German P+F Beijiafu NC series capacitive proximity sensor

German P+F Beijiafu NC series capacitive proximity sensor

1、 Core features of NC series

1. Multi material testing

• Can detect metals, plastics, liquids, powders, wood, etc., with wide applicability.

2. adjustable sensitivity

• Adjust the detection threshold through potentiometer or IO Link (some models) to adapt to different materials.

3. Strong anti-interference ability

• Not affected by target color, transparency, or surface characteristics such as reflectivity and moisture.

4. sturdy and durable

• Stainless steel or PBT plastic casing, protection levelIP67/IP69K(Some models), suitable for harsh environments.

5. Multiple output modes

• NPN/PNP、 Normally open (NO)/normally closed (NC) options are available, compatible with mainstream PLCs.

2、 Naming Rules for NC Series Models

ToNCB4-12GM50-E2For example:

• NCSeries name (capacitive sensor).

• 4Shell diameter (4mm, with additional 8mm, 12mm, etc.).

• 12Detection distance (12mm, for standard targets).

• GMInstallation method (GM=Non flush, FL=flush).

• 50Cable length (50cm, optional 20/40/50cm, etc.).

• E2Output type (E2=NPN normally open, V1=PNP normally closed).

3、 Main models and technical parameters

4、 Comparison of NC Series vs. Inductive Sensors (NBN/NCB)

5、 Typical application scenarios

1. level detection

• Detect the liquid level of the water tank and oil tank (such as NC8-18GM50 detecting liquid through plastic walls).

2. packaging industry

• Counting the passage of transparent films and plastic bottles (such as NC4-12GM50).

3. Food and pharmaceuticals

• Detect the presence of filling liquid (IP69K model suitable for cleaning environment).

4. wood processing

• In place inspection of wooden boards or plywood (such as NC12-30GM50).

5. chemical industry

• Level monitoring of powder or granular materials (anti dust interference).

6、 Selection Guide

1. Testing material

• Metal: stable detection distance; Non metallic materials (such as plastics) require a shorter nominal distance.

2. Installation environment

• Wet/easy to clean environment selectionIP69KModel (such as NC15-30FL40).

3. output signal

• NPN（E0/E2）Japanese PLCs (Mitsubishi, Omron).

• PNP（V1/V3）European PLC (Siemens, Beifu).

4. Sensitivity adjustment

• Partial model supportIO-LinkCan remotely adjust parameters.

7、 Frequently Asked Questions (FAQ)

Q1: Can the NC series replace inductive sensors?

→cannotInductive (NBN/NCB) is more stable for metal detection, while capacitive (NC) is suitable for non-metallic or mixed scenarios.

Q2: Why is the distance shortened when detecting plastics?

The dielectric constant of plastic is lower than that of metal, so it is necessary to reduce the installation distance or increase the sensitivity.

Can NC8-18GM50-E2 detect glass?

Okay, but the glass has a low dielectric constant and needs to be tested closely (the actual distance may only be 1-2mm).

Q4: Can it be used in high temperature environments (>70 ° C)?

The standard model is limited to 70 ° C, and special models (such as NC-H series) should be selected for high temperatures.

8、 Recommended alternative models

German P+F Beijiafu NC series capacitive proximity sensor