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Reference Manual
IP2048/RM, Rev AA
Appendix F: Configuring Using HART
February 2015
F.4.12 Temperature for SoS calculation (D915)
This indicates the temperature used in calculating the temperature-corrected speed of sound
(see above). The temperature may be a live or fixed value depending on the configuration of the
parameter Temperature (page 132).
Note
The live temperature is always indicated in the read-only parameter Temperature / Fourth
Variable (FV) (page 150).
Field Communicator
To view the temperature used for calculating the
speed of sound:
1. From the Home screen, select 3: Service Tools.
2. Select 1: Alerts.
3. Select 2: Diagnostic Data.
4. Select 2: Speed of Sound Data.
5. Select 2: Temperature for Calculation D915.
6. When finished, press EXIT to exit to the previous menu.
Note
This is also at the Fast Key sequence 2, 2, 8 [or 9], 1, 6
(see Appendix E: Field Communicator).
Mobrey MCU900 Series control unit
To view the temperature used for calculating the
speed of sound:
1. From the Main Menu screen, select MONITOR.
2. Select the transmitter (e.g. “Tx1:MSP400RH”).
3. Select DIAGNOSTICS.
4. Select Temp SoS Calc.
5. When finished, press the ESC key to exit to the previous menu.
Note
Units are in C or F depending on the base units selected (see page 90).
Fast Keys
3, 1, 2, 2, 2
Temperature for Calculation D915
67.901 degF
EXIT
HELP
(Field Communicator Screen)
Temp SoS Calc D915
67.9
F
(Mobrey MCU901 Screen)