Application: 

Widely used in pharmaceutical company, milk product plant, clinical operation room, fermentation industry et al, where microbial contamination need to be strictly monitored and controlled. Also it is applicable in institutes that need study the air microbial condition.

Principle: 

This microbial air sampler works based on Andersen collision principle. Air is aspirated (at a fixed speed for variable times) through small holes in the instrument's head. The resulting laminar air flow is directed onto the surface of an agar plate. At the end of the sampling cycle, the plate is removed and incubated and the visible colonies are then counted for an assessment of the level of contamination.

How to use:

1: Soak medical absorbent cotton in 75% ethanol, and use it to swab air sampler surface, Petri dish pedestal and sampling head et al. 

2: Start the sampler and let it work not less than 5 minutes, making above mentioned disinfector residue evaporate.

3: According to cleanliness requirements to set sampling parameters, then put Petri dish (with medium) inside, and cover the multi-hole sampling head. 

4: Put the air sampler on flat surface 0.8-1.5m above the ground, and then start it begin sampling.

Features:

Automatic air flow compensation:

With built in real time air flow monitor sensor, automatically compensate air flow, avoid air flow divergence caused by medium volume in Petri dish et al. ( HKM-II B)

Constant sampling speed: 

Sampling opening wind speed almost same with clean room wind speed, which more accurately reflect microbial concentration of the clean room, and optimizes impact speed, making false positive result get controlled and guarantees microbial sampling efficiency.

User friendly interface:

Simple keypad making menu navigation easy, with all sampling information clearly displayed on LCD. The LCD can also monitor sampling amount (0.01-6.0 m³). And user can easily set sampling place code, sampling rate, language, time etc.

High efficiency: 

Not need to buy and use special test paper or filter membrane.

Sampling direction adjustable:

Sampling head adjustable from horizontal to vertical, can meet multi-angle sampling requirements. Also it is light enough to hold while sampling, or can be mounted on a tripod (tripod is optional by order). 

Multi-hole sampling head:

Up to 589 holes in sampling head, effectively reduce same strain microbe accommodate possibility, which lowers microbial count error. From Feller calibration, the more the holes in number, the more Petri dish microbial closely reflect actual air microbial concentration.

Data traceability:

Every sampling run generates a unique record, which is stored in the unit (holds up to 2000 records). The data is easily accessed and read on the LCD. For HKM-II A and HKM-II B sampler, also built in software which allows data to be downloaded to computer for reporting, printing and analysis.

Long time working:

Can work up to 15 hours continuously using built in high volume rechargeable polymeric lithium battery, no memory effect, safe and durable.

95% sampling efficiency: 

Validation work according to BS EN ISO 14698-1:2003 Annex B and Annex C, as carried out by an independent laboratory, has shown the air sampler have a physical efficiency of 95% for particles 0.8 to 19.0 micron in size.

Service and technical support

The Huankai Air Sampler comes with a twelve-month manufacturer's warranty. Huankai provides service, calibration and full technical support. Contact your local representative for details.

Technical Specifications

Collection Efficiency: Physical efficiency was determined using Bacillus subtilis spores and a membrane filter reference method (BS EN ISO 14698-1:2003 Annex B).

 

Model	HKM-II	HKM-II A	HKM-II B
Air flow	100 liter/min
Holes number	589
Air sample volume	10-6000 liter
Air flow sensor	No		Automatically compensate
Data transfer	No	Using HKM Sampler software
Applicable Petri dish	Φ90mm
Error range	±2.5%		±2%
Weight	2.6Kg
Dimension	110*135*330mm
Cover material	Silvery, bright blue aluminum alloy
Screen	LCD, Chinese and English language
Battery	7.4V rechargeable polymeric lithium battery (can use up to 15 hours)
Charger	110-240V, 50-60HZ (Universal voltage lithium battery charger)

Ordering Details:

The Huankai Air Sampler comes in a Huankai hand carrying case, with a sampling head, calibration certificate, manual, warranty and battery charger.