Metrohm 812 Valve Unit - Manual (Page 9)

1 Introduction
812 Valve Unit
6
1.4 Safety notes
While electrical safety in the handling of the 812 Valve Unit is assured in
the context of the specifications IEC 61010-1 (protection class 1), the
following points should be noted:
• Mains connection
The mains connection must be effected in accordance with the
instructions in section 2.2.
• Opening the instrument
Inside the instrument there are no parts which must be set or adjusted
by the user.
If the 812 Valve Unit is connected to the power supply, the instrument
must not be opened nor must parts be removed from it. Hence,
before opening the instrument, always ensure that the power supply
unit is disconnected from connection 7!
• Protection against static charges
Electronic components are sensitive to static charging and can be
destroyed by discharges. Before you touch any of the components
inside the 812 Valve Unit, you should earth yourself and any tools you
are using by touching an earthed object (e.g. housing of the instru-
ment or a radiator) to eliminate any static charges which exist.