The primary use of the EL150K1 is for engine cooling systems, surge or expansion tanks, condenser radiator or vapor phase systems, pressurized or atmospheric systems. The Level Swichgage instrument can also be used to monitor lube oil, hydraulic fluid or diesel fuel reservoirs and activates alarms and/or shutdown at a predetermined minimum level. These instruments are built for low pressure systems with a maximum of 25 psi (172 kPa) [1.72 bar].
The EL150K1 Liquid Level Swichgage instrument is a combination liquid level gauge and low limit switch; the instrument includes:
(1) a chamber with pivotal float,
(2) an indicating dial with pointer,
(3) a low level contact.
When properly installed and maintained, the float operates the pointer which, in turn, both indicates level during normal operation, and closes a switching circuit if the level falls to the low-limit set point.
Maximum Temperature: 250° F (121° C)
Maximum Operating Pressure: 25 PSI (172 kPa)
Case: Die cast aluminum, polyurethane coated; approximate dimensions; 5 x 4-3/4 x 2-3/4 in. (127 x 121 x 70 mm)
Enclosure Rating: IP35
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, suitable for coolant or hydrocarbons
Gasket: Nitrile
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 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)
