The measurement microphones are optimized for a flat, free-field response in the frequency range 5 Hz – 20 kHz. Models for acoustic measurements of up to 155 dB are available.
All microphones are omni-directional and 48V phantom powered. The Sound Level Meter microphones include an electronic data sheet. The Automated Sensor Detection (ASD) of the Analyzer automatically reads this data sheet, and recognizes the microphone model, sensitivity and calibration data. This ensures accurate measurement results.
Omni-directional, free-field microphone
Class 1 – Certified Precision Microphone
Phantom power 48 VDC
Frequency range 5 Hz – 20 kHz
Overview
Type
Classification IEC 61672 ANSI S1.4
Microphone Capsule
Intrinsic noise typical
Maximum sound pressure level @ distortion factor 3%, 1 kHz
Typical Applications
M2230
Class 1 / Type 1
Certified
1/2" detachable
16 dB(A)
137 dBSPL
Noise Measurements
Building Acoustics
Legal Applications
M2340
Class 1 / Type 1
Certified
1/2" detachable
17 dB(A)
138 dBSPL
Noise Monitoring
with system self-test (CIC)
Legal Applications
Measurement Microphones for the XL2 / XL3 Sound Level Meter
The microphones are 48 V phantom powered and include an electronic data sheet. The Automated Sensor Detection (ASD) of the Analyzer automatically reads this data, i.e. the microphone model and calibration data. This promotes faster setup and ensures accurate measurements.
The microphone bodies contain the preamplifier. They combine high dynamic range and wide frequency range with low noise. These measurement microphones connect via the ASD Cable to the Sound Level Meter e.g. for measurements at remote locations or to reduce acoustic reflections. The types M2230, M2211 and M2215 are formed by a combination of preamplifier MA220 and a dedicated microphone capsule. The M2340 is formed by the preamplifier MA230 and the microphone capsule.
Features:
Omni-directional, free-field microphone
Phantom power 48 VDC
Electronic data sheet installed
Frequency range 5 Hz – 20 kHz
Individual frequency response available as Excel-data
Optional calibration certificate
Configurations
Configurations Measurement Microphones
M2230
Certified class 1 measurement microphone according to IEC 61672 with metal diaphragm.
M2340
Certified class 1 measurement microphone according to IEC 61672 with metal diaphragm; system self-test (CIC).
MA220
Microphone preamplifier compatible with 1/2” pre-polarized capsules.
MA230
Microphone preamplifier compatible with 1/2” pre-polarized capsules; system self-test (CIC).
Accessoires
Weather Protection
Protect your measurement microphone from rain, wind, dust and perching birds with a professional outdoor weather protection kit. The corrosion-free…
The calibration certificate lists the individual product data with serial number. The calibration and adjustment procedures follow the documentation and…
As a research laboratory invested in supporting communities through real time noise monitoring, I am very happy to exclusively use NTi instruments. Not only are the robust, easy to use, and provide high quality data, the customer service is outstanding and their team will work with you to find the most cost effective and appropriate solutions needed for problems ranging from easy to difficult.
Erica D. Walker MSc, ScD, RGSS Assistant Professor of Epidemiology, Brown University School of Public Health
I’ve been using the XL2 for over 15 years for short-term and long-term measurements in all kinds of indoor and outdoor environments all across the country. The meter gets me what I want, when I need it. It’s not only the best value for acoustical measurements, it’s the best tool period. I bet my company and reputation on XL2 results and it has not let me down. You would be crazy not to consider adding NTi instruments to your toolkit.
Herb Singleton, P.E., INCE Bd. Cert., President, Cross-Spectrum Acoustics
We at Constructure GmbH use two XL3 sound level meters for noise monitoring during demolition work. We are very satisfied with these highly user-friendly instruments, the online monitoring in the MeasurEye Cloud, the good advice and qualified support. Factory calibrations at NTi Audio are also handled very smoothly and without complications.
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