1.4 Safety information
6
780/781 pH/Ion Meter, Manual
1.4 Safety information
This instrument should only be used in accordance with the infor-
mation given in this Manual.
1.4.1 Electrical safety
Please observe the following guidelines:
• Only qualified Metrohm technicians should carry out service work
on electronic components.
• Do not open the pH/Ion Meter housing. This could destroy the
pH/Ion Meter. Inside the housing there are no components that the
user can service or exchange.
Electrical safety when handling the 780 pH Meter and the 781 pH/Ion
Meter is guaranteed within the framework of the IEC 61010 Standard.
The following points must be observed:
Please make sure that the external power supply is always kept dry.
Protect it against direct liquid contact .
Electronic components are sensitive to electrostatic charges and can
be destroyed by a discharge. Always switch off the pH/Ion Meter be-
fore making or breaking electrical connections on the rear panel of the
instrument.
1.4.2 General handling rules
Handling solutions
When worki
ng with water or other solutions in the immediate vicinity of
the pH/Ion Meter please avoid excessive liquid splashes on the in-
strument housing or power supply. Any such splashes must be re-
moved as quickly as possible in order to prevent the liquid from enter-
ing the instrument or the power supply.
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