Capacitive Material Detection

The KI503A uses capacitive sensing to detect materials without mechanical contact. Its 15 mm sensing range provides a practical detection zone for industrial applications. The sensor can be adjusted using its integrated potentiometer. This allows the switching point to be matched to the actual installation. The capacitive principle is suitable for detecting both conductive and non-conductive materials.

Antivalent Output

The KI503A provides a PNP antivalent output configuration. This provides complementary switching information for machine-control applications. The output supports up to 200 mA continuous current. Short-circuit protection and overload protection are integrated. These features simplify connection to suitable industrial PLC inputs and control circuits.

Mechanical Construction

The sensor uses an M30 × 1.5 threaded housing with an overall length of 150 mm. A potentiometer is provided for sensing adjustment. The specified tightening torque is 10 Nm. Its threaded construction supports secure installation in industrial machines and material-handling equipment. The extended 150 mm body provides a practical configuration for installations requiring additional sensor length.

Key Features

Capacitive sensing principle

15 mm sensing range

PNP electrical design

Antivalent output

10–30 V DC supply

200 mA switching current

2.5 V maximum voltage drop

0.1 mA residual current

10 Hz switching frequency

Short-circuit protection

Overload protection

M30 × 1.5 threaded housing

150 mm overall length

Integrated potentiometer

10 Nm tightening torque

Applications

Material presence detection

Liquid detection

Bulk-material detection

Tank monitoring

Machine automation

Conveyor systems

Packaging equipment

Industrial material handling

Sensitivity Adjustment

The KI503A includes a potentiometer for manual adjustment of the capacitive sensing response. This allows the switching point to be adapted to the actual target material and mounting conditions. Adjustment is useful where different materials produce different capacitive characteristics. The 15 mm sensing range provides a defined working zone for detection. This makes the sensor suitable for configurable industrial sensing applications.

Electrical Reliability

The KI503A operates from a 10–30 V DC supply and uses protection class III construction. Reverse-polarity protection helps prevent wiring-related electrical damage. The PNP output supports 200 mA continuous current. Short-circuit protection is specified as pulsed, with overload protection also provided. These features improve reliability in automated machine-control environments.