Directed Electronics A600 Manual de usuario descargar pdf (Pagina 2)

GENERAL'DESCRIPTION

The A600 is a general purpose linear amplifier designed for laboratory use. It is based on

a fast high-voltage operational amplifier with a feedback network chosen to give a voltage

amplification of 100! times. Any function or arbitrary waveform generator with low

output impedance and output voltage up to ±10!V can be used as an input device.

The amplifier outputs high voltage signals at high frequency. It is, thus, imperative for the

safe operation that the user understands the possibilities and limitations of the

instrument. Isolated BNC output connector is used to comply with safety requirements.

INPUT'AMPLITUDE

The amplitude of the input signal should normally be kept within ±3! V. The input

protection network limits the signal amplitude delivered to the power amplifier to a safe

value. It also effectively cuts accidental spikes and overshoots. However, large and

prolonged overvoltage at the input may blow the microfuse in the input protection circuit.

Keep input signals within ±3! V range.

Never connect any hig h vo lt age out put to any input or o utput of th e

instrument!

TROUBLESHOOTING

Problem

Condi=on

Solu=on

No output

Power switch does not lit

Check the mains fuse

located on the back

No output or very small,

distorted signal

Power switch OK

Check the input microfuse

located inside the device.

Constant high voltage

output

Without any input signal

Amplifier failure.

Contact flce@flce.se

You should suspect a blown input microfuse if the output is about zero or the amplifier is

producing a very low voltage, distorted copy of the input signal (due to the capacitive

coupling through the blown fuse).

ELECTRONICS AB

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Directed Electronics A600 Manual de usuario Pagina 2