Installation Instructions

Micropilot FMR20 Modbus RS485
Endress+Hauser 31
[Any] Changes or modifications made to this equipment not expressly approved by Endress+Hauser
may void the FCC authorization to operate this equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected
• Consult the dealer or an experienced radio/TV technician for help
• The installation of the LPR/TLPR device shall be done by trained installers, in strict
compliance with the manufacturer’s instructions.
• The use of this device is on a “no-interference, no-protection” basis. That is, the user shall
accept operations of high-powered radar in the same frequency band which may interfere
with or damage this device. However, devices found to interfere with primary licensing
operations will be required to be removed at the user’s expense.
• Only for usage without the accessory “flooding protection tube”, i.e. NOT in the free-field:
This device shall be installed and operated in a completely enclosed container to prevent RF
emissions, which can otherwise interfere with aeronautical navigation.
Other standards and
guidelines
• IEC/EN 61010-1
Protection Measures for Electrical Equipment for Measurement, Control, Regulation and
Laboratory Procedures
• IEC/EN 55011
"EMC Emission, RF Emission for Class B". Industrial, scientific and medical equipment –
Electromagnetic disturbance characteristics - Limits and methods of measurement
• IEC/EN 61000-4-2
EMC Immunity, ESD (Performance Criteria A). Electromagnetic compatibility (EMC): Testing and
measurement techniques - Electrostatic discharge immunity test (ESD)
• IEC/EN 61000-4-3
EMC Immunity, RF field susceptibility (Performance Criteria A). Electromagnetic compatibility
(EMC): Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field
immunity test
• IEC/EN 61000-4-4
EMC Immunity, bursts (Performance Criteria B). Electromagnetic compatibility (EMC): Testing and
measurement techniques - Electrical fast transient/burst immunity test
• IEC/EN 61000-4-5
EMC Immunity, surge (Performance Criteria B). Electromagnetic compatibility (EMC): Testing and
measurement techniques - Surge immunity test
• IEC/EN 61000-4-6
EMC Immunity, conducted RF (Performance Criteria A). Electromagnetic compatibility (EMC):
Testing and measurement techniques - Immunity to conducted disturbances induced by radio-
frequency fields
• IEC/EN 61000-4-8
EMC Immunity, magnetic fields 50 Hz. Electromagnetic compatibility (EMC): Testing and
measurement techniques - Power frequency magnetic field immunity test
• EN 61000-6-3
EMC Emission, conducted RF. EMC: Radiated interference - Residential, commercial and light
industry environment
• NAMUR NE 21
Electromagnetic compatibility (EMC) of industrial process and laboratory control equipment
• NAMUR NE 43
Standardization of the signal level for the breakdown information of digital transmitters with
analog output signal.