Device Functions Proline t-mass 65 11 Group PULSE/FREQUENCY OUTPUT
Endress+Hauser 33
TIME CONSTANT Use this function to enter a time constant defining how the frequency output signal reacts
to severely fluctuating measured variables, either very quickly (enter a low time constant)
or with damping (enter a high time constant).
! Note!
This function is not available unless the FREQUENCY setting was selected in the OPERA-
TION MODE function.
User input:
floating-point number: 0.0 to 100.0 s
Factory setting:
0.0 s
FAILSAFE MODE For reasons of safety it is advisable to ensure that the frequency output assumes a prede-
fined state in the event of a fault. The setting you select here affects only the frequency
output. It has no effect on other outputs and the display (e.g. totalizer).
! Note!
This function is not available unless the FREQUENCY setting was selected in the OPERA-
TION MODE function.
Options:
FALLBACK VALUE
Output is 0 Hz.
FAILSAFE LEVEL
Output is the frequency specified in the FAILSAFE VALUE function.
HOLD VALUE
Measured value output is based on the last measured value saved before the fault
occurred.
ACTUAL VALUE
Measured value output is based on the current flow measurement. The fault is ignored.
Factory setting:
FALLBACK VALUE
FAILSAFE VALUE Use this function to define frequency that the transmitter outputs in the event of an error.
! Note!
This function is not available unless FREQUENCY was selected in the OPERATION
MODE function and FAILSAFE LEVEL was selected in the FAILSAFE MODE function.
User input:
max. 4-digit number: 0 to 1250 Hz
Factory setting:
1250 Hz
ACTUAL FREQUENCY Use this function to view the computed value of the output frequency.
! Note!
This function is not available unless the FREQUENCY setting was selected in the OPERA-
TION MODE function.
Display:
0 to 1250 Hz
Function description PULSE/FREQUENCY OUTPUT
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