Type 42AB


Type 42AB
The Sound Calibrator Type 42AB is a portable, battery operated calibrator which produces a constant sound pressure level of 114 dB re. 20µPa (equivalent to 10 Pa) at 1 kHz. It is easy to use and requires no corrections for ambient pressure changes or microphone equivalent volume.

It includes adapters for calibrating 1", ½", and ¼" microphones. An adapter for ⅛" microphones can be ordered. The Type 42AB complies with the requirements of IEC 60942 (2003-01) Class 1 and ANSI S1.40 (1997).

Specifications Type 42AB
Sound pressure level:
114 dB (re. 20  µPa)  ± 0.2 dB
Frequency:
1 kHz
Temperature range:
- 10 °C to + 50 °C
Batteries:
6LR61, 9 V
Accuracy:
IEC 60942 (2003-01) Class 1
Weight:
185 g
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