Fuji Electric ZSS-8 Series, Instruction Manual

Page: 102 / 119

- 92 -
INZ-TN8ZSS-E
7. MAINTENANCE
7.1 Maintenance list
To maintain the desired accuracy, we recommend you to perform periodical maintenance and inspection,
referring to Table 7
－
1.
Table 7
－
1
Maintenance cycle
6-month 1-year 3-year
Light axis adjustment ✓
Zero calibration ✓
Span calibration ✓
Replacement of O-ring and
packing ✓
LCD replacement ✓
7.2 Maintenance procedure
To operate the instrument properly and keep it in favorable operation status, it is essential to perform
maintenance and inspection periodically.
Note that the Table 7
－
2 provides the guideline for maintenance items and intervals, assuming standard gas,
operation, and installation environment. Only qualified personnel who have been trained by Fuji Electric
should perform maintenance works.
Do not extend the cycle of replacement parts.
Note that any troubles resulting from failure to replace parts or perform maintenance periodically are not in-
cluded in warranty.
Table 7
－
2
Maintenance cycle
Page
6 months 1 year
Control unit
Check that no error or alarm is dis-
played.

↓
Receiver/
transmitter unit Check that the mounting flange is se-
curely fixed to the stack and there is no
vibration.

↓
Receiver/
transmitter unit Zero calibration

P.42
↓
Receiver/
transmitter unit Span calibration

P.46
↓
Receiver/
transmitter unit Replacement of O-ring and packing

P.93
↓
Receiver/
transmitter unit Light axis adjustment

↓
Receiver/
transmitter unit Check of air purge flow rate
