Metrohm 757 VA Computrace - Manual (Page 55)

4.1 Electrical safety
757 VA Computrace – Hardware
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4 Safety
4.1 Electrical safety
While electrical safety in the handling of the 757 VA Computrace Stand is assured in
the context of the specifications IEC 61010-1 (protection class 1), the following
points should be noted:
• Mains connection
Setting mains connection must be effected in accordance with the
instructions in section 3.2.1.
• Opening the instrument
When the 757 VA Computrace Stand is connected to the power
supply, the instrument may not be opened nor parts of them be
removed, otherwise there is a danger of coming into contact with
components which are live. Before you open the 757 VA Computrace
Stand to change components or for maintenance or repair work,
always switch on the instrument by setting the mains switch 12 to the
ON position and then disconnect the mains cable from the mains
connection plug 13 of the 757 VA Computrace Stand !
• 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 757 VA Computrace Stand, you should earth yourself and
any tools you are using by touching an earthed object (e.g. green
housing of the instrument or a radiator) to eliminate any static charges
which exist.