189
Reference Manual
00809-0100-4021, Rev GC
Section 7: Prior Use (PU) Safety Instrumented System
April 2014
Prior use (PU) safety instrumented system
Without an LCD display
1.
If the transmitter is installed, set the loop to manual.
2.
Remove the housing cover on the electronics side of the transmitter. Do not remove
the transmitter cover in explosive atmospheres with a live circuit.
3.
Set the switches to the desired position (see
).
4.
Replace the transmitter cover. Both covers must be fully engaged to meet
explosion-proof requirements.
5.
Set the loop to automatic control.
With an LCD display
1.
If the transmitter is installed, set the loop to manual.
2.
Remove the housing cover on the electronics side of the transmitter. Do not remove
the transmitter cover in explosive atmospheres with a live circuit.
3.
Remove the housing cover, then unscrew the LCD display screws and gently slide the
meter straight off.
4.
Set the switches to the desired position. The simulate switch is default set to the “on”
position (see
).
5.
Gently slide the LCD display back into place, making sure to line up the 10 pin
connection.
6.
Secure the LCD display with replacing the LCD display screws.
7.
Replace the transmitter cover. Both covers must be fully engaged to meet
explosion-proof requirements.
8.
Set the loop to automatic control.
Figure 7-1. Transmitter Jumper Locations
A. Diagram of switches
B. Fail mode and security switch
C. LCD display connector
Switch location
LCD display faceplate
Failure Mode
Security
A
B
C
Содержание Rosemount
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