Emerson Rosemount 644 with HART Protocol User Manual

v
Reference Manual
00809-0200-4728, Rev SA
Title Page
July 2018
Title Page
Rosemount
™
644 Temperature
Transmitter
Railmount Headmount Headmount
Rosemount 644 Hardware Revision 31 2 2
Device Revision 7 8 9
HART
®
Revision 5 5 7
Read this manual before working with the product. For personal and system safety, and for optimum
product performance, make sure to thoroughly understand the contents before installing, using, or
maintaining this product.
The United States has two toll-free assistance numbers and one international number.
Customer Central
1-800-999-9307 (7:00 a.m. to 7:00 p.m. CST)
National Response Center
1-800-654-7768 (24 hours a day)
Equipment service needs
International
1-(952)-906-8888
The products described in this document are NOT designed for nuclear-qualified applications.
Using non-nuclear qualified products in applications that require nuclear-qualified hardware or
products may cause inaccurate readings.
For information on Rosemount nuclear-qualified products, contact a Emerson
™
Sales Representative.
Failure to follow these installation guidelines could result in death or serious injury.
Make sure only qualified personnel perform the installation.
Explosions could result in death or serious injury.
 Do not remove the connection head cover in explosive atmospheres when the circuit is live.
 Before connecting HART in an explosive atmosphere, make sure the instruments in the loop
are installed in accordance with intrinsically safe or non-incendive field wiring practices.
 Verify the operating atmosphere of the transmitter is consistent with the appropriate
hazardous locations certifications.
 All connection head covers must be fully engaged to meet explosion-proof requirements.
Process leaks could result in death or serious injury.
 Do not remove the thermowell while in operation.
 Install and tighten thermowells and sensors before applying pressure.
Electrical shock could cause death or serious injury.
Use extreme caution when making contact with the leads and terminals.

Emerson Rosemount 644 with HART Protocol Specifications

General

Brand	Emerson
Model	Rosemount 644 with HART Protocol
Category	Transmitter
Language	English