Table of Contents
Advertisement
3. Plug the microphone and associated preamplifier into the appropriate
input on the 2010.
4.
Set the controls and push-buttons as follows:
GAl N CONTROL
OUTPUT SECTION ATTENUATOR
EFFECTIVE AVERAGING TIME
FREQUENCY RESPONSE
INPUT
READ OUT SELECTOR
"Cal."
"x
1"
"Fast"
"Linear"
As appropriate
"Lin", AC or DC
5.
Set the INPUT SECTION ATTENUATOR so that 120 dB (for Piston-
phone calibration) or 90 dB (for Sound Level Calibrator calibration) is
indicated on the range setting indicators.
6.
Apply the sound source to the microphone. Using the Pistonphone
4220 or the Sound Level Calibrator 4230 the meter should read* 124
or
94
dB respectively. If it does not, adjust the SENS. potentiometer
beside the input socket that is being used until the correct deflection
is obtained.
Using Internal Reference Voltage
1.
Carry out the preliminary adjustments if necessary.
2.
Fit the meter scale appropriate to the sensitivity of the microphone
being used. (See Table 3.1).
3.
Plug the microphone and associated preamplifier into the appropriate
input on the 2010. Any microphone accessories can remain in
position.
4.
Set the controls as follows:
GAl N CONTROL
INPUT SECTION ATTENUATOR
OUTPUT SECTION ATTENUATOR
EFFECTIVE AVERAGING TIME
READ OUT SELECTOR
"Cal."
"100 mV"
"x
1"
"Fast"
"Lin.", AC or DC
*
For the exact sound pressure, the Pistonphone Calibration chart or the Sound Level
Calibrator manual should be consulted.
24
Advertisement
Table of Contents
