Gracey & Associates   01234 708835



Gracey Logo

Sound and Vibration Instrument Hire and Calibration

GRAS 51AB Specifications


GRAS 51AB Sound Intensity Calibrator
 
GRAS 51AB : Sound Intensity Calibrator £ 8 a day *
 
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
 
E&OE - specifications subject to change without notice.