Dynatech TD10000Q Инструкции пользователя - Страница 14

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AMPLIFIER

Precautions

Introduction



If the CPL turns constant red, the output is muted, and the -4dB signal



LED is on, then the amplifier has gone into maximum current protection.

NOTE

This situation is caused by an excessive input signal and is not due to a

short circuit. Turn down the input signal to avoid or remedy this situation.

Temperature protection

Thermal measurement points are provided on each output channel as well as on the

power supply. These indicators will, if the pre-specified temperature level is

exceeded, give a high temperature warning. This warning condition is indicated by

a flashing TEM LED on the front panel.

As the amplifier approaches a thermal protection threshold, the warning LED

sequence will start with short " on-time" bursts. If the amplifier continues to

overheat and approaches the temperature limit, the flashing sequence will be

defined by longer and longer on-time bursts until the protection mode is activated.

If the temperature becomes too high to continue safe operation, the overheated

output channel(s) will be muted until the temperature returns to an acceptable level.

Fully active temperature protection (with muting) is indicated by a constantly

illuminated TEM LED. Temperature measurements will continue at 6 second

intervals. The output will un-mute when the channel or power supply returns to a

safe operating temperature.

The Power Average Limiter (PAL) controls the current-drawing relationship

between the power supply and the mains inlet. PAL limits the maximum average

power consumption according to the power supply capabilities, ensuring that the

PSU will not overload. In addition, in the larger models that potentially could pull

more current from the mains than the mains fuses are specified to handle (more

than 16A), PAL limits the amplifier's maximum current draw to prevent blowing the

mains fuse.

Soft-Start

High powered amplifiers with inadequate inrush limiting can pull considerable

current from the mains at turn-on. This can result in tripping of fast-acting mains

breakers. Such is not the case with TD-10000Q amplifier. The TD-10000Q amplifier

has very low inrush power as the capacitors are charged slowly and in a controlled

manner ensuring that breakers will not trip.

TD10000Q

Front Panel

Rear Panel

Operation and Performance