Emerson Rosemount 644 HART, Reference Manual

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5
Reference Manual
00809-0100-4728, Rev MB
Introduction
July 2016
Introduction
Note
If a hazardous substance is identified, a Material Safety Data Sheet (MSDS), required by law to be
available to people exposed to specific hazardous substances, must be included with the returned
materials.
1.5 Transmitter security
1.5.1 Available security options
There are three security methods to utilize with the Rosemount 644 Transmitter.

Software Security Switch (Write Protect)

HART Lock

LOI Password
The Write Protect feature allows you to protect the transmitter data from accidental or unwarranted
configuration changes. To enable the write protect feature, perform the following procedures.
Configuring Write Protect, HART Lock and LOI Password with a Field
Communicator
Configuring Write Protect, HART Lock and LOI Password with AMS
™
Device Manager
Right click on the device and select the Configure menu.
1. In the left navigation pane choose Manual Setup then chose the Security tab .
2. All three parameters can be configured from this screen.
3. Click Apply when complete.
From the HOME screen, enter the Fast Key sequence
Device Dashboard Fast Keys-Write Protect
2, 2, 9, 1
Device Dashboard Fast Keys-HART Lock
2, 2, 9, 2
Device Dashboard Fast Keys- LOI Password
2, 2, 9, 3