Galvanic Applied Sciences 943-TGX, Руководство по эксплуатации

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Revision 4 41 August 02, 2019
a)
Analog Output Full Scale
- These fields can be used to set the full scale range for the
H
2
S, SO
2
and COS, the Air Demand and whichever parameter is selected for Analog Out
4. If one of these fields is selected, a dialog box similar to that shown in Figure 4-6 is
presented to enter the desired value.
b)
Analog Output 4 Setup
- The radio button corresponding to the desired parameter to be
output by Analog Out 4 should be selected.
c) SVAP Control - The amount of sulfur vapor (S
vap
) detected in the tail gas indicates if the
sample probe’s cooling finger is at the optimum temperature. The probe’s cooling finger
temperature is controlled by using a solenoid valve to direct the flow of instrument air
through the finger off and on. The cooling finger temperature can be optimized in 2 ways:
• By Svap – The concentration of sulfur vapor is monitored. If the concentration goes
above a pre set limit, then instrument air will be introduced to the probe’s cooling finger.
•
By RTD – The temperature of the tail gas exiting the probe is monitored. If the
temperature goes above a pre set limit then instrument air will be introduced to the
probe’s cooling finger.
4.8.2 Calculation Sub-Panel
The
Calculation
sub-panel (Figure 4-10) is used to set a broad range of calibration
parameters.
Figure 4-10: Calculation Sub-Panel