Meter Types - ALLEN & HEATH ML5000 User Manual

T GRP/AUX VU Meters 1-8. Illuminated moving
coil VU (volume unit) meters display the output
levels of mix 1 to 8. Depending on the setting of the
underpanel mode switches F1 these display group
or aux signals. The signal is metered post-fade,
post-mute.
U1 MAIN LRC VU Meters.
meters display the output levels of the main mix.
The signal is metered post-fade, post-mute. The
meters automatically switch to display PFL or AFL
levels when a PAFL or AFL switch is selected.
U2 MAIN LRC Led Meters.
meters duplicate the readings of the main VU
meters. They also switch to display PFL or AFL
when selected. Sensitivity ranges from –30dB to
+16dB. A 0dB meter reading represents 0dBu at
the main XLR outputs.
Three LED colours display signal condition:
Green. Normal signal readings up to 0dB.
Yellow. Hot signal readings above 0dB and up to
12dB. Loud moments reading up to 6dB are fine.
Higher readings warn of reduced headroom.
Red. Lights at +16dB to warn that you are within
5dB of clipping and audible distortion. If this flashes
then reduce the gain or mix levels.
U3 PAFL and AFL Indicators.
when an input PAFL or output AFL switch is
selected. They show that the main meters and
console monitor are switched to the P/AFL rather
than main mix signals.
U4 CALL Lamp. Lights when the intercom is
being signalled. Its large size and position in the
meterpod ensure it grabs the attention of the
operator when signalled.
V1 MATRIX Meter Select.
switch in the master section N to switch the right
hand VU meters to display the Matrix 1-8 rather
than Aux 9-16 output levels. The green LED in the
meterpod lights when matrix is selected.
V2 AUX/MATRIX VU Meters.
moving coil VU (volume unit) meters display the
output levels of Aux 9-16 or Matrix 1-8 if selected.
The signal is metered post-fade/level, post-mute.
54
Illuminated VU
These 16 LED bar
These light
Press the METERS
Illuminated

Meter Types

Both VU and LED bar types of meter are provided
on the ML5000. This gives you the best of both
average and peak metering.
10 7
20
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VU Meter. The VU (volume unit) meter is an
established standard for measuring audio signals.
Unlike LED meters, it is easy to read under all
lighting conditions. This makes it well suited to
outdoor festival work.
dynamics (attack and release) and is therefore good
at displaying the average music programme. It is
not able to display fast peaks and transients. The
scale is restricted between –20 and +5 to provide
good resolution around average reading. A reading
of '0' represents 0dBu at the main outputs.
LED Bar Meter. This meter comprises a ladder of
LEDs each set to light when the signal reaches its
preset level. It has the advantage of much faster
dynamics and can show the musical peaks and
transients. The scale is extended to read from a
low –30 to a very high +16 which represents a peak
warning 5dB before clipping.
Changing from LRC to LCR
The meters and faders are ordered LRC which is
preferred for most live sound applications. Internal
jumper link options are available to re-order the
faders and/or the meters to LCR if your application
requires it. This does not affect the order of the
P/AFL metering. Contact Allen & Heath for details.
5
3
1
0
3
5
+
It has reasonably slow
16
12
9
6
3
0
3
6
9
12
15
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ML5000 User Guide