MK:437 & MK:438 Outdoor Microphone
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MK:437 & MK:438 Outdoor Microphone System
Overview
The MK:43x outdoor microphone system is designed to be used as part of a portable
semi-permanent acoustic measurement system. It is powered by the sound level meter
or data logger to which it is connected via the screened and waterproof cable.
The microphone system in its standard form is not equipped with a separate rainshield,
relying instead on a windshield to prevent rain reaching the microphone capsule
membrane.
Messages & Symbols
Messages are used in this manual to bring important information to your
attention. The different message types are indicated as shown below.
Pay attention!
A caution informs you that improper use of the equipment or
failure to follow instructions may cause data loss or may damage the
equipment.
Please read.
A note is a hint or advice that helps you make best use of the
equipment and accessories.
Normally, the MK:43x is use in conjunction with one of the Cirrus Research plc outdoor
measurement kits which contain the required sound level meter and have a waterproof
gland on the side to connect to the microphone.
The capsule height can be set to be between 1,2 and 1,5 meters, the two
internationally agreed microphone heights for various outdoor measurements.
It should be noted that this will bring the birdspikes to a height at which they
could cause danger to the user. Care should be taken therefore when using
the birdspikes and persons should be protected from this danger.
