Siemens SIPROCESS GA700 Quick Start Manual page 97

Calibration parameters are assigned manually. Calibrations are distinguished by the
following features:
● Person group:
– "Customer calibrations" (zero point and/or span gas calibrations)
– "Factory calibrations" (normalization and phase calibration).
The section below only covers the area of "Customer calibrations". Information on factory
calibrations is available under → [2.20.03] Factory calibrations. Contact you Siemens
sales rep for more information.
● Single/total: Calibration of only one or all measuring ranges
● Measuring range
● Component
After the start of a calibration, a wizard in the display supports you with preset calibration
steps.
Validation
You use a validation to check whether the deviation from the last calibration is still within the
validation tolerance. If the deviation is outside the validation tolerance, a new calibration is
necessary.
Validation uses the same process steps as calibration. But the validation operation checks
whether the deviation between the actual value and setpoint is still within an assignable
tolerance band. No calibration factors are changed in the process.
If a validation detects a tolerance violation, a corresponding message is output. The
message disappears after a successful calibration.
Types of calibration
You can set the following types of calibration:
Table 7- 1 Types of calibration ("Customer calibrations")
Calibration
1-point zero gas calibration
1-point span gas calibration
Quick Start
Compact Operating Instructions, 05/2018, A5E31805656-06
Description
This calibration eliminates drifts in the zero point. The setpoint corresponds to the
actual value in the zero point.
This calibration eliminates drifts in the span point by adjusting a sensitivity factor
accordingly. The setpoint corresponds to the actual value in the span point.
Commissioning
7.7 Commissioning the device
97