2 Installation
780/781 pH/Ion Meter, Manual
17
2.5 Mains connection
The pH/Ion Meter has an external power supply (6.2153.000) providing
12V (DC). This is connected to 12V mains connection
.
One of the following cables is supplied with the instrument
• 6.2154.000 Mains cable 2 Pol (C7) – EU (XVI)
• 6.2154.010 Mains cable 2 Pol (C7) – US (N1/15)
• 6.2154.020 Mains cable 2 Pol (C7) – GB (BS89/3)
• 6.2154.030 Mains cable 2 Pol (C7) – AUS (SAA/2)
and is connected to the external power supply.
Please mak
e sure that the power supply is always kept dry. Protect it
against direct liquid contact .
2.6 Switch on
After the selected accessories have been connected switch on the
pH/Ion Meter with the
key (see also Section 4.3). The in-
strument will start in the last operating mode to have been used for
measuring pH, temperature, potential or concentration (781 only).
During the switch-on process an instrument checking routine is carried
out automatically. If an error message is displayed here ('
Err x') then
please contact your local Metrohm agency.
ON/ OFF
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