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Reference Manual
00809-0400-4101, Rev BA
Electrical Installations
January 2018
Electrical Installations
Figure 4-2. 4–20 mA Electronics Board
4.4.1
Setting security switch
The security switch is used to prevent changes to the transmitter configuration data. If the security
switch is set to the locked location (
), any transmitter configuration requests sent via HART, LOI, or
local configuration buttons will be rejected by the transmitter and the transmitter configuration data will
not be modified. Reference
for the location of the security switch. Follow the steps below to
enable the security switch.
1. Set loop to manual and remove power.
2. Remove transmitter housing cover.
3. Use a small screwdriver to slide the switch to the lock (
) position.
4. Replace transmitter housing cover; cover must be fully engaged to comply with explosion proof
requirements.
4.4.2
HART lock
The HART Lock prevents changes to the transmitter configuration from all sources; all changes
requested via HART, LOI, and local configuration buttons will be rejected. The HART Lock can only be set
via HART communication, and is only available in HART Revision 7 mode. The HART Lock can be enabled
or disabled with a Field Communicator or AMS Device Manager.
Without LCD display meter
With LCD display /LOI display
A. Alarm
B. Security
A
B
Summary of Contents for Rosemount 2051G
Page 2: ......
Page 10: ...2 Reference Manual 00809 0400 4101 Rev BA Introduction January 2018 Introduction ...
Page 34: ...26 Reference Manual 00809 0300 4410 Rev BA Configuration January 2018 Configuration ...
Page 72: ...64 Reference Manual 00809 0400 4101 Rev BA Troubleshooting January 2018 Troubleshooting ...
Page 89: ......