11.3.2019
GSM BC englische Version 1.0 working copy - Google Docs
https://docs.google.com/document/d/1VKt6uoJvSfEkYLDzHNqqOVF-sEzni9rJ_CeRmnapthk/edit
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OPERATION MANUAL GSM-BATCORDER
9
Microphone disc
The microphone disc consists of the following technical units:
Microphone capsule, temperature sensor, ultrasonic transmitter and a foam ring.
The microphone capsule
The microphone capsule is embedded into a disc made of plastic, which serves as a
boundary layer. This disc must not be damaged! The capsule is sensitive against
mechanical strains and must never be touched directly during transport or
installation! The microphone membrane is safeguarded against raindrops by a fine
microphone mesh, but long term humidity inevitably leads to corrosion and therewith
to an increasing loss of sensitivity. This however is part of the normal wear and tear,
similarly to the fact that dust or sticky substances (dirt, gear oil from the plant etc.)
can plug the microphone mesh more and more. Therefore we strongly recommend
at least an annual checking of the microphone through the ecoObs GmbH (see
below).
The temperature sensor
The temperature sensor records the outside temperature on the microphone disc.
The ultrasonic transmitter
The ultrasonic transmitter sends a test signal daily at the beginning and at the end of
the recording to check the microphone sensitivity.
The foam ring
The foam ring serves as a weather safeguard and e.g. prevents the water coming
down the nacelle´s casing from intruding.
In case of a reinstallation or a microphone change the correction factor
of the applied microphone disc (MCF) has to be entered into the
GSM-batcorder on time. (See ‘ Extended Settings - Microphone
Correction Factor (MCF) ’).
Summary of Contents for GSM-BATCORDER 1.0
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