USER MANUAL
SV 33B
ACOUSTIC CALIBRATOR
Warsaw, 2019-03-20
Rev. 1.01
Copyright ©
2019 SVANTEK.
All rights reserved.
Страница 1: ...USER MANUAL SV 33B ACOUSTIC CALIBRATOR Warsaw 2019 03 20 Rev 1 01 Copyright 2019 SVANTEK All rights reserved...
Страница 2: ...3 1 1 Calibration 3 1 2 Accuracy of calibration 3 2 Acoustic calibrator SV 33B 5 2 1 General description 5 2 2 Using the calibrator 6 2 2 1 Button functions 6 2 2 2 Indicators 7 2 3 Replacing the batt...
Страница 3: ...libration factor 1 2 Accuracy of calibration Measuring equipment and measurement methods have deviations The measured variable is affected by environmental conditions temperature and humidity as well...
Страница 4: ...f 1kHz Class Type LS 1 2 Sound level meters dB 0 7 1 0 Acoustic calibrators dB 0 10 0 25 0 40 As shown in Table 1 the acoustic calibrator has unambiguously lower tolerances than the sound level meter...
Страница 5: ...form of 1 kHz frequency is digitally generated and feeds the loudspeaker The sampled signal from the reference piezoresistive sensor indicates the level of currently generated signal in a feedback loo...
Страница 6: ...When the SV 33B is either ON or OFF pressing the button over 10 seconds and releasing it will cause full reset of the system Normally this function is not necessary It has been implemented in the case...
Страница 7: ...lly adjusted to the desired level During that process 114 dB diode blinks with a frequency of approx 2 Hz The device is ready when this diode is on with a continuous light Note Calibration should not...
Страница 8: ...crew four fixing screws with your fingers c take off the cover and remove discharged batteries d put two new batteries in place of the discharged ones with polarization as indicated on the printed boa...
Страница 9: ...9 SV 33B User Manual g put on the rubber cover...
Страница 10: ...7 sec max 10 sec Microphone dimensions 13 2 mm or with reduction adapter SA 30 Storage temperature range 25 C do 70 C 13 F to 158 F CE classification EN 61010 1 2010 EN 61326 1 2013 EN 60942 2003 Work...
Страница 11: ...the axis of the calibrated microphone in the acoustic chamber The lowest level of noise immunity is parallel to the axis of the calibrated microphone in the acoustic chamber Other connections with the...