Iso-Tech SLM 52N - Adjustment Data for Calibrator (B&K Type 4226 Pressure Mode); Typical Instrument Frequency Response at 0° Incidence

EN-16
11. OUTPUT CONNECTORS
3.5φ Plug Wiring Connection
Dc output
Ac output
Common output
AC Output:
An AC signal corresponding to the frequency-weighted signal is available at this connector.
Output voltage: 1Vrms±100mVrms (scale upper limit)
Output impedance: approx. 5kΩ
Load impedance:≧ 1MΩ
The output voltage when the instrument is in calibration mode
(-6dB from scale upper limit, 1000Hz sine wave) is 0.5Vrms.
DC Output:
A level-converted DC signal generated by RMS detection and logarithmic
compression is available at this connector. The signal reflects the frequency and time
weighting settings of the instrument.
Output voltage: 10mV±0.1mV/dB
Output impedance: approx. 5kΩ
Load impedance:≧ 1MΩ
The output voltage when the instrument is reading 94dB is nominally 0.94V DC.
12. ADJUSTMENT DATA FOR CALIBRATOR (B&K TYPE 4226 PRESSURE MODE)
Freq
units
31.5
Hz
63
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
dB +0.2 +0.3 +0.1 -0.1 -0.2 -0.1 0 +1.2 +3.9
13. TYPICAL INSTRUMENT FREQUENCY RESPONSE AT 0° INCIDENCE
OvUnUn Ov
Freq
units
31.5
Hz
40
Hz
50
Hz
63
Hz
80
Hz
100
Hz
125
Hz
160
Hz
200
Hz
250
Hz
315
Hz
400
Hz
500
Hz
0deg
dB
1.6 2.3 1.1 1.2 1.1 1.0 0.9 1.2 0.4 0.0 0.5 0.5 0.3
Freq
units
630
Hz
800
Hz
1000
Hz
1250
Hz
1600
Hz
2000
Hz
2500
Hz
3150
Hz
4000
Hz
5000
Hz
6300
Hz
8000
Hz
0deg
dB
0.2 0.2 0.0 -0.3 0.2 0.2 1.2 2.3 2.3 2.9 4.5 3.4