TQ423 proximity sensor

1.33 mV/µm or 0.417 µA/µm (12 mm range), −25 to 140 °C, Ø25 mm tip, standard-mount, 100 bar (tip).

The TQ423 proximity sensor is a high-quality, high-reliability sensor for use with an EA403 extension cable and IQS450 signal conditioner, which provides either a voltage output or a current output.

The TQ423 is a standard-mount, high-pressure sensor that is designed and built for long-term use in extreme environments characterised by high temperatures, high pressures and/or hazardous areas (potentially explosive atmospheres).

  • Designed for the contactless measurement of relative vibration and axial displacement in turbines, compressors, pumps and fans
  • 12 mm measurement range (Ø25 mm)
  • −25 to 140 °C operating temperature, IP68 protection rating, 100 bar pressure rating
  • 1.0, 5.0 or 10.0 m integral coaxial cable
  • Certified for use in potentially explosive atmospheres
PARAMETER Value (Imperial | Metric)
Linear measurement range 0.47 in | 12 mm
Operating temperature range −13 to 284 °F | −25 to 140 °C
Sensor (tip) diameter Ø0.98 in | Ø25 mm
Mounting options Standard mount
Integral cable length 3.3, 16.4 or 32.8 ft | 1.0, 5.0 or 10 m
Pressure 1450 psi | 100 bar
Protection rating IP68
Hazardous area certifications Ex ia, Ex nA