Hach HQ440d, Руководство пользователя

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Installation
C A U T I O N
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Connect to AC power
D A N G E R
Electrocution Hazard. AC power outlets in wet or potentially wet locations MUST ALWAYS be provided
with a Ground Fault Circuit Interrupting (GFCI/GFI) circuit breaker. The AC-DC power adapter for this
product is not sealed and must not be used on wet benches or in wet locations without GFCI protection.
The meter can be powered by AC power with the universal power adapter.
1. Set the meter to OFF.
2. Connect the AC/DC power supply to the meter. Refer to Figure 3 .
3. Connect the AC/DC power supply to an AC receptacle.
4. Set the meter to ON.
Figure 3 AC power connection
Install the batteries
W A R N I N G
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.
N O T I C E
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.
N O T I C E
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.
N O T I C E
To avoid potential damage to the meter from battery leakage, remove the meter batteries prior to extended
periods of non-use.
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