Norsonic nor1216, Инструкция по эксплуатации

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16 Chapter 5
Connecting the Nor1216 to Nor140 and Nor150
Connecting to Nor140
In the SETUP – 1 (Instrument menu) – 4 (Input menu),
you select which type transducer you have connected.
Select either “1214/16 Ver” for Nor1216 with vertical
frequency correction applied and “1214/16 Hor” for
Nor1216 with horizontal frequency correction applied.
If the Nor1227 is used as microphone cartridge, the
polarization voltage should be set to OFF. Set it to ON
if Nor1225 is used
NOTE: Please note that the System
Check signal must be deactivated when
you want to calibrate the microphone
with an acoustical calibrator. Unless de-
activated, you will read unstable values due to
the interference between the Sytem Check signal
and the signal from the sound calibrator.
It is not needed to do any settings in the “2:corrections”
in this menu. This is all preset when selecting the 1216
as transducer.
The point 1: “Level range” should not be used, unless
high levels above 140dB need to be measured. This
requires the use of the Nor1225 which is a 200V polar-
ised microphone cartridge. Please also consult the
instruction manual for the Nor140 for further information
about the use of the “high level” setting.
To activate the System Check push SETUP – 1 (Instru-
ment menu) –
9
(Misc. Parameters) –
7
(Microphone
check)
Switch the menu point “Chk signal:” ON.
This will activate the calibration tone (1KHz – 1Vrms)
each time you enter into the calibration menu.