Madison : Adjustable Switch Height Feature

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Adjustable Switch Height Feature

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M4302-7807 adjustable-height liquid level switch

M5602-7808 adjustable-height liquid level switch

M4302-7807-x and M5602-7808-x: adjustable-height liquid level switches

M Series
Adjustable-Height Liquid Level Switches

Madision Company's engineered designs can provide a liquid level switch for tank applications with slight changes in the level at which the switch signal is needed, to accommodate multiple tank designs or conditions.

In the M4302-7807 and M5602-7808 base models, downward switch height adjustment by the end user can be as much as 2", and an upward adjustment could be from 9" to 69". This would allow a series of tanks to use the same level switch configuration and provide easier field adjustments for low level indication. Multi-level indications can also be provided.

Custom mountings for multiple activation level operation The picture inset at right shows two approaches where bracket designs can also be used to provide height adjustability in addition to multiple activation points in a single tank.

Several standard Madison Company designs utilizing full-size floats are listed below. Miniature-size stems and/or floats can be engineered, which would additionally allow for Madison's Ultra-Low-Level float options to be utilized.

Features:

•	Common level switches allow end user to adjust switch depth or height
•	Bracket designs can provide for easy mounting to tanks
•	Can overcome uneven tank stands to allow for accurate low level indication
•	User can change operation from normally closed to normally open
•	Engineered configurations available

M4302-7807 Specifications & Standard Models (representative standard designs):

Wetted Materials	Stem and Fittings: Brass Float: Buna-N Grip Rings: Beryllium Copper
Operation	Normally closed, opens on rising level. User can reverse operation.
Max. Temperature	105°C (221°F)
Max. Pressure	150 PSIG
Float Specific Gravity	0.45
Electrical Rating of Switch	60-Watt, SPST
Mounting	2"-11.5 NPT Pipe Plug

Standard Models:	Level 1 (± 0.125")	Total Length	Adjustable Switch Level
Standard Models:	Level 1 (± 0.125")	Total Length	Up	Down
M4302-7807-1	10.5" (26.7cm)	12" (30.5cm)	2" (50.8mm)	9" (22.9cm)
M4302-7807-2	22.5" (57.2)	24" (61.0)	2" (50.8)	21" (53.3)
M4302-7807-3	34.5" (87.6)	36" (91.4)	2" (50.8)	33" (83.8)
M4302-7807-4	46.5" (118.1)	48" (121.9)	2" (50.8)	45" (114.3)
M4302-7807-5	58.5" (148.6)	60" (152.4)	2" (50.8)	57" (144.8)
M4302-7807-6	70.5" (179.1)	72" (182.9)	2" (50.8)	69" (175.3)

M5602-7808 Specifications & Standard Models (representative standard designs):

Wetted Materials	316 Stainless Steel
Operation	Normally closed, opens on rising level. User can reverse operation.
Max. Temperature	200°C (392°F)
Max. Pressure	200 PSIG
Float Specific Gravity	0.55
Electrical Rating of Switch	60-Watt, SPST
Mounting	2"-11.5 NPT Pipe Plug

Standard Models:	Level 1 (± 0.125")	Total Length	Adjustable Switch Level
Standard Models:	Level 1 (± 0.125")	Total Length	Up	Down
M5602-7808-1	10.5" (26.7cm)	12" (30.5cm)	2" (50.8mm)	9" (22.9cm)
M5602-7808-2	22.5" (57.2)	24" (61.0)	2" (50.8)	21" (53.3)
M5602-7808-3	34.5" (87.6)	36" (91.4)	2" (50.8)	33" (83.8)
M5602-7808-4	46.5" (118.1)	48" (121.9)	2" (50.8)	45" (114.3)
M5602-7808-5	58.5" (148.6)	60" (152.4)	2" (50.8)	57" (144.8)
M5602-7808-6	70.5" (179.1)	72" (182.9)	2" (50.8)	69" (175.3)

All specifications are subject to change without notice.

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