SV 33B Calibrators

The SV 33B is a Class 1 acoustic calibrator designed to verify Class 1 and Class 2 sound level meters and dosimeters equipped with ½″ microphones. It generates a precise 114 dB calibration signal at 1 kHz, regulated in real-time by a microprocessor using data from a reference piezoresistive sensor and built-in pressure and temperature sensors. This ensures accurate, stable calibration output under varying environmental conditions. Compact and robust, the SV 33B is well-suited for both field and laboratory use, making it an essential tool for acoustic measurement professionals.

Key Specifications

• Class 1
• 114 dB at 1 kHz
• ½″ microphone compatibility
• microprocessor-regulated output
• piezoresistive reference sensor
• built-in pressure and temperature compensation
• IEC 60942:2017

Applications

• Sound level meter calibration
• Noise dosimeter calibration
• Field verification
• Laboratory calibration

Standards & Certifications

IEC 60942:2017 Class 1