Reference Manual
00809-0100-4738, Rev DA
May 2006
Rosemount 3095FB
5-4
20407 0 A SP sensor shorted The sensor module has undergone a component or software failure.
Replace the sensor module as described on page 5-7. Contact your
Field Service Center.
20408 15 A SP signal is unreasonable -
open bridge
This display means that the transmitter absolute (or gage) 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 5-7.
20408 14 A PT signal exceeded Upper
Range Limit + 10%
Check the transmitter RTD connector and RTD screw terminals to
ensure the RTD cable is properly connected. Verify that the process
temperature is between -40F and 400F. If process temperature
exceeds these limits, correct the temperature. If process temperature
is within these limits, replace the sensor module as described on
page 5-7.
20408 13 W PT signal exceeded Upper
Range Limit
No action required.
20408 12 W PT signal exceeded Upper
Operating Limit
No action required.
20408 11 PT signal is less than Lower
Operating Limit
No action required.
20408 10 W PT signal is less than Lower
Range Limit
No action required.
20408 9 A PT signal is less than Lower
Range Limit - 10%
Check the transmitter RTD connector and RTD screw terminals to
ensure the RTD cable is properly connected. Verify that the process
temperature is between -40 °F and 400 °F. If transmitter temperature
exceeds these limits, correct the temperature. If transmitter
temperature is within these limits, replace the sensor module as
described on page 5-7.
20408 8 A RTD is disconnected Check the transmitter RTD connector and RTD screw terminals to
ensure the RTD cable is properly connected.
20408 7 A ST signal is greater than high
limit
This message indicates that the ambient temperature limit of the
transmitter is being exceeded. Verify that the transmitter ambient
temperature is between -40 °F and185 °F. If transmitter temperature
exceeds these limits, correct the temperature. If transmitter
temperature is within these limits, replace the sensor module as
described on page 5-7.
20408 6 A ST signal is less than lower
limit
This message indicates that the ambient temperature limit of the
transmitter is being exceeded. Verify that the transmitter ambient
temperature is between -40F and 185F. If transmitter temperature
exceeds these limits, correct the temperature. If transmitter
temperature is within these limits, replace the sensor module as
described on page 5-7.
20408 5 Reserved NA.
20408 4 Reserved NA.
20408 3 Reserved NA.
20408 2 Reserved NA.
20408 1 Reserved NA.
20408 0 Reserved NA.
TABLE 5-2. Rosemount 3095FB Alarm and Event Summary
Floating
Point Reg./
Bit Posit.
Sets
Alarm/
Warning
Flag?
Alarm
Description
Action