3-65
Chapter 3 Starting and Stopping this Device
3-11-3 Out-of-Range Pressure Event Count
The number of times the process pressure exceeds a preset threshold pressure (high or low limit)
is counted. If the out-of-range pressure event count is greater than the alarm threshold, an alarm is
issued.
(1) Parameters Related to the Out-of-Range Pressure Event Count
The parameters related to the out-of-range pressure event count are shown below. For details on the
attributes, see the CommStaff Operating Manual (HART 7).
OOR Pressure Count Out-of-range pressure event count
Reset OOR Pressure Count Resetting of the out-of-range pressure event count
Normal Pressure High Limit Upper limit of normal pressure for the out-of-range pressure event
count
Normal Pressure Low Limit Lower limit of normal pressure for the out-of-range pressure event
count
OOR Count Alarm Use Operating mode of the out-of-range pressure event count alarm
OOR Count Alarm Threshold Threshold of the out-of-range pressure event count alarm
(2) Preparation
To reset an already generated out-of-range pressure event count, execute Reset OOR Pressure
Count.
(3) Checking the Settings
For information about setting the following descriptive parameters, see the operating manual for
the relevant communicator.
(i) Setting the alarm
Set the following parameters for the alarm threshold of the out-of-range pressure event count.
OOR Count Alarm Threshold: The possible setting range is 100,000 or less.
Next, set the operating mode of the out-of-range pressure event count alarm.
OOR Count Alarm Use: The possible settings are shown below.
Disabled: Alarm is not used.
Enabled: Alarm is used.
(ii) Alarm detection
If an out-of-range pressure event count alarm is detected, it is reported as the appropriate self-
diagnostic status. See section "4-4 Troubleshooting"
(iii) Threshold pressure
Set the following for the out-of-range pressure event count threshold pressure (high and low
limits).
Normal Pressure High Limit: −1.5*URL to 1.5*URL
Normal Pressure Low Limit: −1.5*URL to 1.5*URL
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