Related Manuals for Norsonic nor1256
Summary of Contents for Norsonic nor1256
- Page 1 INSTRUCTION MANUAL 1256 Class 1 sound calibrator Complies with IEC 60942 class 1...
- Page 2 Nor1256 - May 2017 IM1256_Ed2R3En Norsonic is a registered trademark of Norsonic AS. All other brand or product names are trademarks or registered trademarks of their respective companies. Every effort has been made to supply complete and accurate in- formation. However, Norsonic AS assumes no responsibility for the use of –...
- Page 3 1256 Class 1 Sound Calibrator...
- Page 5 Nor1256 Instruction Manual Introduction The Sound Calibrator Nor1256 is a small, battery The calibrator has been designed to serve one- operated sound source for the calibration and check inch and smaller microphones and sound level of sound measuring instruments. The specifications meters equipped with such microphones.
- Page 6 Nor1256 Sound Calibrator Using the sound calibrator • Press ON/OFF button. Wait for the LED above the “dB-button” to change from red to green. The • Switch on the sound level meter to be calibrated level and frequency is indicated in the display of and let the meter stabilize before calibration.
-
Page 7: Sound Pressure Levels
LED turns on). originally was developed to mimic our auditory organ and is specified in the standards for a sound level meter. The stated levels for calibrator Nor1256 are all un-weighted levels for both frequencies. Power off! The automatic power off, may be deac-... - Page 8 – different effective load volume. Due to its working especially at higher frequencies. For a ½”microphone principle, the Nor1256 has a large effective coupler (type WS2F) the pressure increase will typically be volume. The variations in sound pressure level due 0,1 dB at 1 kHz.
- Page 9 Nor1256 Instruction Manual Correction for different Microphones Adjustment level/dB Adjustment level/dB Supplier Type of microphone 250 Hz 1000 Hz Brüel & Kjaer 4144, 4134, 4166, 4192 94,0 bzw. 114,0 94,0 bzw. 114,0 Brüel & Kjaer 4145 94,0 bzw. 114,0 93,7 bzw. 113,7 Brüel &...
- Page 10 Nor1256 Sound Calibrator • Place the reference microphone in the coupler and • While the display is blinking, press Hz to increase select the appropriate frequency. the reading or dB to reduce the reading. • Press the calibrator button for about one second •...
-
Page 11: Main Specification
Nor1256 Instruction Manual Main specification: Sound calibrator class 1 according to IEC 60942 Ed. 3 (2003) and ANSI/ASA S1.40-2006 (R2011). Power supply: In addition, the calibrator displays: Temperature, Air Battery operated: two LR03 alkaline batteries (AAA-size, pressure and Humidity. The temperature and humidity also classified as 24A by ANSI/NEDA). -
Page 13: Declaration Of Conformity
LVD- and EMC-Directive. The direction of maximum sensitivity/emission is with the display facing the antenna. This product has been manufactured in compliance with the provisions of the relevant internal Norsonic production standards. All our products are tested individually before they leave the factory. Calibrated equipment—traceable to national and international standards—has been used to carry out these tests. - Page 16 P.O. Box 24 N-3421 Lierskogen Norway Norsonic AS supplies a complete range of instrumentation for acoustics – from sound calibrators, micro- Tel: +47 3285 8900 phones & preamplifers; via small handheld sound level meters to advanced, yet portable, real time analysers, Fax: +47 3285 2208 but also building acoustics analysers and complete community, industry and airport noise monitoring systems.