Maximum Process Temperature Chart - Siemens SITRANS LR460 Operating Instructions Manual

Technical reference
A.5 Maximum process temperature chart
A.5

Maximum process temperature chart

Internal temperature
Internal temperature must not exceed +85 °C (+185 °F).
To check maximum and minimum temperatures recorded via SIMATIC PDM, open the menu
View – Peak Values, and click on the temperature tab. The peak temperatures indicate the
extent of change required to the installation in order to provide a reliable thermal-operating
zone for SITRANS LR460.
For example, if the internal temperature exceeds the maximum allowable limit, a sun shield
or a longer nozzle may be required.
To check temperature peaks via the handheld programmer, press (#6) to view internal device
temperature on the LCD secondary display.
To check process minimum/maximum temperatures via the handheld programmer:
1. Press Mode to open PROGRAM mode, and key in 34 for Quick Access, or use ARROW keys to
navigate to Input–Meas Lim. Press RIGHT Arrow.
2. Press DOWN Arrow until values for Proc T Min and Proc T Max are displayed.
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Operating Instructions, 10/2021, A5E42035355-AB
SITRANS LR460