User's Manual

Table Of Contents
Installing/mounting
4.3 Installation instructions
SITRANS LR250 (HART)
Operating Instructions, 01/2014, A5E32220602-AB
21
4.2.5
Device orientation
Bypass pipe installation
Stillpipe installation
Vent
Align front or back of device with stillpipe slots
1)
Align front or back of device with
vents
1)
Slots
1)
Horn antenna version shown as example
4.3
Installation instructions
WARNING
For pressure applications, it will be necessary to use PTFE tape or other appropriate thread
sealing compound, and to tighten the process connection beyond hand-tight. (The
maximum recommended torque for Threaded versions is 40 N-m (30 ft.lbs.) See Flange
bolting, Flanged encapsulated antenna only (Page 22) for FEA recommended torque
values.)
Note
On devices with a removable head, there is no limit to the number of times a device can
be rotated without damage.
When mounting, orient the front or back of the device towards the closest wall.
Do not rotate the enclosure after programming and vessel calibration, otherwise an error
may occur, caused by a polarity shift of the transmit pulse.