Innovative L500, Инструкция по установке и эксплуатации

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3.0 Reference Information
This section presents an overview of the operation of the
Multi-Point Vertically Mounted Liquid Level Float Switch,
including information on troubleshooting common problems,
maintenance procedures, listings of agency approvals, and
detailed physical, functional, and performance specifications.
3.1 Description
The Multi-Point Vertically Mounted Liquid Level Float
Switches are float actuated devices designed for vertical
mounting in a tank or process vessel through threaded or
flanged connections. This low cost switch is ideal for OEM
applications where multiple point level alarms are desired.
3.2 Theory of Operation
Switching action is achieved through the use of a magnet
inside the float assembly and its interaction with a switch
mechanism. Separating the float magnet and the switch is a
non-magnetic pressure barrier.
As the liquid level changes, the float along with the float
magnet moves. The magnetic field of the float magnet
causes a change of state of the switch, making or breaking an
electrical circuit.
3.3 Troubleshooting
The Multi-Point Vertically Mounted Liquid Level Float Switch
is designed and engineered for trouble-free operation.
Common problems are discussed in terms of their symptoms
and corrective actions as recommended.
3.3.1 External Causes
Usually the first indication of improper operation is failure of
the controlled equipment to function (e.g., pump will not
start (or stop), signal lamps fail to light, etc). When these
symptoms occur, whether at the time of installation or dur-
ing routine service thereafter, check for the following poten-
tial external causes first:
• Blown fuses
• Tripped reset button(s)
• Open power switch
• Faulty equipment controlled by level switch
• Defective wiring to level switch
Multi-Point Vertically Mounted Liquid Level Float Switch
4
Top Mounting
Bottom Mounting