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2301 Remote Airborne Particle Counter

0.3 – 25.0 µm @ 0.1 CFM

The 2301 particle counter provides a range of particle size measurement from 0.3 or 0.5 to 25.0 μm at a flow rate of 0.1 CFM (2.83 LPM). These sensors allow for efficient particle counting with specifications that exceed the ISO 21501-4 and JIS B9921 calibration standards.

These sensors have 4 fixed particle size channels and are equipped with an integral critical orifice and flow sensor to provide a stable flow rate from an external vacuum source. Integration into a building automation or facility monitoring system is easy via isolated RS-485 Modbus communication.

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FEATURES AND BENEFITS

 

2301: Measures 0.3 um to 25.0 um
2501: Measures 0.5 um to 25.0 um
0.1 CFM (2.83 LPM) flow rate
Long-life laser diode technology
Measures up to 4 channels of simultaneous data
Particle concentrations up to 15,000,000 Particles/ft3 @ 10% coincidence loss
Internal critical orifice
Connect using Modbus RTU/ASCII over isolated RS-485
Complies with ISO 21501-4 and JIS B9921 standards
Easy to clean and wipe down with minimal particle traps
Versatile mounting options
User-configurable alarm light
LED Indicators
Seamless integration into a facility monitoring system
Lightweight stainless steel enclosure
2-year warranty. Extended warranties are available.
Model 2301
Size Range 0.3 to 25.0 μm
Size Channels Factory calibrated at 0.3, 0.5, 1.0, 5.0 um
Number of Channels 4
Counting Efficiency 50% @ 0.3 um; 100% for particles > 0.45 um per JIS
Flow Rate 0.1 CFM (2.83 LPM)
Concentration Limits 15,000,000 Particles/ft3 @ 10% coincidence loss
Light Source  Long-life laser diode
Zero Count < 1 count / 60 minutes (< 1 particles /6/ft3)
Calibration NIST traceable
Vacuum Requirements External vacuum > 15″ (38.1cm) of Hg
Airflow Internally monitored
Alarm User configurable alarm light
Communication Modes MODBUS™ RTU or ASCII outputs (over isolated RS-485)
Standards ISO 21501-4 and JIS B9921
Instrument Calibration Recommended minimum once per year
External Surface Stainless steel
Dimensions (L x W x H) 3.59” x 1.83” x 5.01” (9.1 cm x 4.7 cm x 12.7 cm) including probes and connectors
Weight 1.65 lb. (0.75 kg)
Accessories Wiring Connector, operating manual on USB flash drive
Optional Accessories Power Supply, Remote Mounting Bracket, Stainless Steel Barbed Isoprobe (0.1 CFM/2.83 LPM), Purge Filter Assembly, and Sample & Vacuum Tubing
Sample Time 1 second to 18 hours
Power 9 – 24 VDC (< 2.5 watts)
Operating Conditions 41° to 104°F (5° to 40°C) / 20% to 95% non-condensing
Storage Conditions 32° to 122°F (0° to 50°C) / Up to 98% non-condensing
Warranty 2-year limited warranty. Extended warranties are available.

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