Calibration Products
9350C SpecificationsThe Acoustic Calibration Workstation Model 9350C has been carefully designed with the aim of providing consistent and reliable calibrations and conformance tests with the highest possible accuracy. System verification procedures function to assure a stable, consistent operating environment and reduce systematic and random errors to a minimum.
With easy, user-friendly operation and proven stepped sine excitation method, the 9350C provides fast, consistent, reliable calibrations and excels in efficient, high-volume transducer calibrations, just like the manufacturers do it. The system also allows for easy integration of user-defined logos for customized calibration certificates.
|
SYSTEM USES |
|
|
Microphone types calibrated |
1/4", 1/2" and 1" externally polarized and prepolarized condenser microphones |
|
Microphone calibration |
Open-circuit sensitivity, pressure response, 0 degree incidence free-field response, and random incidence response |
|
Microphone calibration withpreamplifier |
Closed-circuit sensitivity, pressure response, 0 degree incidence free-field response, and random incidence response |
|
Pistonphone calibration |
Output sound pressure level, frequency and distortion |
|
Preamplifier conformance check |
Frequency response and gain |
GENERAL |
|
|
Calibration Method |
Single level / single frequency insert voltage technique and Electrostatic Actuator Response (Freq. Response) |
|
Frequency Range |
20 Hz to Upper Limiting frequency of Microphone Under Test |
|
System Accuracy (actuator response) |
0.5 dB |
|
Correction curves - supplied |
PCB Piezotronics, Larson Davis Laboratories, G.R.A.S., and Brüel & Kjaer microphones |
|
Correction curves - other |
Manual data entry capable into text file |
|
Calibration data management |
Yes |
|
Automatic pass/fail classification |
Yes |
|
CE marking |
Optional |
|
REFERENCE MICROPHONE
|
|
|
Model |
G.R.A.S. 40AG |
|
Sensitivity |
12.5 mV/Pa |
|
Frequency range |
3.15 - 20,000 Hz |
|
Dynamicrange |
27 - 160 dB (re. 2 x 10-5 Pa) |
|
Polarization voltage |
200 Volts |
|
PISTONPHONE
|
|
|
Model |
G.R.A.S. 42AA |
|
Sound Pressure Level |
114 dB (re. 2 x 10-5 Pa) |
|
Sound Pressure Level accuracy |
+/- 0.08 dB (re. 2 x 10-5 Pa) - According to IEC 942 (1988) Class I |
|
Frequency |
250 Hz +/- 0.5% |
|
Distortion |
<1.5% |
ENVIRONMENTAL |
|
|
System warm-up time |
30 minutes |
ELECTRICAL |
|
|
Main Voltage Supply |
115 Volts - optional 220Volts |
Return to Model 9350C page
Return to Calibration Home page
|
