Chapter 1 Introduction; Using This Manual - Emerson Rosemount 644 Reference Manual

Reference Manual
00809-0200-4728
1 Introduction
1.1

Using this manual

This manual is designed to assist in the installation, operation, and maintenance of
Rosemount 644 Head Mount, Field Mount, and Rail Mount Transmitters with the HART
protocol.
Configuration
HART Transmitter. The information explains how to configure software functions and
many configuration parameters on an Asset Management System, a Field Communicator,
and the Local Operator Interface display option.
Hardware Installation
Electrical Installation
transmitter.
Operation and Maintenance
the transmitter.
Troubleshooting
operating problems.
Safety Instrumented Systems (SIS) Certification
configuration, operation and maintenance, and inspection information for Safety
Instrumented Systems as it pertains to the Rosemount 644 Head Mount and Field Mount
Temperature Transmitter.
Reference Data
and product certification.
Field Communicator Menu Trees and Fast Keys
and Field Communicator Fast Keys.
Local Operator Interface (LOI)
the LOI menu tree and LOI extended menu tree.
1.1.1 Transmitter overview
The Rosemount 644 Head Mount and Field Mount Temperature Transmitters support the
following features:
• HART
• Accepts either one or two inputs from a wide variety of sensor types (2-, 3-, and 4-wire
RTD, thermocouple, mV and ohm)
• A compact transmitter size with electronics completely encapsulated in protective
silicone and enclosed in a plastic housing ensuring long-term transmitter reliability
• Optional Safety Certification Option (IEC 61508 SIL 2)
• Optional enhanced accuracy and stability performance
• Optional LCD display with extended temperature ratings of -40 to 185 °F (-40 to 85 °C)
Emerson.com/Rosemount
provides instruction the commissioning and operating the Rosemount 644
contains mechanical installation instructions for the transmitter.
contains electrical installation instructions and considerations for the
contains common operation and maintenance techniques for
provides troubleshooting techniques for the most common transmitter
supplies procedure on how to get the specifications, ordering information,
contains instructions for number entry, text entry, as well as
®
configuration with Selectable HART revision capability (Revisions 5 or 7)
provides identification, installation,
contains Field Communicator menu trees
Introduction
March 2021
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