Mounting Instructions - Siemens SITRANS LR 200 Kurzanleitung

s.
To provide optimum signal conditions on a manhole cover, locate the antenna off-center
relative to the cover, typically 100 mm (4") from the side of the manhole.
• Use the 100 mm (4") shield on nozzles that are 100 mm (4") in length, or shorter.
• Use the 250 mm (10") shield on nozzles that are 250 mm (10") in length, or shorter.

Mounting instructions

WARNING:
For pressure applications, it is necessary to use PTFE paste (or
other appropriate thread-sealing compound) and tighten the process
connection beyond hand tight.
• Simply screw SITRANS LR 200 into the process connection, and hand tighten.
The maximum torque is 40 N-m (30 ft-lbs).
Rod Assembly (PTFE rod antenna version only)
Optional
Extension
PTFE paste is supplied with
PTFE rod antenna versions
(non-sanitary type).
7ML19985QG81 SITRANS LR 200 (PROFIBUS PA) – QUICK START MANUAL
minimum
100 mm (4")
Notes:
• Water or process fluids must not enter the
connecting threads: this could cause reflections
at the connection, which will appear as false
100 mm (4")
echoes.
• Apply a small amount of PTFE paste to the
antenna threads before threading the antenna
together, and tighten slowly. Ensure that the rod
50 mm (2")
sections mate securely with no gaps. Do not
apply too much PTFE paste or the parts will not
mate securely.
• Do not use wrenches or pliers. Hand tighten only
(except in pressure applications: see warning
above).
minimum
10 mm (0.4")
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