ls-350 series level switch

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LS-350 Series Level Switch (cod: #222)

Mounting Types:

Each mounting type can be configured with stem lengths (Lo) and float materials indicated in the table below.

	Type 1	Type 2
	Flange is moveable, allowing stem and float to position to be adjusted when installed. May be bonded into set position if desired.	Designed for consistant use in same type of container. Buna N gasket provides snug seal.

Mounting Hole Dia.	1.20"/1.25" (30.5 mm/31.75 mm)	1.31"/1.32" (33.3 mm/33.5mm)
Stem, Mounting and Collar Material	Polysulfone	Polysulfone with Buna N Gasket
Pressure Rating (mounting)	Atmosphere (Not recommended for pressurized applications)
Fluid Barb	Compatible 3/16" I.D. Hose (Options Available)
Max. Length (Lo)	15 inches (38 mm) ± 1/16" (2 mm)
Mounting Position	Vertical ± 30° Inclination
Mounting Campatibility	Cubitainer® Style Opening	Tank Wall Thickness 1/32" - 1/8" (0.79mm - 0.3.17 mm)

Stem and Mounting Material	Polysulfone, Noryl®
Max Length Lo	20" (50 cm) tolerance of Lo = ±1/16" (2 mm)< /FONT >
Mounting Position	Vertical ± 30° Inclination

Float Types:


Part Number	128642	130893
Liquid Suitability	Oil-Based	Water-Based
Min. Media Specific Gravity	0.75	0.98
Operating Temperature	Oil: -40°F to +221° F (-40°C to +105° C) Water: to 180°F (82°C)	-40°F to +210°F (-40°C to +99°

A single float type is selected for use at all actuation points.

Electrical Specifications:

Typically, one float is required for each point at which you need a switch action to occur. The number of actuation levels available depends on the Group Type Wiring selected: see below.

Group I Wiring: 1 to 4 Actuation Levels

Group II Wiring: 1 to 2 Actuation Levels

Switch (SPST, N.O. or N.C.: 10/20/50/100 VA

Notes:
1. Other wiring options available. Consult factory.
2. Consult factory for load information.

Actuation Level Dimensions

*Actuation level distances and Lo (overall unit length) are measured from inner surfaces of mounting plug or lfnage. See mounting types on for Lo reference point.
** Length Overall (Lo)= L1 + Dimension D. See Mounting Types for Maximum Length values.

Switch actuation levels are determined following the guidelines below.

A= Minimum distance to highest actuation level.

B= Minimum distance between actuation levels.

C= Minimum distance between two actuation levels with one float (Note: One float for two levels can be used only when low level is N.C. dry and high level is N.O. dry).

D= Minimum distance from end of unit to lowest level.

Dimensions
Float Type	A		B	C	D
	Type 1 Mount	Type 2 Mount
Buna N	3/4" (19 mm) Min.	3/4" (19 mm)	1-3/4" (45 mm)	1/8" (3 mm) Minimum	15/16" (24 mm)
Polysulfone	1/2" (13 mm) Min.	1/2" (13 mm)	1-3/4" (45 mm)	1/8" (3 mm) Minimum	1-3/16" (30 mm)

Notes:

1. Actuation levels are calibrated on ascending fluid level with water, specific gravity 1.0 , as the calibrating fluid, unless otherwise specified.
2. Tolerance on actuation levels is ±1/8" (3 mm).

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