Tilt level switch SOBA EP

floatfor waterfor tanks

Overview
ACS certified float level switch designed for permanent immersion in drinking water systems. Constructed with food-contact compatible materials and an adjustable AISI 316L stainless steel ballast for precise level control in tanks and potable water installations.

Operation
The SOBA EP operates by tilt detection: the float rises and falls with the liquid and actuates an internal mechanical switch when the preset angle is reached. The unit includes a 3-conductor cable (COM, NO, NC) to select wiring mode. It can be used in pairs to regulate minimum and maximum levels. Not recommended for highly turbulent fluids or vessels with strong agitation.

Operating modes

• Drain mode: the upper switch position starts the pump to prevent overflow; the lower position stops the pump when the tank is empty.
• Fill mode: the circuit closes (NC) when the switch is down, starting the pump to fill the tank.

Installation and ballast adjustment
The position of the ballast on the cable determines the switching angle and the measurable level span. Adjusting the counterweight adapts the device to different densities and mild turbulence. Indicative values: min Y = 10 cm → X ≈ 25–30 cm; max Y = 30 cm → X ≈ 45–50 cm. To adjust: unclip the AISI 316L ballast from the O-ring, move the O-ring to the desired position and resecure the ballast on the cable.

Recommended accessories

• FIXCAB: cable fixing accessory for suspension and fine adjustment.
• Control relay (e.g. AT-DR07) for interface with alarms, pumps and automation.

Key features

• Tilt-based float detection.
• Precise switching angle: +/- 25°.
• Adjustable AISI 316L stainless-steel ballast for setting the pivot point.
• Smooth biconical body to limit deposit accumulation and reduce maintenance.

Technical specifications

• Switching angle: +/- 25°
• Allowed fluid density: 0.70–1.15 kg/dm³
• Electrical supply/options: 12, 24, 48 V AC/DC; up to 250 VAC — breaking capacity 16 (6) A (16 A resistive; 6 A inductive)
• Maximum operating pressure: 3.5 bar
• Maximum temperature: 85 °C
• Protection rating: IP68
• Housing: polypropylene copolymer (ACS certified)
• Cable: 3 x 1 mm², EPDM (ACS certified)
• Float weight (without cable): ~200 g
• Ballast: ~230 g stainless steel AISI 316L
• Standard cable lengths on request: 5, 6, 10, 13, 15, 20, 25, 30 m