Agilent Technologies 1290 Infinity User Manual page 8

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General Information
Safety Information
In any case disconnect the power cord(s) from the power supply or from the
different power supplies if optional devices are installed before attempting
any type of maintenance.
Capacitors inside the instrument may still be charged even if the instrument is
turned off.
To avoid damaging electrical parts, do not disconnect an electrical assembly
while power is applied to the LC Injector HTC/HTS system. Once the power is
turned off, wait approximately 30 seconds before you disconnect an assembly.
The instrument includes a number of integrated circuits. These circuits may
be damaged if exposed to excessive line voltage fluctuations and/or power
surges.
Never try to repair or replace any components of the instrument that is not
described in this manual without the assistance of a Agilent Technologies
representative.
There are no operator-serviceable or replaceable parts inside the power
supply(ies) or in the LC Injector HTC/HTS System. If a power supply is not
functioning, contact a Agilent Technologies representative.
The power supply for the LC Injector HTC/HTS Instrument has the symbols
1/0 on the label for the power switch to switch ON/OFF.
Any additional power supply for other devices like, Cooled Stack or a Valve
Module shows the symbols as shown below on the label for the power switch:
The symbols shall warn the user that in a emergency case more than one
power supply has to be turned OFF or more than one power cord has to be
pulled from power supply or from the wall outlet to shut down the complete
LC Injector HTC/HTS System.
8 Agilent 1290 Infinity LC Injectors HTC/HTS User Manual