Emerson 3081FG - Manual (Page 27)

Instruction Manual
IB-106-3081 Rev. 1.5
September 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-9
Model 3081FG
3. For correct viewing orientation, the dis-
play may be changed 90 degrees, us-
ing the following procedure:
(a) Refer to Figure 2-8. Loosen the
cover lock screw until the cover
lock is disengaged from the
knurled surface on the threaded
circuit end cap.
(b) Remove the circuit end cap.
(c) Remove the three screws retaining
the display board in place.
(d) Lift and rotate the display board 90
degrees either way.
(e) Reposition the display board on the
standoffs. Install and tighten all
three screws.
SCREW
HOUSING
DISPLAY
BOARD
CIRCUIT END
CAP
90 O
90 O
26020061
Figure 2-8. Display Positioning Assembly
(f) Install the circuit end cap and
tighten the cover lock screw to se-
cure the cover lock in place.
2-3 ELECTRICAL INSTALLATION
All wiring must conform to local and national
codes.
For intrinsically safe applications, re-
fer to drawing 1400184, page 10-2 of
this Instruction Bulletin.
Disconnect and lock out power before
connecting the unit to the power
supply.
Install all protective equipment covers
and safety ground leads after installa-
tion. Failure to install covers and
ground leads could result in serious
injury or death.
To meet the Safety Requirements of
IEC 1010 (EC requirement), and ensure
safe operation of this equipment, con-
nection to the main electrical power
supply must be made through a circuit
breaker (min 10 A) which will discon-
nect all current-carrying conductors
during a fault situation. This circuit
breaker should also include a me-
chanically operated isolating switch. If
not, then another external means of
disconnecting the supply from the
equipment should be located close by.
Circuit breakers or switches must
comply with a recognized standard
such as IEC 947.
a. General
The power supply and signal wiring should
be shielded. Also, make sure the signal
wiring is grounded at the Model 3081
Transmitter end only. Do not ground the
signal loop at more than one point. Twisted
2