Our level controllers regulate liquid levels, from water to harsh chemicals. To do this, we prefer to sense the liquid level using float switches for their combination of reliability, low cost, and easy adjustability. (For example, good luck lowering the sensing point once you’ve cut a conductivity stick too short!) The reason some people don’t like float switches is because they either use them in an improper circuit, or they sustain mechanical damage. Both of these are misconceptions as we will see below.
The essential component in a float switch is the reed switch, which is typically rated in the billions of cycles if used in a properly designed circuit. This is possible because a rhodium contact is vacuum sealed in a glass ampoule. And in our products, the reed switch has two further process seals. Industrial controls don’t get any more reliable than that. To prevent mechanical damage, we have extended our drum level technologies to include float guards. These guarantee that the float switches cannot get physically damaged. Together, this results in an extremely reliable level control system. Nevertheless, we include built-in emergency alarms for high or low level on every level control system anyway. Just in case some other component in the installation fails. (like a solenoid valve, burst pipe, tank leak) Finally, all our enclosures are waterproof and corrosion proof to survive service in the plating industry.
In addition to making these reliable, we strive to make things as compact as possible. For example, the two float pipes are only 1 inch in diameter so they can fit into a 2 inch tank bushing or drum plug. In addition, the electronics enclosure can be mounted right on the tank with our LC-2 design so you don’t even need to mount a box on the wall. Adjusting the depth of the sensing points is designed to be easily adjustable with just a thumbscrew. To adjust the depth, the pipe simply slides up and down in our proprietary 2 inch NPS plug.
EASY TO INSTALL
We also strive to make our level control systems easy to install. For example, we pre-wire solenoid valves, or motorized valves. Yours or ours. This way your installation consists only of mounting the level control system on the wall and plugging it in. Of course, we also make custom level controllers using the experience we have gained with our tank level alarms and drum level alarms.