GRAS 40PP-S1 CCP Free-field QC Microphone, High Pressure

Freq range: 10 Hz to 20 kHz
Dyn range: 32 dB(A) to 142 dB
Sensitivity: 10 mV/Pa (± 3 dB)

Technology

Typical applications and use

  • Production-line testing of drivers, receivers, and microspeakers
  • Sound-scape recording in array configurations
  • Multichannel measurements (analysis)

Design

The cost-effectiveness of the 40PP-S1 is a key consideration when setting up multiple production lines. Close manufacturing tolerances provide the 40PP-S1 with a high degree of interchangeability – a major advantage when used in production-line test setups.

The robust standard BNC connector of the 40PP-S1 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 GRAS 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.

Microphone Calibration

Calibration is easy with a GRAS pistonphone, such as the GRAS 42AA, together with a ¼" microphone adapter.

Before leaving the factory, GRAS products are tested and calibrated by GRAS, and an individual test certificate is included with the product.

Warranty

GRAS offers 3 years warranty against defective materials and workmanship.

Specifications

Frequency range (±1 dB)
Hz
50 to 5 k
Frequency range (±2 dB)
Hz
5 k to 20 k
Frequency range (±3 dB)
Hz
10 to 50
Dynamic range lower limit (microphone thermal noise)
dB(A)
<32
Dynamic range upper limit
dB
142
Set sensitivity @ 250 Hz (±3 dB)
dB re 1V/Pa
10
Power supply (Constant Current Power)
mA
2 to 20
Microphone venting
Front
Output impedance
Ω
<50
Temperature range, operation
°C / °F
-10 to 50 / 14 to 122
Temperature range, storage
°C / °F
-40 to 85 / -40 to 185
Influence of axial vibration @1 m/s²
dB re 20 µPa
50
TEDS UTID (IEEE 1451.4)
27 v. 1.0
Connector type
BNC
CE/RoHS compliant/WEEE registered
Yes/Yes/Yes
Weight
g / oz
5.5 / 0.19401
Specification Conditions

Typical frequency response

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.

Dimensions

 

Ordering info

Optional accessories

GRAS AA0039-CL BNC to BNC 50 Ω extension cable, customized length
GRAS 12AL 1-Channel CCP Power Module with A-weighting filter
GRAS AL0028 Tripod adapter
GRAS RA0092 Rain-protection Cap for array microphones
GRAS 42AP Intelligent Pistonphone, Class 0
GRAS 42AG Multifunction Sound Calibrator, Class 1

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.

Get Quote