CHES – SINGLE POINT WIT LEVEL S

CHES – SINGLE POINT WIT LEVEL S
FLOAT TYPE
Large Size – Alloys
LS-1800 and LS-1900 Series are a Step Above Our Plastic Units for Pressure Capabilities
Excellent stability for general use in oils and water.
LS-1800 Series –
Teflon® Float
LS-1900 Series –
Buna N Float
Ro H S
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EM
Ro H S
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®
S CO PLIAN
M
T
Ro H S
G
EM
EM
Ro H S
G
®
S CO PLIAN
M
T
EM
®
S CO PLIAN
M
Ro H S
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®
S CO PLIAN
M
T
EM
T
Ro H S
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S CO PLIAN
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LEVEL SWITCHES – SINGLE POINT
LS-1800 Series –
Buna N Float
T
Intermediate in size, LS-1800 switches provide long life and
dependability to meet a broad range of requirements.
EM
®
S CO PLIAN
M
T
With large float displacement, switch
withstands rough service; is suitable for
high viscosity liquids.
Dimensions
LS-1800 Series
LS-1900 Series
Teflon® Float
Buna N Float
1/8" NPT
1/8" NPT
17/32"
(13.5 mm)
Buna N Float
17/32"
(13.5 mm)
1/2" HEX
(12.7 mm)
1/4" NPT
21/32"
(16.7 mm)
1/2" HEX
(12.7 mm)
5/8" HEX
(15.9 mm)
SPRING
7/8"
2-15/16" (22.2 mm)†
(74.6 mm)
1-3/4"
(44.5 mm)
2-13/32"
(61.1 mm)
2-15/16"
(74.6 mm)
7/8"
(22.2 mm)†
1-3/4"
(44.5 mm)
2-13/32"
(61.1 mm)
FLAT
WASHER
1-1/4" DIA.
(31.7 mm)
3-3/16"
(80.9 mm)
1-3/16"
(30.2 mm)†
1-13/16"
(46.1 mm)
2-17/32"
(64.3 mm)
1-1/4" DIA.
(31.75 mm)
1-7/8" DIA.
(47.6 mm)
†L1 = Switch actuation level, nominal (based on a liquid specific gravity of 1.0).
Common Specifications
Electrical Termination: No.18 AWG, 24˝ L., Polymeric Lead Wires.
Approvals: All Switches on this page are U.L. Recognized – File No. E45168, and are CSA Listed – File No. 30200.
RoHS – In compliance with EU-directive 2011/65/EC requirements for chemicals and substances.
Switch Operation: Selectable, N.O. or N.C., by inverting float on unit stem (except for LS-1800 Series switch with Teflon® float).
Units are shipped N.O. unless otherwise specified.
How To Order – Select Part Number based on specifications required.
Material
Series
Number
Stem and
Mounting
Float
Brass
Buna N
LS-1800
316 Stainless
Steel
Buna N
Other
Wetted
Operating Temperature
Pressure,
PSI, Max.
.75
316 Stainless
Steel, Hysol
Teflon®
Water: to 180°F (82°C)
Oil: -40°F to +230°F (-40°C to +110°C)
150
.75
.65
Brass
LS-1900
Min. Liquid
Sp. Gr.
-40°F to +250°F (-40°C to +121°C)
300
.55
Buna N
316 Stainless
Steel
*See “Electrical Data” on Page X-5 for more information.
**LS-1800 100 VA switches are not U.L. Recognized.
Lg. Alloy Float Series / p1of1 / 22-OCT-14
Water: to 180°F (82°C)
Oil: -40°F to +230°F (-40°C to +110°C)
316 Stainless
Steel, Hysol
.55
150
Switch*
SPST
Part
Number
20 VA
01801
100 VA**
35651
20 VA
01807
100 VA**
35657
20 VA, N.O.
01811
20 VA
01901
100 VA***
35676
20 VA
01907
100 VA
35682
*** LS-1900 100VA unit is UL Resistive Rated.
Visit www.GemsSensors.com for most current information.
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