Maintenance, 1 daily check, 2daily check and maintenance procedures – Yokogawa IR400 User Manual
Page 82: 2 daily check and maintenance procedures
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IM 11G02N01-01E
7.1 Daily check
(1) Zero calibration and span calibration
1.
Perform zero calibration. For the calibration procedures, refer to “Item 6.9.1 Zero calibra-
tion”.
2.
Then, perform span calibration. For the calibration procedures, refer to “Item 6.9.2 Span
calibration”.
3.
Zero calibration and span calibration should be carried out once a week, as required.
(2) Flow rate check
1.
Sampling gas flow and purge gas flow are as follows:
•
Sampling gas flow:
0.5
±
0.2L/min
•
Purge gas flow:
About 1L/min
2.
Check and maintenance should be carried out every day, as required.
7.2 Daily check and maintenance procedures
Table 7.1 Maintenance and check table
7. MAINTENANCE