MV 240 1/2“ Microphone Preamplifier with integrated analog-to-digital converter R • USB interface (4-pin LEMO�) • power supply via USB • capsule polarisation voltage: internally generated (200 V) The 1/2“ measurement microphone pre-amplifier type MV 240 combines a high-impedance transducer with an analog-to-digital converter. The output signal of the measurement microphone capsule is optimally adjusted to the dynamic range of the analog-to-digital converter by an impedance converter and a pre-amplifier with a very low noise level and THD. One channel of a 24 bit analog-todigital converter converts the lower level range of the capsule signal and the other channel the upper level range. A following processor combines these two level ranges to the one-channel 32 bit output signal, that represents calibrated sound pressure levels. For the use of the MV 240 no special hardware driver is necessary because it is detected automatically by the operating system and can be used with Windows, MacOS and Linux. The MV 240 is powered by the USB interface and generates internally 200 V polarisation voltage for the measurement microphone capsule that can be switched off when using electret measurement microphone capsules. Delivery in wooden case 275 mm x 90 mm x 70 mm satin nickel

Product Overview Accessories Adapter for 1/4“ microphone capsules to 1/2“ pre-amplifiers Adapter for 1“ microphone capsules to 1/2“ pre-amplifiers Measurement capacitor for 1/2“ microphone capsules Dehumidifier adapter 1/2“ Angle adapter 1/2“ Microphone holder, turnable order number: order number: order number: order number: order number: order number: Technical Specifications Analog-to-digital converter Sigma-Delta converter, 24 Bit, 192 kHz 2 level ranges USB, 1 channel, 32 Bit calibrated sound pressure values 5 V (±5%) 500 mA (at Ui = 10 Vrms) 1 Hz to 80 kHz 7 dB 160 dB 10 Vrms 20 GOhm; 0.2 pF...