MK:440 Environmental Noise Microphone
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Contents
1
Important information
There are two variants of the MK:440 available:
-
MK:440 approved for use in Class 1: Division 2 locations
-
MK:440N which is not approved for use in hazardous locations
The MK:440 is approved for use in Class 1: Division 2 environments as follows:
Class 1 Division 2 Groups C, D T4
Class 1 Zone 2 AEx/Ex ec llB T4
(-
30°C≤Ta≤+60°C)
Each MK:440 unit will have its own output levels. Please refer to the factory calibration setup
information for details for your specific instrument.
The MK:440 is supplied with the configuration preset to meet those ordered from the factory.
Calpot R1 is referred to in section 8 for calibration. This is the only setting that should be altered, if
required, by the user during a Reference Calibration.
