The 1/4” measuring microphone capsule MK 301 E is designed for acoustic measurements in research, development and industry and is also used in building acoustics and audiometry, among other things.
WS3F according to IEC 61094-4
Frequency response 5 Hz to 100 kHz with MP30 microphone amplifier
Sensitivity 3,5 mV/ Pa
IEPE 4 – 20 mA / 18V – 30V
Free Field
Sound pressure level up to 168 dB
Range 35dBA to 168dB
Pre-polarized
The measuring microphone capsule MK 301 is suitable for class 1 sound level meters according to IEC 61672.
MK 301 E | WS3F according to IEC 61094-4 |
|---|---|
Diameter | 1/4″ |
Frequency Range | 5 Hz … 100 kHz (± 2 dB) |
Responce Type | Capacitive pressure transducer |
Electrode Forming Voltage | 0 V |
Sensitivity (dB re 20 μPa) | 3.5 mV/Pa (± 3 dB) |
Capacitance at 1 kHz | 4.5 pF |
Max. SPL for THD ≤ 3 % at 1 kHz | 168 dB peak |
Intrinsinc Noise Level | 36 dB (A) |
Operating Temperature Range | -20 °C ～ +100 °C |
Operating Humidity Range | 25 % ～ 90 %(RH) |
Storage Humidity Range | 25 % ～ 90 %(RH) |
Venting | Rear |
Outer Dimensions with protection grid | Ф 7 mm x 9.7 mm ± 0,02 mm |
Weight | 2 gram |
MP30 | Preamplifier |
|---|---|
Frequency Response
(re. 250 Hz) | 0.1 Hz ~ 10 Hz ± 3 dB 10 Hz ~ 20 kHz ± 0.1 dB 10 Hz ~ 200 kHz ± 0.2 dB |
Gain | -0.1 dB |
Intrinsic Noise (20Hz ~ 20kHz) | <5 μV A-weighting |
Distortion(THD) @1kHz
1 V | <0.1% |
Output Impedance | ＜50Ω |
Max. Output Voltage | 5 V RMS |
IEPE Power Voltage | 18 V ~ 30 V |
IEPE Current | 2 mA ~ 20 mA |
Polarization Voltage | 0 V |
Dimensions | Ф12.7mm × 70 mm |
Weight | <20 g (cable not included) |
Operating Temperature | -20°C ~ + 60°C |
Humidity | 25 %～ 90 %(RH) |
Atmospheric Pressure | 65 kPa～108 kPa |
Connector Type | BNC |
Thread for Microphone Capsule Mounting | 11.7 mm-60 UNS |
