Float level switch
The TUBA 150 C float level switch is a tubular level detector specially designed for the most extreme industrial environments, involving highly aggressive liquids or particularly high temperatures, up to 150 degrees C.
Thanks to its reinforced design, combining an FEP cable and a PTFE (Teflon) housing, it offers exceptional resistance and guarantees maximum durability even in the presence of highly oxidizing media or powerful solvents with corrosive chemicals such as sulfuric acid, toluene or other concentrated industrial liquids.
With a small diameter (diameter 40 mm), the TUBA 150 C tubular level detector can be easily installed in tanks with reduced access or via small side openings, where other level detectors cannot be used.
Robust, reliable and perfectly adapted to extreme thermal environments, the TUBA 150 C tubular level detector is the ideal solution for level control in chemical and high temperature environments, while ensuring stable and precise operation.
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Drainage or FillingThe TUBA 150 C level detector operates on the tilt level detection principle.
The float is equipped with a three-conductor cable (COM, NO, NC), allowing the operating mode to be selected during wiring: Used in pair with another float of the same type, it allows regulation of the minimum and maximum levels of a tank.
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In drainage mode, the level detector triggers the pump start in high position (overflow protection). An electric current passes through the float to the connected device (control relay, pumps, valves, alarms).
Once the tank is empty, the level switch cuts the electrical circuit to protect equipment (pumps) in the absence of water in the tank.
In filling mode, the electrical circuit inside the switch closes (NC) when the switch is in low position. Thus, the pump starts to fill the tank.
Ballast positioningThe triggering of the float level switch (switching angle) can vary depending on liquid agitation, fill/drain flow rate but especially on the ballast positioning or fixing point. Indeed, the cable length between the counterweight and the float switch determines the amount of liquid that rises or falls to cause the float switch to change state. You have the possibility to adjust the counterweight on the device cable to optimize its operation. |
You have the possibility to adjust the counterweight on the device cable, thus the greater the distance between the ballast and the float, the greater the level difference will be, consequently the greater the switching angle will be.
This allows the float to adapt to possible turbulence in the liquid but also allows the float to work in a wide range of densities.
Below are indicative values for the BIP STOP with minimum and maximum cable length to ensure proper operation:
Min. value Y = 10cm > X ≈ 30-35 CM
Max. value Y = 30cm > X ≈ 60-65 CM
To adjust the ballast on the cable, simply pull on the plastic or resin ballast to unclip it from the clamping ring or O-ring. Then, slide the clamping ring/O-ring to the desired location and replace the ballast on it, so that the weight is locked on the cable.
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Float fixingThe float level switch can be suspended via the cable sheath, using the FIXCAB fixing accessory, which allows proper fixing of the electrical cable at the desired height and allows precise adjustment at any time. Be careful when using clamps or other elements during fixing that can damage the cable and deteriorate the device by allowing water to enter inside the float level switch by capillarity.
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Electrical connectionIn outdoor or humid spaces, the electrical connection of the float level switch must be waterproof and properly insulated in a hermetic box, thus preventing water or other contaminants from entering the cable. This helps prevent water infiltration that could compromise the safety of electrical connections as well as the lifespan of the float. The electrical connection box must never be placed inside the tank. The cable and its capillary can be extended using a standard signal cable. We equip our floats with the cable length you want to avoid connections that would harm their operation.
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Fixing accessory strongly recommended for all suspended floats.
Level control relay with alarm.
Adjustable ballasts are essential for proper float operation.
To better define the float level switch adapted to your need, ATMI offers a wide range of level switches for liquids and solids in various applications.
