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Class 2 Sound Calibrator SV 34B Product Page
Acoustic Calibrators > SV 34B
Noise Dosimeter

Class 2 Sound Calibrator SV 34B

5.0 (20 Reviews)
The SV 34B is a compact Class 2 acoustic calibrator developed for routine calibration and functional checks of sound measuring instruments. Designed in accordance with IEC 60942 standards, it provides a stable 114 dB calibration level suitable for general noise measurement applications. This calibrator features microprocessor-driven signal correction and internal sensors for precise automatic adjustment... ensuring dependable performance in professional sound measurement applications.
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The SV 34B is a compact Class 2 acoustic calibrator developed for routine calibration and functional checks of sound measuring instruments. Designed in accordance with IEC 60942 standards, it provides a stable 114 dB calibration level suitable for general noise measurement applications.

Optimised for portability and ease of use, the SV 34B delivers dependable performance with controlled tolerance and low distortion in typical field environments. It is well suited for users who require a reliable and cost-effective calibration solution for regular sound level meter verification.


Sound measurements features
Sound Pressure Level (SPL) 114 dB
IEC 60942:2003 Accuracy Class 2
SPL Tolerance ± 0.5 dB
Frequency Tolerance ± 0.2 %
Total Harmonic Distortion (THD) < 0.75 %
Effective Load Volume Sensitivity 0.00027 dB / mm³
Level Stabilisation Time SV 36: typically 10 s, max 25 s
SV 33B: typically 15 s, max 30 s
SV 34B: typically 15 s, max 30 s
Calibrated Microphones 1/2” and 1/4”
with SA 30 adapter
Storage Temperature Range -25 °C ÷ +70 °C
CE Classification EN 61010-1: 2010
EN 61326-1: 2013
IEC 60942: 2017
Temperature Range 0 °C to +40 °C
(related SPL error ≤ ±0.2 dB)
Atmospheric Pressure Range 65 kPa to 108 kPa
(related SPL error ≤ ±0.10 dB)
Humidity Range 25 % to 90 % RH
(related SPL error ≤ ±0.05 dB)

Other Features & Highlights

  • Generates a 114 dB reference tone at 1 kHz, ideal for calibrating Class 2 sound level meters and noise dosimeters with ½″ microphones.
  • Equipped with integrated reference sensors to continuously monitor sound level, pressure, and temperature for automated signal regulation.
  • Features a durable, ergonomic housing that provides secure handling and reliability in field environments.
  • Microprocessor-driven feedback system maintains consistent and accurate calibration performance, even under changing ambient conditions.

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Related Products

Applications

Occupational Noise

Occupational Noise

Calibration of Class 2 sound level meters and noise dosimeters

An acoustic calibrator generates a defined acoustic pressure level and frequency, serving as a reference standard for verifying measurement accuracy. This reference signal allows users to assess and, if necessary, adjust the accuracy of Class 2 sound level meters and noise dosimeters, ensuring precise and compliant occupational noise measurements.

Inteccon - Features

Key Features

The SV 34B is a compact Class 2 acoustic calibrator designed for routine verification of sound measuring instruments. It provides stable 114 dB calibration with certified accuracy, making it ideal for everyday occupational noise applications.

IEC 60942 Class 2 Compliance

Designed in accordance with IEC 60942:2003 Class 2 standards for routine sound level meter calibration.

Accurate 114 dB Reference Output

Generates a stable 114 dB, 1 kHz calibration signal with ±0.5 dB SPL accuracy and ±0.2% frequency tolerance.

Automatic Output Stabilisation

Feedback control system maintains consistent output levels without manual user adjustments.

Long Battery Life

Operates up to 40 hours at 94 dB and 30 hours at 114 dB using two AAA batteries.

Robust and Ergonomic Housing

Sturdy construction with a comfortable grip ensures durability and ease of handling during routine calibration.

Certified Measurement Traceability

Delivered with a calibration certificate traceable to national standards for dependable verification.

FAQ Component

Frequently asked questions

What is a sound level calibrator used for?

A sound level calibrator is used to verify the accuracy of a sound level meter before and after measurements by generating a precise tone, typically 94 dB at 1 kHz.

How often should I calibrate my sound level meter?

You should check your meter’s calibration daily before and after use, and have it professionally calibrated every two years for certified accuracy.

Can I rely on the meter’s internal calibration check?

No, because internal checks don’t test the microphone, the most sensitive part of the system so an external calibrator is essential.

Why is regular calibration important?

Calibration ensures that environmental factors or wear haven’t affected your meter’s accuracy, maintaining reliable and compliant noise measurements.

How do I know when the SV 34B is ready to use?

When powered on, the calibrator quickly stabilizes its output. The tone is ready once the level remains steady.

How long can I use the SV 34B on a single set of batteries?

It runs for about 30 hours at 114 dB and up to 40 hours at 94 dB, using two AAA batteries.

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