Wika 54_twintemp Bedienungsanleitung PDF herunterladen (Seite 8)

14004105.01 05/2011 GB/D/F/E

8 WIKA operating instructions model 54, Twin-Temp

3. Specications

Specications

Model 54, Twin-Temp

Measuring element Bimetal helix and Pt100

Nominal size 63, 80, 100, 160

Instrument version

■

Model A5x

■

Model R5x

Rear mount (axial)

Lower mount (radial)

Permissible ambient

temperature

at the housing max. +60 °C (other versions

on request)

Working pressure

■

Continuous load (1 year)

■

short term (max. 24 h)

Measuring range (DIN EN 13190)

Scale range (DIN EN 13190)

Case, ring

Stainless steel 1.4301

Stem, process connection

Stainless steel 1.4571

Ingress protection

IP 65 per EN 60529 / IEC 529

IP 66, liquid-lled

For further specications see WIKA data sheet TV 15.01 and the

order documentation.

4. Design and function

4.1 Description

This series of thermometers is designed for installation in pipes,

vessels, plant and machinery.

The „Twin-Temp“ combined bimetal thermometer oers two

measuring systems in one instrument.

A bimetal thermometer enables the visualisation of measured values

on site without power supply, while, in addition, the integrated Pt100

resistance sensor provides an electrical signal for further processing.

This design is particularly recommended for safety-critical applica-

tions and in case of limited space where the process can be opened

only at one place.

3. Specications / 4. Design and function

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