Resistance (RTD) compact sensor for hygienic applications

  • Hygienic clamp or VARIVENT® connection
  • Compact housing with built-in transmitter and stainless steel sheath (FDA, EC1935/2004 conform)
  • -50…+150°C / -58…+302°F

OPTITEMP TRA-C10 – With clamp connection

Resistance (RTD) compact sensor OPTITEMP TRA-C10 – With clamp connection

The OPTITEMP TRA-C10 is a compact resistance sensor (RTD) with optional integrated transmitter for applications with limited space. The sensor is particularly designed for applications with hygienic requirements, e.g. in the food and beverage industry. It is made of stainless steel (1.4404 / 316 L) and has a surface finish of Ra 0.8 μm. It is best suited for measuring the temperature of gases, liquids and vapour from -50…+150°C / -58…+302°F. The OPTITEMP TRA-C10 is a highly accurate sensor featuring great reliability over the long term, and excellent measuring stability.

Product highlights

  • Hygienic temperature measurement of liquids and gases in confined spaces
  • Dead-zone free stainless steel (1.4404 / 316L) design
  • Surface finish of wetted parts: Ra 0.8 µm (on request: <0.4 µm and electro polish)
  • Long-term stability: ±0.1% of span per year
  • With optional built-in transmitter (4…20 mA)

Typical applications

  • Process applications in the food and beverage industry:
    • Suitable for sanitary applications
    • For temperature measurement of beverages, dairy products or pasty food
    • Temperature control in breweries (mash tun etc.)
    • Temperature control in the sugar dissolving tank
    • Temperature control before separator
    • Pasteurisation control
    • Control after the heat exchanger
    • CIP temperature control

Technical data

Measurement principlesResistance (RTD)
Measured mediaGases, Liquids
Measuring pointMachinery, Pipe, Tank
Measuring insert typeNon-replaceable RTD
Measuring insert replaceableNo
RTD element type1 x Pt100
RTD configuration3-wire, 4-wire (on request)
Temperature sensor connection type optionBuilt-in transmitter, M12 connector
Sheath diametersØ6 mm / 0.23"
Process temperature-50…200°C/


Certificates/Approvals HygienicEC 1935/2004, FDA
NAMUR complianceNE 21, NE 43


Analogue outputs4…20 mA

Process connections

Hygienic connectionsTri-Clamp®: 1", 1 1/2"
Varivent®: N
Clamp (DIN 32676): DN25, DN40
Clamp (ISO 2852): 25, 38