- Compact design for restricted spaces
- Low-cost solution for single point liquid level monitoring
- Engineered for precise and reliable operation
- Reed Switch Design for High Repeatability
- All stainless steel wetted parts available
- NPT male fittings standard, many others available
- High quality Teflon® wiring
- NEMA 6 (IP68) Rated
Intempco LFS-A float level switches provide a low-cost general purpose solution for single point monitoring of liquid level in a variety of applications. Powerful permanent magnets within the float actuate a highly reliable and repeatable hermetically sealed reed switch as the float rises and lowers with liquid level. These switches are available in several different material constructions for compatibility with many types of liquids, a wide temperature range, and system pressure requirements. Vertical mounting styles with several mounting thread variations are offered for ease of installation. Reed switches carry electrical ratings for both AC and DC voltage for adaptability to many control interface applications. These float switches are available with either normally open or normally closed operation, and most can be converted to the opposite operation in the field. Designed to be shock and vibration resistant, Intempco float level switches ensure long and trouble-free service.
Intempco float level switches are shipped configured for normally closed switch operation. Except where noted, most models can be easily converted to normally open operation in the field.
For Vertical Mount switches, normally closed is defined as the switch mounted in a vertical position with the mounting threads above the float (top mount) and the float in the “dry” position at the bottom of the stem (Figure 1). When the liquid raises the float, the switch will open.
To change the operation of the switch to normally open (depending on model), remove the C-clip, remove the float from the stem, flip the float 180 degrees, re-install the float on the stem and replace the C-clip. Now the switch will be normally open in the “dry” position and will close when the liquid raises the float.
- Water based liquids
- Acids compatible with Stainless 316
- Hydraulic and other clean oil applications
- Chemical holding tanks with clean liquids
- Measurement of liquid levels in mobile equipment
- Ideal for many OEM applications
- Not recommended where liquids are dirty or sticky
