Datasheet

A-4
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LEVEL SWITCHES – SINGLE POINT
Order By Part Number 142545 46999 76707
Materials
Stem and Mounting
All Polypropylene (Including Shield
4
) Polysulfone All Polysulfone (Including Collar)
Float
Polypropylene (Solid) Polysulfone Buna N
Other Wetted
— Brass, Aluminum, Polycarbonate, Viton A Epoxy
Min. Liquid Sp. Gr.
.90 .75 —
Operating Temperature
-40°F to +150°F (-40°C to +65.6°C) -40°F to +120°F (-40°C to +48.9°C) -40°F to +180°F (-40°C to +82.2°C)
Pressure, PSI, Max.
3
150 50
Switch
1
, SPST
20 VA, N.C./N.O. Dry
2
20 VA, N.C. Dry
Electrical Termination
No. 22 AWG, 22˝ L., PVC Lead Wires No. 22 AWG, 72˝ L., Polymeric Lead Wires No. 22 AWG, 72˝ L., PVC Lead Wires
9/16˝
(14.3 mm)
†
1-1/4˝ DIA.
(31.7 mm)
17/32˝
(13.4 mm)
2-3/32˝
(53.2 mm)
1/2˝ HEX
(12.7 mm)
1/8˝ NPT
1-9/16˝
(39.7 mm)
1-9/16˝ DIA.
(39.6 mm)
1/4˝ NPT
1/4˝ NPT
3/8˝-24 NPSM THD.
1-13/16˝
(46.1 mm)
†
3-15/32˝
(88.1 mm)
1-1/4˝
(31.7 mm)
1/8˝ NPT
(3.2 mm)
1/2˝ HEX
(13 mm)
1.86˝ DIA.
(47.4 mm)
25/64˝
(10 mm)
2.09˝
(53.1 mm)
15/16˝
(23.8 mm)
1-15/32˝
(37.3 mm)
0.250˝
(6.4 mm)
9/16˝
(14.3 mm)
†
1-1/4˝ DIA.
(31.7 mm)
17/32˝
(13.4 mm)
2-3/32˝
(53.2 mm)
1/2˝ HEX
(12.7 mm)
1/8˝ NPT
1-9/16˝
(39.7 mm)
1-9/16˝ DIA.
(39.6 mm)
1/4˝ NPT
1/4˝ NPT
3/8˝-24 NPSM THD.
1-13/16˝
(46.1 mm)
†
3-15/32˝
(88.1 mm)
1-1/4˝
(31.7 mm)
1/8˝ NPT
(3.2 mm)
1/2˝ HEX
(13 mm)
1.86˝ DIA.
(47.4 mm)
25/64˝
(10 mm)
2.09˝
(53.1 mm)
15/16˝
(23.8 mm)
1-15/32˝
(37.3 mm)
0.250˝
(6.4 mm)
1/8”-27 NPSM TH’D
STEM
FLOAT
ACTUATION
LEVEL
L1=3/4”
#22 AWG WIRE,
POLYMERIC
72”-78” EXT.
1 9/16”
DIA. REF.
1/4” NPT REF.
(2) PLACES
3 1/2” REF.
Unique Features Make These LS-3 Models Special
These small switches feature unique
configurations for special applications.
Part No. 142545
With Slosh Shield
Part No. 46999
Bottle Level
Part No. 76707
For Low Level
Compact, all-
polypropylene switch
with slosh shield is ideal
for use with turbulent
liquids in small tanks.
FDA compliant materials.
For external mounting
on tanks too small to
accommodate internally
mounted switches.
(See note below)
For detecting levels as
low as 5/8˝ from tank
bottom. Use in water,
some oils and chemicals.
Cut-away version shown
Notes:
1. See “Electrical Data” on Page X-5 for more information.
2. Switch operation is selectable, N.O. or N.C., by inverting the float on the unit stem.
3. Maximum pressure at 70°F (21°C).
4. Consult factory for other available materials.
† L
1
= Switch actuation level, nominal (based on a specific gravity of 1.0).
Note: LS-3 Series Bottle Level Switch is also available with any of the float materials shown on
opposite page. Contact GEMS for correct part number.
– Stock Items.