Cirrus Optimus Green Series, Instrument Hanbook

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Optimus sound level meter - instrument handbook
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8.4.8 Menu/quick settings
The quick settings available are:
UK:
3 dB, no threshold, no time weighting, criterion level of 85 dB
EU:
3 dB, no threshold, no time weighting, criterion level of 85 dB
OSHA HC & PEL
Integrator 2: 5 dB, 80 dB threshold, slow time weighting, 90 dB criterion
Level
Integrator 3:
5 dB, 90 dB threshold, slow time weighting, 90 dB criterion
Level
OSHA HC & ACGIH
Integrator 2: 5 dB, 80 dB threshold, slow time weighting, 90 dB criterion
Level
Integrator 3:
3 dB, no threshold, slow time weighting, 85 dB criterion
Level
MSHA HC & EC
Integrator 2: 5 dB, 80 dB threshold, slow time weighting, 90 dB criterion
Level
Integrator 3:
5 dB, 90 dB threshold, slow time weighting, 90 dB criterion
Level
Custom
Custom settings defined by the NoiseTools software
8.5 Electrical outputs
8.5.1 AC output
The AC output is provided on the 3.5 mm jack socket at the bottom of the
instrument.
Do not use a stereo jack plug in this socket. Only use a 3.5 mm mono jack plug.
The AC output has four settings: a combination of high or low levels and a 0 dB or
+20 dB gain.
Voltages and full-scale levels are as follows:
High levels (70-140 dB)
0 dB gain
1.3 Vpk-pk (450 mVrms) at full scale 140 dB
+20 dB gain 1.7 Vpk-pk (600 mVrms) at full scale 132 dB
Low levels (20-90 dB)
0 dB gain
400 mVpk-pk (140 mVrms) at full scale 90 dB
+20 dB gain 1.3 Vpk-pk (450 mVrms) at full scale 90 dB