Yokogawa IR200 - Manual (Page 28)

4 - 1
IM 11G02M01-01E
4.1 Preparation for operation
(1) Check of gas sampling tube, exhaust tube and wiring
Check that the pipes are correctly connected to the gas sampling port and drain port. Check that
the analyzer is correctly wired as specified.
4.2 Warm-up operation and regular operation
(1) Operation procedure
1. Turn ON the power switch at the left of the front panel.
In one or two seconds, the measurement screen will appear at the front panel.
2. About 2 hour warm-up operation
About 2 hours are needed until the operating performance is stabilized. Warm-up operation
should be continued with the power ON.
3. Setting of various set values
Set required set values according to Chapter 6, “Setting and calibration”.
4. Zero and span calibration
Perform zero calibration and span calibration after warm-up operation.
See Chapter 6.9, “Calibration”.
5. Make moisture interference compensation adjustment (NO Analyzer and SO 2
Analyzer).
(See “6.8 Maintenance mode” and “7.4 Moisture interference compensation adjustment” for
details.)
Be sure to perform individual moisture interference compensation adjustment according to
the system in the case of NO Analyzer and SO
2 Analyzer. Otherwise measurement is
affected by moisture interference.
6. Introduction and measurement of measured gas
Start measurement by introducing measured gas into the analyzer.
Note) While in warm-up operation, the concentration reading may be beyond the
upper limit of the range (range-over) or below the lower limit
(range-under) .
But this is not an error.
4. OPERATION