Controlling pumps with standard cable-suspended float switch can be challenging. Typically, you need at least two float switches and a controller to manage the logic. Additionally, securing them to conduit to prevent tangling is necessary, and their reliability is often limted, with an expected lifespan of only two to three years.
The Kari Float Switch offers a superior alternative. It features up to four switch points in a single float, built-in hysteresis to handle logic, and does not require conduit securing since only one switch is usually sufficient. Remarkably, some Kari Float Switches have been in service for over 20 years, demonstrating their durability.
These float switches are user-friendly, requiring just a simple weight to act as an anchor point, which can be adjusted to lengthen the distance between switch points. Here’s a comprehensive guide to help you install your Kari Float Switch for both empty and fill control applications.
Model Assumption: KA-3H (Controls emptying of a well or tank with a high alarm)
Begin by establishing the lowest point to ensure the level never drops below the required Net Positive Suction Head (NPSH) for your pump. This is crucial as NPSH represents the suction pressure needed to avoid cavitation and other issues. For assistance in calculating NPSH, feel free to contact us.
Secure the cable above the well or tank with a clip or mounting bracket, ensuring the float hangs at the correct position (ground zero).
Set the weight to determine the highest point’s distance from ground zero. Adjust using the same method as in Step 3 for empty control, but think in reverse to prevent over-filling.
Install the float switch wiring to your waterproof enclosure and seal the cable entrance with a cable gland. Refer to the user manual or our float switch wiring guide for specific wiring instructions.
Kari Float Switches eliminate the need for multiple float switches in a single well or tank and simplify installation by avoiding tangling issues. The built-in hysteresis can even eliminate the need for a controller in backup pump control applications. There’s no other product on the market like it.
For any assistance with float switch installation or selecting the correct device, please contact us. We're here to help!
