IDA8 Global-Net User Manual332
© 2020, ATEÏS. All rights reserved.
After completed the parameter settings at the lower part of [Amplifier Gain Setting] page, the
IDA8C-SW will start to measure the value received from the internal circuit, and displays it on
the grid at the upper part of window.
Caption: Indicate the caption of amplifier channel.
Unloaded Reference: Display the value of an unloaded reference which is the gain of an
amplifier when there is no load to the zone. This value is used to determine if there is a fault of
a normal amplifier.
Full Loaded Reference: Display the value of a full loaded reference which is the gain of an
amplifier when there is a full load to the zone. This value is used to determine if there is a fault
of a normal amplifier.
Measure: Display the value of measure, which is the gain of an amplifier.
Faults:
Amplifier Gain Too High:
If the measurement > (Unloaded Reference x (100% + Tolerance%)), an Amplifier Gain Too
High fault is recognized. And the fault will occurs, please check the following points:
o Make sure there is a good connection between the speaker and the IDA8C/S.
o Replace the non-working speaker with a working one.
o Check the gain of the amplifiers to see if the value has changed after getting a
reference.
If all of the above actions have been checked but the amplifier still receives a fault that is too
high, replace the amplifier.
Amplifier Gain Too Low:
If the measurement < (Full Unloaded Reference x (100% - Tolerance%)), an Amplifier Gain
Too Low fault is recognized. And the fault will occurs, please check the following points:
o Check if the signal going into the amplifier is too large. Some amplifiers have an
indicator "Overload". Check this indicator.
o Check if speaker is working or damaged.
If all of the above have been checked but the amplifier still receives a fault that is too low,
change the amplifier.
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