Airy Technology®
Large Particle Counters

Particle Counter

Model B7501-30 Large Particle Counter

0.5 – 75 µm @ 0.1 CFM with long-life internal pump & battery

The Airy Technology® B7501-30 Remote Particle Counter measures 0.5 to 75.0 µm with a flow rate of 0.1 CFM (2.83 LPM). Easy to configure, this instrument displays up to 6 user-selectable size channels as well as temperature and relative humidity. View data and generate ISO 14644-1, EU GMPAnnex 1 or FS 209E reports on screen or via printer, USB key, real time through its versatile output options or export to Particles Plus® Instrument Management Software. Airy Technology® counters can be controlled and monitored remotely via web browser. The instruments’ mass concentration mode approximates density in µg/m3 and allows for density and refractive index corrections to ensure accuracy.

The B7501-30 can be used as stand-alone battery operated instruments or it can be easily integrated into a building automation and cleanroom management system via Ethernet, USB, or (optional) Wireless 802.11 b/g, RS485 or RS232.

All Airy Technology® counters meet ISO 21501-4 and JIS B9921. The B7501-30 ensures compliance with an on-board pulse height analyzer.

Measures 0.5 μm to 75 μm
0.1 CFM (2.83 LPM) flow rate
Long-life laser diode technology
Measures up to 6 channels of simultaneous data
Approximates mass concentration in μg/m³
Large easy-to-use icon driven color touch screen display
Temperature and relative humidity probe included
Stores up to 45,000 sample records, 1,000 sample locations and 50 recipes
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)
Displays and externally prints reports for ISO 14644-1, EU GMP Annex 1 and FS 209E
Internal audible alarm
User-definable reports
User-selectable channel sizes
Complies with ISO 21501-4 and JIS B9921 standards
Easy to clean and wipe down with minimal particle traps
Seamless integration into a facility monitoring system
Light weight stainless steel enclosure
2 year limited warranty. Extended warranties available.
Size Range0.5 to 75 µm
Size ChannelsFactory calibrated at 0.5, 1.0, 2.5, 5.0, 10.0, 30.0 μm Variable binning - user defined channel size
Counting Efficiency50%@ 0.5 µm; 100% for particles >0. 75 µm per JIS
Flow rate0.1 CFM (2.83 LPM)
Concentration Limit15,000,000 Particles/ff'@ 10% coincidence loss
Battery Run Time>10 hours continuous operation
Light SourceLong life laser diode
Zero Count<1 count / 60 minutes (<1 particles / 6 ft³). No fault count subtraction.
Count ModesReal-Time Meter and graph, cumulative/differential count/ni' and count/ff', and mass concentration (PM)
Count Alarms1 to 9,999,999 counts
CalibrationNIST traceable
Display4.3" (10.9 cm) WQVGA(480x272) color touch screen
Printer(Optional) External thermal printer available
Vacuum SourceInternal pump with automatic flow control
Filtered ExhaustInternal HEPA filter
Number of Channels6
Custom Size ChannelsCalibration for custom size channels available
Audible AlarmAdjustable built-in alarm
BatteryRemovable Li-ion
Battery Recharge Time4 hours within instrument (<2 hours with external battery charger)
ReportsISO 14644-1, EU GMP Annex 1, FS 209E
Recipes50 user-configurable recipes
Communication ModesEthernet and USB. (Optional) Wireless 802.11 b/g, RS485 or RS232.
Environmental SensorTemp and RH probe 32° to 122°F (0° to 50°C) ±1°F (0.5°C), 15-90% ±2% relative humidity
AlarmAlarms on counts for all particle sizes, sensor failure, environmental sensors and flow
StandardsISO 21501-4 and JIS B9921
Instrument CalibrationRecommended minimum once per year
External SurfaceStainless steel
Dimensions (L x W x H)5.22" x 3.81" x 9.42" (14.0 cmx 9.7 cmx 23.9 cm) includes barb fittings
Weight2.6 lb (1.18 kg)
AccessoriesOperating manual and IMS Software on USB flash drive, isokinetic probe, temperature relative humidity sensor, purge filter, battery, USB cable, power supply and cable
Optional AccessoriesPrinted manual, temperature relative humidity sensor , isokinetic probes, barb fittings, filter, data cable, sample tubing, IMS-RT monitoring system
Buffer Memory45,000 sample records (rotating buffer) including particle count data, environmental data, locations, annotations, and times. Scrollable on screen or printout.
Sample LocationsUp to 1,000 locations 20 characters long
Sample Time1 second to 99 hours
Power110 to 240 VAC 50/60 Hz universal in-line power supply
Operating Conditions41° to 104°F (5° to 40°C) /20% to 95% non-condensing
Storage Condition32° to 122°F (0° to 50°C) / Up to 98% non-condensing
Warranty2 year limited warranty. Extended warranties available.

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