The TUBA 1"1/4 tubular float level detector is designed for precise control of liquid levels in cisterns, reservoirs and tanks of various dimensions, while maintaining excellent reliability.
With its slightly larger diameter (O 36 mm), the TUBA 1"1/4 tubular level detector is perfectly suited for installations requiring a more robust float, capable of withstanding intensive operating conditions or slightly loaded liquids.
Its simple and reliable operating principle is based on the tilting of the float under the pressure of the liquid. This system ensures pump automation, alarm triggering or control of other control devices in a wide variety of liquids, whether clean or slightly loaded.
Thanks to its reduced switching angle of +-20deg, the TUBA 1"1/4 tubular level detector offers precise and stable level control, suitable for applications requiring reliability and precision.
👉 For applications with highly aggressive liquids or high temperatures (up to 125degC), also discover the TUBA 125 C tubular level detector.
100% French design and manufacturing.
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Drainage or FillingThe TUBA 1'' 1/4 level detector operates on the principle of tilt level detection.
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 regulating the minimum and maximum levels of a tank.
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In drainage mode, the level detector activates the pump start in high position (anti-overflow). An electric current flows through the float to the connected device (control relay, pumps, valves, alarms).
Once the tank is empty, the level switch cuts off the electrical circuit to protect the 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 activation of the float level switch (switching angle) can vary depending on liquid agitation, filling/drainage flow rate but especially depending 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 lowers to bring 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 and consequently the greater the switching angle will be.
This allows the float to adapt to possible turbulence in the liquid but also to work in a wide range of densities.
Here 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 sealed 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 float's lifespan. 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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The TUBA 1'' 1/4 tubular level detector allows fast and precise detection on multiple levels thanks to its switching angle of +/- 20deg.
Its tubular shape allows it to enter very narrow passages, small hatches or flanges where space is limited. This simplifies installation compared to bulkier pear-shaped float level switches that require space to be handled.
Cable fixing accessory (FIXCAB) strongly recommended for all suspended floats.
Level control relay with alarm.
Multifunction socket ideal for pump control.
Adjustable ballast is essential for proper float operation.
To best define the pear-shaped float level switch suitable for your needs, ATMI offers a wide range of level switches for liquids and solids in various applications.
