Micw I236l Professional Class 2 Microphone User Manual (+ PDF)

The reference microphone for calibration is traceable from the
National Institute of Metrology (NIM).
Calibration is performed in compliance with ISO9001:2008.
Measurement uncertainty is +/-0.30dB (95% confidence level with
a coverage factor of 2).
Frequency response is measured by a comparison method
BSWA-III-RD01-0013.
Sound Level meter Class 2 (IEC61672-3) was certified with
NoiseLab App by Scantek USA and NIM Lab.

1. INTRODUCTION

Welcome to the MicW i-Series of professional microphones. MicW
has been designing and manufacturing high-quality microphones for
testing, measuring, and studio recording for over 10 years. The
expertise in diaphragm technology allows MicW to provide
professional products for audio applications.

2. SAFETY INSTRUCTION

The microphone comes with a pre-polarized capsule, which is
tested in extreme temperatures and humid environments for more than
24 hours. It is designed to operate from -20 to 50 and humidity up
to 95%.

3. Power Supply

The i236L does not require an additional battery for power.

4. APPLICATIONS

MicW i236L is a 1/2 prepolarized free-field digital measurement
microphone. It has an omni-directional pattern. It is an ideal
choice for iPhone, iPad mobile (iOS Lightning or Type C connectors)
devices as an external microphone. The i236L is developed based on
BSWA MPA436 array microphone, which is widely used in the aerospace
and automotive industry.

5. FREQUENCY RESPONSE

Typical Frequency Response:

Frequency (Hz)	FRes (dB)
16	0.3
32	0.7
64	0.5
125	0.2
250	-0.1
500	0.0
1000	0.0
2000	0.0
4000	0.1
8000	1.4
16000	0.2
20000	-3.7

6. MICROPHONE INSTALLATION

Simply plug the i236L into your lightning connector of the
iPhone, iPad device.

7. WARRANTY POLICY

MicW Audio warrants that its Products will be free from defects
in materials and workmanship for one (1) year from the date of
purchase by the original purchaser.

8. CE MARKING

The MicW i236L microphones conform with the relevant CE mark
directives approved by the European Commission.

9. SPECIFICATIONS

Microphone: i236L
Type: Electret Condenser
Capsule Diameter (front): 13.2mm
Capsule Diameter (back): 10.0mm
Total Length: 46.6 mm
Principle of Operation: Free-field
Directivity: Omni
Sensitivity: The analog sensitivity of the capsule
Correction Factor in MID Range
Equivalent Noise Level: 23.0 dB(A)
Upper Dynamic Limit: 119.0 dB
Frequency Range: 20~20,000Hz (complied with IEC 61672 Class 2
requirements at reference conditions)
T.H.D: < 3% at 119dB SPL
Operating Temperature: -20 ~ 50
Power Source: Plug and Play
Polarization Voltage: 0 V
Weight: 13.9g
Connector: Lightning Connector

10. PACKING LIST

11. SOUND LEVEL METER APPLICATION

The system of i236L microphone and NoiseLab App on iOS device
meet the requirement and pass the certification of IEC61672 Class 2
sound level meter.

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I236L User’s Manual

i236L Professional Class 2 Microphone
www.micwaudio.com

CALIBRATION REPORT

Product Information
Model No: i236L Serial No: Description: 1/4″ Free Field Digital Microphone with Lightning Connector

Calibration Data

Sensitivity:

dBFS

NoiseLab Correction: dB

Technician:

Date: yyyy/mm/dd

TEST

ENVIRONMENTAL

CONDITIONS

Temperature: 25

Humidity:

65%

Pressure: 101.3kPa

Notes: 1. The refernce microphone for calibratiaon is traceable from the Natioinal Institute of
Metrology(NIM). 2. Calibration is performed in compaliance with ISO9001:2008. 3. Measurement uncertainty is +/-0.30dB (95% confidence level with a coverage factor of

2). 4. Frenency response is measured by a comparison method “BSWA-III-RD01-0013″. 5. Sound Level meter Class 2( IEC61672-3) was certified with NoiseLab App by Scantek
USA and NIM Lab.
1. INTRODUCTION
Welcome to the MicW i-Series of professional microphones. MicW has been designing and manufacturing high quality microphones for testing, measuring and studio recording for over 10 years. The expertise in diaphragm technology allows MicW to provide professional products for audio applications.
2. SAFETY INSTRUCTION
The microphone come with a pre-polarized capsule, which is tested in extreme temperatures and humid environments for more than 24 hours. It is designed to operate from -20 to 50 and humidity up to 95%.
3. Power Supply
The i236L does not require an additional battery for power.

4. APPLICATIONS
MicW i236L is 1/2″ prepolarized free-field digital measurement microphone. It has omni-directional pattern. It is an ideal choice for iPhone, iPad mobile (iOS Lightning or Type C connectors ) devices as external microphone. The i236L is developed based on BSWA MPA436 array microphone which is widely used in aerospace and automotive industry.
5. FREQUENCY REPONSE
Typical Frequency Response.

Frequency (Hz)
16 32 64 125

FRes (dB) 0.3 0.7 0.5 0.2

Frequency Hz)
250 500 1000 2000

FRes (dB) -0.1 0.0 0.0 0.0

Frequency (Hz)
4000 8000 16000 20000

FRes (dB) 0.1 1.4 0.2 -3.7

6. MICROPHONE INSTALLATION Simply plug the i236L into your lightning connector of the iPhone, iPad device.
i236L matched with NoiseLab software on iPhone 14 Pro.
7. WARRANTY POLICY MicW Audio warrants that its Products will be free from defects in materials and workmanship for one (1) year from the date of purchase by the original purchaser. 8. CE MARKING The MicW i236L microphones conform with the relevant CE mark directives approved by the European Commission.

9. SPECIFICAITONS

Microphone i236L

Type

Electret Condenser

Capsule Diameter(front)

13.2mm

Capsule Diameter(back)

10.0mm

Total Length

46.6 mm

Principle of Operation

Free-field

Directivity

Omni

Sensitivity

– 17.19 ± 3.0 dBFS

The analog sensitivity of the capsule

28.0 dB re 1V/Pa, or 39.8mV/Pa

Correction Factor

-5.11 ±3.0 dB tested with NoiseLab APP

in MID Range

Equivalent Noise Level

23.0 dB(A)

Upper Dynamic Limit

119.0 dB

Frequency Range

20~20,000Hz (complied with IEC 61672

Class 2 requirements at reference

conditions)

T.H.D

< 3% at 119dB SPL

Operating Temperature

-20 ~ 50

Power Source

Plug and Play

Polarization Voltage

0 V

Weight

13.9g

Connector

Lightning Connector

10. PACKING LIST
· One piece of i236L microphone · One windscreen for i236L microphone · No printed usermanual. Please visit http://manual.bswa.com.cn for the product information

11. SOUND LEVEL METER APPLICATION The system of i236L microphone and NoiseLab App on iOS device meet the requirement and pass the cetification of IEC61672 Class 2 sound level meter.
Requirements:
iOS version 10.0 or higher i236L microphone NoiseLab App STEP 1: Search” NoiseLab” in App store on your iOS device and install the app. STEP 2: Plug i236L into the iPhone, iPad, then launch NoiseLab STEP 3: Go to the Calibration menu and change the Correction according to the
CALIBRATION REPORT. Or calibrate the system with a standard microphone calibrator.

a member of BSWA Technology Ltd. Unit 1003, North Ring Center No.18 Yumin Road, Xicheng District, Beijing 100029, China Phone: +86-10-51285118 Fax: +86-10-82251626 Email: [email protected] Web: www.micwaudio.com
MicW microphones Product: features and specificaitons are subject to change without notice