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:: Resistivity
TR 420
 
TR-420

Range 2MΩ - 20 MΩ (Choice at order)
Accuracy 1% Full scale
Input 2 probes (option PT100)
Output connection 4-20mA
Connection By terminal
Power 22V or 24V Continuous or 24V Alt.
Consumption 2VA
Probe depending on the range
Enclosure Rack DIN 35 H. 70 x Larg. 55 x P. 110 mm
Load max. 250Ω
Power max. 27mA
Wire sensor 20m max.
Transmission wire 50m max.
Enclosure IP40
Temperature -10°C up to +55°C
     
General features  

The resistivity transmitter « TR-420 » has been developed for qualitative control of the stored or in circulation fluids.

The measure is directly transmitted by 4-20mA. Two ranges are available :

  • 0-20MΩ
  • 0-2MΩ
     
Applications  
  • Water treatment
  • Demineralised water
     
Accessories  
  • 1R52 - Probe 1R52 1/2" (maxi 60°C)
  • 1R31 CT/1R31 - Probe 1R31CT 1/2" (maxi 80°C) ou 1R31
  • 1R47 M1 - Measuring chamber for probe
  • RE1/RE5 - Calibration resistances 1MΩ or 5MΩ
     
Order references  
  • TR-420-220 - Resistivity transmitter 220V
  • TR-420-24 - Resistivity transmitter 24V cc or alt
  • TR-420CT-220 - Resistivity transmitter 220V with temperature compensation
  • TR-420CT-24 - Resistivity transmitter 24Vcc or alt with temperature compensation
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