Emerson Rosemount 644 with HART Protocol User Manual

45
Reference Manual
00809-0200-4728, Rev SA
Installation
July 2018
Installation
3.4.1 Set the alarm switch
Make certain that the alarm switch is set to the desired position before putting the device into operation
to ensure correct function in the instance of a failure.
Without an LCD display
1. Set the loop to manual (if applicable) and disconnect the power.
2. Remove the housing cover.
3. Set the physical hardware alarm switch to the desired position. H indicates High, L indicates Low.
Then reattach the housing cover. See Figure 3-3 below for alarm switch location.
4. Apply power and set the loop to automatic control.
Figure 3-3. Failure Switch Location
A. Alarm switch
Note
If using an LCD Display or LOI, first remove the display by detaching it from the top of the device, set the
switch to the desired position and reattach the display. See Figure 3-4 for proper display orientation.
Figure 3-4. Display Connection
Rosemount 644 Transmitter Rosemount 644 Field Mount
Rosemount 644 Transmitter Rosemount 644 Field Mount
A

Emerson Rosemount 644 with HART Protocol Specifications

General

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