Emerson Process Management OXYMITTER 4000 - Manual (Page 124)

Instruction Manual
IB-106-340C Rev. 4.1
July 2004
9-6 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management
Hazardous Area Oxymitter 4000
4. Touch the Enter arrow to start the Gas
2 flow. The timer is activated and the
LOI displays:
Flow Gas 2xxxxs
Read Gas 2xxxxs
Done Gas 2
Stop Gas
Hit E when ready
5. Remove the second calibration gas
and cap off the calibration gas port.
Then, touch the Enter arrow to indicate
completion. The timer is activated and
the LOI displays:
Purgexxxxs
The default purge time is three min-
utes. When the gas purge timer times
out, the Oxymitter 4000 begins to read
the process O
2
.
b. Abort Calibration
Exits the calibration. After calibration gases
are removed, and the purge times out, the
instrument goes back to normal operational
mode.
c. Cal Constants – Results of the
Calibration
1. Current calibration – If the calibration
passed these values will be updated.
Log these values onto the calibration
log sheet supplied. If the process has
high levels of particulate, the response
back to the process after cal gas is
also removed.
2. Previous Calibration – Values from the
prior good calibration.
3. Failed Calibration – Bad calibration
values are not loaded into the elec-
tronics.
d. Calibration Status
1. Calibration Step – The current step in
an active calibration procedure.
2. Calibration Time – Time until the next
scheduled calibration.
3. Next O2 Cal – Time until the next O
2
calibration, if different than the next
scheduled calibration.