User manual
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© 2005 PANORAMAdtv ALL rights reserved
AVMFlex-SA Series User Manual P/N 821624 Rev-A
Section 3: Technical Information
Level Meter Specifications
Level Calibration:
Frequency Response:
Level Meter Type:
LED Colors:
Metering Range:
Display Mode (Ballistics):
VU Characteristics:
Rise Time =
Decay Time =
PPM Characteristics:
Attack Time =
Decay Time =
Bargraph Length:
LED Segment Size:
LED Segment Pitch:
Segment Brightness, (I f = 20 mA):
Segment Brightness, Uniformity:
Adjacent Segment "Off" Brightness:
Peak Emission Wavelength:
-6, 0, +4, +8 dBv, Selectable
20 Hz to 18 kHz (±0.5 dB)
10-segment LED Bargraph Display
Tricolor (red, amber, green)
23 dB
VU or PPM, Selectable
300 millisecond to 99 % of full indication
300 millisecond
10 milliseconds
2 seconds, 0 to -20 dB
2.00" (50.8 mm)
0.152" x 0.305" (3.56 x 7.75 mm)
0.20" (5.08 mm)
5.5 mcd
<8% difference between segments
<1% of brightness of active segment
green: 570 nm red: 630 nm
Level Meter DIP Switch Location
Two DIP switch modules allow the user to set the level meter parameters independently for each of the two bargraph displays. These
DIP switches are accessible by removing the top cover of the unit and are located on two PCBs installed at right angles to the front
panel where the level meters are installed. The DIP switches face upwards for easy adjustment.
There are four sections (1, 2, 3, 4) on each DIP switch module. The first two sections (1 and 2) are for setting the Meter Input
Gain Calibration and the second two sections (3 and 4) are for setting the Bargraph Display Mode.
Meter Input Gain Calibration Settings
DIP switch sections 1 and 2 set the Meter Input Gain Calibration, which determines the level of the input signal that will result in
a "0" reading on the meter bargraphs. The factory setting is +4 dBv, but can instead be set for -6 dBv, 0 dBv, or +8 dBv by the
user. See the diagram below for settings.
Bargraph Display Modes
DIP switch sections 3 and 4 determine how peak levels are displayed (Display Mode) and select either the PPM mode or an auto-
reset VU Peak mode (NOT the PPM value!). The PPM mode exhibits an attack time of 10 milliseconds and a decay time of 2
seconds from 0 to -20 dB. The VU mode exhibits a 300 millisecond rise to 99% of full indication and a decay of 300 milliseconds.
The factory setting is VU mode. See the diagram below for settings.
Level Meter Settings