Svantek 34B Sound Calibrator (Class 2; 114 dB; ±0.5 dB)

Calibration Signal Parameters:

Sound Pressure Level (SPL): 114 dB

IEC 60942 Accuracy: Class 2

SPL Tolerance: ±0.5 dB

Frequency Tolerance: ±0.2 %

Total Harmonic Distortion (THD): < 0.75 %

General Information:

Effective Load Volume Sensitivity: 0.00027 dB/mm³

Level Stabilisation Time: typically 15 s; max 30 s

Calibration Microphones: 1/2” and 1/4”

(with SA 30 adapter)

Storage Temperature Range: -25 °C to +70 °C

CE Classification: EN 61010-1:2010; EN 61326-1:2013; IEC 60942:2017

Working Conditions:

Temperature Range: from -10 °C to +40 °C (relative SPL error ±0.2 dB)

Atmospheric Pressure Range: from 65 kPa to 108 kPa (relative SPL error ±0.10 dB)

Humidity Range: from 25 % to 90 % RH (relative SPL error ±0.05 dB)

Reference Conditions:

Ambient Temperature: 23 °C

Atmospheric Pressure: 101.3 kPa

Humidity: 30 % ÷ 80 % RH

Effective Microphone Load Volume: 250 mm³ for microphone type B&K 4134

Power Supply:

Battery Type: 2 × LR03 (IEC) / AAA (ANSI) alkaline batteries

Continuous Operating Time:

30 hours for 114 dB level

Stand-by Period: around two years

Electrical Requirements:

Minimum Voltage Requirements: 2.1 V DC

Maximum Operating Voltage: 4 V DC – absolute maximum supply voltage at the battery terminals

Datasheet