Mitsubishi Melsec-A Series User Manual page 153

9. MAINTENANCE
/MELSEC
9. MAINTENANCE
9.1 Unit Storage
The AD71 should be stored in the following environments:
(1) Ambient temperature 0 to 75OC.
(2) Ambient humidity 10 to 90%RH.
(3) No
condensation (e.9. due to sudden temperature changes).
(4)
No
direct exposure to sunlight.
(5) Free from excessive amounts of conductive powder
such as
dust, iron filings, oil mist, salt, or organic solvent.
A two hour "warming up" period should be allowed if the AD71 has
not been powered up for over 12 months.
(This is to allow the
electrolyte in electrolytic capacitor to stabilize.) The battery should
be replaced every 10 months if the unit is not powered up to main-
tain buffer memory data.
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I6 INAI 651014