Posted in | Pressure Sensors

Absolute Single Turn Measurement with ACW4 Sensors

Sensata's BEI Sensors ACW4 sensors offer absolute single turn measurement with an IO-Link output in an over-molded, modular, flexible, and environmentally friendly shape.


Process Automation; Factory Automation.


  • Simple device replacement with Data Storage capability
  • Standard IP65 protection (IP69K option)
  • Extended operating temperature range from -40 °C to 85 °C  
  • Universal power supply through IO-Link Master
  • With its two-part design, the ACW4 IO-Link absolute single-turn position sensor offers maximum flexibility during installation
  • IO-Link with COM3 transmission rate
  • Easy commissioning and configuration with IO-Link
  • Robust and excellent resistance to shock and vibration
  • Robust magnetic technology
  • Standard M12 connector
  • Resolution: programmable 12 bits per turn



Table 1. Source: Sensata Technologies, Inc.

. .
Terminations PUR cable with M12 5-pin connector
Housing Technomelt PA638 black
Weight 0,150 kg



Table 2. Source: Sensata Technologies, Inc.

. .
Electrical Angle 360°
Output Function IO-Link V1.1, COM3 (230,4 kBaud)
Minimal Cycle Time 1 ms
Resolution single-turn: 12 bits
Accuracy +/-0.3% on 360°
Repeatability +/-0.1% on 360°
Supply Voltage 18 to 30 Vdc
Current Requirements <40 mA
Protection Overvoltage Protection: Yes
Reverse Polarity Protection: Yes
Short Circuit Protection: Yes
EMC IEC 61000-4-2 Electrostatic discharge (ESD) 4 kV, 8 kV
IEC 61000-4-3 Electromagnetic fields 10 V/m (80 MHz - 1 GHz), 3 V/m (1.4 GHz - 2 GHz), 1 V/m (2 GHz - 2.7 GHz)
IEC 61000-4-4 Electrical fast transients (burst) 1 kV
IEC 61000-4-6 Conducted disturbances induced by RF-fields 10 VEMF



Table 3. Source: Sensata Technologies, Inc.

. .
Protection Class (Sealing) IP65
Temperature Range Operating -40 °C to 85 °C
Storage -40 °C to 85 °C
Shock ≤ 2000 m.s-2 (6ms half-sine)
Vibration ≤ 200 m.s-2 (55 … 2000 Hz)

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