3-28 | Model 888 ATEX IECEx Tail Gas Analyzer
2. When the Calibration Timer times out, a Calibration Cycle starts im-
mediately. The calibration cycle begins at Period 5 in which the zero
offset values are recorded. It then tracks the zero values through
Period 6, steps to Period 7 where the photo span values are verified
or adjusted, tracks the span values through Period 8, and returns to
Period 3 to resume the normal sampling cycle 3 → 4.
3. When the Calibration Timer times out and the following occurs, then a
Steam Blow Back Cycle is started instead of a Calibration Cycle.
- The Zero Period parameter, which defines the number of zero or
calibration cycles between steam blowback cycles, is not equal to
zero; and
- The Zero Period number of zero or calibration cycles have elapsed
since the last steam blowback.
4. Steam Blow Back Cycle.
- Period 9 - flushes the system with air
- Period 10 - Steam is flushed back through the demister and probe
- Period 11 flushes the system with air again before beginning the
calibration cycle by jumping to Period 5.
To Next Page
Loading...
Need help?
General
