Airy Technology

R301 & R501 Remote Particle Counters

R301 and R501 Remote Airborne Particle Counters

0.1 CFM (2.83 LPM)

 The R301 and R501 particle counters provide 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.

R301: Measures 0.3 μm to 25.0 μm
R501: Measures 0.5 μm to 25.0 μm
0.1 CFM (2.83 LPM) flow rate
Long life laser diode technology
Measures up to 4 channels of simultaneous data
Accurate in high particle concentration environments
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
Alarm light
LED Indicators
Seamless integration into a facility monitoring system
Lightweight stainless steel enclosure
1 year limited warranty. Extended warranties available.
ModelR301R501
Size Range0.3 μm to 25.0 μm0.5 μm to 25.0 μm
Size ChannelsFactory calibrated at 0.3, 0.5, 1.0, and 5.0 μmFactory calibrated at 0.5, 1.0, 2.5, and 5.0 μm
Number of Channels4 channels4 channels
Counting Efficiency50% @ 0.3μm; 100% for particles > 0.45 μm per JIS50% @ 0.5μm; 100% for particles > 0.75 μm per JIS
Flow Rate0.1 CFM (2.83 LPM)
Concentration Limits10,000,000 particles/ft3 @ 10% coincidence (per ISO 21501-4),
20,000,000 particles/ft3 @ 10% coincidence (as tested and validated1)
Light SourceLong life laser diode
Zero Count<1 count / 60 minutes (<1 particles / 6 ft3). No fault count subtraction.
CalibrationNIST traceable
Vacuum RequirementsExternal vacuum > 15” (38.1cm) of Hg
AirflowInternally monitored
AlarmUser configurable alarm light
Communication ModesMODBUS™ RTU or ASCII outputs (over isolated RS-485)
StandardsISO 21501-4 and JIS B9921
Instrument CalibrationRecommended minimum once per year
External SurfaceStainless steel
Dimensions (L x W x H)1.83” x 3.59” x 5.01” (4.6 x 9.1 x 12.7 cm) including probes and connectors
Weight1.65 lb. (0.75 kg)
AccessoriesWiring Connector, operating manual on USB flash drive
Optional AccessoriesPower Supply, Remote Mounting Bracket, Stainless Steel Barbed Isoprobe (0.1 CFM/2.83 LPM), Filter Assembly, and Sample & Vacuum Tubing
Sample Time1 second to 18 hours
Power9 - 24 VDC (< 2.5 watts)
Operating Conditions41° to 104°F (5° to 40°C) / 20% to 95% non-condensing
Storage Conditions32° to 122°F (0° to 50°C) / Up to 98% non-condensing
Warranty1 year limited warranty. Extended warranties available.

Accessories

Filter
0.1 CFM (2.83 LPM)
Part Number: AS-99002A

Temperature & Humidity Probe
±1° (0.5°C), 15-90% ±2%RH
Part Number: EE-80122A

Remote Mounting Bracket
Part Number: AS-99001

Wireless 802.11 b/g Output
with Antenna
Part Number: EE-80093

Isoprobe Threaded (Ni plated Al)
0.1 CFM (2,83 LPM)
Part Number: PS-12041

Isoprobe Threaded (Stainless)
0.1 CFM (2,83 LPM)
Part Number: PS-12070

Isoprobe Barbed (Stainless)
0.1 CFM (2,83 LPM)
Part Number: PS-12022

Inlet Fitting Barbed
1/8″ (Stainless)
Part Number: PS-12005

Tubing (per foot)
3/8″ OD (1/4″ ID)
Part Number: AS-99019

Tubing (per foot)
1/4″ OD (1/8″ ID)
Part Number: AS-99018

Tubing (per foot)
3/8″ OD (1/4″ ID) Bev-A-Line XX
Part Number: AS-99037

Tubing (per foot)
1/4″ OD (1/8″ ID) Bev-A-Line XX
Part Number: AS-99036

USB Cable
6ft (1.8m)
Part Number: AS-99022

Power Supply
15V -2A 100-240 VAC
Part Number: EE-80127

Power Supply Connector
USA, Japan, Philippines, Taiwan
Part Number: EE-80128

Power Supply Connector
Europe & Korea
Part Number: EE-80129

Power Supply Connector
UK, Malaysia & Singapore
Part Number: EE-80130

Power Supply Connector
China & Australia
Part Number: EE-80131

User Manual
(Printed)
Part Number: MN-24018P

Instrument Management Software
& User Manual (USB Key)
Part Number: MN-24018