Sound Level Calibration

WHAT WE DO
Trescal’s fully accredited acoustic calibration laboratories ensure that your audiometric, acoustic and vibration equipment performs how it was meant to. From a handheld screening device to a fully featured clinical instrument, we provide ISO/IEC 17025 accredited and traceable calibration from our laboratories or on your site.
EQUIPMENT TYPES & CALIBRATION SCOPE
EQUIPMENT TYPES
We calibrate a wide range of sound level meters, including:
- Type 1 / Class 1: Precision Grade for laboratory and field use
- Type 2 / Class 2: General Purpose Grade for field use
CALIBRATION SCOPE
- Free-field calibration: 125 Hz…20 kHz (sound pressure level 75 dB to 94 dB)
- Pressure calibration (in an electroacoustic coupler): 31.5 Hz to 16 kHz (64 dB to 114 dB)
- Pressure calibration (two-point with pistonphone and calibrator): 250 Hz (94 dB, 114 dB or 124 dB) and 1 kHz (94 dB or 114 dB)
- Pressure chamber, low frequency (only factory calibration possible): 0.1 Hz to 31.5 Hz (124 dB)
- Full electrical calibration