Acoustic Calibrator

 

SV 34  is a Class 2, single level acoustic calibrator designed to calibrate Class 2 sound level meters and noise dosimeters with1/2" microphones.

Unlike many others, the robust housing of the calibrator gives comfort of a secure grip to its users.

Similarly to other SVANTEK acoustic calibrators, the SV 34 does not require adjusting as it compensates automatically the temperature and humidity changes.

Thanks to the MEMS technology the calibrator presents the best price versus performance ration in a current noise market.

FEATURES
  • Class 2 sound calibrator IEC 60942
  • Frequency 1 kHz
  • 114 dB level
  • Internal reference MEMS microphone
  • Automatic power off
  • Dimensions 65 x 65 x 70
  • 2 x AAA batteries
  • Easy in use
  • Hand held, light weight and robust case
    (only ca 300 grams including batteries)
SV 34 Technical specifications

Calibration signal parameters

Sound Level Pressure (SPL)

114  dB or 94 dB with respect to 20  µPa in reference condition

Accuracy IEC 60942:2003 standard, Class 2
SPL accuracy ± 0.5 dB
Frequency accuracy ± 0.02 %
Total Harmonic Distortion (THD) less than 0.75 % for 114 dB level

Reference conditions

Ambient temperature

23 oC

Atmospheric pressure 101.3 kPa
Humidity 25 % ÷ 90 % RH (related SPL error ≤ ±0.1 dB)
Effective microphone  load volume 250 mm3, microphone type B&K 4134

General

Effective load volume sensitivity

0.00027 dB / mm 3

Level stabilization time typically 7 seconds, maximum 10 seconds
Calibrated microphones ½" 
Storage temperature range -25 oC ÷ +70 oC

 

 

Working conditions

Temperature range 

from -10 oC to +50 oC (related SPL error ≤  ±0.15 dB)

Atmospheric pressure range from 65 kPa to 108 kPa (related SPL error ≤  ±0.1 dB)
Humidity range up to 90 % RH   (related SPL error ≤  ±0.05 dB)

Power supply

Battery type

2 x LR03 (IEC) / AAA (ANSI) alkaline batteries

Continuous operating time

30 hours 

Stand-by period around two years (auto switch ON / OFF)
Minimal voltage requirements 2.1 V

Overall weight and dimensions

Weight

305 grams including batteries

Dimensions 65 x 65 x 70 millimetres