APG NLS Series Pneumatic Level Switch

Description

APG NLS Series pneumatic liquid level switch is designed for use in high viscosity liquids. It is modified to overcome the high viscosity by making the tip of the detecting pipe larger than usual.

The NLS is the ideal sensor for applications where electrical power is not available or hazardous conditions exist. Using a diaphragm, the switch is actuated by compression of a captive air column in the detecting pipe beneath the diaphragm. Unique level switch for viscous materials. Viscous and sticky liquids can stop a float switch in its tracks. The NLS is the answer.

Long Life

With few moving parts, only a flexing diaphragm, the NLS pneumatic point level sensor lasts long and is very reliable.

Low Power Operation

The NLS requires no power to operate it sensing elements, and provides a dry contact output.

Field Adjustable

Install a ½ in. pipe of your choosing in the bottom of the sensor housing, protruding past the switch point in the tank. The switch point is easily adjusted by your choice in pipe length.

APG NLS Series Features

  • Low cost – requires only a standard 1/2 in pipe
  • Simple installation
  • Rugged and reliable
  • Long switch life

Specification

Performance
Operation1 SPDT switch
Detection Range8 to 200 in.
Electrical
Output Contact Rating250 V, 10 A AC, 115 V, 0.5 A DC (resistive)
Physical
Housing CoverADC12 or SS41
HousingADC12 or Phenolic
ChamberADC12, SCS13, or Phenolic
DiaphragmNeoprene® or Viton®
Cable EntryPF ¾ or Gasket 6Ø
Connectivity
Wiring2 conductor lead wire
Environmental
Operating Temperature-4 to 158° F
Enclosure ProtectionIP42/NEMA 4

Download Data Sheet: Pneumatic Level Switch NLS

Ref: apgsensors.com

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