Rosemount Models 3144 and 3244MV Smart Temperature Transmitters
5-16
c. If any of the next three measurements is outside the new
threshold value (at Time = 500 ms), the output remains
unchanged at the initial reading (Time = 0 ms). The
transmitter remains in a hold period until four consecutive
measurements are within the threshold value of the first in
the series.
d. If an open sensor is validated at the end of the first update
cycle (Time = 500 ms), the output will go directly to alarm
level. The original spike (at Time = 0 ms) will not be seen at
the output.
Case 3: Temperature Change Within the Threshold Value
If the transmitter detects an input change that is within the
threshold value, it reports the new value within one output cycle
(500 ms).
Time (in 500 ms increments)
Input
Output without
Algorithm
Output with
Algorithm
(Default)
Total o f A ll
Step Changes
Step Changes Greater
Than Threshold Value
0 500 1000 2000 2500 3000 3500 40001500
Time (in 500 ms increments)
Input
Output without
Algorithm
Output with
Algorithm
(Default)
Open Sensor
False Output Equal to
Threshold Value
Alarm
0 500 1000 2000 2500 3000 3500 40001500
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