 90mm Petri dish
316 grade stainless steel 220 x 1mm diameter
holes or anodised aluminium 400 x 0.7mm diameter
holes
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