- Caution: Mechanical shock or vibration can cause permanent damage to the reed switch. Take care to avoid dropping the unit on hard surfaces or impacting the switch assembly.
- Liquid media containing particulate and/or debris should be filtered to ensure proper operation of the FS4 Flow Switch.
- Apply Teflon thread tape or sealant to the 3/4” MNPT pipe threads and install the switch into the piping system. Thread the Flow Switch onto the male pipe thread until hand-tight. Tighten pipe one additional turn. If improper seal results, continue turning pipe into Flow Switch in 1/4-turn increments.
- Connect wiring in accordance with local electrical codes.
- Inductive, capacitive, and lamp loads can all create conditions harmful to the reed switch.
A) Inductive loads can be caused by electromagnetic relays, electromagnetic solenoids, and electromagnetic counters, all with inductive components as the circuit load.
B) Capacitive loads can be caused by capacitors connected in series with or parallel to the reed switch. In a closed circuit the cable length (150 ft./45 meters or more) to the switch can introduce a capacitance.
C) Lamp loads can be caused by switching lamp filaments, which have low cold resistance.
In addition to these causes, exceeding any of the maximum electrical ratings can lead to premature or immediate failure. This includes inrush and surge currents greater than the maximum switching current. Use caution when evaluating system loads and current.