Emerson Process Management 3051N 사용자 설명서

Reference Manual

00809-0100-4808, Rev CA

June 2008

Rosemount 3051N

6-4

4. Insert the interconnection header in the ten-pin socket exposed by 

removal of the jumpers.

5. Remove the two captive screws from the electronics module. To do so, 

loosen the screws to release the module, then pull out the screws until 
they are stopped by the captive thread inside of the circuit board 
standoffs. Continue loosening the screws and remove them.

6. If necessary, rotate the electronics housing up to 180 degrees (left or 

right) to improve field access or to better view the LCD meter. To rotate 
the housing:

a. Loosen the housing rotation set screw using a 

9

/

64

-in.

hex wrench.

b. Turn the housing up to 180 degrees to the left or right of its original 

(as shipped) position. 

c. Retighten the housing rotation set screw.

7. Decide which direction to orient the meter. Insert the long meter screws 

into the two holes on the meter assembly that coincide with the holes on 
the electronics module. You can install the meter in 90-degree 
increments for easy viewing. Position one of the four connectors on the 
back of the meter assembly to accept the interconnection header.

8. Attach the meter assembly to the electronics module by threading the 

screws into the captive threads and attaching the meter assembly to the 
interconnection pins. Tighten the screws to secure the meter assembly 
and electronics board in place.

9. Attach and tighten the extended cover. Transmitter covers must be fully 

engaged to meet explosion proof requirements and to achieve the proper 
environmental seal.

Note the following LCD temperature limits:

: 0 to 175 °F (–20 to 80 °C)

: 0 to 185 °F (–40 to 85 °C)

NOTE
Electronics are able to verify alarm current levels. An alarm level test is 
recommended before returning the transmitter to service (see “Alarm Level 
Verification” in Section 2).