*  Full environmental report and analysis facility by    linking to a PC and printer via optional    DustReporter software *  Up to 4 channels of monitoring via expansion    module and 255 channel capability *  Employing Dynamic Opacity technology offering    very low maintenance with no blower motors *  Built-in self-checks, diagnostics, advanced    system features and onboard 24 hr memory and    calibration

(please click on a link below to go directly to that are on this page) Reliability Optimized Instrument Specifications

The SC600 is a microprocessor based optial measuring system which uses a dynamic sensing technique to measure the rate of change of light (Dynamic Opacity) as particulates pass through an infared light beam.  This proven optical technique coupled with advanced design features offers significant reliability and resolution advantage over traditional Opacity monitors and virtually overcomes lens fouling associated with standard Opacity monitors.  The SC600 is suitable for continuous monitoring of particulate emissions from flue stacks, combustion processes and Electrostatic filters, as well as other types of arrestment plant operations.

 

 

                                             Principles of Operation

 

The SC600 continuous particulate monitor works on the principle of optical scintillation.  This technique monitors the variation in the amount of received light from the light beam transmitted across the stack.  The variation derives from the temporal distribution of particulate which attenuates the light beam.  The SC600 calculates the dynamic response (ratio of light variation to light intensity or obscuration).  This method has the added benefit that the measurement is unaffected by lens contamination.  The instrument response which is proportional to dust concentration is used to calculate Ringlemann, extinction and is calibrated to read in mg/m3 by reference to an iso-kenetic sample (mass gravimetric technique).  As the instrument is already measuring obscuration then Opacity can also be viewed on the display along with Ringlemann and extinction.

 

 

                                              Reliability Optimized

 

The Scintilla SC600 give extended periods of operation without maintenance.  In addition to the intrinsic benefits of Dynamic Opacity technology, advanced techniques are used to reduce or eliminate zero and span drift and stray light.

 

 

*  The ratio of the signal scintillation to absolute light intensity is measured which compensates

    for any effects of lens build-up, misalignment of light source aging.  Measurement in

    scintillation mode is unaffected until lens fouling is greater than 90%.

 

*  Air purges can be used to minimize build-up in the first place.

 

Less Condition	Light Intensity	Variation	Scintillation
100% transmission   90% transmission   50% transmission	1 0.9 {I} 0.5 {I}	x 0.9 x 0.5 x	x/{I} 0.9 x/0.9 {I} = x/{I} 0.5 x/0.5 {I} = x/{I}

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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*  A modulated light beam enables the detector to eliminate stray and ambient light effects, along with interference from gases in the flue gas.

 

 

                                           Instrument Specifications

 

Resolution	0.2 mg/m3  0.01% opacity
Response Time	<10 seconds for 95% change
Self Checks	Automated zero, span and lights checks
Light Source	Modulated LED (infared spectrum)

 

 

 

 

 

 

 

 

 

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