Sound level calibrator 4231

acousticfor sound level metersportable

Overview
HBK Type 4231 is a Class 1 sound level calibrator for accurate in-field calibration of measurement microphones and acoustic instruments. It provides a traceable reference signal intended for on-site verification and maintenance of sound measurement chains.

Applications

• In-field calibration of measurement microphones
• Verification and calibration of sound level meters and acoustic measurement equipment
• On-site checks during acoustic surveys and quality control

Product family

• Acoustic calibrators
• Microphone calibrators

Features

• Class 1 accuracy for precision calibration
• Portable design for on-site use
• Compatible with standard measurement microphones and sound measurement chains

Technical specifications

• Model: Type 4231
• Brand: HBK
• Product category: Acoustic calibrator / Microphone calibrator
• Accuracy class: Class 1
• Primary use: In-field calibration of microphones and acoustic measurement equipment