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IEPE Microphone MP40 Series

Class 1 Free Field Microphone Set

Ultrasound Microphone

Pressure Field Microphone

MP40-Ultra

  • High SPL Microphone
  • Ultrasonic Microphone
  • Free field
  • 10 Hz to 100 kHz
  • 35 dB(A) to 160 dB
  • IEPE (BNC)
  • Supply: IEPE
  • Omnidirectional
The MP40-Ultra 1/4″ microphone enables the use of a high-quality, prepolarized MC14B microphone capsule with data acquisition (DAQ) systems featuring IEPE power supply.
 
Typical applications include measuring mining blasts and other acoustic events involving high sound pressure levels or ultrasonic phenomena up to 100 kHz.
 
The PA-01 1/2″ preamplifier is equipped with an A42 adapter (reducing 1/2″ to 1/4″), allowing for the use of prepolarized 1/2″ microphone capsules with higher sensitivity or different characteristics—such as the MK 222 E for infrasound measurements—when required.
 
Electrical connection is established via the integrated BNC connector using standard BNC cables.
 
The MI-MKPL microphone holder is recommended for mounting the microphone.
 
The measurement microphone features a Class 1 frequency response in accordance with IEC 61672.

MP40 – Set

Measurement Microphone

Class 1 WS2F IEC 61094-4

Calibrated measurement microphone set consisting of a ½” microphone capsule with PA-01 preamplifier can be connected to all measuring devices with IEPE sensor supply.

The low noise floor of less than 16 dB(A) and the linear frequency response of 1.5 Hz to 20 kHz is ideal for almost any precision measurement.

  • Class 1 and WS2F according to IEC 61094-4
  • Sensitivity 50mV/Pa
  • IEPE constant current supply 2-20 mA | Bias: 12.5 Volt 
  • Polar Pattern: Omnidirectional
  • Frequency Response: 1.5 Hz – 20 kHz
  • Acoustic noise floor 16 dB A-weighted
  • Measuring range 16 dB(A) to SPL Peak (3% Dist.) 135 dB

Scope of delivery:

  • MP40 ½” microphone capsule pre-polarized
  • PA-1 ½” IEPE mic preamp

MP40 condenser microphone capsule

Microphone Capsule
MP40 Capsule
IEC 61094-4 | WS2F
Diameter
1/2″
Frequency Range 1.5 Hz – 20 kHz
1.5 Hz – 3.5 Hz: ± 1.5 dB
3.5 Hz – 4 kHz: ± 0.5 dB
4 kHz – 20 kHz: ± 1.5 dB
Responce Type
Free field
Electrode Forming Voltage
0 V
Sensitivity (dB re 20 μPa)
50 mV/Pa (± 3 dB)
Capacitance at 250 Hz
16 pF
Maximum Sound Pressure Level
135 dB
Intrinsinc Noise Level
16 dB (A)
Operating Temperature Range
-20 °C ~ +60 °C
Operating Humidity Range
25 % ~ 90 %(RH)
Temperature Characteristics
0.01 dB/C° Maximum
Humidity Characteristics
0.001 %(RH)
Aging Drift
0.2 dB/Year
Storage Temperature Range
-20 °C ~ +60 °C
Storage Humidity Range
25 % ~ 90 %(RH)
Venting
Rear
Outer Dimensions
Ф 13.2 mm x 17.2 mm
Weight
8.65 gram