Airy Technology®
Large Particle Counters
Model B7501-30 Large Particle Counter
0.5 – 75 µm @ 0.1 CFM with long-life internal pump & battery
The Airy Technology® B7501-30 Benchtop Airborne Particle Counters measure particles from 0.5 to 75.0 μm at a flow rate of 0.1 CFM (2.83 LPM). These userfriendly instruments display up to six selectable particle size channels, along with temperature and relative humidity measurements.
Designed for cleanroom monitoring, indoor air quality, industrial hygiene, research, and health & safety applications, the B7000 Series offers exceptional versatility. From the cleanest labs to the dirtiest worksites, confidently monitor any environment thanks to the industry’s highest particle concentration limits.
With 10 hours of continuous battery operation and up to 100 hours using our patented intelligent battery management system, these instruments are built for long-lasting performance on a single charge. The Airy Technology® Real-Time Monitoring technology enables dynamic particle investigations, displaying data in particles per second to help users quickly locate contamination sources in controlled environments.
Data can be managed directly on the device or through the free Particles Plus® software. Export raw data in .CSV format or generate reports (ISO 14644-1, EU GMP Annex 1, or FS 209E). Remote diagnostics are also available from anywhere with an internet connection. The B7000 Series can function as a fully portable, battery-operated solution or be easily integrated into building automation and cleanroom management systems with multiple communication options.
| • Stores up to 45,000 sample records, 1,000 sample locations and 50 recipes |
| • Long life laser diode technology for reliable performance |
| • Approximates mass concentration in μg/m³ with density and refractive index corrections |
| • User selectable PM sizes from 0.5 μm to 10 μm including TPM of up to 75 μm |
| • Large, intuitive color touch screen display with an easy-to-use icon-driven interface |
| • Resolve issues quickly from any location with internet-enabled remote diagnostics |
| • Annotation function allows user to save 32 character notations to a live sample record |
| • Over 10 hours continuous sampling on a single charge |
| • Common interface ensures ease of use across all products |
| • Connect using Ethernet, USB or (optional) Wireless 802.11 big, RS 485, or RS232 |
| • Displays user-definable reports for ISO 14644-1, EU GMP Annex 1 and FS 209E |
| • Built-in visual and audible alarms with comprehensive alarm management |
| • Complies with ISO 21501-4 and JIS B9921 standards |
| • Easy to clean, lightweight stainless steel enclosure with minimal particle traps |
| • 2 year Limited Warranty (Extended and Lifetime warranties available) |
| Model | B7501-30 |
| Size Range | 0.5 to 75 μm |
| Size Channels | Factory calibrated at 0.5, 1.0, 2.5, 5.0, 10.0, 30.0 μm variable binning |
| Flow rates | 0.1 CFM (2.83 LPM) |
| Concentration Limits | 15,000,000 particles/ft3 @ 10% coincidence (per ISO 21501-4), |
| 30,000,000 particles/ft3 @ 10% coincidence (as tested and validated1) | |
| Aerosol Concentration Range | 0.01 to 20,000 μg/m³ |
| Battery Run Time | >10 hours continuous operation |
| Light Source | Long life laser diode |
| Counting Efficiency | 50% @ 0.5 μm; 100% for particles >0.75 μm per JIS |
| Zero Count | <1 count / 60 minutes (<1 particles / 6 ft3). No fault count subtraction. |
| Count Modes | Real-Time Meter and graph, cumulative/differential count/m³and count/ft³, and mass concentration (PM) |
| Count Alarms | 1 to 9,999,999 counts |
| Calibration | NIST traceable |
| Display | 4.3″ (10.9 cm) WQVGA (480×272) color touch screen |
| Optional Printer | External thermal printer available |
| Vacuum Source | Internal pump with automatic flow control |
| Filtered Exhaust | Internal HEPA filter |
| Number of Channels | 6 |
| Custom Size Channels | Calibration for custom size channels available |
| Audible Alarm | Adjustable built-in alarm |
| Battery | Removable Li-ion (Recharge time: 4 hours within instrument, <2 hours with external battery charger) |
| Reports | ISO 14644-1, EU GMP Annex 1, FS 209E |
| Recipes | 50 user-configurable recipes |
| Communication Modes | Ethernet, USB, RS485, RS232, and (optional) 802.11b/g wireless |
| Environmental Sensor | Includes temperature 32º to 122ºF (0º to 50ºC) ±1ºF (0.5ºC) and relative humidity probe 15-90% ±2% |
| Alarm | Integrated alarms for particle counts (any size channel), sensor failure, environmental sensors, and flow rate |
| Standards | ISO 21501-4 and JIS B9921 |
| Calibration | Recommended minimum once per year |
| External Surface | Stainless steel |
| Dimensions (L x W x H) | 5.22” x 3.81” x 9.42” (14.0 cm x 9.7 cm x 23.9 cm) includes barb fitings |
| Weight | 2.6 lb (1.18 kg) |
| Accessories | User manual + Instrument Management Software (IMS) on USB flash drive, isokinetic probe, temperature relative humidity sensor, zero-count filter, battery, USB cable, and power supply |
| Optional Accessories | Printed manual, carrying case, spare battery, external battery charger, external printer, barbed fittings, and tubing |
| Buffer Memory | Securely stores up to 45,000 sample records with particle counts, environmental data, locations, and timestamps |
| Sample Locations | Up to 1,000 locations 20 characters long |
| Sample Time | 1 second to 99 hours |
| Power | 110 to 240 VAC 50/60 Hz universal in-line power supply |
| Operating Conditions | 41º to 104ºF (5º to 40ºC) / 20% to 95% non-condensing |
| Storage Conditions | 32º to 122ºF (0º to 50ºC) / Up to 98% non-condensing |
| Warranty | 2 year limited warranty. Extended warranties available. |
