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The EM46BD enables precision sound-pressure measurements and high-level, high-frequency measurements in larger-channel-count aerospace, automotive and general laboratory-testing applications.

The fully repairable EM46BD comes in a preassembled kit consisting of a 1/4in Isotron high-precision condenser microphone and a TEDS-enabled preamplifier, constructed of stainless steel for high durability.

Units are assembled in a clean-room environment to minimise contamination in the contacts and are calibrated together to form a reliable acoustic measurement system.

Offered with an audio frequency range from 10Hz to 70kHz and a wide dynamic range, the microphone is designed according to guidelines set by the IEC 61094 Class 1 standard for acoustic product reliability and precision.

Incorporation of TEDS technology allows the microphone and preamplifier to be recognised by any smart-transducer-compatible input module.

When connected, the analyser will derive information such as microphone type, serial number and sensitivity, which is able to be read by the application software.

Recommended accessories include the Endevco model EM42AA handheld pistonphone calibrator, which facilitates field checks of complete acoustic measurement systems and may be used to conduct level calibrations of laboratory measurement microphones, as well as the Endevco model 4416B Isotron power supply (2-20mA) and the model 133 three-channel signal conditioner.

All Endevco acoustic sensors and instrumentation are backed by a five-year comprehensive product warranty.

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