Emerson Process Management OXYMITTER 4000 - Manual (Page 79)

Instruction Manual
IB-106-340C Rev. 4.1
July 2004
Rosemount Analytical Inc. A Division of Emerson Process Management Startup and Operation with LOI 6-1
Hazardous Area Oxymitter 4000
SECTION 6
STARTUP AND OPERATION
OF HAZARDOUS AREA OXYMITTER 4000 WITH LOI
6-1 POWER UP
a. Startup Display
When power is applied to the probe, the cell
heater turns on. It takes approximately one
half hour for the cell to heat to operating
temperature. This condition is indicated by a
“warm up” display on the LOI (Figure 6-1).
This message will continue to display until
the cell is up to operating temperature.
b. Operating Display
The normal operating display is the % O
2
concentration. The “normal” display is
shown in Figure 6-2.
c. Error
If there is an error condition at startup, an
alarm message will be displayed. Refer to
Section 8, TROUBLESHOOTING, to deter-
mine the cause of the error. Clear the error,
cycle power, and the % O
2
display should
return.
d. LOI
The Local Operator Interface can be used to
change the software and alarm settings, to
adjust the high and low gas settings, and to
initiate the calibration sequence. Refer to
the LOI menu (Figure 6-4).
e. Reference Air
Ensure the reference air, if used, is set to
56.6 l/hr (2 scfh).
6-2 START UP OXYMITTER 4000
CALIBRATION
Refer to Section 9, MAINTENANCE AND
SERVICE, for calibration instructions.
37260035
O2: 0.00% LK
warm up 367dgC
Figure 6-1. Startup Display
37260036
O2: 2.59% LK
normal
Figure 6-2. Normal Display
6