DOL 26 Amnesty Grain sensor CA-P-18-NF-CA-PNP-2-2T, 105120

What is the DOL 26 CA-P-18-NF-CA-PNP-2-2T (NO+NC) capacitive sensor and what is it used for?

The DOL 26 CA-P-18-NF-CA-PNP-2-2T capacitive sensor is the most functional low-voltage model in the lineup. It combines setting precision (two trimmers) and maximum connection flexibility thanks to the complementary output (NO + NC).

This sensor operates on direct current (10-30 V DC) and provides a PNP signal. Its main advantage is the presence of two signal lines simultaneously: one works on closing (Make), the other on opening (Break). This allows integrating the sensor into any automation scheme without the need to buy separate models for different tasks.

Key advantages of the DOL 26 CA-P-18-NF-CA-PNP-2-2T sensor

• Double logic (NO + NC). The sensor has a 4-core cable. You choose during installation how it will react to feed: close the contact or open it. You can use both signals simultaneously.
• Full control (2T). Unlike simplified versions, there are two regulators here: Sensitivity (sensitivity to feed type) and Delay (time delay for protection against pulsations).
• PNP Standard. Ideal compatibility with industrial controllers (PLC) and relay automation operating on the "control plus" standard.
• Ø18 mm Housing. The compact size allows installing the sensor in narrow necks, drop tubes, and feeders.

Applications of DOL 26 CA-P-18-NF-CA-PNP-2-2T

This model is a "universal soldier" for complex systems:

• Complex control algorithms. Where the controller requires line integrity confirmation (using both NO and NC channels).
• Repair kits. One such sensor in stock replaces two different models (separate NO and separate NC).
• Systems with inverse logic. Where one signal is needed to start the auger, and the opposite for the alarm lamp.
• Precise dosing. Thanks to the delay setting (2T), the line stop moment can be calibrated with second-level precision.

Why choose the DOL 26 PNP (NO+NC) model

You choose this model when you need maximum functionality. It is a professional tool that allows implementing any logical scheme "on site" by simply choosing the required wire.

Installation and connection of DOL 26 PNP-2-2T

1. Cable pinout:
   - Brown: + (10-30V DC)
   - Blue: - (GND)
   - Black: NO Signal (Closes on feed)
   - White: NC Signal (Opens on feed)
2. Logic selection: Connect the black or white wire to the controller/relay input depending on the task. Be sure to insulate the unused wire.
3. 2T Setup: First set the sensitivity (Sens) so the sensor sees the feed. Then adjust the timer (Time) to avoid frequent triggering due to auger vibration.

Comparison of NO+NC version with single-mode analogs

What is the benefit of using a 4-wire model:

The PNP-2-2T model is the most reliable solution for professional automation systems where full control is required.