Sound and Vibration Instrument Hire and Calibration
GRAS 51AB Specifications
The GRAS 51AB has been withdrawn, the following details are for information
| GRAS 51AB : Sound Intensity Calibrator |
|---|
Input Connector : BNC socket
Maximum Input Signal : 1 Vrms, recommended signal is 300 mVrms
Input Level for 94 dB re 20 µPa : 50 mV rms, nominal
Frequency Range : 40 Hz to 8 kHz
Pressure-Intensity Index : > 27 dB, for 25 mm nominal microphone spacing
Sound Pressure Level difference between channels : < 0.1 dB
Operating Temperature Range : +5 °C to +40 °C
EMC : EN 50081-1, EN 50082-1
Safety : EN 61010-1, portable equipment pollution category 2
Physical :
Height : 42.2 mm
Width : 50.3 mm
Depth : 60.0 mm
Weight : 515 g : 1.3 lb
Accessories included :
Phase shifting element
two 1/4" adaptors
BNC cable and carrying case
Maximum Input Signal : 1 Vrms, recommended signal is 300 mVrms
Input Level for 94 dB re 20 µPa : 50 mV rms, nominal
Frequency Range : 40 Hz to 8 kHz
Pressure-Intensity Index : > 27 dB, for 25 mm nominal microphone spacing
Sound Pressure Level difference between channels : < 0.1 dB
Operating Temperature Range : +5 °C to +40 °C
EMC : EN 50081-1, EN 50082-1
Safety : EN 61010-1, portable equipment pollution category 2
Height : 42.2 mm
Width : 50.3 mm
Depth : 60.0 mm
Weight : 515 g : 1.3 lb
Phase shifting element
two 1/4" adaptors
BNC cable and carrying case
* Our standard hire charges are based on a 4-day minimum period, details other options.