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                        Particle Counter

                        如果您對該產品感興趣的話,可以 產品名稱: Particle Counter
                        產品型號: Met One 227A/227B
                        產品展商: MetOne
                        產品文檔: 無相關文檔


                        Met One 227A/227B HandHeld airborne Particle Counters Features ■ 0.5 micron at 0.1 CFM (227A) ■ 0.3 micron at 0.1 CFM (227B) ■ User-selectable second channel ■ battery operation ■ Weighs only 0.97kg

                        Particle Counter

                        The Met One 227 Handheld Airborne Particle Counter features the sensitivity
                        of larger instruments and easy handheld operation. Weighing only two
                        pounds, the 227 features a 0.3 micron sensitivity (227B) or a 0.5 micron
                        sensitivity (227A), and uses reliable laser diode technology.
                        The Met One 227 counts two sizes of particles; the second size is userselectable.
                        Configure sample times from one second up to 24 hours. To make
                        the most of its portability, the 227 features several counting modes for quick
                        analysis of cleanroom conditions.
                        Concentration mode: Gives a continuously updated approximation
                        of the number of particles per liter or cubic foot.
                        The approximation is based on a user-selectable
                        sample period of one to ten seconds.
                        Auto mode: Automatically takes a specified number of samples
                        and stops, allowing unattended operation.
                        Average mode: Calculates the average, minimum, and maximum
                        count after a specified number of samples.
                        Beep mode: Sounds a beep each time it counts a specified
                        number of particles.
                        To protect cleanrooms, the Met One 227 contains an exhaust filter. The
                        pump and sensor are turned off when the battery charge drops below a safe
                        operating level, maintaining power to preserve data stored in memory.
                        Print results to a remote printer or download data to a computer or
                        facility monitoring system. Use PortAll Version 2 software with the 227
                        to schedule automated data collection of particle counts. Track
                        and identify trends to eliminate particle contamination sources.
                        ■ 0.5 micron at 0.1 CFM (227A)
                        ■ 0.3 micron at 0.1 CFM (227B)
                        ■ User-selectable second channel
                        ■ AC or battery operation
                        ■ Stores data from 200 locations
                        ■ Labels data with location
                        ■ Internal rechargeable battery
                        ■ Weighs only 0.97 kg (2.1 lbs)
                        ■ Compatible with PortAll?
                        Version 2 software
                        ■ Monitor and verify cleanrooms
                        ■ Test filters in place
                        ■ Investigate particle sources
                        ■ Monitor:
                        - Laminar Air Flow (LAF)
                        - Biohazard benches
                        - Cleanroom laundries
                        - HVAC systems
                        - Computer rooms
                        - Food and beverage packaging
                        - Hospital pharmacies, surgery rooms
                        - Indoor Air Quality (IAQ)
                        - Aerospace assembly
                        - Medical device assembly
                        - Automotive paint spray booths
                        Easy to use, reliable and flexible
                        handheld air particle counter
                        Met One 227A/227B
                        HandHeld airborne Particle counters
                        Performance Specifications
                        Size Channels 227A ch1 0.5 μm
                        ch2 user selectable—0.7, 1.0, 3.0, or 5.0 μm
                        227B ch1 0.3 μm
                        ch2 user selectable—0.5, 1.0, 3.0, or 5.0 μm
                        Flow Rate 2.83 LPM (0.1 CFM)
                        Light Source Laser diode with 30,000 hours Mean Time to Failure (MTTF)
                        Coincidence Loss Less than 5% at 70,600 particles/L (2,000,000 particles/ft3)
                        Factory Calibration Mono-dispersed polystyrene spheres (NIST traceable)
                        Display 4-line LCD, 7 digits
                        Outputs RS-232C/RS-485 for computer or printer
                        Location Labels 100, appear on printout
                        Data Storage 200 samples, rotating buffer
                        Sample and Hold Times 1 second to 24 hours
                        Count Alarms 1 to 9,999,999 each channel
                        Concentration Mode 1 second samples, 1 to 10 samples averaged, display updated
                        every second; displays counts/L or counts/ft3
                        Power AC adapter or internal battery pack
                        Battery Rechargeable NiMH
                        Battery Recharge Time 90% in 10 hours; 100% in 12 hours
                        Operating Time 8 hours continuous
                        Size 10.3 w x 17.5 h x 5.9 d cm (4 x 6.9 x 2.3 inches)
                        Weight 0.97 kg (2.1 lbs)
                        Environment Operating 12 to 29°C (55 to 84°F),
                        20 to 95% relative humidity, non-condensing
                        Storage -40 to 70°C (-40 to 160°F),
                        up to 98% relative humidity, non-condensing
                        Accessories Included Isokinetic Probe (direct mount); Purge Filter; Recharger Stand;
                        AC Adapter; Operator Manual
                        When ordering, specify Minimum Sensitivity 0.5 μm (227A) or 0.3 μm (227B)
                        Power (AC) AC adapters for 100 VAC, 115 VAC, or 230 VAC
                        Optional Accessories Relative Humidity/Temperature Sensor
                        High Pressure Diffuser
                        Printer, external
                        Carrying/Shipping Case
                        PortAll Version 2 Software
                        Lit. No. DS-227A/B-US.0707

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