SV 34A Class 2 Acoustic Calibrator generates reference signal of 114 dB at 1 kHz and is 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 34A does not require adjusting as it compensates automatically for 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)

• Svantek_SV_34A_Class_2_Acoustic_Calibrator_datasheet

Specification

Calibration signal parameters:

•  Sound Pressure Level (SPL)  :  114 dB
• Accuracy to IEC 60942:2003  :  Class 2
• SPL accuracy  :  ± 0.5 dB
• Frequency accuracy  :  ± 0.2 %
• Total Harmonic Distortion (THD)  :  < 0.75 %

General Information

• Effective load volume sensitivity  :  0.00027 dB / mm3 0.00027 dB / mm3
• Level stabilization time  :  typically 15 s, max 30
• Calibrated microphones  :  1/2”
• Storage temperature range  :  -25^oC ÷ +70^oC
• CE classification  :  EN 61010-1: 2010; EN 61326-1:2006; EN 55022:2010; EN 60942:2003; 

Working Conditions

• Temperature range  :  from 0 °C to +40 °C (related SPL error ≤ ±0.2 dB)
• Atmospheric pressure range  :  from 65 kPa to 108 kPa (related SPL error ≤ ±0.10 dB)
• Humidity range  :  from 25 % to 90 % RH (related SPL error ≤ ±0.05 dB)

Reference conditions:

• Ambient temperature  :  23^oC
• Atmospheric pressure  :  101.3 kPa
• Humidity  :  30 % ÷ 80 %
• Effective microphone load volume  :  250 mm3 for microphone type B&K 4134

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 OFF)
• Minimal voltage requirements  :  2.1 V