CEL Acoustic Calibrator 120
Casella CEL

CEL Acoustic Calibrator 120

Pine Item #54990

The field calibration of Sound Level Meters is an essential procedure when carrying out any type of noise survey both before and after each measurement sequence. This ensures that instruments are providing consistently accurate readings necessary for monitoring to ensure compliance with workplace and environmental noise regulations. The CEL-120 is therefore designed and manufactured to comply with the requirements of IEC 60942 2003 and ANSI S1.40 2006. These standards stipulate accurate calibration over a wide range of temperature, humidity and pressure conditions, typical of field work, ensuring accurate calibration in all conditions. The CEL-120 is compact and ergonomically designed with simplicity and ease of use being the highest priorities.


A simple keypad for intuitive control, permitting calibration level changes when required

A MEMS microphone and digital feedback loop to maintain the acoustic pressure

IEC60942 Class 2

Microprocessor control detects when the microphone is removed

Low battery consumption, allowing batteries to last for up to 2 years of operation

Dual calibration level (Class 1 version) of 94dB and 114dB at 1khz


Complete shift exposure measurements

Task based measurements

Measurements according to ISO9612: 2009

Selection of hearing protection

Measuring personal noise exposure

Ensuring compliance with Workplace Noise Regulations

Quantity must be 1 or more
Equipment available for both rental and purchase
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Technical Specifications

Calibration sound pressure level (over environmental rangeCEL-120/1: 114.0dB ±0.4dB and 94.0dB ±0.4dB CEL-120/2: 114.0dB ±0.6dB
Calibration level (at reference conditions):CEL-120/1: 114.0 dB ±0.25 dB and 94.0 dB ±0.25 dB, CEL-120/2: 114.0 dB ±0.35 dB
Calibration Frequency:1kHz ±1Hz
Harmonic DistortionLess than 1.0%
Battery2 x 1.5V AAA (LR03)
Battery lifeA typical operational life of 2 years
DimensionsUS: 2.9 x 2.1 x 1.4 in. Metric: 75.5 x 54.0 x 37.0mm
WeightUS: 0.19 lb. Metric: 85g
Manuals, Data Sheets & Software