Access to the Engineering Menu is gained by using a special password.
At any password request enter the number 2882 and press ENTER. This will allow access to the menu.
Preamp Gain
The MCT has a software adjustable preamp gain factor. This factor is the gain applied to the filter
signals coming from the detector.
The amplification applied to the signals is:
Amplification =
225
Gain Factor
The correct setup for the MCT is to have the largest filter signal, after amplification, to be 8.0 volts
when viewing the product to be measured. This value is achieved by adjusting the gain factor.
Algorithms
The MCT uses the 6 filter signals in a pre-programmed algorithm. By selection of the correct filter
coefficients, the different algorithms may be formed for the measured constituents
Basic Algorithm
:
C1F1+C2F2 + C3F3 + C4F4 + C5F5+C6F6
K1F1+K2F2+K3F3+K4F4+K5F5+K6F6
The filters on the top of the equation are all reference filters
The filters on the bottom of the equation are all reference filters.
Each filter has associated with it a coefficient, C1 – C6 or K1-K6. These coefficients can be set to a
value b/-999. Typically coefficients will range between 0 and + 1.0
By setting the coefficients of the filters, different algorithms may be made for the constituents being
measured by the MCT.
Changes to the factory set coefficients requires the data sheet that was supplied with the MCT 300 as it
lists the filters fitted to the MCT 300.
Viewing and changing the coefficients for the algorithms
From the Gain Screen, press the DOWN arrow each time to view the coefficients set for the constituent
shown on the top line of the display.
Use the Display Rotate key to switch to the coefficients set for the second constituent.
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