CEL-712 Microdust Pro Real-time Dust Monitor
50 Casella Measurement
8 Specifications
8.1 Instrument specification
Sensing technique Forward light scattering using visible red
semiconductor laser light (wavelength 635 nm
<5 mW).
Laser classification The Microdust Pro is a Class 1 Laser Product
complying with 21CFR1040 with deviations pursuant
to Laser Notice 50 and with IEC/EN60825-1:2007.
Measuring ranges 0.001mg/ m³ to 250 g/m³ over six ranges:
0 to 2.5 mg/m³
0 to 25 mg/m³
0 to 250 mg/m³
0 to 2500 mg/m³
0 to 25 g/m³
0 to 250 g/m³
The active range can be fixed or auto ranging.
Measurement resolution 0.001 mg/m³ on 2.5 mg/m³
Zero stability Typically <2 µg/m³/°C
Span stability Typically <±0.2 % of reading/°C
Temperature Operating 0 °C to 55 °C (non-condensing)
Storage –20 °C to +55 °C (non-condensing)
Power consumption
(at mid LCD brightness)
From external 12 V DC supply = 110 mA
From 3.6 V battery supply = 210 mA
From 4.5 V battery supply = 175mA
Battery Three AA / MN1500 cells
Alkaline or rechargeable NiMH
Battery run time Alkaline / NiMH (2700 mAh)
Typically 13.5 hours at medium backlight level
9 hours at maximum backlight level
Universal power adapter (-PC18)
Input voltage range:- 100 V to 240 V AC 47 Hz to
63 Hz
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