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Type 2250 light with calibrator Type 4231

Type 4231

声音校准器

HBK Class 1 声级校准器专为声级计、麦克风和其他声音测量设备的精确现场声学校准而设计。

Type 4231

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4231型是一种方便、便携的声源，用于声级计和其他声音测量设备的声学校准。该声音校准器非常稳定，符合IEC/EN 60942(2017) Class 1和ANSI S1.40–2006。

双声压级保证即使在嘈杂的环境中也能进行确定性检查，并确保麦克风的线性。为了对测量结果有最大的信心，您可以在每次测量前进行校准，从而快速补偿本地测量条件。

Ul.

坚固的口袋式设计，高度稳定的电平和频率

校准精度±0.2 dB

94 dB SPL 或 114 dB SPL,用于嘈杂环境中的校准

静压和温度影响极小

声压与麦克风等效音量无关

1 kHz校准频率，实现与加权网络无关的正确校准电平

安装HBK 1″麦克风(1/2″、1/4″和1/8″麦克风，带a 麦克风适配器)

从麦克风上取下时自动关闭

Code	Name
-4231---	Sound Calibrator Class 1 and LS, 94 and
-4231-W-004-	Sound Cal, Class1 & LS, 94&114dB, 1kHz

Sound Calibrator Type 4231	Data Sheets	English
Daten und Fakten - Schallkalibrator Typ 4231	Data Sheets	German
Sound Calibrator Type 4231	Data Sheets	Chinese
Dati tecnici - Calibratore sonoro Tipo 4231	Data Sheets	Italian
Fiche technique - Calibreur acoustique Type 4231	Data Sheets	French
Multi-language User Manual for Sound Calibrator Type 4231	Manual	English, French, German

Use Scenarios

Calibration of sound level meters
Calibration of microphones
Calibration of general sound measurement instrumentation

Features

Robust, pocket-sized design with highly stable level and frequency
Calibration accuracy ±0.2 dB
94 dB SPL or 114 dB SPL for calibration in noisy environments
Extremely small influence of static pressure and temperature
Sound pressure independent of microphone equivalent volume
1 kHz calibration frequency for correct calibration level independent of weighting network
Fits Brüel & Kjær 1″ microphones (1/2″, 1/4″ and 1/8″ microphones with a microphone adaptor)
Switches off automatically when removed from the microphone

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Type 4231

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