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SV 30A Class 1 Acoustic Calibrator

SV 30A Class 1 Acoustic Calibrator operates on two levels 94 dB and 114 dB. The design of this calibrator is based on the dedicated ½ condenser microphone and microprocessor controlled signal source including digital static pressure and temperature compensation. These both features assure excellent stability of the calibration levels and their frequency. The SV 30A calibrator offer exceptional price versus performance ratio on the world market. With the SV30A acoustic calibrator it is possible to calibrate the ½ microphones and ¼ microphones using SA30 diameter reduction.

FEATURES

  • Class 1 sound calibrator IEC 60942
  • Frequency 1 kHz
  • 94 dB or 114 dB levels
  • PTB type approval
  • ½" internal reference condenser microphone
  • Microphone presence detection
  • Automatic power on/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 30A Acoustic Calibrator Specification 

Calibration signal parameters:

Sound Pressure Level (SPL) 114 dB or 94 dB
Accuracy to IEC 60942:2003 Class 1
SPL accuracy ± 0.3 dB
Frequency accuracy ± 0.2 %
Total Harmonic Distortion (THD) < 0.25 % for 94 dB
< 0.75 % for 114 dB level
 

General Information

Effective load volume sensitivity 0.00027 dB / mm3 0.00027 dB / mm3
Level stabilisation time typically 7 s, max 10 s
Calibrated microphones 1/2” and 1/4” with SA 30 adapter
Storage temperature range -25oC ÷ +70oC
CE classification EMC: EN 50081-1, EN 50082-1 EN 61010-1
Safety: EN 61010-1:2001
 

Working Conditions

Temperature range from -10 °C to +50 °C
(related SPL error ≤ ±0.15 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 40 hours for 94 dB level
30 hours for 114 dB level
Stand-by period around two years
(auto switch ON / OFF)
Minimal voltage requirements 2.1 V

 

*Continuous product development and innovation are the policy of our company. Therefore, we reserve the right to change the specifications without prior notice.
 
 


 
 

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