Section
3-1
3
On-line Operations
OVERVIEW
This section contains information needed to configure and format the
Model 3144 and 3244MV Smart Temperature Transmitters. The
transmitters can be configured either on-line or off-line. During on-line
configuration, the transmitter is connected to a HART communicator.
Data are entered in the working register of the communicator and sent
directly to the transmitter. Off-line configuration consists of storing
configuration data in a HART communicator while it is not connected to
a transmitter. Data is stored in nonvolatile memory and can be
downloaded to the transmitter at a later time.
NOTE
The information in this section applies to the use of a Model 275 HART
Communicator to communicate with a Model 3144 or 3244MV Smart
Temperature Transmitter. For information regarding the use of a Model
268 Communicator, refer to Appendix C: Model 268 SMART FAMILY
Interface.
SAFETY MESSAGES
Instructions and procedures in this section may require special
precautions to ensure the safety of the personnel performing the
operations. Information that raises potential safety issues is indicated
by a warning symbol ( ). Please refer to the following safety messages
before performing an operation preceded by this symbol.
Warnings
Explosions may result in death or serious injury.
•
Do not remove the instrument cover in explosive atmospheres when the circuit
is alive.
•
Before connecting a HART communicator in an explosive atmosphere, make
sure the instruments in the loop are installed in accordance with intrinsically
safe or non-incendive field wiring practices.
•
Both transmitter covers must be fully engaged to meet explosion proof
requirements.
Electrical shock could cause death or serious injury. If the sensor is installed in a
high-voltage environment and a fault or installation error occurs, high voltage may
be present on transmitter leads and terminals.
•
Use extreme caution when making contact with the leads and terminals.
