3com 3645A User Manual

 

2

The following general safety precautions must be observed during all phases of

operation, service, and repair of this instrument. Failure to comply with these precau-

tions or with specific warnings elsewhere in this manual violates safety standards of

design, manufacture, and intended use of the instrument. The Manufacturer assumes

no liability for the customer’s failure to comply with these requirements.

1. Users should operate according to this manual.

2. There is high voltage inside the instrument, please avoid touching it directly.

3. Please read the user manual carefully before you use the instrument to assure your

safety.

4. Ground the Instrument

This product is provided with a protective earth terminal. To minisize shock hazard,

the instrument chassis and cabinet must be connected to an electrical ground. The

instrument must be connected to the AC power supply mains through a three-conduc-

tor power cable, with the third wire firmly connected to an electrical ground (safety

ground) at the power outlet.

5.Keep Away From Live Circuits

Operating personnel must not remove instrument covers. Component replacement

and internal adjustments must be made by qualified service personnel. Do not split the

components when power cable connected.

Under certain conditions, dangerous voltages may exist even with the power cable

removed. To avoid injuries, always disconnect power, discharge circuits and remove

external voltage sources before touching components.

Do Not Substitute Parts or Modify Instrument

Because of the danger of introducing additional hazards, do not install substitute

parts or perform any unauthorized modification to the instrument. Return the instrument

to a qualified  dealer for service and repair to ensure that safety features are maintained.

1. Inspect the power selection switch on the back panel, to assure if the selected

voltage is the same as environment power voltage. If not, please refer to the notice

around the power plug.

2. Before connecting the power supply, please be sure that the switch on the front

panel should be in the off position.