Rosemount Models 3144 and 3244MV Smart Temperature Transmitters
6-2
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.
Trim to Special Sensor
(Option Code C7)
You may order the transmitter trimmed to a special sensor (Option
Code C7). Order this option when using a non-standard sensor type.
Refer to Table 5-1 on page 5-10 for a list of standard sensor types.
A characterization schedule for any RTD can be entered as
Callendar-Van Dusen constants with a Model 275 HART
Communicator. The constants can be entered on site or at the factory.
For information on ordering sensors matched to the transmitter using
Callendar-Van Dusen constants, refer to the Rosemount Sensors
Product Data Sheet publication no. 00813-0100-2654 (Volume 1) or
00813-0101-2654 (Volume 2).
When a non-standard sensor is used as the input to the transmitter, the
resistance versus temperature curve for a non-standard RTD, or the
millivolt versus temperature curve for a non-standard thermocouple, is
stored in the transmitter memory. This process is performed at the
factory. The transmitter must be configured for a “special” sensor
calibration to access the special curve, but you may use any standard
input when the transmitter is configured for a “standard” sensor.
When a Model 3244MV transmitter is ordered with Option Code C7,
only one sensor input can be configured as the “special” sensor. The
other input must be configured as one of the “standard” sensor types
available on the transmitter.
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
Figure 2-9 on page 2-10. 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).