5
Functional description
Page 38
gas-lab
Q1
5.1.2.2
Basic calibration / 3-point calibration
Such a basic calibration is generally performed on the occasion of the yearly
routine testing. Trained and qualified staff must perform the basic calibration.
Although it runs automatically, the process steps are supported via the operator
panel of the evaluation computer.
The calibration switch at the
gas-lab
Q1 must be
open
to facilitate a basic
calibration.
The following reactions of the evaluation computer are indicating the status of
the 3-point calibration:
During the parameterisation of the
gas-lab
Q1 you may determine whether
or not the last valid gas quality values shall be maintained via measurement
outputs and on the basic display of the computer during this time.
The display shows
3P-cal.
during
calibration.
A
Revision
message will
be
generated
.
If you want to abort the function prematurely, do so by keeping to the following
instruction sequences:
In case you are not in the
Calibration
module: Invoke the menu from the basic
display, select
Calibration
and confirm the selection.
Invoke the menu and then select
Cal. Cancel
.