Emerson Rosemount 148 Reference Manual page 27

Reference Manual
00809-0100-4148
3.3.4 Configuring with the Rosemount 148 PC Programmer
In order to operate properly, the Rosemount
configured. Some of the variables are factory configured, however, some of the variables
may need to be initially set up or revised. The first two tabs on the main screen are Basic
and Advanced Settings, which include all of the configuration variables that can be set for
the Rosemount 148. Any changes to the configuration must be sent to the transmitter by
selecting the Send to Transmitter button on the right of the screen. The current
configuration of the connected Rosemount 148 may be viewed by selecting the Load
From Transmitter button.
Transmitter identification
The Tag variable is the easiest way to identify/distinguish between transmitters. It can be
used to label transmitters electronically according to the requirements of the application.
The tag may be up to eight characters in length, and does not impact the measurement of
the transmitter.
Sensor configuration
The following sensors indicate the sensor type and the number of wires to be connected:
• 2-, 3-, or 4-wire Pt 100: α = 0.00385 Ω/°C
• 2-, 3-, or 4-wire Pt 100: α = 0.003916 Ω/°C
• 2-, 3-, or 4-wire Ni 120 nickel RTDs
• 2-, 3-, or 4-wire Cu 50: α = 0.00428 Ω/°C
• 2-, 3-, or 4-wire Cu 100: α = 0.00426 Ω/°C
• 2-, 3-, or 4-wire Cu 100: α = 0.00428 Ω/°C
• IEC/NIST/DIN Type B, J, K, N, R, S Thermocouples
• 2-, 3-, or 4-wire 0–2000 ohms
• –10 to 100 Millivolts
A complete line of temperature sensors, thermowells, and accessory mounting hardware
is available from Emerson.
Output configuration
The Output configuration area allows the user to set the desired measurement values for
the transmitter:
• Degrees Celsius
• Degrees Fahrenheit
• Degrees Rankine
• Kelvin
• Ohms
• Millivolts
™
148 has basic variables that need to be
Configuration
June 2019
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