NTi Audio M2230-WP User Manual

OPERATING MANUAL

MeasureMent Microphones

Contact NTi Audio at

Headquarters [phone] [e-mail]
Americas [phone] [e-mail]
China [phone] [e-mail]
Czech [phone] [e-mail]
Japan [phone] [e-mail]
South Korea [phone] [e-mail]
United Kingdom [phone] [e-mail]

www.nti-audio.com

NTi Audio is an ISO 9001:2008
certified company.

Version 1.07 / 11. August 2014

All information is subject to change without notice.
© All rights reserved.
® Minirator is a registered trademark of NTi Audio.
™ XL2, EXEL, M2230, M2230-WP, M2211, M2215, M4260 and MA220
are trademarks of NTi Audio.

Made in

Switzerland

Table of Contents

Overview Measurement Microphones ............................4

Scope of Delivery

..........................................................5

Index

Description

Integrated Preamplifier
Electronic Data Sheet
Connecting to XL2

Outdoor Microphone M2230-WP

Introduction
Assembling
Calibration

Accessories

Further Information

My NTi Audio
Notes
Calibration Certificate
Service and Repairs
Warranty Conditions
Declaration of Conformity

Technical Data Measurement Microphones

Technical Data PreAmplifier

..........................................................................7

..................................................7

...................................................7

.........................................................8

......................................9

....................................................................9

.................................................................. 11

....................................................................14

........................................................................16

..........................................................18

...............................................................18

........................................................................... 19

................................................... 19

.....................................................19

....................................................20

............................................20

............................................. 27

...................22

3

4

Overview

Overview Measurement Microphones

M2230 M2230-WP

Certified Class 1

measurement

microphone

in accordance with

IEC 61672.

Metal diaphragm.

Outdoor

Microphone

Outdoor measure­ment microphone.

Class 1 in accor-

dance with
IEC 61672.

Metal diaphragm.

M2211 M2215 M4260 MA220

General purpose

measurement

microphone.

Class 1 frequency

response.

Metal diaphragm.

Measurement

microphone
for high sound lev­els (up to 153 dB).

Class 1 frequency

response.

Metal diaphragm.

Cost-effective

class 2 measure­ment microphone
for general sound

level testing, com-

missioning and
service of audio­acoustic installa-

tions.

compatible with

1/2” pre-polarized

PreAmplifier

Microphone
preamplifier

capsules.

5

Overview

Scope of Delivery

M2230 Measurement Microphone•

M2230-WP M2230 Measurement Microphone•

consisting of

MA220 Microphone PreAmplifier

­Microphone Capsule for M2230

-

Dust Cap•
50 mm Windscreen •
Microphone-holder MH01 •
with Adapter 5/8“ - 3/8“
Operating Manual•
Individual Frequency Response Chart•

WP30 Weather Protection •

Bird spike

­90mm Wind screen

­Protection cage

­Upper body tube with allen key mount

­Lower body tube

­Footer plate with tripod mounting thread

­(incl. 3 allen screws)
Allen key

-

M2211 Measurement Microphone•

M2215 M2215 Measurement Microphone•

consisting of

MA220 Microphone PreAmplifier

­Microphone Capsule for M2211

-

Dust Cap•
33 mm Windscreen•
Microphone-holder •
with Adapter 5/8“ - 3/8“
Operating Manual•

consisting of

MA220 Microphone PreAmplifier

­Microphone Capsule for M2215

-

Dust Cap•
33 mm Windscreen•
Microphone-holder •
with Adapter 5/8“ - 3/8“
Operating Manual•

M4260 Measurement Microphone•

MA220 PreAmplifier•

Overview

33 mm Windscreen•
Microphone-holder •
with Adapter 5/8“ - 3/8“
Operating Manual•

Dust Cap•
Microphone-holder •
with Adapter 5/8“ - 3/8“
Operating Manual•

6

Description

1

2

3

Microphone Description

The plug-on measurement microphones combined with the
XL2 Analyzer form a comprehensive sound level meter and
acoustic analyzer. The microphones are 48 VDC phantom-pow­ered and include an electronic data sheet.

Integrated Preamplifier

The microphone bodies contain a preamplifier and require
48 VDC phantom power supply for operation. They combine
high dynamic range and wide frequency range with low noise.
The measurement microphones can also be connected with
an ASD Cable to the XL2 Audio and Acoustic Analyzer for mea­surements at remote locations or for reduction of acoustic re­flections.

Electronic Data Sheet

The microphones include an electronic data sheet. The Auto­mated Sensor Detection (ASD) of the XL2 Analyzer automati­cally reads this data, i.e. the microphone model and calibration
data. This promotes faster setup and ensures accurate mea­surements.

Screen connection used for

ASD technology

XLR M
Pin 2 +
Pin 3 ­Pin 1 Shield

Connection diagram of measurement microphones

2

3

1

with electronic data sheet

Microphone

2
3
1

ASD

Microphone
Capsule

7

Microphone Description

Connecting to XL2

Microphone plugs directly into the XL2

The XL2 automatically reads the electronic data sheet of the
connected microphone as follows:

Connect the measurement microphone to the XL2.•
Switch on the XL2.•

 The XL2 reads the electronic data sheet of the connected

microphone during a brief initialization process prior to the
first measurement.

Microphone Connection via the ASD Cable

The NTi Audio measurement microphones can be connected
with an ASD Cable to the XL2 Analyzer for measurements at
remote locations or for reducing acoustic reflections. The elec­tronic data sheet is transmitted via the XLR connector’s hous­ing. Do not touch this during the brief initialization period to
ensure the complete data sheet is recognized by the XL2. The
automated sensor detection does not disturb any measure­ments. You may join up to 4x ASD Cables together in series.
The ASD technology supports accurate data communication up
to a combined cable length of 20 meters (= 65 feet).

Microphone Connection via a professional Audio Cable

For distances longer than 20 meter (= 65 feet) use a high qual­ity, low capacitance standard professional audio cable. The mi­crophone sensitivity has to be entered manually into the XL2
Analyzer.

Alternatively connect the microphone first directly to the Ana­lyzer. The XL2 reads the sensitivity and remembers this value.
Afterwards connect the audio cable.

8

Outdoor Microphone M2230-WP

Outdoor Microphone

Introduction

The M2230-WP is a weather-protected microphone solution
for the XL2 Sound Level Meter allowing acquisition of environ­mental noise data in outdoor applications. The corrosion-free
polymer housing, wind screen, water-repellent membrane and
bird spike provide excellent protection from rain, wind, dust
and perching birds.

The frequency response of the M2230-WP fulfills the
IEC 61672 class 1 as well as the ANSI S1.4 type 1 require­ments for vertical sound incidence. For compliance with hori­zontal sound incidence a frequency compensation is employed
in the associated XL2 Sound Level Meter.

The M2230-WP consists of an M2230 measurement micro­phone enclosed in a WP30 weather protection kit.

Inside:
Protection
Cage with
water-repellent
membrane

Inside:
M2230
Measurement
Microphone

Bird Spike

90 mm
Wind Screen

Upper Body
Tube

Lower Body
Tube

Footer Plate with
tripod mounting
thread

9