Emerson Rosemount 2051G - Local Operating Interface (LOI);LCD Display; Rotating LCD;LOI Display; Configuring Transmitter Security

36
Reference Manual
00809-0400-4101, Rev BA
Electrical Installations
January 2018
Electrical Installations
4.3 Local Operating Interface (LOI)/LCD display
Transmitters ordered with the LCD display option (M5) or LOI option (M4) are shipped with the display
installed. Installing the display on an existing transmitter requires a small instrument screwdriver.
Carefully align the desired display connector with the electronics board connector. If connectors don't
align, the display and electronics board are not compatible.
Figure 4-1. LOI Display Assembly
A. LCD/LOI display
B. Extended cover
C. Captive screws
4.3.1 Rotating LCD/LOI display
1. Secure the loop to manual control and remove power to transmitter.
2. Remove transmitter housing cover.
3. Remove screws form the LCD/LOI display and rotate to desired orientation.
a. Insert 10-pin connector into the display board for the correct orientation. Carefully align pins for
insertion into the output board.
4. Re-insert screws.
5. Reattach transmitter housing cover; cover must be fully engaged to comply with explosion proof
requirements.
6. Re-attach power and return loop to automatic control.
4.4 Configuring transmitter security
There are four security methods with the Rosemount 2051G Transmitters:
 Security switch
 HART
®
Lock
 Configuration Buttons lock
 LOI password
A
C
C
B