
106
Input/Output Connectors
AC OUT connector
Set the frequency weighting characteristic of the signal output from the AC
OUT connector of the unit.
1. Press the MENU/ENTER key to bring up the menu list screen.
2. Use
the
keys to select [I/O] and press the MENU/ENTER
key. The I/O screen appears.
3. Use
the
keys to select [AC OUT] and press the MENU/ENTER
key. The AC OUT setting screen appears.
4. Use the
keys to select the frequency weighting characteristic
(OFF, Interlock, A, C, Z) and press the MENU/ENTER key.
When “Interlock” is selected, the main channel signal is output as
AC signal weighted by the frequency set at a measurement.
When “A”, “C” or “Z” is selected, the main channel signal is output
as AC signal weighted by the selected frequency.
Output voltage:
1 Vrms ±50 mVrms
(at Output Level Range Upper)
Example:
When the output level range upper is set to
120 dB, 1 Vrms ±50 mVrms is output at an
input of 120 dB.
Output impedance: 600 Ω
Load impedance:
10 kΩ or more
Suitable cable:
Output code CC-24 (BNC - mini plug cable)
The performance of other cables is not guaranteed.
If the “AC OUT” is set to OFF, the signal is not output.
Important
Using this feature will reduce battery life by
about 25 percent.
Содержание NL-42A
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