Important Safety Warnings; Many Internal Parts Of The Msd Carry Dangerous Voltages - Agilent Technologies 5977C Series Operating Manual

1 Introduction

Important Safety Warnings

Important Safety Warnings

There are several important safety notices to always keep in mind when using
the MSD.
Many internal parts of the MSD carry
dangerous voltages
If the MSD is connected to a power source, even if the power switch is off,
potentially dangerous voltages exist on:
•
•
•
With the power switch on, potentially dangerous voltages also exist on:
•
•
•
All these parts are shielded by covers. With the covers in place, it should be
WAR N IN G
difficult to accidentally make contact with dangerous voltages. Unless
specifically instructed to, never remove a cover unless the detector, inlet, or
oven are turned off.
If the power cord insulation is frayed or worn, the cord must be replaced.
WAR N IN G
Contact your Agilent service representative.
If one of the primary fuses has failed, the MSD will already be off, but for safety,
switch off the MSD and unplug the power cord. It is not necessary to allow air
into the analyzer chamber.
Never replace the primary fuses while the MSD is connected to a power
WAR N IN G
source.
5977C GC/MSD Operating Manual
The wiring between the MSD power cord and the AC power supply
The AC power supply itself
The wiring from the AC power supply to the power switch
All electronics boards in the instrument
The internal wires and cables connected to these boards
The wires for any heater (oven, detector, inlet, or valve box)
19