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Model 227A/227B Handheld Airborne Particle Counters
This product is now obsolete. Please click here for the current replacement models.
Particle counting in the palm of your hand
The Model 227 Portable Airborne Particle Counter offers the features and sensitivity
of larger instruments and easy handheld operation. Weighing only two pounds, the
Model 227 features a sensitivity of 0.3 micron (227B) or a sensitivity of 0.5 micron
(227A), is fully self-contained, and uses reliable laser diode technology. It connects
to a remote printer or computer, and can be part of a facility-monitoring system.
The Model 227 counts two sizes of particles simultaneously. Sample times
can be set for up to 24 hours. Count data are stored in memory for easy transfer to a
printer or computer. To make the most of its portability, the Model 227 features several
counting modes for quick analysis of cleanroom conditions. The concentration mode
gives a continuously updated approximation of the number of particles per cubic foot
or per liter. The approximation is based on a user-selectable sample period of one to
ten seconds. In the auto mode, it automatically takes a specified number of samples
and stops, allowing unattended operation. The average mode calculates the average,
minimum, and maximum count after a specified number of samples.
In beep mode, the Model 227 sounds a beep each time it counts a specified
number of particles. This is useful for locating leaks in filters.
To protect your cleanroom, the Model 227 contains an exhaust filter. The
pump and sensor are turned off when the battery charge drops below a safe operating
level, maintaining power to preserve data stored in memory.
The Met One Model 227:
a handful of information.
Features
 AC or battery operation
0.3 micron at 0.1 cfm (227B)
0.5 micron at 0.1 cfm (227A)
Counts 2 sizes simultaneously
Stores data from 200 locations
Labels data with location
Internal rechargeable battery
Weighs only 2.1 lbs (0.97 kg)
Spreadsheet-compatible data files with Particle Vision PortAll software
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Applications
LAF and biohazard benches
Cleanroom laundries
HVAC systems
Computer rooms
Food and beverage packaging
Hospitals: Pharmacy and surgery
Indoor Air Quality (IAQ)
Aerospace Assembly
Medical Device Assembly
Automotive: Paint spray booths
Filter performance
Data Sheet
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Met One is now known as Beckman Coulter.
Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.
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