Level Switches & Sensors

Side Mounted Float Level Switches
These switches have a 2-1/2" Male tank connection. Designed for horizontal mounting on the side of a vessel. The float rod allows for 1-1/2" to 5" field adjustment differential range that can be increased with the use of a longer float rod. Standard switch ratings are SPDT and 250F. A 400F switch is available. Nema 4 housing is standard. Explosionproof housings are also available.
Model Body Float Trim Pressure Rating
347-1 Bronze Copper Brass 30 10A
347-2 Bronze Stainless Brass 300 @
349-1 Bronze Stainless Stainless 30 125/250VAC
349-2 Bronze Stainless Stainless 300 or
367-1 Stainless Stainless Stainless 30 0.5 A
367-2 Stainless Stainless Stainless 300 @
367-3 Stainless Stainless Stainless 500 125 VDC

Side Mounted Float Level Switches
These level switches are mounted into the vessel side at the level where the sensor is desired. They use a low wattage reed switch actuated by a moving magnetic field. The vessel connection is 1" NPT male. The conduit connection for the wire leads is 1/2"NPT male. Explosionproof versions are available. The electrical termination is No.18 AWG polymeric lead wires 24" long.
Model Stem & Mounting Float Float Type Pressure @ 70F Temperature
Rating
346 Brass BunaN Cylinder 150 Water: 180F
Oil: 250F
348 316SS 316SS Cylinder 500 300F
356 316SS 304SS Ball (2") 900 300F

333

Vertically Mounted Float Level Switches
The Models shown below us a 20VA Reed switch which is actuated by a moving magnet field as the level changes. Some switches are available in 100VA.

Model Stem & Mounting Float Float Dia. PSIG
@ 70F
Max Temp F Conn.
Size NPT
333-1 Brass BunaN 1 150 180 1/8
391-1 316SS Teflon®* 1 1000 250 1/8
362-1 316SS 316SS 1-1/2 100 300 1/8
363-1 316SS 316SS 2-1/16 750 300 1/4
339-1 Polysulfone Polysulfone 1 50 225 1/8
372 CPVC CPVC 1-1/2 15 180 1/4
388 Teflon®* Teflon®* 2-1/8 30 300 1/4
395-1 Polyprop. Polyprop. 1 150 150 1/8
Model 324 Proximity Switches
Capacitive proximity switches have the ability to detect both conductive and nonconductive objects such as water and other liquids, plastics, wood, glass, and other materials. These switches include a 15 or 20 turn potentiometer to adjust the sensitivity of the switch. It also includes an LED to visually show switching. Switches can be mounted to vessels with a Teflon
®* mounting well.
Model Output Function Adjustable
Range
Switch Diameter
324A NO

3 – 15mm

30mm
324B NC

3 – 15mm

30mm
324C NO/NC

3 – 15mm

30mm
324D NO

2.5 – 8mm

18mm
324E NC

2.5 – 8mm

18mm
324F NO/NC

2.5 – 8mm

18mm
324G NO/NC

15 – 60mm

80 x 120mm
  *Teflon® is a registered trademark of DuPont
 
Catalog Page 52
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