Example of auto calibration time chart for | ||||||||
Auto calibration start time |
|
|
|
|
|
| ||
Under |
|
| Under auto calibration |
|
|
| ||
measurement |
|
|
|
|
| |||
|
|
|
|
|
|
|
| |
| Zero | Span | Span | Zero | Span | Span | Span | Substi- |
| gas | gas 1 | gas 3 | gas | gas 1 | gas 2 | gas 3 | tution |
• Gas flow time |
| CO | O2 |
| NO | SO2 | O2 |
|
|
|
|
|
|
|
|
| |
Auto calibration | T | T | T | T | T | T | T | T |
gas flow time | ||||||||
|
|
|
|
| T: settable from 100 to 599 sec. (Note) | |||
Auto calibration cycle
Gases introduced:
• Sample gas
Zero gas
Span gas 1
CO
Span gas 1
NO
Span gas 2
SO2
Span gas 3
O2
• Indicator lamps
AUTO CAL.
Flickers
ZERO
Flickers
SPAN
CAL
Lights
HOLD
(at HOLD ON)
Auto calibration abnormality:
If an abnormality occurs during auto calibration, a contact signal for auto calibration abnormality will be output from the input/output terminals on the upper of the analyzer. The gas which incurred the abnormality will not be calibrated, and instead the next component will be calibrated.
Note: Usually, T is set at 360 sec. for measurement including SO2, and at 180 sec. for other measurements. For change of setting, refer to the separate instruction manual of infrared gas analyzer.
– 19 –