Norsonic Nor1212, Инструкция по эксплуатации

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Norsonic Nor1212
User Guide
15
6 Specifications
6.1 Mounting direction
The microphone kit shall be mounted with the tip pointing upwards and
the axis of symmetry shall be vertical. The acoustic reference axis for the
microphone-assembly is from above, 25º from the vertical axis.
6.2 Acoustic performance
6.2.1 Frequency response
The modification of the free-field response and the random incidence-
response of a Nor1225 microphone when placed in the outdoor kit
Nor1212 is shown on the diagram below together with the requirements
for a Class 1 sound level meter according to IEC61672-1. Both the free
field and the random incidence-response shown are referred to the free-
field response for Nor1225 microphone without the protection kit.