Casella CEL Software for the Microdust dust monitor - Manual (Page 51)

6. SPECIFICATION
6.1 Instrument Specification
Measurement
Sensing technique: Forward light scattering (12 to 20 o ) using
880 nm infra red source.
Measuring Range: 0.001 - 2,500 mg/m 3 over four ranges
0 - 2.5, 0 - 25, 0 - 250 and 0 - 2500 mg/m 3 .
Active range may be fixed or auto ranging.
Resolution: 0.001 mg/m 3 .
Zero stability: Typically <2 µg/ m 3 / o C.
Span Stability: ±0.7% of reading / o C.
Operating Temp Range: 0 to 50 o C (non condensing).
Storage Temp Range: -20 to +55 o C (non condensing).
Power Supply
Instrument Power Consumption:
Approx. 100 mA.
Battery: 4 x AA / MN1500 cells Alkaline or
rechargeable Nickel Cadmium.
Operating run time: Alkaline Batteries (2700 mAh), typically
>20 hours,
Rechargeable NiCd cells (950 mAh),
typically >9 hours
Battery Charging Internal NiCd fast charger circuitry.
Charge termination based on Negative
delta V detection with additional time-out
protection.
Charger must be disabled for dry cell
operation.
Charge Rate Fast charge rate 450 mA,
Standby charge rate 55 mA approx.
Power adapter (-PC18) Universal with input voltage range
100 - 240 VAC, 47 - 63 Hz.
Output 12 VDC at 0.8 A.
Supplied with connectors suitable for
USA, UK, European and Australian mains
outlet sockets.
The instrument may be powered
continuously from the external power
adapter.
Page 51 of 60
Specification MICRODUST pro Aerosol Monitoring System &
WINDUST pro Application Software - Handbook