Hygienic RTD temperature sensor TRE.F20

Hygienic RTD temperature sensor TRE.F20

TRE.F20 series temperature sensors are specially designed for measuring the temperature of liquid media in the food industry. Process connection is provided via special weld-on adapters and quick-release milk nut or Tri-clamp adapters made of stainless steel (AISI 316 or AISI 316L), ensuring good washability and the absence of dead zones.

They are manufactured with Pt100 and Pt1000 platinum sensing elements of accuracy classes A and B according to GOST 6651. Wire connection is carried out via a quick-release electrical connector according to DIN 43650, providing fast and easy connection to measuring devices.

Modifications Where to buy?

Temperature sensor TRE.F20-Pt100-A4-G34-D6-L60
TRE.F20-Pt100-A4-G34-D6-L60
  • Sensor type: Pt100
  • Accuracy class: A
  • Immersion length: 60 mm
Temperature sensor TRE.F20-Pt100-A4-G34-D6-L80
TRE.F20-Pt100-A4-G34-D6-L80
  • Sensor type: Pt100
  • Accuracy class: A
  • Immersion length: 80 mm
Temperature sensor TRE.F20-Pt100-A4-G34-D6-L100
TRE.F20-Pt100-A4-G34-D6-L100
  • Sensor type: Pt100
  • Accuracy class: A
  • Immersion length: 100 mm
Temperature sensor TRE.F20-Pt100-A4-G34-D6-L120
TRE.F20-Pt100-A4-G34-D6-L120
  • Sensor type: Pt100
  • Accuracy class: A
  • Immersion length: 120 mm
Temperature sensor TRE.F20-Pt100-A4-G34-D6-L160
TRE.F20-Pt100-A4-G34-D6-L160
  • Sensor type: Pt100
  • Accuracy class: A
  • Immersion length: 160 mm
Temperature sensor TRE.F20-Pt100-A4-G34-D6-L200
TRE.F20-Pt100-A4-G34-D6-L200
  • Sensor type: Pt100
  • Accuracy class: A
  • Immersion length: 200 mm
Temperature sensor TRE.F20-Pt100-A4-G34-D6-L250
TRE.F20-Pt100-A4-G34-D6-L250
  • Sensor type: Pt100
  • Accuracy class: A
  • Immersion length: 250 mm
  • Technical characteristics of hygienic thermal resistances of the TRE.F20 series
    Parameter Value
    Sensor type * (depends on the modification) Pt100 (α=0.00385 °C -1)
    Pt1000 (α=0.00385 °C -1)
    Temperature measurement range (at ambient temperature not exceeding +35 °C) -30...+150 ºC (Class А)
    -50...+150 ºC (Class В)
    Maximum ambient temperature +100 °С
    Maximum operating medium temperature see Dependence on ambient temperature
    Accuracy class * (depends on the modification) Class A: ±(0.15+0.002 ·|t|***) °C
    Class В: ±(0.30+0.005 ·|t|***) °C
    Thermal response time (63.2%) * max 30 s
    Operating pressure max 2.5 MPa
    Electrical insulation resistance at 25 ±10 °С min 100 MΩ
    Measuring current * max 1 mA (Pt100)
    max 0.3 mA (Pt1000)
    Conductor cross-section max 1.5 mm²
    Ingress Protection ** IP65
    Process connection (depends on the modification) process connection E-G12 or E-G34 (male thread G1/2" or G3/4″)
    Immersion probe material AISI 321 (12Х18Н10T)
    Housing Material AISI 304 (08Х18Н10)
    Mean time between failures (MTBF) min 40,000 hours
    Relative air humidity max 90%
    Service life 10 years

    * according to GOST 6651.
    ** according to GOST 14254.
    *** where |t| is the absolute temperature value in °C.


    The dependence of the maximum measurement temperature on the ambient temperature
    The dependence of the maximum measurement temperature on the ambient temperature
  • Connection diagrams of TRE.F20 sanitary RTD temperature sensor
    Three-wire connection
    3-wire connection
    Four-wire connection
    4-wire connection
  • Overall dimensions of TRE.F20 sanitary RTD temperature sensor
    Dimensions of ELHART TRE.F20 sensor (G1/2''), mm
    Dimensions of ELHART TRE.F20 sensor (G1/2"), mm

    Dimensions of ELHART TRE.F20 sensor (G3/4''), mm
    Dimensions of ELHART TRE.F20 sensor (G3/4"), mm

    L can take values from 60 to 500 mm.