Laboratory Experiments > Air/Temperatur Control Plant > Technical Data

ATC70 Airstream and Temperature Control Plant

The Mechanical Setup

An inner aluminium tube including an heating element as well as an axial fan with a regulating flap is mounted on top of an acrylic base plate.
A differential pressure transmitter, a PT100 temperature sensor with transmitter as well as an electrical connector box are mounted at the base plate.



Dimension Sizes and Weight of the System:
  • Length : 545 mm
  • Depth : 260 mm
  • Height : 140 mm
  • Weight : 6,3 kg
Measuring Range of the Transmitters:
  • Temperature transmitter : 25 ... 75 °C
  • Pressure transmitter : 0 ... 5 mbar

 

Technical Data:
  • Max. heater power : 116 W
  • Velocity flow range : 0 ... ~1,5 m/s
  • Tube length : 340 mm
  • Tube inner diameter : 50 mm
Actuator

The actuator box mainly contains a power supply, modules to control the fan as well as the heating element and measurement output signals for temperature and airstream. The electronic circuits are housed in a robust metallic box.

Dimension Sizes and Weight of the Actuator:
  • Length : 223 mm
  • Depth : 170 mm
  • Height : 330 mm
  • Weight : 6,9 kg
Power Supply:
  • Mains supply : 230 V AC
  • Consumption : 150 VA
Inputs:
  • Fan control : 4 ... 20 mA
  • Heating control : 4 ... 20 mA
  • Input resistance : 200 Ohm
Overheat Protection
A bimetallic thermorelay switches off the heating element at approx. 90 °C. The heating power is switched off for fan control signal less than 4,15 mA.
Outputs:
  • Measured signal from temperature sensor : 4 ... 20 mA
  • Measured signal from pressure sensor : 4 ... 20 mA
  • 2 supply voltages : 24 V DC
  • Max. working resistance : 600Ω
  • Binary signal for flap position : Potential-free contact (Max. supply 24V)
  • Binary signal heat capacity switch : Potential-free contact (Max. supply 24V)
Potentiometer:
  • internal fan control : 0 ... 100 %
  • internal heating control : 0 ... 100 %

Technical data are subject to change (Date 9-March-2024)