Typical applications and use
- Production-line testing of drivers, receivers, and microspeakers
- Sound-scape recording in array configurations
- Multichannel measurements (analysis)
The cost-effectiveness of the 40PP is a key consideration when setting up multiple production lines. Close manufacturing tolerances provide the 40PP with a high degree of interchangeability – a major advantage when used in production-line test setups.
The robust standard BNC connector of the 40PP ensures an easy-to-handle setup and supports the use of standard RG58 cables all the way from the microphone to the input module.
The integrated CCP (Constant Current Power) preamplifier requires a constant-current power supply, such as the G.R.A.S. 12AL 1-Channel CCP Power Module with A-Weighting filter, or any other CCP compatible power supply or input module. The built-in TEDS (Transducer Electronid Data Sheet, according to IEEE 1451.4) chip provides information about the microphone that can be used by systems designed for use with TEDS.
Calibration is easy with a G.R.A.S. pistonphone, such as the G.R.A.S. 42AA, together with a ¼" microphone adapter.
Before leaving the factory, G.R.A.S. products are tested and calibrated by G.R.A.S., and an individual test certificate is included with the product.
G.R.A.S. Sound & Vibration continually strives to improve the quality of our products for our customers; therefore, the specifications and accessories are subject to change.
|Frequency range (±1 dB)||Hz||TBD|
|Frequency range (±2 dB)||Hz||TBD|
|Frequency range (±3 dB)||Hz||TBD|
|Dynamic range lower limit (microphone thermal noise)||dB(A)||TBD|
|Dynamic range lower limit with G.R.A.S. preamplifier||dB(A)||TBD|
|Dynamic range upper limit||dB||TBD|
|Dynamic range upper limit with G.R.A.S. preamplifier @ +28 V / ±14 V power supply||dB||TBD|
|Dynamic range upper limit with G.R.A.S. preamplifier @ +120 V / ±60 V power supply||dB||TBD|
|Dynamic range upper limit with G.R.A.S. CCP preamplifier||dB||TBD|
|Open-circuit sensitivity @ 250 Hz (±2 dB)||mV/Pa||TBD|
|Open-circuit sensitivity @ 250 Hz (±2 dB)||dB re 1V/Pa||TBD|
|IEC 61094 designation||TBD|
|Temperature range, operation||°C / °F||TBD / TBD|
|Temperature range, storage||°C / °F||TBD / TBD|
|Temperature coefficient @250 Hz||dB/°C / dB/°F||TBD / TBD|
|Static pressure coefficient @250 Hz||dB/kPa||TBD|
|Humidity range non condensing||% RH||TBD|
|Humidity coefficient @250 Hz||dB/% RH||TBD|
|Influence of magnetic field @80 A/m, 50 Hz||dB re 20 µPa||TBD|
|Influence of axial vibration @1 m/s²||dB re 20 µPa||TBD|
|Connector type||3 m 7-pin LEMO Cable|
|CE/RoHS compliant/WEEE registered||No/No|
|Weight||g / oz||/ TBD|
|G.R.A.S. AM0364||Windscreens, Ø40mm (Set of 6)||G.R.A.S. RA0092||Rain-protection cap|
|G.R.A.S. RA0096||Tripod Adapter|
|G.R.A.S. AA0035||3 m BNC–BNC cables|
|G.R.A.S. AA0036||5 m BNC–BNC cables|
|G.R.A.S. AA0037||10 m BNC–BNC cables
|G.R.A.S. AA0039-XX||Custom length BNC–BNC cables|
|G.R.A.S. 12AL||1-Channel CCP Power Module with A-Weightingfilter|
|G.R.A.S. 42AP||Intelligent Pistonphone|
|G.R.A.S. 42AB||Sound Calibrator|
|G.R.A.S. CA0034||Traceable Calibration|