Description
The L150 Series Level SWICHGAGE
®
is a combination liquid
level gauge and low limit switch; each unit includes (1) a chamber
with pivotal float, (2) an indicating dial with pointer, and (3) a low
level contact. When properly installed and maintained, the float
operates the pointer which, in turn, both indicates level during nor-
mal operation, and closes a switching circuit if the level falls to the
low-limit set point.
Applications
The primary use of the L150/EL150K1 is for engine cooling sys-
tems, surge or expansion tanks, condenser radiator or vapor
phase systems, pressurized or atmospheric systems. The Level
SWICHGAGE
®
can also be used to monitor lube oil, hydraulic
fluid or diesel fuel reservoirs and activates alarms and/or shut-
down at a predetermined minimum level.
These instruments are built for low pressure systems with a
maximum of 25 psi (172 kPa) [1.72 bar].
Specifications
Level SWICHGAGE
®
Series
For Engine Liquids
L-6795B
Revised 10-99
Catalog Section 15
(00-02-0058)
L150/EL150K1 Series for Coolants,
Lube Oils, Fuel and Hydraulic Fluid
L150
Case: Die cast aluminum, poly-urethane coat-
ed; approximate dimensions; 4-1/2 x 4-3/4 x
2-3/4 in. (114 x 121 x 70 mm).
Mounting Holes: (2) 9/32 in. (7 mm) diameter
at 4-1/2 in. (114 mm) on center.
Float: Brass.
Lens: Polycarbonate.
O-rings: Saturated Nitrile, are suitable for
coolant or hydrocarbons. Maximum tempera-
ture 250°F (121°C).
Gasket: Neo-cork.
Vent Tube: 1/4 x 5 in. (6 x 127 mm) copper
cane with 1/4 NPT x 1/4 in. (6 mm) tube fitting.
Contact Rating: 2 A @ 30 VAC/DC.
Wire: (1) 16 AWG x 26 in. (1.5 mm
2
x 660 mm)
with terminals.
Shipping Weight: 29 oz. (0.82 kg.).
Shipping Dimensions: 5-1/4 x 5-1/4 x
5-1/2 in. (133 x 133 x 140 mm).
EL150K1
Case: Die cast aluminum, poly-urethane coat-
ed; approximate dimensions; 5 x 4-3/4 x 2-3/4
in. (127 x 121 x 70 mm).
Mounting Holes: (2) 9/32 in. (7 mm) diameter
at 4-1/2 in. (114 mm) on center.
Float: Brass.
Lens: Polycarbonate.
O-rings: Saturated Nitrile, are suitable for
coolant or hydrocarbons. Maximum tempera-
ture 250°F (121°C).
Gasket: Neo-cork.
Vent Tube: 1/4 x 5 in. (6 x 127 mm) copper
cane with 1/4 NPT x 1/4 in. (6 mm) tube fitting.
Snap-Switch: SPDT rated 10 A @ 125 VAC;
0.5 A @ 125 VDC; 10 A 30 VDC.
Wire: (3) 18 AWG x 14 in. (1.0 mm
2
x 356 mm).
Shipping Weight: 42 oz. (1.2 kg.).
Shipping Dimensions: 5-1/4 x 5-1/4 x
5-1/2 in. (133 x 133 x 140 mm).
EL150EX
Case: Sand cast aluminum, painted;
approximate dimensions; 6-1/2 x 5-3/4
x 5-1/4 in. (165 x 146 x 133 mm).
Mounting Holes: (2) 5/16 in. (8 mm)
diameter at 5-1/2 in. (140 mm) on center.
Float: 304 Stainless steel.
Lens: Tempered glass.
O-rings: Saturated Nitrile, are suitable for
coolant or hydrocarbons. Maximum tempera-
ture 250°F (121°C).
Gasket: Neo-cork.
Vent Tube: 1/4 x 5 in. (6 x 127 mm) copper
cane with 1/4 NPT x 1/4 in. (6 mm) tube fitting
and 1/2 NPT to 1/4 NPT reducer fitting.
Snap-Switch: SPDT rated 10 A @ 125 VAC;
0.5 A @ 125 VDC; 10 A 30 VDC.
Wire: Wired to terminal block.
Shipping Weight: 5 lbs. (2.26 kg.).
Shipping Dimensions: 6-1/2 x 6-3/4 x 6-3/8
in. (165 x 171 x 162 mm).
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