US AIRY Remote Particle Counter - Model P231

1. Remote Particle Counter P231 Product Overview:

Remote Particle CounterP231 is used to test particles at a flow rate of 1.0 CFM (28.3 LPM) with particle sizes of 0.5 and 5.0 µm. Its test data can be easily integrated into real-time monitoring or building management systems via Modbus™ RTU or Modbus™ ASCII. The P231 is currently the smallest remote particle counter on the market and is easy to install. The AiryTechnology P231 complies with ISO 21501-4 and comes with a two-year warranty.

2. Remote Particle Counter P231Product Features:

• Measurement range of 0.5 and 5.0 µm
• Particle flow rate of 1.0 CFM (28.3 LPM)
• Simultaneously measures two channels of data
• Long-life laser diode
• Modbus™ RTU or Modbus™ ASCII output
• Concentration limit of 500,000 per cubic foot
• Complies with ISO 21501-4 and JIS B9921 standards
• Lightweight stainless steel housing
• Easy to clean and wipe
• Two-year warranty

3. Remote Particle Counter P231Product Specifications:

Channel Size	0.5µm and 5.0µm
Counting Efficiency	50% (0.5µm); 100% (particles >0.75µm) (per JIS)
Maximum Concentration	500,000 particles per cubic foot, 5% coincidence loss
Light Source	Long-life laser diode
Zero Count Level	<1 count/5 minutes (per JIS B9921)
Air Flow Rate	1CFM(28.3LPM)
Flow Control	Critical orifice
Vacuum Requirement	External vacuum >15" (952.5px) Hg
Calibration	NIST traceable
Sampling Probe/Tube	Isokinetic sampling probe
Communication Interface	Modbus™ RTU or ASCII output (specify when ordering)
Power Supply	9-30VDC
Dimensions (L x W x H)	1.8" x 3.7" x 1.5" (4.5 cm x 9.3 cm x 3.8 cm), excluding probe
Weight	0.62lb(0.28kg)
Standards	ISO 21501-4 and JIS B9921
Warranty	2-year warranty
Operating Conditions	5-35°C, 20%-95% RH, non-condensing
Storage Conditions	-20~50°C, up to 98% RH, non-condensing
Optional Accessories	Isokinetic sampling probe, self-cleaning filter, data cable, vacuum and sample tubing