Casella CEL Microdust 880 IS real time dust monitor - Manual (Page 46)

Microdust 880nm & WinDust Application Software
Handbook HB3255-03
Page 46 of 51
Chapter 7 - Specifications.
Specifications
Ranges:-
Different instrument versions provide the following ranges:-
0-2.5, 0-25 mg/m3
0-25, 0-250 mg/m3
0-250,0-2500mg/m3
0-2.5, 0-25 g/m3
Operating Temp Range:- 0 to 40°C (non condensing)
Storage Temp Range:-
-20 to +55°C
Calibration:- Gravimetric method using ‘Arizona Fine’ calibration dust
Zero stability:- ±1.5 µg/ m
3
/°C
Span Stability:- <1% FSD /°C
Sensing technique Near forward light scattering - 880nm infra red
Battery:- 7.2V 800mA NiCd. (Intrinsically safe battery contains power limiting
resistors)
Operating Duration:-
Typically >10 Hours on a full charge. (>8 hours for 0-2.5/0-25mg/m3
versions)
Analogue output:
0-2.5 Volts DC, 1K
Ω
output impedance.
Display:-
16 Character x 2 Line Alphanumeric LCD with LED back light.
Keypad:- 4 key tactile membrane
Weight:- Instrument only = 1.5Kg (complete kit with flight case = 7.0 Kg)
Dimensions:- Instrument HxWxD = 195 x 100 x 40mm
Probe = 35mm
∅
x 330mm total length
Flight Case HxWxD = 115 x 450 x 340 mm
Maintenance:- Factory cleaning required annually depending on measurement
conditions.
I.S rating :-
EEx ia IIC T4 (I.S models identified by Ex label on rear of
instrument)
Displayed Values:-