Average Temperature (Option Code U6; Additional Options; Calibration Certificate (Option Code Q4; Quality Certification For Safety Instrumented Systems - Emerson Rosemount 3144P Reference Manual

Reference Manual
00809-0100-4021, Rev AA
March 2002

Additional Options

Average Temperature (Option Code U6)

This configuration can be used when the average measurement of two
different process temperatures is needed. If a sensor fails, the analog alarm
will be activated and the digital primary variable will hold the measurement of
the working sensor.
Option Code U6: Model 3144P Custom Output Configuration
Primary Usage
Primary Variable (4–20 mA)
Secondary Variable
Tertiary Variable
Quaternary Variable

Calibration Certificate (Option Code Q4)

Option Code Q4 specifies that a calibration certificate be shipped with the
transmitter. If a Five-Point Calibration (Option Code C4) is also ordered,
calibration data for five points will be included on the calibration certificate. If
Option Code C4 is not ordered, only three points (0, 50, and 100% analog and
digital output points) will be on the certificate.

Quality Certification for Safety Instrumented Systems

(Option Code QS)

Third Party testing on the Model 3144P was performed per IEC 61508
standards for SIS. Option code QS specifies that the testing result metrics be
shipped with the transmitter. The Model 3144P results dramatically increase
the safety factor for the temperature transmitter used in critical loop safety
calculations.

Mounting Brackets (Option Codes B4 and B5)

The transmitter can be mounted directly to the sensor, or in a remote location
with one of two stainless steel mounting brackets. Refer to "Optional
Transmitter Mounting Brackets" on page A-8. The brackets facilitate mounting
to a panel or a 2-inch pipe, and include stainless steel bolts. When installing
the transmitter with a bracket, torque the bolts to 125 in.-lb (14 n-m).

Assembly Options (Option Code X1, X2, and X3)

Option Code X1, X2, or X3 specifies that the transmitter will be assembled to
a sensor at the factory. The same option code must be included on the
Rosemount sensor model number. These options are only available with the
transmitter when ordered in conjunction with an integral transmitter or
connection head.
Assembly descriptions for each option code:
NOTE
X1 and X3 are not available with CSA Approvals Option (Codes K6 and KB).
Model 3144P
When average measurement of two different process
temperatures is required.
If a sensor fails, the analog alarm will be activated
and the digital primary variable will hold the
measurement of the working sensor.
Sensor Average
Sensor 1
Sensor 2
Terminal Temperature
A-15