6.3
Recommended Part Replacement
The life and replacement period for expendable items varies depending on the conditions of use. Refer
to the table below as a general guideline.
For part replacement and purchase, contact your nearest YOKOGAWA dealer.
Part Name
Current input relay
(only for the WT310E)
Backup battery
(lithium)
IM WT310E-02EN
Recommended Replacement Interval
A relay for switching the current input circuit. The relay's specifications indicated below.
• Electrical life: Approximately 50,000 operations (at the rated capacity)
• Mechanical life: Approximately 1,000,000 operations
3 years
1
2
3
4
5
6
7
App
Index
6-3