DOL 26 amniotic level sensor, CA-P-M18-NF-CA-NPN-2-1T, 105156

What is the DOL 26 CA-P-M18-NF-CA-NPN-2-1T capacitive feed level sensor and what is it used for?

The DOL 26 CA-P-M18-NF-CA-NPN-2-1T capacitive sensor is a specialized model with an NPN transistor output (switching "negative"). It is designed for integration into automation systems that use "sinking input" logic, which is often found in imported microclimate and feed distribution controllers.

The model is equipped with one trimmer (1T) for sensitivity adjustment, which simplifies operation: the time delay here is fixed, so the operator only needs to calibrate the sensor for feed recognition. Thanks to the NO + NC output (4 wires), you can choose the necessary operating logic (normally open or normally closed) directly during connection.

Key advantages of the DOL 26 CA-P-M18-NF-CA-NPN-2-1T capacitive sensor

• NPN Standard. Unlike PNP sensors (which output +24V), this sensor closes the signal wire to "negative" (ground). This is critically important for compatibility with certain types of PLCs.
• Simplified Setup (1T). The absence of a time regulator eliminates human error. You adjust only "sees/does not see" feed, and operational stability is ensured by the factory algorithm.
• Universal Output (NO + NC). The 4-core cable allows implementing both start and stop functions using the same device.
• Threaded Fixation (M18). Rigid mounting with nuts guarantees that the sensor will not shift from vibration, which is especially important for precise dosing systems.

Applications of the DOL 26 CA-P-M18-NF-CA-NPN-2-1T capacitive sensor

This model is indispensable in specific technical conditions:

• Replacing sensors on Asian equipment. Many controllers from Asia work exclusively with NPN logic. A PNP sensor will simply not work there.
• Systems with "common ground". Where control is carried out by closing the input to the power negative.
• Simple hoppers with stable flow. Where complex setup of delay timers is not required, and only the fact of feed presence is sufficient.
• Repair purposes. Thanks to NO+NC outputs, this sensor can replace any other NPN M18 sensor, regardless of its initial logic.

Why choose the DOL 26 CA-P-M18-NF-CA-NPN-2-1T capacitive sensor

Choose this model if your equipment specification requires an NPN input. You get the reliability of DOL 26 with the electrical polarity you need and setup simplicity (1 trimmer).

Mounting and connection of the DOL 26 CA-P-M18-NF-CA-NPN-2-1T capacitive sensor

1. NPN Scheme (Important!): The load (relay/PLC input) is connected between the Power Positive and the Sensor Output (Black or White wire). The sensor closes the circuit to "Negative".
2. Logic selection:
   - Black wire: NO (closes to negative on feed).
   - White wire: NC (opens from negative on feed).
3. Calibration (1T): Fill the hopper with feed. Turn the single "Sens" trimmer until the LED changes state. Setup is complete.

Comparison of NPN and PNP versions

Why these models should not be confused:

Ensure your controller supports NPN logic before ordering this model.