Rosemount Oxymitter 4000 Hazardous Area In-Situ Oxygen Transmitter
Rosemount Oxymitter 4000 mainly uses the model of OXT4A Oxymitter 4000 direct-insert zirconia oxygen analyzer transmitter.Rosemount Oxymitter 4000 measures the electromotive force of the oxygen concentration cell generated due to the different oxygen concentrations on both sides of the zirconia probe. Based on the Nernst equation, it calculates the oxygen content in the measured gas, thus achieving precise measurement of the oxygen content.
Net O2 range
Variable 0–10% to 0–40%
(Xi electronics offer 0–50% O2 range)
Accuracy in oxidizing conditions
±0.75% of reading or 0.05% O2, whichever is greater
Lowest detectable limit
0.02% O2
Process temperature effect
Less than 0.05% O2 from 212 to 1292 °F (100 to 700 °C)
System speed of response to calibration gas
Initial response in less than 3 seconds, T90 in less than 8 seconds. Response to process gas changes will vary,
depending on process gas velocity and particulate loading of the diffuser.
Calibration validity
Presentation of calibration gases matches the normal process to within ±0.02% O2.
Accuracy in reducing conditions
±0.10% of reading, or 0.1% O2, whichever is greater
System response in reducing conditions
Going from oxidizing to reducing: T90 in 120 sec.
Going from reducing to oxidizing: T90 in 30 sec.
Code Description
OXT4C, In-Situ Oxygen Transmitter – explo-proof – HART Smart (Oxymitter 4000)
OXT4CDR, Direct replacement probe
OXT4CNF, Oxymitter 4000 In-Situ Oxygen Transmitter
OXT4CDRNF, Oxymitter DR In-Situ Oxygen Transmitter, optional Xi Advanced Electronics may be used safe area only.
Xi, O2 Advanced Electronics
XSO2CAL, O2 autocalibration accessories - apply to Oxymitter or Xi electronics. General purpose only.