DOL 26 stern level sensor without thread CA-P-18-NF-CA-SCR-B-2T, 105118

What is the DOL 26 CA-P-18-NF-CA-SCR-B-2T unthreaded capacitive feed level sensor and what is it used for?

The DOL 26 CA-P-18-NF-CA-SCR-B-2T capacitive sensor is a specialized version for unthreaded mounting. The 18 mm diameter housing has a smooth surface, which allows it to be installed in systems with collet clamps or sealing gaskets where the use of nuts is impossible or inconvenient.

Functionally, it is a fully professional tool: it is equipped with two regulators (2T) for precise adjustment of operating parameters and a universal SCR (AC/DC) output. The Break (NC) operating logic ensures contact opening when feed appears, which is the standard for filling sensors.

Key advantages of the DOL 26 CA-P-18-NF-CA-SCR-B-2T capacitive sensor

• Instant height adjustment. The main plus of the smooth housing is the ability to change the sensor immersion depth in a second. Simply loosen the clamp and slide the sensor up or down to change the line stop point.
• Maximum hygiene. The absence of thread turns means there are no "dead zones" on the housing where dirt and bacteria accumulate. The sensor is perfectly cleaned during washing.
• Adaptability (2T). Thanks to the presence of time and sensitivity trimmers, you can configure stable operation even in conditions of strong pipe vibration or dusty feed.
• Power versatility. The sensor can be connected to any control phase in the 20–280 V range (AC or DC).

Applications of the DOL 26 CA-P-18-NF-CA-SCR-B-2T capacitive sensor

This model is the standard for certain types of feeders:

• Lines with clip sensor mounting. Many manufacturers (e.g., Chore-Time or Roxell) use holders designed specifically for smooth 18mm sensors.
• Systems with rubber seals. Where tightness is achieved by the tight fit of the rubber to the smooth sensor wall.
• Drop tube fill control. Thanks to the ability to move the sensor, you can precisely adjust the volume of the feed "cap" in the last feeder.
• Replacement of old sensors. Direct replacement of any 2-wire capacitive sensors with an 18 mm diameter.

Why choose the DOL 26 CA-P-18-NF-CA-SCR-B-2T capacitive sensor

If your mounting system is designed for "inserting" rather than "screwing in" — this is the only right choice. You get installation convenience without losing setting functionality.

Mounting and setting up the DOL 26 CA-P-18-NF-CA-SCR-B-2T capacitive sensor

1. Installation: Insert the housing into the mounting hole. Secure it with an external clamp or collet. Do not use force to avoid crushing the housing if the clamp is metal.
2. Electrical: 2-wire connection (series). The sensor works as an automatic switch. Ensure the load does not exceed 500 mA.
3. 2T Calibration:
   - DELAY: Increase the delay time so the motor does not turn on from every auger jolt.
   - SENS: Decrease sensitivity if the sensor falsely triggers on accumulated dust.

Comparison of the smooth version (Ø18) with the threaded one (M18)

Which housing type is better to choose:

The unthreaded model is the choice for systems where maintenance speed and easy feed level adjustment are important.