Technical data

Flow meter FC01-Ex Flow meter FC01-Ex
Technical implementation of customer calibration 31 Technical implementation of customer calibration 31
The following quantities are recorded:
The resultant T value is filed in the configuration menu under SENSOR SELECT - TYPE CALORIM-
CODE T… .
4.2.6.2 Establishing the new T value
At first, a new curve has to be recorded by setting the T value in the SENSOR SELECT menu
at T = 50.
With heads monitoring water or air (see introduction to this section) it is possible to use the
C value if similar media are to be monitored. It is necessary to set C1000 as basic value if the
characteristic quantities of a medium cannot be assigned to a medium group.
After setting the C and T values, the number of trim points and the temperature difference shall
be defined in the CUSTOMER TRIM menu.
Record the new curve as described, observing constant temperature conditions (T1, Y
T1
, V
T1
as
described).
After establishing and storing the new curve, the medium shall be heated to setting temperature (T2).
Then return to the CUSTOMER TRIM menu and select option old curve.
Address the trim point the control variable of which you wish to establish at temperature T2 and
the same velocity as when recording the new curve.
Compare the following values displayed:
TRIM POINT …
V = . . , . . m/s
Y = . . . . . (Y
T1
) with the values noted.
These values shall still be assigned to the old curve which was recorded at temperature T1. Then
set velocity V at the higher temperature T2.
Activate the automatic control variable determination in menu TRIM ACTIVE.
When the FC01-Ex has determined the new Y value, it is displayed and recorded (Y
T2
) as it is
needed for subsequently calculating the T value.
Temperature T2 (please note down) which will also be included in the calculations is displayed
before the calibration menu is quitted.
Then quit the menu without storing the data (▲ UP or ▼ DOWN) to prevent overwriting the old
curve.
The new T value is calculated by inserting the values determined for Y
T1
, T1, Y
T2
, T2 into the
formula.
Set the new T value in the configuration menu under SENSOR SELECT.
T = 50 + (Y
T2
- Y
T1
) / (T2 - T1)
The following quantities are recorded:
The resultant T value is filed in the configuration menu under SENSOR SELECT - TYPE CALORIM-
CODE T… .
4.2.6.2 Establishing the new T value
At first, a new curve has to be recorded by setting the T value in the SENSOR SELECT menu
at T = 50.
With heads monitoring water or air (see introduction to this section) it is possible to use the
C value if similar media are to be monitored. It is necessary to set C1000 as basic value if the
characteristic quantities of a medium cannot be assigned to a medium group.
After setting the C and T values, the number of trim points and the temperature difference shall
be defined in the CUSTOMER TRIM menu.
Record the new curve as described, observing constant temperature conditions (T1, Y
T1
, V
T1
as
described).
After establishing and storing the new curve, the medium shall be heated to setting temperature (T2).
Then return to the CUSTOMER TRIM menu and select option old curve.
Address the trim point the control variable of which you wish to establish at temperature T2 and
the same velocity as when recording the new curve.
Compare the following values displayed:
TRIM POINT …
V = . . , . . m/s
Y = . . . . . (Y
T1
) with the values noted.
These values shall still be assigned to the old curve which was recorded at temperature T1. Then
set velocity V at the higher temperature T2.
Activate the automatic control variable determination in menu TRIM ACTIVE.
When the FC01-Ex has determined the new Y value, it is displayed and recorded (Y
T2
) as it is
needed for subsequently calculating the T value.
Temperature T2 (please note down) which will also be included in the calculations is displayed
before the calibration menu is quitted.
Then quit the menu without storing the data (▲ UP or ▼ DOWN) to prevent overwriting the old
curve.
The new T value is calculated by inserting the values determined for Y
T1
, T1, Y
T2
, T2 into the
formula.
Set the new T value in the configuration menu under SENSOR SELECT.
T = 50 + (Y
T2
- Y
T1
) / (T2 - T1)