Rosemount Models 3144 and 3244MV Smart Temperature Transmitters
6-8
NOTE
Do not remove the transmitter security jumper from the face of the
electronics module. The LCD meter installs over the transmitter
security jumper.
5. Insert the interconnection header in the six-pin socket on the face
of the electronics module. Insert the longer set of pins into the
electronics module socket.
6. Decide which direction to orient the meter. The meter can be
rotated in 90-degree increments for easy viewing. Position one of
the four six-pin sockets on the back of the meter to accept the
interconnection header, and insert the long meter screws into the
two holes on the meter assembly that coincide with the
appropriate holes on the electronics module.
7. Attach the meter assembly to the interconnection pins. Thread
the long meter screws into the holes on the electronics module
and tighten to secure the meter assembly.
8. Insert the failure mode jumper, removed in Step 3, in the
appropriate position in the three-pin socket on the face of the
meter (see “Failure Mode Jumper” on page 2-7).
9. Attach the extended cover; tighten at least one-third turn after
the O-ring contacts the transmitter housing. Both transmitter
covers must be fully engaged to meet explosion proof
requirements.
10. Use a Model 275 HART Communicator to change the transmitter
meter setting from
UNUSED
to the desired display. Refer to
“Meter Settings” on page 3-6, for information on configuring the
transmitter to recognize the LCD meter. Before connecting a
HART communicator, make sure the instruments in the loop are
installed in accordance with intrinsically safe or non-incendive
field wiring practices.
NOTE
Observe the following LCD meter temperature limits:
Operating:
–4 to 185 °F (–20 to 85 °C)
Storage:
–50 to 185 °F (–45 to 85 °C)
Diagnostic Messages
In addition to the output, the LCD meter displays abbreviated
diagnostic messages for troubleshooting the transmitter. To
accommodate two-word messages, the display alternates between the
first and second word. Some diagnostic messages have a higher priority
than others, so messages appear according to their priority, with
normal operating messages appearing last. The meter displays
messages simultaneously on the
Process Variable
and
Process Variable
Unit
lines as shown in Figure 6-4. Messages on the
Process Variable
line refer to general device conditions, while messages on the
Process
Variable Unit
line refer to specific causes for these conditions. A
description of each diagnostic message follows.
See “Safety Messages” on page 6-1 for complete warning information.
