Airy Technology®
Remote Particle Counters
R9501 IoT Remote Particle Counter
0.5 – 25.0 µm @ 0.1 CFM
The R9501 IoT particle counter provides a range of particle size measurement from 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 6 user-selectable particle size channels (up to 30 channels optional) 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.
| Measures 0.5 to 25.0 μm |
| 0.1 CFM (2.83 LPM) flow rate |
| Long life laser diode technology |
| Measures up to 6 channels of simultaneous data (30 channels optional) |
| Particle concentrations up to 15,000,000 Particles/ft3 @ 10% coincidence loss |
| Internal critical orifice |
| User-selectable channel sizes |
| Stores up to 65,000 sample records for on-board data redundancy |
| (Optional) temperature and relative humidity probe available |
| Connect via Modbus RTU/ASCII over isolated RS-485, TCP/IP, PoE, or WiFi |
| Complies with ISO 21501-4 and JIS B9921 standards |
| Easy to clean and wipe down with minimal particle traps |
| Versatile mounting options |
| Alarm light |
| LED Indicators |
| Seamless integration into a facility monitoring system |
| Lightweight stainless steel enclosure |
| 1 year limited warranty. Extended warranties available. |
| Size Range | 0.5 to 25 μm |
| Size Channels | Factory calibrated at 0.5, 1.0, 2.5, 5.0, 10.0 μm Variable binning - user defined channel sizes |
| Number of Channels | 6 channels (up to 30 optional) |
| Counting Efficiency | 50% @ 0.5 μm; 100% for particles > 0.45 μm per JIS |
| Flow rates | 0.1 CFM (2.83 LPM) |
| Concentration Limit | 15,000,000 Particles/ft3 @ 10% coincidence loss |
| Light Source | Long life laser diode |
| Zero Count | <1 count / 60 minutes (<1 particles / 6 ft³). No fault count subtraction. |
| Count Alarms | 1 to 9,999,999 counts |
| Calibration | NIST traceable |
| Vacuum Source | Internal vacuum pump with HEPA filter exhaust |
| Airflow | Internally monitored |
| Configuration/Download | USB mini-B |
| Alarm | Alarm LED ring |
| Communication Modes | Connect via Modbus RTU/ASCII over isolated RS-485, TCP/IP, PoE, or WiFi |
| Environmental Sensor | (Optional) Temperature and Relative Humidity Probe |
| 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 5.66” (9.1 cm x 4.6 cm x 14.3 cm) including probes and connectors |
| Weight | 1.94 lb. (0.88 kg) |
| Accessories | Operating manual on USB flash drive, isokinetic probe, power supply and cable |
| Optional Accessories | Printed manual barb fittings, mounting bracket and sample tubing, IMS-RT monitoring system |
| Buffer Memory | 65,000 sample records (rotating buffer) including particle count data and environmental data |
| Sample Time | 1 second to 99 hours |
| Power | 9 - 24VDC (< 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 | 1 year limited warranty. Extended warranties available. |
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Part Number: AS-99015 | Part Number: EE-80092 | Rechargeable & Removable Part Number: EE-80003A | (For EE-80003A) Part Number: AS-99005A |
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Part Number: EE-80014A | 0.1 CFM (2.83 LPM) Part Number: AS-99002 | 0.1 CFM (2.83 LPM) Part Number: AS-99002A | Connector (5 POS) Part Number: EE-79015A |
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0.1 CFM (2.83 LPM) Part Number: PS-12041 | 0.1 CFM (2.03 LPM) Part Number: PS-12070 | 0.1 CFM (2.83 LPM) Part Number: PS-12022 | 1/8 (Stainless) Part Number: PS-12005 |
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Includes 2 Rolls of Paper Part Number: AS-99011 | Single Roll Part Number: AS-99012 | Cleanroom Paper (10 Pack) Part Number: AS-99013 | 15V ~2A 100-240 VAC Part Number: EE-80127 |
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USA, Japan, Philippines, Taiwan Part Number: EE-80128 | Europe & Korea Part Number: EE-80129 | UK, Malaysia & Singapore Part Number. EE-80130 | China & Australia Part Number: EE-80131 |
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3/8" OD (1/4" ID) Part Number: AS-99019 | 3/8" OD (1/4" ID) Bev-A-Line XX Part Number: AS-99037 | Part Number: MN-24001 | 6ft (1.8m) Part Number: AS-99022 |
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User Manual (Printed) Part Number: MN-24001P | Validation Manual Part Number: MN-24002 |