Emerson Rosemount 1208C Reference Manual page 84

Configuration parameters
March 2023
Figure B-6: Upper Null Zone
A
C
A. Upper Null Zone
B. Disturbance echo
C. 100% (20 mA)
D. General threshold
E. Product surface echo
Related information
Change the upper null zone
Measurement recovery time
The Measurement Recovery Time (Echo Timeout) parameter controls the maximum
time from when measurement is lost (e.g. due to process conditions such as foam or
turbulence) until it is annunciated. If measurement is recovered within the time specified
by this parameter, then it will not be annunciated.
84
B
D
E
0 150 300 450 600 750 900
m
3.0
2.5
2.0
1.5
1.0
0.5
0
mV
Rosemount 1208C Level and Flow Transmitter
Reference Manual
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