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Microtech Gefell GmbH
MV 240 USB datasheet

MV 240 USB datasheet

Product catalog summary

Overview: The MV 240 is a ½" microphone preamplifier with an integrated analog-to-digital converter, designed by Microtech Gefell GmbH. It features a USB interface for connectivity and microphone power supply.

Specifications:

Microphone Power Supply: USB
Capsule Polarization Voltage: Adjustable between 200 V or 0 V
Frequency Range: 1 Hz to 80 kHz
Dynamic Range: 7 dB(A) to 160 dB
Sample Frequencies Supported: 48 kHz, 96 kHz, and 192 kHz

Functionality: The MV 240 USB preamplifier combines a high-impedance transducer with an analog-to-digital converter. It optimally adjusts the output signal of the microphone capsule to the dynamic range of the converter using an impedance converter and a low-noise preamplifier. The device processes sound pressure levels from 7 dB to 160 dB, exceeding the typical dynamic range of a ½" measurement microphone capsule.

Compatibility: The device is automatically detected by operating systems such as Windows, MacOS, and Linux, requiring no special hardware drivers. It is powered via the USB interface and can generate a 200 V polarization voltage for the microphone capsule, which can be disabled for electret capsules.

Connectivity: The preamplifier connects to the USB interface through a lockable LEMO® connector and a specialized LEMO® to USB adapter cable.

Additional Features: Two integrated generators are included to verify the 32-bit processing of the signal chain and to determine the reference value for a sound pressure of 1 Pascal.

Catalog excerpts

MV 240V" microphone preamplifier with analog-to-digital converter • microphone power supply: USB • capsule polarization voltage adjustable 200 V or 0 V Microphone preamplifier, stainless steel, in weather protected case MV240 Options and Accessories Typ Microphone holder 21 mm, turnable MH 93 Adapter for 1" microphone to 14" preamplifier A 63.1 Adapter for V* microphone to 14" preamplifier A 67 Angle adapter for 14" microphone to 14" preamplifier WA 20 Connection cable, 4 pin Lemo® to USB-A, 1m C 24.01 Connection cable, 4 pin Lemo® to USB-A, 2 m C 24.02 Connection cable, 4 pin Lemo® to USB-A, 5 m C 24.05 Connection cable, 4 pin Lemo® to USB-C, 1m C 24.01 C Connection cable, 4 pin Lemo® to USB-C, 2 m C 24.02 C Connection cable, 4 pin Lemo® to USB-C, 5 m C 24.05 C

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Sigma-Delta converter, 32 Bit, 192 kHz 2 level ranges USB, 1 channel, 32 Bit calibrated sound pressure values 192 kHz MV 240 Current consumption Power supply Frequency range Input impedance Maximum input Inherent noise with MKS 225 Polarization voltage Analog-to-digital converter Output signal Sample rate AD converter Output signal Connection to Operating system Temperature range, operation Temperature range, storage Humidity limits non condensing D.EN 311222.02 (16.08.2024) © Microtech Gefell GmbH The ^" measurement microphone preamplifier type MV 240 USB combines a high-impedance transducer...

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MV 240 USB datasheet

MV 240 USB datasheet

Catalog excerpts

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