Configure Security And Alarm - Emerson Rosemount 3051S Series Reference Manual

Reference Manual
00809-0100-4801, Rev EA
August 2010
Configure Security and
Alarm
1. Loosen the housing rotation set screw.
2. Turn the housing up to 180° to the left or right of its original (as shipped)
position.
NOTE
Do not rotate the housing more than 180 degrees without first performing a
disassembly procedure (see "Remove Interface Assembly" on page 5-4).
Over-rotation may sever the electrical connection between the sensor module
and the feature board.
3. Retighten the housing rotation set screw.
In addition to housing rotation, the optional LCD display can be rotated in
90-degree increments by squeezing the two tabs, pulling out, rotating and
snapping back into place.
NOTE
If LCD pins are inadvertently removed from the interface board, carefully
re-insert the pins before snapping the LCD display back into place.
NOTE
If alarm and security adjustments are not installed, the transmitter will operate
normally with the default alarm condition alarm high and the security off.
Configure Security (Write Protect)
Changes can be prevented to the transmitter configuration data with the write
protection PlantWeb housing switches and Junction Box housing jumpers.
Security is controlled by the security (write protect) switch/jumper located on
the interface assembly or terminal block. Position the switch/jumper in the
"ON" position to prevent accidental or deliberate change of configuration data.
If the transmitter write protection switch/jumper is in the "ON" position, the
transmitter will not accept any "writes" to its memory. Configuration changes,
such as digital trim and reranging, cannot take place when the transmitter
security is on.
To reposition the switches/jumpers, follow the procedure described
below.
1. Do not remove the transmitter covers in explosive atmospheres when
the circuit is live. If the transmitter is live, set the loop to manual and
remove power.
2. Remove the electronics compartment cover, opposite the field terminal
side on the PlantWeb housing or the terminal block cover on the Junction
Box housing. Do not remove the transmitter covers in explosive
atmospheres when the circuit is live.
3. Follow the procedure in Figure 2-7 on page 2-14 to reposition the
switches/jumpers as desired for the specific housing compartment.
4. Re-install the transmitter cover. Transmitter covers must be fully
engaged to meet explosion-proof requirements.
Rosemount 3051S Series
2-13