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Installing/mounting
4.2 Installation notes
SITRANS Probe LR with mA/HART
20
Operating Instructions, 05/2019, A5E32337711-AC
Precautions
●
Avoid proximity to high voltage or current wiring, high voltage or current contacts, and to
variable frequency motor speed controllers.
●
Avoid interference to the emission cone from obstructions or from the fill path.
●
Avoid central locations on vessels.
①
Process temperature: –40 to 80 °C (–40 to 176 °F)
②
Locking collar over threaded connection; secured by three 2 mm Allen set-screws.
When the locking collar is secured, it prevents the enclosure rotating on the threaded connec-
tion.
③
Ambient temperature (surrounding enclosure volume) –40 to 80 °C (–40 to 176 °F)
④
Handheld programmer
⑤
Nameplate location
⑥
Process device tag
⑦
Customer-supplied flange
Avoid central locations on vessels
For vessels with conical or parabolic tops, avoid mounting the device at the center. The
concavity of the top can focus echoes into the center, giving false readings.