Gracey & Associates   01234 708835



Gracey Logo

Sound and Vibration Instrument Hire and Calibration

Norsonic 121 Multifunction Sound Analyser


 
Norsonic 121 Sound Level Meter
 

The Nor 121 has been withdrawn from our lists, most customers prefer the Nor 118+ or Nor 140 or B&K 2250 Real Time Analysers. This information has been retained for reference purposes.

 
Nor 121 : Multi-function Analyser with one microphone n/a
 
Nor 121 : Multi-function Analyser with two microphones n/a
 

A dual channel analyser to measure both noise or noise and vibration simultaneously, building acoustics, sound insulation, environmental noise pollution measurements etc.

 
Statistical [Ln] functions of the broad band spectral networks and each 1/3 octave or 1/1 octave frequency band from 0.1 Hz to 20 kHz for all three major time constants. Up to 1400 different parameters may be recorded.
 
When used in the single channel mode the dynamic range may be set to > 120 dB.
Large paper white screen for graphical and numerical displays
 
Internal hard disk drive [4 Gbytes] with Digital Audio Recorder function for storage of raw acoustic data. The disk is also partitioned for storage of measurement results, setup menus and monitor microphone to record the operators comments.
 
With seven levels of nested reports and a timer function, the analyser can report literally thousands of different rating parameters, including overall global values and time profiles in both the time and frequency domain. The instrument can run for weeks collecting 1 second third octave spectra without filling its memory *.
 
Rechargeable batteries, multiple interfaces, PCMCIA, RS-232 and Centronics. Internal multi frequency oscillator for outdoor microphone verification, compatible with the GRAS 41AL Outdoor Microphone Systems.
 
Manufacturer's Specifications
 
Delivered with one precision microphone, 2 m preamplifier cable, windshield and a mains charger unit. Order a second microphone, extension cables and/or accelerometer kits if required.
 
Also included is the Nor 1020 software and a download cable, one set per hire. If you require extra copies, they are available at the list price.
 
See also the environmental noise survey and the annoyance kits below.
 
* The Nor 121 is a very comprehensive instrument with too many features and applications to detail here. If you need further information please visit the Norsonic web site where they have posted a 16 page leaflet on this meter - to get there, click this link.
 
We stock a wide range of accessories, order what you want and only pay for what you need
 
Popular Accessories
Nor 250 : Hemi-dodecahedron speaker - 200 W, 120 dB
Nor 260 : Power Amplifier with built-in noise generator - ideal for use with the Nor 250
Nor 280 : Power Amplifier with built-in noise generator - ideal for use with the Nor 250
Nor 1201 : Microphone preamplifier - Lemo 1B connector
Nor 1220 : Measurement microphone - free-field - 200 VDC
Nor 1251 : Sound Calibrator - class 1
Nor 1408 : Microphone preamplifier extension cable - 10 m
Nor 1410 : Microphone preamplifier extension cable -   2 m
Nor 1430 : Cable - tape, under doors, windows etc.
GRAS 41AL : Outdoor Microphone System - type 1
GA 80G1-00 : Meter stand 0.4 - 1.45 m high
GA 91E1-30 : Outdoor Noise Meter Enclosure - new 2016
Davis : Weather Station
Kestrel 2000 : Pocket Weather Meter
 
We also hire Windows laptops loaded with the Nor 1020 PC software.
 
Sound level meters and particularly microphones are very susceptible to damp, so should not be used outside, unless protected.
 

Environmental Noise Measurement Kits


Nor 121 : Environmental Noise Kit n/a
Nor 121 : Multi-function Sound Level Meter - type 1
GRAS 41AL : Outdoor Microphone System - type 1
GA 91E1-30 : Outdoor Noise Meter Enclosure - new 2016
 
We recommend you add a precision Nor 1251 calibrator (£3) if you don't already have one.
 

Noise at Work Kits


Nor 121 : Noise at Work Kit n/a
Nor 121 : Multi-function Sound Level Meter - type 1
Nor 1251 : Sound Calibrator - class 1
GA 80G1-00 : Tripod - adjustable 0.4 m to 1.45 m high, maximum load 5 kg
 
We recommend you add a precision Nor 1251 calibrator if you don't already have one.
 

Annoyance Recording - inside complainants home


Nor 121 : Annoyance Recording Kit n/a
 
A Nor 121, type 1 analyser, as described above, in a GA 91N3-00 lockable case, with batteries, tripod etc. The system can be left inside a 'complainants' house to monitor the noise or noise and vibration levels.
 
When a noise event occurs the resident pushes the Nor 262 start button, the sound is captured with the date and time on the hard disk while the Nor 121 analyser simultaneously records the level v time history and / or statistical analysis. The analyser can also be set to trigger by time or level.
 
Add a calibrator, extension cables, and an outdoor microphone if required.
 

Sound Insulation and Building Acoustics Kits and Systems


Nor 121 : Sound Insulation Analyser - dual channel n/a
 
Real time, dual channel analyser with extensive building acoustics features.
 
Features:
BSI ISO set ups for all airborne and impact insulation measurements
Built-in noise generator and reverberation time analyser
Standard deviations also calculated
Stores individual as well as averaged measurements
Background noise and microphone response corrections
Rating tables built-in
Large hard disk storage
All data may be transferred to PC in Excel and ASCII format
 
May be used as a stand-alone instrument if you have your own sound sources or build a system from the accessories below or just choose one of our kits
 
Delivered with 2 precision microphones, low noise preamplifiers, 2 m extension cables and a mains charger unit.
 
Also included is the Nor 1020 software and a download cable, one set per hire. If you require extra copies, they are available at the list price.
 

Airborne and Impact Sound Insulation Kits - order a kit and get the analyser half price

 

Airborne Sound Insulation Kits


Nor 121 : Sound Insulation Airborne Kit - dual channel n/a
Nor 121 : Dual Channel Sound Insulation Analyser - described above
Nor 250 : Hemi-dodecahedron speaker - 200 W, 120 dB
Nor 260 : Power Amplifier
Nor 1020 : Nor-Xfer download to PC software
Nor 1408 : Microphone extension cables - each 10 m long - 6 off
Nor 1430 : Cables - tape, under doors, windows etc., - 2 off
GA 80T1-00 : Tripods - light duty, for microphone/preamplifier - 2 off
 

Airborne and Impact Sound Insulation Kits


Nor 121 : Sound Insulation: Airborne + Impact Kit - dual channel n/a
Nor 121 : Dual Channel Sound Insulation Airborne Kit - as above
B&K 3207 : Tapping - Impact Machine
 
Please add a calibrator, more extension cables or any additional accessories from the list above - if required.
 
For the full range and more details see the Norsonic lists
 
* Our standard hire charges are based on a 4-day minimum period, details other options.