R306 and R506 Remote Airborne Particle Counters

0.1 CFM (2.83 LPM)

  • Industry's highest concentration of 15,000,000 particles/ft³ @ 10% coincidence loss
  • Ideal for use in Cleanrooms, Industrial Health & Safety, and Air Quality applications
  • Unparalleled and most comprehensive internal self-diagnostics of any remote particle counter
  • Remote diagnostics allows for remote service investigation through the Internet
  • Supports MODBUS TCP, RTU & ASCII communication over Ethernet, or (optional) RS-485/RS-232
  • Internet of Things (JSON) communication allows for network or cloud based data options

The Airy Technology® R306 and R506 Remote Particle Counters are the most feature-advanced remote particle counters available. Integration is easy into a building automation and cleanroom management system via Ethernet, or (optional) Wireless 802.11 b/g, RS485 or RS232. Integrated web server displays instrument screen through any browser.

The R-306 and R-506 remote particle counters display and report 6 user-selectable particle size channels, as well as (optional) temperature and humidity, flow and sensor status, date of last calibration, serial number, laser on-time and date of manufacture for easy maintenance and warranty management. Storing up to 45,000 time-stamped particle count and environmental data records provides data redundancy on every instrument. Airy Technology® counters can be monitored remotely via web browser or controlled and monitored using Instrument Management
Software (IMS).

All Airy Technology® counters meet ISO 21501-4 and JIS B9921. The R306 and R506 ensure compliance with an on-board pulse height analyzer.

R306: Measures 0.3 μm to 25 μm
R506: Measures 0.5 μm to 25 μm
0.1 CFM (2.83 LPM) flow rate
Long life laser diode technology
Measures up to 6 channels of simultaneous data
Large easy-to-use icon driven color touch screen display
(Optional) temperature and relative humidity probe
Stores up to 45,000 sample records for on-board data redundancy
Easy configuration and transferable from instrument to instrument
Connect using Ethernet, USB or (optional) Wireless 802.11 b/g, RS485, or RS232
Static or dynamic IP address (DHCP)
Internal audible alarm with comprehensive alarm management
User-selectable channel sizes
Complies with ISO 21501-4 and JIS B9921 standards
Easy to clean and wipe down with minimal particle traps
Versatile mounting options
Seamless integration into a facility monitoring system
Light weight stainless steel enclosure
1 year limited warranty. Extended warranties available.
Size Range0.3 to 25 μm0.5 to 25 μm
Size ChannelsFactory calibrated at 0.3, 0.5, 1.0, 2.5, 5.0, 10.0 μmFactory calibrated at 0.5, 0.7, 1.0, 2.5, 5.0, 10.0 μm
Counting Efficiency50% @ 0.3 μm; 100% for particles >0.45 μm per JIS50% @ 0.5 μm; 100% for particles >0.75 μm per JIS
Flow rates0.1 CFM (2.83 LPM)
Concentration Limit15,000,000 Particles/ft3 @ 10% coincidence loss
Light SourceLong life laser diode
Zero Count<1 count / 5 minutes (<2 particles / ft3) (per ISO 21501-4 & JIS)
Count ModesCumulative/differential count/m3 & count/ft3
Count Alarms1 to 9,999,999 counts
CalibrationNIST traceable
Display4.3" (10.9 cm) WQVGA (480x272) color touch screen
Vacuum RequirementsExternal vacuum >15” (38.1 cm) of Hg
Number of Channels6
Custom Size ChannelsCalibration for custom size channels available
AirflowInternally monitored
Audible AlarmAdjustable built-in alarm
Communication ModesEthernet and USB
Optional Communication ModesWireless 802.11 b/g, RS485 or RS232
Environmental Sensor(Optional) temperature and relative humidity probe 32º to 122ºF (0º to 50ºC) ±1ºF (0.5ºC), 15-90% ±2% relative humidity
AlarmAlarms on counts for all particle sizes, sensor failure, environmental sensors and flow
StandardsISO 21501-4 and JIS B9921
CalibrationRecommended minimum once per year
External SurfaceStainless steel
Dimensions (L x W x H)5.2” x 2.25” x 9.96” (13.3 cm x 5.7 cm x 25.3 cm) includes barb fittings
Weight2.6 lb (1.18 kg)
AccessoriesQuick start guide, operating manual on USB flash drive, isokinetic probe, power supply & cable
Optional AccessoriesPrinted manual, temperature relative humidity sensor, isokinetic probes, filter, data cable, mounting bracket and sample tubing
Buffer Memory45,000 sample records (rotating buffer) including particle count data and environmental data
Sample Time1 second to 99 hours
Power110 to 240 VAC 50/60 Hz universal in-line power supply
Operating Conditions41º to 104ºF (5º to 40ºC) / 20% to 95% non-condensing
Storage Conditions32º to 122ºF (0º to 50ºC) / Up to 98% non-condensing
Warranty1 year limited warranty. Extended warranties available.


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
Part Number: MN-24018P

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