Adjusting Bargraph Break-Points And Ballistics - BEL BM-A1 User Manual

BEL DIGITAL AUDIO

Adjusting bargraph break-points and ballistics

The adjustments, SW2 and SW6 are located near the power supply.
SW2-8 AES to analog adjust
OFF -18dBFS = 0 on analog scale
ON
-20dBFS = 0 on analog scale
The –18dB and –20dB settings define the correspondence between AES input level and the
0 mark on an analog scale. This allows analog scales to be used with digital signals.
Note: When digital inputs are used with an analogue scale the analogue outputs will be less
than that indicated on the meters since the digital to analogue converters clip at +15
dB. The effective loss is -3dB when the 18 dB position is selected and -5dB when the
20 dB position is selected.
SW2-7
OFF
OFF
ON
ON
SW2-5
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Note: The OFF position is obtained with a switch lever in the direction of the arrow, (to the
right in the above drawing).
 2004 BEL (Digital Audio) Ltd
BM-A1
BM-A1bargraph adjustments
SW2-6
Peak hold decay
OFF None (Off)
ON 3 seconds
OFF 7 seconds
ON Indefinite
SW2-4 SW2-3
Scale type
OFF OFF AES
OFF ON DIN
ON OFF VU
ON ON BBC
OFF OFF Extended VU
OFF ON NORDIC
ON OFF No scale
ON ON No scale
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Configuration
Version 0.2