Emerson Rosemount Oxymitter 4000, Reference Manual, Page: 150 / 198

9.2.1 Calibration record
Probe serial number:
Probe tag number:
Probe location:
Date placed into service:
Note
Response
initial
: When the second calibration gas is turned off, note the number of seconds
required for the O
2
value to begin migrating back to the process value.
Response
final
: When the second calibration gas is turned off, note the number of seconds
required for the O
2
value to settle out at the process value.
9.2.2 Calibrate with keypad
To calibrate, apply two calibration gases with known O
2
concentrations to the transmitter.
The tranamitter calculates slope and constant values from the two calibration gases to
determine if it is correctly measuring the net concentration of O
2
in the industrial process.
See Calibration record to track transmitter performance.
Before calibrating, verify that the calibration gas parameters are correct by setting the gas
concentrations used when calibrating the unit and by setting the calibration gas flow
Maintenance and service Reference Manual
October 2019 00809-0100-4340
150 Emerson.com/Rosemount