Wavetek 39A Specifikace stáhnout pdf (Strana 5)

SAFETY PRECAUTIONS

Protect yourself. Follow these precautions:

• Don’t bypass the power cord’s ground lead with two-wire extension cords or plug

adapters.

• Don’t disconnect the green and yellow safety-earth-ground wire that connects the

ground lug of the power receptacle to the chassis ground terminal (marked with

• Don’t plug in the power cord until directed to by the installation instructions.

• Don’t repair the instrument unless you are qualified electronics technician and know

how to work with hazardous voltages.

• Pay attention to the WARNING statements. They point out situations that can cause

injury or death.

• Pay attention to the CAUTION statements. They point out situations that can cause

equipment damage.

The American National Standard Institute (ANSI) states that a shock hazard exists when voltage levels

greater than 30V RMS, 42.4V peak, or 60 VDC are present. A good safety practice is to expect that

hazardous voltage is present in any unknown circuit before touching or disconnecting the line cord. Before

operating this 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, or making internal changes. 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. If you are using test fixtures, keep the lid closed while power is

applied to the device under test. Safe operation requires that the instrument covers be closed at all times

during operation.

Carefully read the Safety Precautions instructions that are supplied with your instrument. Instruments, cables,

leads or cords should not be connected to humans. Before performing any maintenance, disconnect the

line cord and all test cables.

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Wavetek 39A Specifikace Strana 5