Wavetek 39A Especificações descarregar pdf (Página 24)

User Manual 301/302

or 60VDC are present. Before operating an instrument, make sure the

line cord is connected to a properly grounded power receptacle.

Inspect the connecting cables and test leads for possible wear,

cracks, or breaks before each use.

For maximum safety, do not touch the product, test cables or any

other of the instrument parts while power is applied to the circuit under

test. ALWAYS remove power from the entire test system before

connecting cables or jumpers, installing or removing cards from the

computer or making internal changes, such as changing card address.

Do not touch any object that could provide a current path to the

common side of the circuit under test or power line (earth) ground.

Always keep dry hands while handling the instrument.

When using test fixtures, keep the lid closed while power is applied to

the device under test. Carefully read the “Safety Precautions”

instructions that are supplied with your test fixtures.

Before performing any maintenance, disconnect the line cord and all

test cables. Only qualified service personnel should perform

maintenance.

If you have no past experience in computer servicing, we strongly

recommend that installation and initial tests on the instrument be done

by your computer dealer or by the factory itself

Performance

Checks

The instrument has been inspected for mechanical and electrical

performance before shipment from the factory. It is free of physical

defects and in perfect electrical order.

Power

Requirements

The function generator may be operated from any one of the following

sources: a. 103.5 to 126.5 Volts (115 Volts, NOMINAL) b. 207 to 253

Volts (230 Volts, NOMINAL).

The instrument operates over the power mains frequency range of 48

to 63Hz. Always verify that the operating power mains voltage is the

same as that specified on the rear panel voltage selector switch.

The Model 301/302 should be operated from a power source with its

neutral at or near ground (earth potential). The instrument is not

intended for operation from two phases of a multi-phase ac system or

across the legs of a single-phase, three-wire ac power system. Crest

factor (ratio of peak voltage to rms.) should be typically within the

range of 1.3 to 1.6 at 10% of the nominal rms. mains voltage.

Configuring the Instrument

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 136 137

Sem comentários

Wavetek 39A Especificações Página 24