Functions
8.3 Calibration
FIDAMAT 6
Operating Instructions, 01/2019, A5E00222135-04
85
initiated in this way has no effect on the time cycle of an AUTOCAL, i.e. the cycle time
continues to run independent of this.
After initiating, the dot disappears until the process is finished.
"Abort autocal":
A running automatic calibration operation can be exited at any time using the
"Abort autocal"
softkey. With this, all calibration data determined up to that point are discarded and the
calibration data valid before AUTOCAL was started continues to be used (zero and span).
The abort has no effect on the time cycle. All valid calibration operations are retained.
AUTOCAL sequence
Figure 8-10 AUTOCAL/-check sequence
With this subfunction, you combine several calibration phases to form one AUTOCAL
sequence.
You can arrange the automatic calibration as you wish. It is possible to "compose" a
sequence of up to twelve different phases.
Besides the supply of one zero gas and up to four calibration gases per component, you can
also program purging with sample gas and a sample gas intermediate operation as well as a
signaling contact. The signaling contact is available if you previously assigned it to a relay
output using function 71.
Sample gas intermediate operation
Sample gas intermediate operation can be necessary if the system may only leave
measuring mode for a certain time. If the required purge times are greater in total than the
permissible downtime, measuring mode must be returned to between calibrations.
Signaling contact
Use the signaling contact, for example, to initiate an automatic calibration operation of a
second device or to signal the beginning or end of an AUTOCAL.
Relay outputs
If you have defined relay outputs for the sample gas, zero gas, calibration gases and/or
measuring/calibration (function 71), these are used to actuate the corresponding external
To Next Page
Loading...
