PROGRAMMING OF MULTIRAE
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either case, the current calibration data will not be
changed.
Oxygen Sensor Calibration
The oxygen sensor calibration is slightly different from all
other sensors. The oxygen sensor measures a range from 0
to 30% of oxygen in the air. During “fresh” air calibration,
the oxygen sensor is calibrated to fixed 20.9% of oxygen.
During single sensor calibration, the user can supply a pure
nitrogen gas so that the oxygen sensor can be calibrated to
0% of oxygen. The user can also supply other span
concentration of the oxygen, e.g. 19.5%, to calibrate the
oxygen sensor. A question “0% oxygen?” will be asked.
Enter
[Y/+]
key if the pure nitrogen gas is used to calibrate
the oxygen sensor. Otherwise, enter
[N/-]
key to calibrate
oxygen sensor to other span oxygen value. During both
single or multiple sensor calibration, the oxygen sensor will
be calibrated to the span value defined in Section 4.4.4.
Note
: After a “0% oxygen” calibration, the user must
perform a fresh air calibration to ensure that the
oxygen sensor is calibrated correctly.
Calibration Time Stamp
When a single or multiple sensor calibration is performed, a
time stamp will be stored in the non-volatile memory. This
information will be included in the datalogging report.
Содержание MultiRAE PLUS PGM-50
Страница 165: ...APPENDIX A A 2 Change LEL VOC Gas Selection Enable Disable Sensor Change Dilution Ratio Change PID Lamp Type N Y Mode N...
Страница 169: ...APPENDIX B B 4 sensitivity to the gas is higher than that of isobutylene VOC or methane LEL...
Страница 176: ...APPENDIX C C 7...
Страница 183: ...APPENDIX G G 2 RAE Systems Service Department...