TQ412 proximity sensor

8 mV/µm or 2.5 µA/µm (2 mm range), 4 mV/µm or 1.25 µA/µm (4 mm range), −40 to 180 °C, Ø8.2 mm tip, reverse-mount.

The TQ412 proximity sensor is a high-quality, high-reliability sensor for use with an EA402 extension cable and IQS450 signal conditioner, which provides either a voltage output or a current output.

The TQ412 is a reverse-mount sensor that is designed and built for long-term use in extreme environments characterised by high temperatures and/or hazardous areas (potentially explosive atmospheres).

Note: The TQ402 and the TQ412 have the same specifications and performance characteristics but are intended for applications with different installation (mounting) requirements: the TQ402 is a standard-mount sensor and the TQ412 is a reverse-mount sensor.

  • Designed for the contactless measurement of relative vibration and axial displacement in turbines, compressors, pumps and fans
  • 2 or 4 mm measurement range (Ø8.2 mm sensor)
  • −40 to 180 °C (−40 to 356 °F) operating temperature, IP68 protection rating
  • 0.5, 1.0, 1.5, 2.0, 5.0 or 10.0 m integral coaxial cable
  • Certified for use in potentially explosive atmospheres
PARAMETER Value (Imperial | Metric)
Linear measurement range 0.08 or 0.16 in | 2 or 4 mm
Operating temperature range −40 to 356 °F | −40 to 180 °C
Sensor (tip) diameter Ø0.32 in | Ø8.2 mm
Mounting options Reverse mount
Integral cable length 1.6, 3.3, 4.9, 6.6, 16.4 or 32.8 ft | 0.5, 1.0, 1.5, 2.0, 5.0 or 10 m
Protection rating IP68
Hazardous area certifications Ex ia, Ex nA