Emerson Rosemount Oxymitter 4000 Instruction Manual page 120

Oxymitter 4000
Figure 9-2. Inside Right Cover
9-4
2. Verify the calibration gas parameters are correct per "Calibration with
Keypad".
3. If performing a manual calibration with the CALIBRATION
RECOMMENDED LED off and the CAL LED off, start at step a.
4. If performing a manual calibration with the CALIBRATION
RECOMMENDED LED on and the CAL LED on, start at step b.
a. Push the CAL key. The CALIBRATION RECOMMENDED LED will
come on and the CAL LED will be on solid. If a multimeter is
attached across TP5 and TP6, the reading will display the
percentage of oxygen seen by the cell.
b. Push the CAL key. The CALIBRATION RECOMMENDED LED will
turn off and the CAL LED will flash continuously. The Oxymitter 4000
can be configured so that the 4-20 mA signal will hold the last value.
The default condition is for the output to track. A flashing LED
indicates that the Oxymitter 4000 is ready to accept the first
calibration gas.
c. Apply the first calibration gas. (Electronics will abort the calibration if
step 4 is not done within 30 minutes).
d. Push the CAL key; the CAL LED will be on solid. A timer is activated
to allow the calibration gas adequate time to flow (default time of five
minutes). When the timer times out, the Oxymitter 4000 has taken
the readings using the first calibration gas and the CAL LED will flash
continuously. The flashing indicates the Oxymitter 4000 is ready to
take readings using the second calibration gas.
Instruction Manual
IM-106-340, Rev. 4.3
July 2017