IQS450 signal conditioner

Signal conditioner for use with proximity sensors (TQ).

The IQS450 signal conditioner is a high-quality, high-reliability conditioner for use with the TQ4xx proximity sensors.

The IQS450 is highly configurable (measurement range, sensitivity, total system length), and provides either a current output or a voltage output. It is designed and built for long-term use in environments characterised by hazardous areas (potentially explosive atmospheres).

  • Signal conditioning for TQ proximity sensors
  • Very wide frequency range (DC to 20000 Hz)
  • Configurable transfer function
  • Current output for signal transmission over long distances or voltage output for signal transmission over medium distances
  • Certified for use in potentially explosive atmospheres


PARAMETER Value (Imperial | Metric)
Output type Current (2-wire) or voltage (3-wire)
Measurement system TQ proximity
Sensor TQ proximity sensors
Frequency range DC to 20000 Hz
Linearity See performance curves in data sheet
Total measurement system length 3.3, 16.4 and 32.8 ft | 1, 5 or 10 m
Operating temperature range −22 to 185 °F | −30 to 85 °C
Protection rating IP40
Hazardous area certifications Ex ia, Ex nA