14
Operation
9. When level adjustment is completed, turn the power to the pistonphone off.
10. Carefully and slowly remove the microphone of the sound pressure measurement
system (sound level meter) from the pistonphone.
Important
When removing the microphone from the pistonphone, always
proceed very slowly and carefully, to avoid the possibility
of damage to the microphone diaphragm caused by abrupt
changes in air pressure.
Also, do not rotate the microphone or the pistonphone while
removing. Otherwise the protective grid of the microphone
may become loose or detached, causing damage to the
microphone diaphragm.