Continuous frostmonitor

TFL611F200

TFL611F600

The TFL 611 frost-protection monitor (with capillary-tube sensors) is used to protect large-surfaced equipment – such as heating coils, water pipes and air ducts – against freezing by monitoring the temperature, and to report the risk of frost by means of an output signal of 0 to 10 V. The frost-protection controller of the TFL 611 controls the relevant regulating unit. A fully-active capillary-tube sensor measures the lowest temperature that occurs over a length of at least 250 mm along the capillary tube. The lower switching point is set via the setpoint adjuster with scale. The capillary-tube sensor is made of copper.

Technical Description

  • Output: 0...10V=  max. ± 1 mA
  • Input: 0...10V=  max. ± 0.1 mA
  • Sensor length: 2 / 6 m
  • Weight: 0.34 / 0.41 kg
  • Measuring range: 0...15 °C / 0...10V
  • Switching difference: 2 K
  • Setpoint range: 1...10 °C
  • Power supply: 24V ± 20%