Norsonic nor1216 Manual de usuario
INSTRUCTION
MANUAL
Outdoor microphone
nor1216
Outdoor microphone
nor1216
Nor1216 – User Guide
Im1216_1Ed1R3En – October 2016 edition
Norsonic is a registered trademark of Norsonic AS.
Every effort has been made to supply complete and ac-
curate information. However, Norsonic AS assumes no
responsibility for the use of – or for the consequential dam-
age resulting from the use of – this information and/or the
instrumentation described herein. Furthermore, Norsonic AS
assumes no responsibility for any infringement of the intel-
lectual property rights of third parties, wherever applicable,
which could result from such use.
Norsonic AS reserves the right to amend any of the informa-
tion given in this manual in order to take account of new
developments.
If you wish to communicate with us, please feel welcome
Our address is:
Norsonic AS, P.O. Box 24, N-3421 Lierskogen Norway,
Find us on the web: www.norsonic.com
Tel: +47 3285 8900
Fax: +47 3285 2208
E-mail: [email protected]
Copyright © Norsonic AS 2012
All rights reserved
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Norsonic Nor1216
Instruction Manual
v
Contents
Chapter 1 Introduction ......................................................................................................... 1
Chapter 2 Assembling .......................................................................................................... 2
Mounting on a mast ....................................................................................................................... 3
Grounding and lightning protection ............................................................................................ 3
Chapter 2 Microphone calibration....................................................................................... 4
Chapter 3 Technical description.......................................................................................... 5
Electrical description ..................................................................................................................... 6
System check ................................................................................................................................. 8
Frequency response ...................................................................................................................... 9
Self-noise ........................................................................................................................................10
Cables and cable length ..............................................................................................................11
Directional response .....................................................................................................................12
Frequency response .....................................................................................................................13
Self-noise and wind ...................................................................................................................... 14
Chapter 4 Connecting the Nor1216 to Sound Analyser Nor140 and
Sound & Vibration Analyser Nor150 ................................................................15
Connecting to Nor140 ........................................................................................................... 16
Connecting to Nor150 ........................................................................................................... 17
Chapter 5 Maintenance........................................................................................................18
vi Content
Chapter 6 Specifications .....................................................................................................19
Mounting direction ........................................................................................................................ 19
Acoustic performance ..................................................................................................................19
General ....................................................................................................................................19
Frequency response ..............................................................................................................19
Directional response ..............................................................................................................19
General ...........................................................................................................................................19
Conformity ..................................................................................................................................... 20
Protection provided by the enclose ........................................................................................... 20
Accessories and spare parts ...................................................................................................... 20
Outdoor microphone
nor1216
1
Norsonic Nor1216
Instruction Manual
1
Introduction
The outdoor microphone Nor1216 is a measurement
microphone for all-weather conditions. It is intended for
temporary as well as permanent outdoor applications.
The microphone contains elements for protecting the
microphone cartridge from rain and snow, dust and
insects, satisfying IP 55 requirements.
Further, compared to a standard measurement micro-
phone, the Nor1216 improves the measurement accu-
racy by reducing the wind noise and by improving the
directional response for sound from different directions.
Combined with a suitable sound level meter instrument
including a frequency response correcting function,
the Nor1216 satisfy Class 1 specification requirements
according to IEC61672-1 and similar national standards
for a sound level meter class 1.
The microphone is intended for vertical mounting only
since the act of gravitation forms a part of the rain
protection system. The reference direction may,
however, be selected to be vertical or horizontal based
on the applied frequency response compensation in
the sound level meter.
The outdoor microphone may be calibrated with
a normal sound calibrator suitable for ½” working
standard microphones (WS2) and without the need for
extra accessories. Access to the microphone cartridge
is easily gained by dismounting the upper part of the
outdoor microphone.
The base of the Nor1216 is made of an electrical insulat-
ing material. The microphone body will be fully insulated
from the mounting mast thereby reducing pick-up of
electrical hum and noise.
For verification of proper operation, the microphone is
equipped with a system check facility, where an electri-
cal signal applied on one of the terminals are returned
after passing through the complete signal chain, thus
verifying proper operation of the microphone cartridge,
preamplifier and microphone cable.
The Nor1216 is equipped with the standard 7-pin Lemo
connector for microphone preamplifiers. However, the
current consumption has been increased in order to
raise the temperature above the ambient. Nor1216
is mainly designed to be used with the Nor140 and
Nor150 Sound Analyser . These instruments have the
requested frequency compensation and deliver the
required current.
Please note that Nor140 instruments with serial number
lower than 1405079 may need to be upgraded in order
to deliver the required current. Contact your supplier for
further information.
2Chapter 2
Assembling
Assembling
The outdoor microphone Nor1216 is shipped fully as-
sembled. However, in order to mount the microphone
cable the unit has to be opened.
Depending on the application, you will need a mast
or tripod for mounting the microphone system and
possibly devices for proper grounding and lightning
protection, see below.
We recommend cable type Nor1408A, which
comes in standard lengths of 5, 10, 15, 20, 30 and 50
metres – other lengths are available on request. This
cable is Teflon®-insulated and hence absorbs very lit-
tle water, which is important to retain high insulation in
all weather conditions. The mantle is made of polyure-
thane to ensure a robust cable, yet flexible at low tem-
peratures. If you need weather-protected connectors,
we recommend cable type Nor1485.
Unscrew and remove the upper part of the microphone
consisting of birdspike and windscreen as one unit.
Do not remove the windscreen from this upper part as
this may destroy the weather protection and alter the
acoustic performance.
Pull up the assembly of microphone cartridge and
preamplifier: See picture on this page. This assembly
is mounted to the base unit by the friction of an O-ring
and may be pulled straight up.
If the microphone is to be mounted on a mast,
mount the base unit and let the microphone cable
go through the base unit. Connect the cable to the
Birdspike
Wind, dust and
water protection
Upper part
Microphone cartridge
Nor1227 or Nor1225
Microphone preamplifier
Nor1209A
Base
Connector/cable
Optional tripod adaptor
with tension relief
O-rings
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