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| Home > LS-3 Series Specials Specifications |
Unique Features Make these LS-3 Models Special
Quick Specs...
- P/N 142545 - with Slosh Shield: Compact, all-polypropylene switch with slosh shield is ideal for use with turbulent liquids in small tanks. FDA approved materials.
- P/N 46999 - Bottle Level: For external mounting on tanks too small to accommodate internally mounted switches. (See note below)
- P/N 76707 - For Low Level: For detecting levels as low as 5/8" from tank bottom. Use in water, gasoline, some oils and chemicals
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Overview / Design Principle:
The durable construction of these reed switch designs ensures long, trouble-free service. Because the effects of shock, wear and vibration are minimized, these hermetically sealed switches provide precise repeatability with no more than 1% deviation. The switch actuation points remain constant over the life of the unit.
Gems level switches operate on a direct, simple principle. In most models, a float encircling a stationary stem is equipped with powerful, permanent magnets. As the float rises or lowers with liquid level, the magnetic field generated from within the float actuates a hermetically sealed, magnetic reed switch mounted within the stem. The stem is made of non-magnetic metals or rugged, engineered plastics.
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| Specifications: |
Part Number
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142545
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46999
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76707
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Materials Stem & Mounting
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All Polypropylene (including Shield)
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Polysulfone
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All Polysulfone (including collar)
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- Float
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Polypropylene (Solid)
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Polysulfone
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Buna N
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- Other Wetted
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Brass, Aluminum, Polycarbonate, Viton A
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Epoxy
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Min. Liquid Sp. Gr.
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.90
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.75
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Operating Temperature
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-40°F to 150°F (-40°C +65.6°C)
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-40°F to 120°F (-40°C +48.9°C)
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-40°F to 180°F (-40°C +82.2°C)
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Pressure, Max
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150 PSI (10.3 bar)
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50 PSI (3.4 bar)
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50 PSI (3.4 bar)
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Switch, SPST
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20 VA, N.C./N.O. Dry
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20 VA, N.C. Dry
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20 VA, N.C. Dry
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Electrical Termination
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No. 22 AWG, 22" L., PVC Lead Wire
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No. 22 AWG, 72" L., Polymeric Lead Wires
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No. 22 AWG, 72" L., PVC Lead Wires
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IMPORTANT REED SWITCH PROTECTION INFORMATION: Read before installing. |
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| A |
.1/8" NPT |
| B |
1/2" HEX (12.7 mm) |
| C |
1-1/4" Dia. (31.7 mm) |
| D |
9/16" (14.3 mm) * |
| E |
1-9/16" (39.7 mm) |
| F |
1-9/16" (39.7 mm) |
| G |
1-9/16" (39.7 mm) |
* L1 = Switch actuation level, nominal (based on a specific gravity of 1.0).
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| A |
1-13/16" (46.1 mm) * |
| B |
1/4" NPT |
| C |
1-9/16" Dia. (39.6 mm) |
| D |
1/4" NPT |
| E |
3-15/32" (88.1 mm) |
| F |
1-1/4" (31.7 mm) |
| G |
1/8"-27 NPSM THD |
* L1 = Switch actuation level, nominal (based on a specific gravity of 1.0).
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| A |
.1/8" NPT |
| B |
1/2" HEX |
| C |
Collar |
| D |
15/16" (23.7 mm) Ref. |
| E |
1-7/8" Dia. (47.6 mm) |
| F |
15/16" (23.7 mm) * |
| G |
1-9/16" (39.7 mm) |
| H |
2-3/32" (53.1 mm) |
| I |
17/32" (13.4 mm) |
* L1 = Switch actuation level, nominal (based on a specific gravity of 1.0).
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