The TUBA 1" tubular float level detector is specially designed for level control in cisterns, reservoirs and tanks with narrow access. Thanks to its small diameter (Ø 29 mm), it can be introduced through small openings, often located on vertical tank walls, where conventional floats cannot be installed.
Its simple and reliable operating principle is based on the tilting of the float under liquid buoyancy. This system ensures pump automation, alarm triggering or control of other control devices in a wide variety of liquids, whether clean or slightly loaded.
With a reduced switching angle of ±20°, the TUBA 1" level detector guarantees very precise level control, ideal for applications requiring fine control in restricted volumes.
👉 For more demanding environments, particularly with highly aggressive liquids (such as sulfuric acid) or elevated temperatures up to 125°C, choose the TUBA 125 C level detector.
Design and manufacturing 100% French.
Download this documentation and keep the most important information at your fingertips.
pdf : 486.73 KB
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Drainage or FillingThe TUBA 1 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 pairs with another float of the same type, it allows regulating the minimum and maximum levels of a tank.
|
In drainage mode, the level detector activates the pump start-up in the high position (anti-overflow). 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 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 the low position. Thus, the pump starts to fill the tank.
Ballast positioningThe triggering of the float level switch (switching angle) may vary depending on the liquid agitation, the filling/drainage 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 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, 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 values given as an indication for the BIP STOP with a minimum and maximum cable length to ensure correct 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 top, so that the weight is locked on the cable.
|
Float mountingThe float level switch can be suspended via the cable sheath, using the FIXCAB cable 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 mounting that can damage the cable and deteriorate the device by allowing water to enter inside the float level switch by capillarity.
|
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 prevents water infiltration that could compromise the safety of electrical connections as well as the lifespan of the float. The electrical junction 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.
|
Unlike flat sensors, the TUBA 1'' tubular level detector offers omnidirectional detection. Its shape allows it to react to water movements regardless of its position in the liquid.
This ensures more reliable detection, especially in agitated environments or those subject to turbulence.
Level control relay with alarm.
Cable fixing accessory (FIXCAB) highly recommended for all suspended floats.
Adjustable ballast is essential for proper operation of floats.
To better define the float level switch suited to your needs, ATMI offers a wide range of level switches for liquids and solids in various applications.
