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Installing/mounting
Note
Installation shall only be performed by qualified personnel and in accordance with local
governing regulations.
3.1
Location Requirements
The MFA 4p (and RMA if applicable) must be mounted in a non-hazardous area that is clean,
dry, vibration-free, within the ambient temperature range, and non-corrosive to the
electronics or its enclosure. The door should be accessible for viewing and to allow calibration
of the MFA 4p.
Consider the probe location carefully before installation. Avoid strong magnetic fields
(50/60 Hz) from nearby power transformers, heater elements, or large industrial motors,
because these can affect the probe's performance.
Note
Do not mount MFA 4p in direct sunlight.
3.2
Proper Mounting
The probe should be mounted onto a vibration free structure using the mounting flange. The
gap between probe and target should be large enough to prevent the target from damaging
the probe. The probe environment must be within the probe's ambient temperature range
and non-corrosive to the probe's body. Refer to Applications (Page 35).
The probe design detects a changing magnetic field, typically caused by a ferromagnetic
target disturbing the probe's magnetic field. Extremely strong magnetic fields (like those
produced by the 30 A/m requirements of 1EC 60004-8, Power Frequency Magnetic Field
Immunity test) will be detected and will result in loss of functionality.
Functionality loss indicators:
• Alarm conditions by relay trip
• False pulse readings in LED1
8
Operating Instructions, 12/2020, A5E33988839-AC
3
Milltronics MFA 4p
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