SPECIFICATIONS

Measured parameters: Light scattering coefficient (σsp) at (450, 525 and 635nm)
Backscatter coefficient (bσsp) at (450, 525 and 635nm)
Ranges: 0.0 to >20000 Mm-1
Lower detectable limit: <0.3 Mm-1 full and back scatter (60 second averaged data)
(0.1 Mm-1 optional)
Secondary measurements: Sample air temperature, RH and pressure. Enclosure temperature.
Intensity function full scatter 9-170 ºC
back scatter 90-170 ºC, parameterised by Mueller et al, 2010
Flow rate: ≈5 SLPM with defaut blower. Higher flow can be obtained using the
external pump option (in case of common inlet e.g.).
Operating temperature: -20 to 45 ºC
Operating RH: 10 to 95 %
Calibration: Span gas available for CO
2, SF6, FM-200, R-12, R-22, R-134 or a user
defined gas
Optics: Reference light source measurement
Light source: Stable LED light source (U.S. patent 7, 671, 988)
Wavelength: 525nm (green), 450nm (blue) and 635nm (red)
Operating voltage: 12 VDC (incl 110-240 VAC 50/60 Hz power converter)
(14 watts nominal, 45 watts with heater active)
Dimensions: 170mm x 700mm x 215mm (L x W x H)
Weight: 11.2kg
Communications/Data logging
Outputs: 4 analogue outputs (2 voltage & 2 current) and 2 x RS 232 serial ports
Filtering: Kalman (digital adaptive filter), moving average (30 seconds) or no filter
Stored parameters: Date & Time, σsp(635, 525 and 450), Air temperature, Enclosure tempera
ture, RH, Pressure instrument status
Capacity: Maximum of 33 days of 5 minute averages, or 6 days of 1 minute averaged
data

LOWER COST OF OWNERSHIP
• Fully automatic zero and span calibrations.
• Low power internal 12V sample heater.
• Long lasting low power LED light source.
• No bandpass filters to be replaced.
• Easy to clean measurement cell.

OPTIONS

• External pump control
• Sample bypass valve used in conjunction with external pump plate kit
• Roof flange kit and rain cap with insect screen
• Gas calibration kit and wall mount bracket