sauter KERN SW 1000 Instruction Manual page 38

4.6.1 AC OUT (alternating voltage output)
There are two analog outputs on the sound level meter: DC output and AC output.
Connect the DC output or AC output to the other device or system using coaxial
cables. The input impedance of the termination device or system should be
approximately 5 kΩ.
The connection for the AC voltage output is located on the bottom of the sound level
meter. It outputs the signal from the microphone directly without any adjustment
possibility. The maximum output voltage is 5 Vrms (±7 V peak) and the maximum
output current is ±15 mA.
☆Note : If the input resistance of the termination device or system is not high enough,
you will need to add an impedance matching circuit. The AC output can only be used
for noise recording or monitoring because the background noise is higher than the
lower limit of the linear measurement range of the sound level meter.
4.6.2 DC OUT (direct voltage output)
The DC voltage output is used to output the analog DC voltage signal, which is
proportional to the measurement result with a ratio of 10 mV/dB. For example, at 93.8
dB the output will output 938 mV. This option is recommended for filtering or averaging
the output signal to eliminate noise.
4.6.3 Printers
38
The DC output of the level meter can set the signal output for the
level meter mode. Press the arrow keys <▲> , <▼> , <◄> , <►>
to select.
Filter: A, B, C, Z (flat)
Detector: Fast, slow, Imp.
Mode: SPL, LEQ, Peak
1/1 Octave DC Out defines the output signal in 1/1 octave mode.
The following options are available: LAeq, LBeq, LCeq, LZeq, 31.5
Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16
kHz. Press the arrow keys <◄>, <►> to select.
The Print option allows you to set the printer to
print automatically or manually. If you select the
Auto option, measurement results are printed
automatically after the measurement stops.
SW-BA-e-2020