18
４－4.
Recommendable spare parts list
No.
Description
Inspection
interval
Replacement
interval
Q’ty/set
1
Sealing packing
(Non-gas contact part)
1 year
7～8 years
1 set
2
Sealing packing
(Gas contact part)
1 year
2～4 years
1set
3
Interferometric sensor
1 year
5～8 years
1 pce
4
Circuit board
(Display)
-
5～6 years
1 pce
5
Circuit board
(MAIN)
-
7～8 years
1 pce
6
Fuse(2A)
-
8 years
2 pcs
7
Flowmeter ass’y
(Including low flow sensor)
1 year
7～8 years
2 sets
＊１． The replacement interval will change depending on operating conditions and it
does not mean the guarantee period. Replacement interval may change from
inspection results.
＊２． Material of sealing packing to be used for gas contact part will change according
to the kind of measuring gas.
＊３． Replacement of printed circuit board is required due to the deterioration of
capacitors, etc.
＊４． For assembled unit and circuit board, use pre-adjusted one.
＊５． The flowmeter ass’y includes the low flow sensor.
