Low Noise Microphone Set with IEPE USB Interface

Low Noise Microphone

MMS 214

Low noise microphone MMS 214 has a particularly low inherent noise level and is designed for acoustic measurements of low sound pressure levels close to the threshold of human hearing.

The electrical connection is via a BNC cable to devices with IEPE supply.

The microphone preamplifier internally generates the polarization voltage for the externally polarized microphone capsule.

The measurement microphone is equipped with a build-in memory for microphone identification (TEDS acc. IEEE 1451).

Sensitivity: 320 mV/Pa
Free-field
2 Hz to 20 kHz
6.5 dBA to 104 dB
IEPE (BNC)
Microphone power supply: IEPE
Class 1 – WS2F – IEC 61094-4
TEDS acc IEEE 1451

MMS214 + Plug.n.DAQ Lite

Measuring Range 12 dbA to 100 dBA

Low-noise microphone set consisting of a 2-channel IEPE USB sensor interface and the MMS 214 measuring microphone.
The Plug.n.DAQ Lite USB measurement module is designed for high sensitivity with a measurement range of 12 dbA to 100 dBA.

MMS214 + ZOOM UAC 232

Measuring range 6.5 dbA to 100 dBA

Low-noise microphone set consisting of a 2-channel IEPE USB sensor interface and the MMS 214 measuring microphone.The USB measurement module ZOOM UAC-232 offers extremely low self-noise of -9 dB in relation to a microphone sensitivity of 320 mV/Pa (Ref. 20 µPa).

I would like to take this opportunity to provide a brief introduction to the ARTA software, which includes Plug.n.DAQ Lite MMS 214 Low Noise Microphone and Microphone Calibrator.

In this demonstration, I will be showing the calibration of the measurement chain.

If you are looking for a FFT analysis software that will allow you to turn your PC into a full-featured measurement instrumentation, Visual Analyzer is the right tool for you!

The best part is that there is no need to install any additional or new hardware.

You can simply use the sound card in your PC to start measuring sound.

With the Visual Analyzer, it is now even easier to analyze sound signals.

Besides, you don’t have to worry about licensing, since the program is already available for everyone.

Transducer type	Capacitive pressure transducer
Frequency range of the free field response	±2 dB 2.5 Hz to 16 kHz ±3 dB 2.0 Hz to 20 kHz
Sensitivity	320 mV/Pa
Sensitivity re 1 V/Pa	-10 dB ± 2.5 dB
Max. SPL for 3% THD at 1 kHz	Peak, 20 Hz to 5 kHz 116 dB Peak, 20 Hz to 20 kHz 104 dB RMS, 20 Hz to 5 kHz 113 dB RMS, 20 Hz to 20 kHz 101 dB
Inherent noise	6.5 dBA
Output impedance	<100 Ohm
Current consumption	4 mA to 20 mA
Power supply voltage	24 V DC to 30 V DC
Temperature range, operation	-20 °C bis +60 °C
Temperature range, storage	-40 °C to +80 °C
Temperature coefficient at 250 Hz	≤0.01 dB/K
Static pressure coefficient at 250 Hz	-0.00001 dB/Pa
Temperature limits	-50 °C to +100 °C
Humidity limits	r.H. <100%, absence of condensation
Diameter	without protection grid 12.7 mm ± 0.05 mm with protection grid 13.2 mm ± 0.05 mm
Length	135 mm
Weight	250 g
Plug	BNC
Microphone identification memory	256-Bit 1-WireTM EEPROM (DS 2430 AP)

Model	1/2″ IEPE Microphone Sytems Class 1 WS2F & WS2D	Price
MicCAL	Microphone Calibration Fee for all ROGA Instruments microphones. After successful factory calibration, the microphone is returned to the customer with our factory calibration certificate.	155 $
WS-RG-80	1/2″ measurement microphone wind screen Ø 80 mm diameter	38 $
MP30	MP30 Microphone Set Prepolarised Microphone Capsule with Microphone Preamplifier 1/2″ IEPE Free-field microphone Sensitivity 40 mV/Pa constant current supply 2- 20mA BNC connection Polar pattern: omnidirectional Frequency response 4 Hz ~ 10 Hz ± 1.5 dB 10 Hz – 4 kHz: ± 0.5 dB 4 kHz – 20 kHz: ± 2.5 dB free field, corresponds to class 1 including individual Calibration sheet (sensitivity & frequency response) Measuring Range: 16 dB(A) to 135 dB HS Code 85181000	854 $
MP30-231	MP30-231 Microphone Set Prepolarised Microphone Capsule with Microphone Preamplifier 1/2″ IEPE difussefield microphone Sensitivity 50 mV/Pa constant current supply 2- 20mA BNC connection Polar pattern: omnidirectional Frequency response 3.5 Hz – 16 kHz: ± 2 dB including individual Calibration sheet (sensitivity & frequency response) Measuring Range: 15 dB(A) to 156 dB HS Code 85181000	1380 $
MP30-Infra	1/2″ microphone for infrasonic low frequency applications WS2F according to IEC 61094-4 Free field 0.5 Hz to 20 kHz 15 dBA to 135 dB pre-polarized 1/2″ microphone preamplifier MP30 included HS Code 85181000	1446 $
MP40	MP40 Set 1/2 ” condenser microphone WS2F (DIN IEC 61094-4) Frequency range: 1.5 Hz – 3.5 Hz: ± 1.5 dB 3.5 Hz – 4 kHz: ± 0.5 dB 4 kHz – 20 kHz: ± 1.5 dB Free-field Including preamplifier PA-01 Dynamic range 16 dB(A) -135dB IEPE Constant Current powered Sensitivity: 50 mV / Pa Download MP-40 PDF HS Code 85181000	1236 $
MM210	1/2″ microphone for general applications WS2F according to IEC 61094-4 Free field 50 mV/Pa 3.5 Hz to 20 kHz 15 dBA to 146 dB pre-polarized 1/2″ microphone preamplifier MV210 included HS Code 85181000	1250 $
MMS 214	Low noise microphone MMS 214 has a particularly low inherent noise level and is designed for acoustic measurements of low sound pressure levels close to the threshold of human hearing HS Code 85181000	2950 $
1/2″ Microphone capsules	1/2” measuring microphone capsules with different properties. From infrasound to ultrasonic models HS Code 85181000	–

Model	USB Microphone Systems Class 1 WS2F	Price
	ROGA Instruments products are free from planned obsolescence, technically accessible, durable and repairable.
iSV1611-Infra	1/2″ USB microphone for infrasound applications WS2F according to IEC 61094-4 Free field 1 Hz to 20 kHz 15 dBA to 135 dB pre-polarized 1/2″ USB microphone preamplifier iSV1611 included HS Code 85181000	1625 $
iSV1611-Ultra	1/4″ USB microphone for ultrasonic applications MK 301 E Microphone Capsule WS3F according to IEC 61094-4 Free field 5 Hz to 80 kHz 35 dBA to 168 dB pre-polarized 1/2″ USB microphone preamplifier iSV1611 included HS Code 85181000	1715 $

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