Met One A2100 Laser Particle Counter

Met One A2100 Laser Particle Counter
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The Met One / Met One Instruments A2100 Laser Particle Counter measures airborne particles in six size ranges at the same time, and displays the number of particles in each range as a cumulative or differential count. The counter is a state-of-the-art laser-based microprocessor-controlled instrument. It provides adjustable count alarms, automatic calibration verification, and computer controlled operation through a serial port.

The A2100 counter's laser and optical lenses create a laser beam that is used to detect particles. The airborne particles pass through the laser beam, deflecting bursts of light onto a solid-state photo diode that converts the light to an electrical pulse. The size of the pulse is proportional to particle size. The microprocessor and its associated circuitry sorts and counts these pulses.



Power 200 Watts
Voltage 115, 100 or 230 VAC ±10%
Frequency 50 to 60 Hz
Max. Count Displayed 9,999,999
Environment (Operating) Temperature: 12 to 29°C (55 to 84°F)
Humidity: 20 to 95% relative, non-condensing
Environment (Non-Operating) Temperature: -40 to 60°C (-40 to 140°F)
Humidity: up to 98% relative, non-condensing
# of Size Ranges 6
Particle Size Ranges 0.1, 0.2, 0.3, 0.5, 0.7, 1.0 micron
Min. Threshold Setting 0.1 micron at 50% counting efficiency
Zero Count one count or less in 15 minutes
Sample Flow Rate 1 cfm (25.3L/min)
Coincidence Loss Less than 5% at 40,000 particles/cu. ft.
Light Source HeNe laser tube
Data Storage 400 samples, rotating buffer
Count Display up to 999 while in Automatic mode
Locations up to 999, number appears on printout
Output RS-232C/RS-485 for computer
Sensor Type 4-port HeNe, open cavity
Pump Type air vacuum (linear), 1 cfm