Measurement Microphone MM 310
The 1/4” Measuring Microphone MM 310 offers facilities for the use of a high-quality prepolarized measuring microphone capsule type MK 301 E on measuring systems with IEPE inputs. Typical applications like array arrangements and covered area measuring procedures, e.g. automotive acoustics, can be taken into account.
The measuring microphone is connected to the measuring channels via a fixed microdot connector with microdot cables or usual BNC cables via a microdot-BNC adapter. The measuring microphone preamplifier has an integrated memory for microphone identification. Microphone data can be entered and read by the manufacturer/user by using the memory (IEEE P1451.4 TEDS editor).
The microphone holder MH 64 with 1/4” cone shaped adaptor is recommended for mounting. The 1/4” measuring microphone capsule accessories, e.g. windscreen etc., can be used additionally.
The measuring microphone can be calibrated with the Pistonphone type 5002 or other current sound pressure calibrators with an 1/4″ adapter.
|Transducer type||Capacitive pressure transducer, acc. WS3F (DIN EN IEC 61094-4)|
|Sensitivity||-49 dB ±1,5 dB re 1V/Pa|
|Correction free-field at 1 kHz||0 dB|
|Random incidence at 1 kHz||0 dB|
|Principal axis||microphone axis|
|5 Hz to 100 kHz (± 2 dB)|
|Polarization voltage||0 V|
|Max. SPL for 3% THD at 1 kHz||158 dB|
|Output voltage||≤ 8,2 Veff|
|Output impedance||< 100 Ohm|
|Nom. load impedance||100 kOhm|
|Current consumption||2 mA to 10 mA, nom. 4 mA|
|Transducer excitation voltage||UL 24 V DC to 30 V DC|
|Time for power up||1 min.|
|Equivalent loudness level DIN EN 60651||36 dBA|
|Influence of magnetic field 80 A/m, 50 Hz|
|Influence of vibration 1 m/s²|
|Operating temperature range ˂± 0,5 dB||-25 °C to +100 °C|
|Main ambient temperature coefficient||≤ 0,01 dB/K|
|Main ambient pressure coefficient||1×10-5 dB/Pa|
|Temperature limits||-50 °C to +100 °C|
|Humidity limits||r.H. < 100%, absence of condensation|
|Diameter||with protection grid||6,35 mm ± 0,02 mm|
|without protection grid||7,0 mm ± 0,02 mm|
|Protection grid thread||6,35 mm 60 UNS|
|Preamplifier thread||5,7 mm 60 UNS|
|Plug||Microdot UNF 10-32|
|Microphone identification memory||256-Bit 1-WireTM EEPROM (DS 2430 AP)|