Teledyne 7600 - Infrared gas analyzer - operating manual - Manual (Page 93)

Infrared Gas Analyzer Maintenance
Teledyne Analytical Instruments 93
Maintenance
4.1 Routine Maintenance
Aside from normal cleaning of the instrument and making sure
connections are tight and secure, the following maintenance items
should be carried out on a daily basis.
1. Zero and Span Calibration:
Perform a zero calibration. For the calibration
procedures, refer to Section 3.7.1 Zero Calibration.
Then, perform span calibration. For the calibration
procedures, refer to Section 3.7.2 Span Calibration.
2. Flowrate Check:
Sampling and purge gas flowrates are as follows:
Sampling gas flow: 0.5L/min 0.2 L/min
Purge gas flow:
About 1 L/min
Check and adjust if necessary every day.
4.2 Daily Check and Maintenance Procedures
Table 4.1 Troubleshooting and Maintenance
Item to be
checked
Phenomena Cause Remedy
Display value Display values are
low.
Display values are
high.
(1) Dust is
mixed in
sampling cell. (1) Clean the
sampling cell.
Check
sampling
system
especially gas
filter.