Siemens SIPROCESS GA700 Operating Manual page 164

Functions
6.9 [2.10] Settings > Correction of cross-interferences
Table 6- 43 ULTRAMAT 7: Application scenario 2
Description of application scenario 2
Conditions
Consequence
Result
Corresponds to application scenario 4 with OXYMAT 7
1)
Table 6- 44 ULTRAMAT 7: Application scenario 3
Description of application scenario 3
Conditions
Consequence
Result
Corresponds to application scenario 5 with OXYMAT 7
1)
164
1)
The interference gas concentration is variable
•
The influence of interference gas is known and can be entered.
•
Selection of measured value source for the interference gas.
•
The interference gas is measured in the selected unit here.
•
Enter substitute value in the selected unit: If the measured value of the interference gas con-
centration is invalid or not available, the device works with the concentration of the substitute
value.
Input of correction coefficient k1 in % [measured value unit / interference gas unit]
•
The influence of the interference gas is determined from the measured interference gas and the
input coefficient:
Scenario 1: The interference gas concentration is measured and is valid.
•
Scenario 2: The interference gas concentration cannot be measured or is invalid.
•
1)
The interference gas concentration is variable.
•
The influence of the interference gas is not known and can be determined by the wizard.
•
Selection of measured value source for the interference gas.
•
The interference gas always needs to be measured in %.
Enter substitute value in the selected unit: If the measured value of the interference gas con-
•
centration is invalid or not available, the device works with the concentration of the substitute
value.
Determine coefficient k1 with linear dependence and additionally k2 with quadratic depend-
•
ence (setpoint/actual value comparison). Selection in wizards. Always enter the setpoint in
the unit of the measured value.
The influence of the interference gas is determined from the measured interference gas and the
calculated coefficient:
Scenario 1: The interference gas concentration is measured and is valid.
•
Scenario 2: The interference gas concentration cannot be measured or is invalid. A substitute
•
value is used instead of the measured interference gas value.
Operating with the Local User Interface
Operating Manual, 06/2017, A5E31930478-05