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Installation
4
Installation
4.1
Installation conditions
Reduction in the operating life of the display due to high temperatures
‣ Ensure sufficient cooling of the device in order to prevent the build-up of heat.
‣ Do not operate the device for long periods of time in the upper marginal temperature range.
The process transmitter with control unit is designed for use on the top-hat rail (IEC 60715 TH35).
Connections and outputs are fitted on the top and bottom of the device. Inputs are located on
the top, while outputs and the connection for power supply are located on the bottom. Lines
are connected via labeled terminals.
4.1.1
Operating temperature range
The maximum operating temperature range is -20 to +60 °C (-4 to +140 °F) when installed in
the open; this range is reduced accordingly when installed in enclosed housings or in series.
If the orientation is not vertical (→ 4.1.2), the maximum operating temperature is reduced to
+40 °C (+104 °F).
40
y
x
-20 ... +40 °C
(-4 ... +104 °F)
18 Operating temperature ranges depending on installation
48
-20 ... +60 °C
(-4 ... +140 °F)
Nivotester FTR525
-20 ... +50 °C
(-4 ... +122 °F)
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