Wise P680, Руководство пользователя

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a MICRO S/W built-in. Therefore, please use it with a tolerance in consideration of
inrush current etc. within the rated current marked on this product.
9) The contact resistance of micro switch increases little by little, as time passes.
Especially, in case of small load, contact resistance increases in a short period of time
because "SiO
2"
accompanied with contact operation is accumulated at the contact part
in the environment where "Si" is contained. Therefore, please carry out ventilation or
use it in the clean environment. In particular, in case of using it for inputting sequence
for control, a contact fault may occur for this reason. Therefore, please use bufferrelay
for AC 110/220V between contact and sequence.
10) Please open and close the cover surely after cutting off power, in case of carrying out
work in order to repair or check the pressure gauge.