Siemens FIDAMAT 6 Operating Instructions Manual page 113

With softkey 3
monitoring.
If you previously configured a relay output to "Maintenance request" using function 71, the
device outputs changes of the zero point or span with respect to the last calibration as
"Maintenance request".
Note
In order to be able to use this function, "Total range calibration" (function 23) must be
activated.
With
smallest span in %.
With
current span in %.
The calibration tolerance, which can be set from 0 to 99%, refers to the span of the smallest
measuring range in the case of the zero point and to the span of the measuring range in
which the total range calibration is being performed (marked with "■" in function 22) in the
case of the span.
Example
Measuring range 1
Measuring range 2
Smallest span
Leading measuring range in which calibration is
being performed
Response threshold for zero point
Response threshold for span
If the zero/span deviates by more than the configured value compared to the last calibration,
and if "Signal tolerance violation" is activated, the corresponding relay signals a maintenance
request.
See also
Total / single calibration (function 23) (Page 69)
FIDAMAT 6
Operating Instructions, 03/2018, A5E00222135-03
"Signal tolerance violation"
"Calibration tolerance at zero..."
"Calibration tolerance at span ..."
, you activate or deactivate the tolerance
, you define the maximum deviation in relation to the
, you define the maximum deviation in relation to the
5 to 100 ppm THC
20 to 200 ppm THC
95 ppm THC
Measuring range 2
95 ppm THC x 10% = 9.5 ppm THC
180 ppm THC x 10% = 18 ppm THC
Functions
6.6 Configuration
111