Installation; Physical Location And Placement; Electrical Connections - Emerson Mobrey Series Functional Safety Manual

Functional Safety Manual
M310/FSM, Rev BA
Section 4
Note
For all product information and documentation downloads, see the on-line
Mobrey Magnetic Level Switch web page at Emerson.com/Mobrey.
4.1

Installation

The Mobrey Magnetic Level Switch ("level switch") must be installed as described in the installation
section of the product manual M310. Check that environmental conditions do not exceed the ratings in
the specification section.
The Mobrey level switch must be accessible for physical inspection.
4.2

Physical location and placement

The Mobrey level switch shall be accessible with sufficient room for cover removal and electrical
connections, and allow for manual proof-testing to take place.
The switch point is determined by the location of the level switch, and consideration must be given to
allow the safe proof-testing of the level switch by forcing liquid to put the switch into its Fail Safe State.
4.3

Electrical connections

Wiring should be adequately rated and not be susceptible to mechanical damage. Electrical conduit is
commonly used to protect wiring.
Installation and Commissioning
Installation and Commissioning
Installation and Commissioning
April 2017
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