Fisher-Rosemount 3095FT, Руководство пользователя

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5-3
Troubleshooting and Maintenance
Interpreting Model 3095FT
Alarms and Events All Model 3095FT alarms are entered in the event log. In addition,
specific alarm conditions are displayed on the optional LCD Meter, and
specific alarm conditions can be viewed via the Model 3095FT User
Interface software (see the Maintenance, Transmitter, Self Test
selection on Page 4-34). Table 5-2 summarizes these alarm messages.
Column 2 of Table 5-2 identifies an event code for major alarms and
events. Table 5-1 explains these event codes. Also note that the last
column of Table 5-2 identifies corrective actions, and when necessary
cross-references to sections of this manual for additional information.
TABLE 5-1. Event Code Explanation.
Event
Code
Alarm/Event Explanation
0 Fatal Alarm Non-recoverable error causing transmitter to stop calculations
1 Critical Alarm Error which may result in unreliable data
2 Warning Outside normal operational conditions
3 Return to Normal Return to normal operational conditions
4 or 5 Configuration Parameter
Changed User change to configuration parameter via HART command
TABLE 5-2. Model 3095FT Event and
Alarm Summary
Alarm Description,
UI Display - Self Test,
and Event Log Description
Event
Code
(Table
5-1)
Alarm
Code
(Index)
LCD
Display
Action
Power Up / Master Reset 2 0 F_NO_
SIGNAL The Model 3095FT has been reset by one of the following actions:
Power Up, Master Reset Command (Starting or exiting any
maintenance task), or Start Data Logging
Sensor module is not updating 0 1 F_NO_
SIGNAL The sensor module has undergone a component or software failure.
Replace the sensor module as described on Page 5-10. Contact your
Field Service Center.
DP signal exceeded Upper Range
Limit + 10% (URL + 10%) 1 2 C_DP_
O_RANG This display means that the transmitter differential pressure reading
exceeds its sensor limits by more than 10%. There are two possible
causes. Either the transmitter is overpressured, or it has a sensor
malfunction. Check the pressure input to the transmitter. If an
overpressure condition exists, correct it. If not, replace the sensor
module as described on Page 5-10.
DP signal return-to-normal 3 3 none No action required.
AP signal exceeded Upper Range
Limit + 10% (URL + 10%) 1 4 C_AP_
O-RANG This display means that the transmitter absolute pressure reading
exceeds its sensor limits by more than 10%. There are two possible
causes. Either the transmitter is overpressured, or it has a sensor
malfunction. Check the pressure input to the transmitter. If an
overpressure condition exists, correct it. If not, replace the sensor
module as described on Page 5-10.
AP signal is unreasonable - open
bridge 1 5 C_AP_
OPEN_B This display means that the transmitter absolute pressure reading
exceeds its sensor limits. There are two possible causes. Either the
transmitter is overpressured, or it has a sensor malfunction. Check the
pressure input to the transmitter. If an overpressure condition exists,
correct it. If not, replace the sensor module as described on Page 5-10.
AP signal below 0.5 psia 1 6 C_AP_
VERY_L This display means that the transmitter absolute pressure reading
exceeds its sensor limits. There are two possible causes. Either the
transmitter is underpressured, or it has a sensor malfunction. Check the
pressure input to the transmitter. If an underpressure condition exists,
correct it. If not, replace the sensor module as described on Page 5-10.
AP sensor shorted 0 7 F_AP_
SHORTD The sensor module has undergone a component or software failure.
Replace the sensor module as described on Page 5-10. Contact your
Field Service Center.