Level Switches - Single Point - GEMS SENSORS & CONTROLS - #3

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Untitled
FLOAT TYPE
LS-77700 Series - Bent Stem Switches Provide Greatest Buoyancy Of Any Side Mount Version
These units perform in liquids with spécifie gravities as low as .45; switches protrude into tank less than 3 inches.
Dimensions
Type I - 1/8" NPT
Type II - 3/8-24" Thread
1—
5
Q_
LU
_l
i
un
LU
un _i
LU
> LU _l
1/2" HEX (12.7 mm)
1/8'NPT
1-3/4" (44.5 mm)
1/2 HEX.
(12.7 mm) 1/8" NPT
L1
buna n I
FLOAT^ 3-1/4"
\ J"f (82.6 mm)
15/16" Il ^1
3-1/4
(82.6 mm)
Typical Wiring Diagra red-
ZI
red-
L1 " dia. J
~25.4 mm)~
L1 Dimension (based on liquid specific gravity of 1.0): Buna N Float: 2-3/8" (60.3 mm) ± 3/16" Stainless Steel Float: 2" (50.8 mm) ± 3/16"
1" dia. (25.4 mm)
n.o. dry
(n.c. dry available)"
When mounted "stem up," units are N.C. dry.
Typical Install
Type I
A
Type II
Common Specifications
Electrical Termination: No. 22 AWG, 24" L., Teflon® Lead Wires
Approvals: U.L. Recognized - File No. E45168
Switch* SPST: 20 VA, 120-240 VAC. Switch is N.O. (Dry), but available N.C. (Dry).
Mounting Attitude: Vertical ± 30°.
Other Wetted Materials: Float Stop is Berylium Copper or PH-15-7-MO Stainless Steel.
Grooved Stem Option: Stem may be grooved to prevent accidental or vibrational movement of float stops (grip rings).
-
1—
Shown with Buna N float. Threads into NPT boss.
Shown with stainless steel float. Mounts directly through tank wall.
How To Order - Select Part Number based on specifications required.
Materials
Type
Stem and Mounting
Float
Min. Liquid Sp. Gr.
Operating Temperature
Pressure, PSI, Max.
Part Number
I
Brass
316 Stainless Steel
.70
-40°F to +300°F (-40°C to +149°C)
100
117711
316 Stainless Steel
117712 /
Brass
Buna N
.45
Water: to 180°F (82°C) Oil: -40°F to +300°F (-40°C to +149°C)
300
118125 /
Stainless Steel
118126
II
Brass
316 Stainless Steel
.70
-40°F to +300°F (-40°C to +149°C)
100
117715
316 Stainless Steel
117716 /
Brass
Buna N
.45
Water: to 180°F (82.2°C) Oil: -40°F to +300°F (-40°C to +149°C)
300
118127 /
Stainless Steel
118128
*See "Electrical Data" on Page X-5 for more information. / - Stock Items.
Visit www.GemsSensars.com for most current information.
A-11

pageCatalog pdf di En 2012-05-22-29