STACK 710 6 Theory of Operation and Application
ENVEA UK Ltd (PC-000878-MA Issue 7, December 2021) 55
6.5.3 Calibration Check
6.6 System Specification
6.6.1 STACK 710
Double pass/path transmissometry
Opacity 0 - 10 % to 0 - 100%
Optical Density 0 - 0.1 to 0 - 3.0
Dust Density 0-10 to 0 to 10000 mg/mg³
User Selectable
0.1 % Opacity; 0.001 Optical Density; 1 mg/m³
Dust
6 seconds to 95% of final value
Selectable from 10 seconds to 24 hours (in seconds)
Automatic zero and upscale calibration
(Selectable interval 1 to 24 hours in (in 1-hour increments)
Automatic correction for zero drift
128 x 64-pixel reflective backlit LCD
Power on, System OK, Calibration, Alarm