Emerson 3081FG - Manual (Page 37)

Instruction Manual
IB-106-3081 Rev. 1.5
September 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Startup and Operation 3-7
Model 3081FG
%
mA
O CONCENTRATION
2
INDICATOR
FAULT VALUE
26020010
Figure 3-9. FAULT VAL
c. FAULT VAL
Refer to Figure 3-9. Use this screen to set
the value that the 4-20 mA output will drive
to and display during a fault condition. Press
ENTER to begin editing. Use the arrow keys
to enter a fault value. The fault value can be
between 3.8 and 24 mA. Then, press EN-
TER to accept the value. Pressing NEXT
displays the UPPER RANGE VAL screen.
Refer to Section 6, TROUBLESHOOTING,
for the actual fault conditions.
d. UPPER RANGE VAL
Refer to Figure 3-10. Use this screen to set
the value of the upper range limit. This
value is the maximum limit of the O
2
con-
centration measurement and is used to
scale the 4-20 mA output. Press ENTER to
begin editing. Use the arrow keys to select
and change the value. The upper range
value can be between 0 and 25%. Then,
press ENTER to accept the value. Pressing
NEXT displays the CELL T HI screen.
e. CELL T HI
Refer to Figure 3-11. Use this screen to set
the value of the upper cell temperature fault
condition. This value is the maximum al-
lowed cell temperature before a fault condi-
tion is indicated. Press ENTER to begin
editing. Use the arrow keys to select and
change the value. The value must be be-
tween 550° and 1600°C. Press ENTER to
accept the value. Pressing NEXT displays
the RESET MAX CELL T screen.
%
%
O CONCENTRATION
2
UPPER
RANGE LIMIT
26020011
Figure 3-10. UPPER RANGE VAL
%
O CONCENTRATION
2
26020012
UPPER CELL
TEMPERATURE
FAULT VALUE
Figure 3-11. CELL T HI
3