Frye FONIX 7000 - Manual (Page 181)

Appendix A
173
Specifications
ACOUSTIC DRIVE SIGNAL
Frequencies: Composite: 200 to 8000 Hz in 100 Hz intervals
SINE: 200 to 8000 Hz 1/12 oct, nearest 100 Hz intervals
Frequency Accuracy: 1%
Amplitute (RMS 5-dB steps)
Chamber COMPOSITE: 40 to 100 dBSPL; SINE: 40 to 100 dBSPL
Sound Field COMPOSITE: 40 to 90 dBSPL; SINE: 40 to 90 dBSPL
Amplitude Accuracy Within 1 dB from 300 to 5000 Hz, all others within
(All Modes, M1950E only) 3 dB; after leveling
CREST FACTOR
Composite Mode Signal: Less than 12 dB (4 to 1 ratio of peak to RMS value).
TELECOIL DRIVE
1, 1.78, 3.16, 5.62, 10, 17.8, 31.6, 56.2, 100 mA/meter. ANSI S3.22-1996
DIGITAL READOUT OF SOUND PRESSURE LEVEL
Frequency Range: 200 through 8000 Hz.
Amplitude Range: From 0 through 150 dB (–90 through +110 dB gain).
Resolution: 0.1 dB.
Type: True RMS
Accuracy (M1950E): Within 1 dB plus or minus 1 digit from 300 to 5000 Hz; within 2
dB plus or minus 1 digit for all other frequencies.
SPL Equivalent Input Noise: Less than 50 dB RMS (M1950E)
Noise Reduction:
Averages the measured signal in synchronism with the signal
generator by the factor chosen. Factors of 2, 4, 8, and16 available.
Random noise will be reduced by an amount equal to the inverse
of the square root of the factor chosen.
BATTERY CURRENT MEASUREMENT
Range: 0 to 20 mA.
Accuracy: Within ± 5% of reading plus or minus 0.01 mA.
Resolution: 0.01 mA.
Voltages supplied: 1.5 (silver), 1.3 (zinc air). See Appendix B, ANSI S3.22-1996.
Note: The above accuracy applies only if the battery pill is disconnected during the level-
ing operation.