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Operation
5.4 Operating functions
OXYMAT 64
Operating Instructions, 06/2008, A5E00880383-03
59
With this subfunction, you parameterize various Autocal operating modes.
"Autocal/Check on/off":
During the state
"Autocal off" (shown as: "□"), the settings on the switch "Autocal start
cyclically (parameter)" and "Autocal start via binary input" do not have an effect on the
device.
"Trigger Autocal once" cannot be selected. The cycle time continues to run. No
automatic calibration is initiated, however.
"Autocal/Check start cyclically":
You can activate Autocal to be a regularly repeated cycle if you first set
"Time from Autocal
to Autocal (cycle time)" using subfunction "Autocal/Check cycle parameter".
The Autocal Check is only for checking the calibrations. As with Autocal, the device executes
the sequence parameterized in subfunction
"Autocal/Check sequence". As opposed to
Autocal, no new calibrations are carried out, but only the deviations are checked with respect
to selectable calibration tolerances.
"Autocal/Check start via binary input":
If you previously configured a binary input using function 72, you can initiate Autocal via a
binary input.
"Trigger Autocal once":
In the state
"Autocal on", you can start an Autocal sequence at any time using the softkey
"Trigger Autocal once" providing the device is in the "Measure" operating state. A sequence
initiated this way has no influence on the time cycle of an Autocal, i.e. the cycle time
continues to run independently of this.
After initiating, the dot disappears until the process is finished.
"Abort Autocal":
A running automatic calibration process can be exited at any time using the softkey
"Abort
Autocal". With this, all calibration data determined up to that point are discarded and the
calibration data used before Autocal was started are used further (zero and span).
Canceling has no influence on the time cycle. All valid calibration processes are retained.
AUTOCAL sequence
Acal/-check sequence O
2
Figure 5-16 AUTOCAL/Check sequence
With this subfunction, you can combine several calibration phases to form one Autocal
sequence.