Level switch LBFS-2.01211.0, G 3/4" A ISO 228-1, PNP, AISI 304, M12 connector with LED

LBFS-2.01211.0 is a capacitive point level switch from the Baumer CleverLevel series with a G 3/4" A ISO 228-1 process thread. The Frequency Sweep measuring principle sets the switching point from the dielectric constant of the medium (DC > 1.5), so foam, build-up and residue on the probe do not shift the switching point the way they do on conductivity switches. The device carries two independent outputs, SW1 and SW2, each set separately to High-Active or Low-Active logic.

• Switching: point level detection, Single Point, Two Point and Window trigger modes, hysteresis < ±1 mm, repeatability < ±1 mm
• Output: two PNP outputs (SW1, SW2), 50 mA, step response T90 0.1 s, adjustable damping 0...60 s
• Supply: 8.5...35 V DC, current consumption < 8 mA (typ.)
• Housing: stainless steel; wetted parts PEEK Natura and AISI 304 (1.4301), Ra ≤ 0.8 µm
• Environment: process temperature -40...115 °C (135 °C temporarily), process pressure -1...100 bar (-1...80 bar temporarily), IP67 and IP69K with a matching mating connector
• Connection: M12-A, 4-pin, polycarbonate connector with status LED indicators

The G 3/4" version is intended for tanks and pipework where the boss carries a G 3/4" internal thread and a reducing adapter is unwanted. Mounting position is free - top, bottom or side. Damping of up to 60 s is set so that surface movement or splashing does not cause false switching.

The PEEK material complies with USP Class VI. cULus listed, E365692. Marine approvals: DNV, Lloyd's Register and CCS. EMC compliance to EN 61326-1 and EN 50121-3-2.