Gas Data GFM 436, Техническое руководство пользователя, Страница: 47 / 71

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To change the batteries, remove the two screws on the rear of the instrument, then lift the battery cover
and remove the battery pack from the recess.
Place the new battery pack in the recess, making sure that the polarity is correct, replace the battery cover
and secure with the two screws.
IMPORTANT: Always replace the battery pack in dry, clean conditions, preferably indoors.
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If you replace the batteries in the field, you can, of course, recharge them later when you return to base.
Warning
Warning
NEVER allow dust or moisture to enter the battery compartment.
NEVER attempt to replace batteries in a potentially explosive
atmosphere.