Metrohm 914 pH / Conductometer - Manual (Page 15)

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1 Introduction
pH Meter/Conductometer
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1.4.2 Electrical safety
The electrical safety when working with the instrument is ensured as part
of the international standard IEC 61010.
WARNING
Only personnel qualified by Metrohm are authorized to carry out service
work on electronic components.
WARNING
Never open the housing of the instrument. The instrument could be
damaged by this. There is also a risk of serious injury if live components
are touched.
There are no parts inside the housing which can be serviced or replaced
by the user.
Supply voltage
WARNING
An incorrect mains voltage can damage the instrument.
Only operate this instrument with a mains voltage specified for it (see
rear panel of the instrument).
Battery / power supply unit
WARNING
Use the power supply unit only for its intended purpose. Inappropriate
use or use of non-approved or incompatible power supply units may
cause fires or explosions and result in the revocation of the license or
warranty.
If you think that the battery or the power supply unit has been dam-
aged, have it checked by a service center. Do not use damaged batter-
ies or power supply units.
Do not charge your instrument during thunderstorms.
Do not use the power supply unit outdoors.