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Series Level Switch LS-77700 Gems Sensors

Gems Sensors Series Level Switch

These units perform in liquids with specific gravities as low as .45; switches protrude into tank less than 3 inches.
Stock
-1
Code
LS-77700

Gems Sensors Series Level Switch

 

 Bent Stem Switches Provide Greatest Buoyancy Of Any Side Mount Version

Quick Specs... 

  • Bent Stem / Side Mount Design  
  • Specific Gravity as low as .45 
  • Stainless Steel or Brass 

Overview / Design Principle: 

These units perform in liquids with specific gravities as low as .45; switches protrude into tank less than 3 inches.

Type II version shown.

Dimensions:

 Type 1 - 1/8" NPT
 DimLS77700TypeI.gif 
A  1-3/4" (44.5 mm) 
B  3-1/4" (82.6 mm) 
C  1" Dia. (25.4 mm) 
D  15/16" (23.8 mm) 
E  Buna N Float 
F  L1 
G  1/8" NPT 
H  1/2" HEX (12.7 mm) 
 Type II - 3/8 - 24" Thread
 DimLS77700TypeII.gif 
A  1-3/4" (44.5 mm) 
B  3-1/4" (82.6 mm) 
C  1-1/2" Dia. (38.1 mm) 
D  1" (25.4 mm) 
E  316 SS Float 
F  3/4" (19.0 mm) 
G  L1 
H  3/8" - 24 UNF 2A THD 
I  3/4" HEX (19.0 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"
 
 
Typical Wiring Diagram
LS77700Wire.gif 
When mounted "Stem up", units are N.C. dry. 
Typical Installation:
        
LS77700Install1.gif 
LS77700Install2.gif 
Shown with Buna N float.
Threads into NPT boss.
Shown with stainless steel float.
Mounts directly through tank wall.
 

 

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 Beryllium, Copper, or PH-15-7-MO Stainless Steel.  

 

 IMPORTANT REED SWITCH PROTECTION INFORMATION: Read before installing.

Product Documentation

LS-77700 Series
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