The Microdust Pro Real-Time Dust Monitor Kit from Casella USA is a portable, real time monitor for assessing the concentration of suspended particulate matter, and is probably the most versatile instrument available with the ability to measure from 1µgm-3 to 2500 mgm-3. It is the only handheld real-time dust monitor on the market capable of graphically presenting variations in dust concentration on a real time scrolling graph – no longer is it necessary to wait to analyze results on a PC.
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Sensing Technique: |
Near forward light scattering - 880nm
infrared |
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Ranges: |
All instruments provide 0 to 2500 mgm-3
over four ranges as standard: |
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Resolution: |
0.001 mgm-3 (1µgm-3) |
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Operating Temp Range: |
32 to 122 °F (0 to 50°C) non condensing |
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Storage Temp Range: |
-4 to 131 °F (-20 to +55°C) |
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Calibration: |
Gravimetric method using 'Arizona Fine'
calibration dust (ISO12103-1, A2) |
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Zero Stability: |
±0.002 mgm-3/ °C |
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Span Stability: |
<0.7% FSD / °C |
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POWER |
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Battery: |
4 x AA / MN1500 cells - Alkaline or
rechargeable NiCad |
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Operating Duration: |
Alkaline (2700mAh) typically
>20 hours
NiCad cells (950mAh) typically >10 hours |
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Battery Charging: |
Internal NiCad fast charger circuitry
(with time-out protection) |
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Charge Rate: |
Fast charge rate 450mA, Standby charge
rate 55mA |
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Power Adapter: |
Universal input voltage range 100-240VAC,
47-63Hz |
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Output: |
12VDC @ 800 mA |
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GENERAL |
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Analogue Output: |
0 to 2.5 VDC FSD, 500Ω output
impedance (3ms update rate) |
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Keypad: |
7 key tactile membrane |
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Weight: |
Instrument only = 34.6 oz (0.97 Kg)
(complete kit plus case = 10lb - 4.5Kg) |
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Dimensions: |
Probe = 1.4 Ø x 11.6 in
(35mm Ø x 290mm) total length
Instrument H x W x D = 9.8" x 3.8" x 2.0" (245 x 95 x 50mm) |
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Maintenance: |
Factory cleaning required annually
depending on measurement conditions |
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DISPLAY |
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Display: |
128 x 64 pixel LCD graphics panel with
backlight |
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Displayed Values: |
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Instantaneous reading:
Other readings: |
Rolling average
concentration over a user selectable period (1 to 60 sec)
AVE & MAX concentration since power on or reset |
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Scrolling Graphs: |
100 / 200 seconds, 15 minutes or 60
minutes (Y Axis auto-ranging or fixed) |
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Battery voltage: |
Battery Voltage with 'OK' / 'Low'
status message. |
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CALIBRATION |
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Factory Calibration: |
Traceable isokinetic technique (wind
tunnel) and ISO 12103-1 |
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User Calibration: |
Four user defined calibration settings
available stored for later use. |
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Routine Calibration: |
Firmware calibration for
zero & span setting in the field by user.
Optical calibration filter supplied (restores factory calibration) |
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DATA
LOGGING |
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Internal Memory: |
64K EEPROM providing 15,700 data points |
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Logging Interval: |
Adjustable from 2 to 600 seconds. |
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Recorded Values: |
Average, spot, max & min concentration
over logging period |
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Serial Interface: |
RS232 up to 38.4K baud |
