Rosemount 248R Temperature Transmitter
Rosemount 248R temperature transmitter
The Rosemount 248 temperature transmitter has a standard transmitter design that provides
flexible and reliablie performance in process environments. Transmitter features include:
• HART / 4-20 mA communication protocol
• Rail Mount transmitter type
• 3-Point Calibration Certificate (Option Code Q4)
• Custom Configuration of Software Parameters (Option Code C1)
User-selectable; sensor terminals rates to 42.4 Vdc. See
“Transmitter Accuracy and Ambient Temperature Effects” on
page 8 for sensor options.
2-wire 4–20 mA, linear with temperature or input; digital output
signal superimposed on 4–20 mA signal, available for a Field
Communicator or control system interface.
Input/output isolation tested to 500 Vac rms (707 Vdc) at 50/60 Hz.
An external power supply is required for HART devices. The
transmitter operates on 12.0 to 42.4 Vdc transmitter terminal
voltage with load resistance between 250 and 1100 ohms. A
minimum of 17.75 Vdc power supply is required with a load of 250
ohms. Transmitter power terminals are rated to 42.4 Vdc.
• –40 to 85 °C (–40 to 185 °F)
• –50 to 120 °C (–58 to 248 °F)
Performance within specifications in less than 5.0 seconds after
power is applied to transmitter, when damping value is set to zero
Less than 0.5 seconds
32 seconds maximum. 5 seconds default
Teachnical parameters :
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