Specifications; Design And Function - WIKA Obsolete 54 Manual De Instrucciones

3. Specifications / 4. Design and function

3. Specifications

Specifications
GB
Measuring element
Nominal size
Instrument version
Model A5x
■
Model R5x
■
Permissible ambient
temperature
Working pressure
Continuous load (1 year)
■
short term (max. 24 h)
■
Case, ring
Stem, process connection
Ingress protection
For further specifications 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 offers 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.
8
Model 54, Twin-Temp
Bimetal helix and Pt100
63, 80, 100, 160
Rear mount (axial)
Lower mount (radial)
at the housing max. +60 °C (other versions
on request)
Measuring range (DIN EN 13190)
Scale range (DIN EN 13190)
Stainless steel 1.4301
Stainless steel 1.4571
IP 65 per EN 60529 / IEC 529
IP 66, liquid-filled
WIKA operating instructions model 54, Twin-Temp