GRAS 46AD

Product catalog summary

Introduction
The GRAS 46AD is a high-sensitivity, 1/2" Constant Current Power (CCP) pressure microphone set designed for medium sound pressure levels at medium frequencies. It features a BNC connector and is TEDS compatible, ensuring data safety and reducing measurement errors through a simple, reliable design.

Specifications
- Frequency Range: 3.15 Hz to 10 kHz
- Dynamic Range: 18 dB(A) to 138 dB
- Sensitivity: 50 mV/Pa
- Temperature Range: -30°C to 70°C (-22°F to 158°F)
- Humidity Range: 0 to 95% RH non-condensing
- Compliance: IEC 61094-4 WS2P
- Connector Type: BNC

Design and Components
The microphone set includes a GRAS 40AD 1/2" Prepolarized Pressure Microphone and a GRAS 26CA Preamplifier, known for low self-noise and excellent performance. The set is assembled in a clean-room environment and can be dismounted for separate use.

Applications
Ideal for acoustic measurements in closed couplers or at boundaries, the 46AD is suitable for general acoustic diagnostics. For higher temperature applications, GRAS probe microphones are recommended.

Compatibility and System Verification
The microphone requires a constant current input module with 4 mA and 24 V CCP voltage supply. It is IEEE 1451.4 TEDS v. 1.0 compliant, allowing data management through Transducer Electronic Data Sheets. System verification is recommended using GRAS sound calibrators.

Calibration and Service
GRAS offers traceable and accredited calibration services. Microphones are calibrated at the factory and should be recalibrated annually. Damaged diaphragms can be replaced at a reasonable cost.

Quality and Warranty
Manufactured in Denmark, GRAS microphones are made from high-quality materials ensuring durability and reliability. A 5-year warranty covers defects in materials and workmanship.

Optional Accessories
Various accessories are available, including cables, microphone holders, windscreen, and calibration devices.

Company Overview
Since 1994, GRAS has specialized in high-quality measurement microphones for various industries, emphasizing innovation, quality, and reliability.

Catalog excerpts

Freq range: 3.15 Hz to 10 kHz Dyn range: 18 dB(A) to 138 dB Sensitivity: 50 mV/Pa The GRAS 46AD is a 1/2" Constant Current Power (CCP) pressure microphone set for measuring medium sound pressure levels at medium frequencies. It is terminated with a BNC connector and is TEDS compatible. The equivalent traditional 200 V (LEMO) type is GRAS 46AP. Sound & Vibration GRAS Sound & Vibration A/S Skovlytoften 33, 2840 Holte, Denmark www.gras.dk

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GRAS 46AD 1/2" CCP Pressure Standard Microphone Set, High Sensitivity Introduction Through a close cooperation with our customers, we know that data-safety is highly important because the costs related to unsuited and unreliable sensors may determine whether your project turns into a success or not. For our users, data safety translates directly into requests for easier microphone selection, simple system configuration and reduction of measurement errors. To meet these requirements, we invented the microphone set concept. It is simple, reliable and robust and consists of a microphone cartridge...

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GRAS 46AD 1/2" CCP Pressure Standard Microphone Set, High Sensitivity channel. However, it is not a check of whether the microphone is within specifications or not. For daily verification and check of your measurement setup, we therefore recommend using a sound source like the GRAS 42AG Sound Calibrator. For proper sensitivity calibration we recommend using a reference sound source like the GRAS 42AP Intelligent Pistonphone. Service Should you by mistake damage the diaphragm on a GRAS microphone we will in most cases be able to exchange it at a very reasonable cost and short turn-around time....

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GRAS 46AD 1/2" CCP Pressure Standard Microphone Set, High Sensitivity GRAS Sound & Vibration

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GRAS 46AD 1/2" CCP Pressure Standard Microphone Set, High Sensitivity Typical frequency response Free-field corrections for different angles of incidence GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.

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GRAS 46AD 1/2" CCP Pressure Standard Microphone Set, High Sensitivity GRAS Sound & Vibration

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GRAS 46AD 1/2" CCP Pressure Standard Ordering Info Microphone Set, High Sensitivity

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Tradition Since the establishment in 1994, GRAS has been 100% dedicated to developing and manufacturing high-quality measurement microphones and related acoustic equipment. Innovation We work with everybody with an interest in sound or noise within the fields of aerospace, automotive, audiology, consumer electronics, noise monitoring, building acoustics and telecommunications. Quality At GRAS we know that in order for you to trust your measurement results; signal quality, stability and robustness are essentials. We design and build them to perform under real life conditions - and beyond. Sound...

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GRAS 46AD

GRAS 46AD

Catalog excerpts

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