The PCE-SC 43 Class 2 Sound Level Calibrator is a precision device designed for checking and calibrating sound level meters and other audio equipment. It conforms to Class 2 standards, making it suitable for a range of professional applications including environmental noise monitoring, workplace safety, and audio equipment testing.
The Class II Sound Level Calibrator operates at a calibration frequency of 1000 Hz with a sinusoidal waveform. This particular model stands out from other calibrators by offering three selectable sound pressure levels: 94 dB, 104 dB, and 114 dB, which can be adjusted using a button on the device. This addition of a 104 dB level provides extra versatility. With a high precision of ± 0.4 dB, this calibrator is exceptionally accurate, making it ideal for verifying and calibrating the accuracy of sound measuring instruments. Additionally, there is an option to obtain this calibrator with an ISO certificate, enhancing its reliability and certification for professional use.
Sound pressure level | 94 dB, 104 dB, 114 dB |
Accuracy | ±0.4 dB |
Class | 2 |
Frequency | 1000 Hz for A, B, C and D frequency weighting |
Frequency accuracy | ±1.7 % |
Stabilization time | 10 seconds |
Total harmonic distortion | <3 % |
Environmental conditions | |
Temperature influences | <0.4 dB at 0 … 40 °C / 32 … 104 °F |
Humidity influences | 25 … 90 % RH |
Atmospheric pressure | <0.1 dB at 65 … 108 kPa |
Stability at <60 seconds | ±0.15 dB |
Stability after one year | ±0.35 dB |
(normal use) | |
Operating conditions | 0 … 40 °C / 32 … 104 °F, <25 … 90 % RH, |
non-condensing | |
Storage conditions | -20 … 50 °C / -4 … 122 °F, <90 % RH, |
non-condensing | |
Automatic shutdown | after 20 minutes |
Power supply | 2 x 1.5 V AA batteries |
Battery life | ca. 50 hours |
Microphone size | 1/2 inch |
Dimensions | 60 x 130 x 37.5 mm / 2.3 x 5.1 x 1.4″ |
Weight | 400 g / 14.1 oz |