GASLAB Q2 DISPLAYS (OPERATE THE DEVICE)
Information for general use
Rev. M / 73023639
The first element that can be selected in the control and information lines is the “Details” button.
It allows intermediate results to be viewed in another display.
Once again, the selection and activation is done using the superimposition keys.
The Q2 standard details display shows intermediate results for the selected calculation standard.
The following examples show the appearance of the display after branching with details:
Figure 7.48: Q2 – Standard A details/Q2 – Standard B details
The line with the details of “Operation” and “Step” is also displayed here. The next line contains the
calculation standard in double size. Values are calculated for partly saturated, dry and humid gas
for the set reference status.
The superior/inferior calorific value changes if the gas contains water vapor.
Depending on the quantity, a distinction is made between dry and partially
saturated or saturated (humid).
Values for the partly saturated or humid gas are lower than for dry gas since water
vapor and combustion gas components divide the volume.
Specified water vapor saturation values in the superior/inferior calorific value results
for three assumed states (dry/humid/partly saturated) are used in the calculation
method.
The actual water vapor content must be calculated, for example, from humidity or
dew point measurements.
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