Specifications
SA-3051/SA-3052 One-third Octave Real-Time Audio Analyzer
Instrument Type ................................................................................ ANSI Class II real-time audio analyzer
Inputs
Microphone ..............................................................................................................Balanced low impedance
Connector .....................................................................................................................3 pin XLR female
Impedance ....................................... Suitable for 150 ohm microphones, actual impedance is 5 Kohms
Phantom Power ...................................................................................................................+12V simplex
Acoustical Signal Level .................................................................................44 \dB SPL to 136 \dB SPL
Instrumentation ........................................................................................High-impedance, unbalanced input
Connector ..........................................................................................................................................RCA
Impedance ................................................................................................1 Mohm in parallel with 30 pF
Signal Level ...................................................................................................................... -56 to +36 dBu
Balanced Bridging .......................................................................................Balanced, high-impedance input
Connector ................................................................................................. ¼" tip-ring-sleeve phone jack
Impedance ................................................................................................................................ 10 Kohms
Signal Level ...................................................................................................................... -56 to +36 dBu
Input Calibration
Microphone ...........................................................................................-30 dBu = 94 dB SPL = 24.5 mVrms
Instrumentation ........................................................................................0 dBu = 100 dB SPL = 0.775 Vrms
Balanced Bridging ...................................................................................0 dBu = 100 dB SPL = 0.775 Vrms
Filters
Filter Characteristic ..............................................................Fourth-order bandpass. Meets or exceeds ANSI
S1.11-1986 ClassII, Type E specifications
Frequency Range ..................................................................30 1/3 octave bands from 25 to 20 kHz on ISO
preferred 1/3 octave center frequencies
Center Frequency Accuracy .............................................................................................2% of design center
Band Center Frequencies ...................................................25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250,
315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500,
3150, 4000, 5000, 6300, 8000, 10000, 12500, 16000, 20000 Hz
Display
Spectrum Display ...............................................................................................................9 x 30 LED matrix
SPL Display ............................................................................................... 9 LED bargraph (4dB resolution)
4 digit full-screen display (
1
⁄
10th
dB resolution)
Display Resolution .....................................................................................................1, 2, 3, or 4dB per LED
Display Speed ............................................................................Fast, Medium, Slow and 20 second average
Memory
Type .............................................................................................CMOS SRAM with lithium battery backup
Number ...................................................................................................................................................... Six
Physical
Dimensions ..................................................................... Smaller than a breadbox (4.1"h x 10"w x 12.75"d)
Weight .........................................................................................SA-3051, 9 pounds; SA-3052, 11.5 pounds
Electrical
Power Requirements ......................................... Line Voltage: 108-125VAC, 60 Hz. 208-240VAC, 50/60Hz
Power Consumption ........................................................................................................................... 15 watts
In the interest of continuing product development, specifications of AudioControl Industrial products are subject to
change without prior notice.
8-1
Specifications
