General Information
Site Preparation Guide 7
Important Safety Warnings
Before moving on, there are several important safety notices that you should
always keep in mind when using the 5975 Series Mass Selective Detector.

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:
•The wiring between the MSD power cord and the AC power supply, the AC
power supply itself, and the wiring from the AC power supply to the power
switch.
With the power switch on, potentially dangerous voltages also exist on:
•All electronics boards in the instrument.
•The internal wires and cables connected to these boards.
•The wires for any heater.
Connecting the MSD to power sources that are not equipped with protective
earth contacts creates a shock hazard for the operator and can damage the
instrument.
Interrupting the protective conductor inside or outside the MSD or
disconnecting the protective earth terminal creates a shock hazard for the
operator and can damage the instrument.
Make sure the power cords supplied with the MSD are appropriate for your
country and site before using them. Maintain easy access to the power cords
so they can be disconnected during m aintenance.
WARNING All these parts are shielded by covers. With the covers in place, it should be 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.
WARNING If the power cord insulation is frayed or worn, the cord must be replaced. Contact
your Agilent service representative.
5975 Series Site Prep.book Page 7 Thursday, January 31, 2008 9:47 AM