Install The Batteries - Hach HQ440d Manual Básico Del Usuario

Install the batteries

Explosion hazard. Incorrect battery installation can cause the release of explosive gases. Be sure that the
batteries are of the same approved chemical type and are inserted in the correct orientation. Do not mix new and
used batteries.
The battery compartment is not waterproof. If the battery compartment becomes wet, remove and dry the
batteries and dry the interior of the compartment. Check the battery contacts for corrosion and clean them if
necessary.
When using nickel metal hydride (NiMH) batteries, the battery icon will not indicate a full charge after freshly
charged batteries have been inserted (NiMH batteries are 1.2 V versus 1.5 V for alkaline batteries). Even though
the icon does not indicate complete charge, 2300 mAH NiMH batteries will achieve 90% of instrument operation
lifetime (before recharge) versus new alkaline batteries.
To avoid potential damage to the meter from battery leakage, remove the meter batteries prior to extended
periods of non-use.
The meter can be powered with AA alkaline or rechargeable NiMH batteries. To conserve battery life,
the meter will power off after 5 minutes of inactivity. This time can be changed in the Display Options
menu.
For battery installation refer to
1. Loosen the three battery cover screws and remove the battery cover.
Note: Do not remove the screws from the battery cover.
2. Install 4 AA alkaline or 4 AA nickel metal hydride (NiMH) batteries. Make sure that the batteries
are installed in the correct polarity.
3. Replace the battery cover.
Note: Do not over-tighten the screws.
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