Siemens SITRANS F series Betriebsanleitung Seite 42

Connecting
3.5 Sensor Installation
Ltn Menu Cell
This view only menu cell shows the distance in inches or millimeters between the front faces
of the sensors along the axis of the pipe. If you are mounting the sensors without a track or
spacer bar, you have to space them according to this value. Note that Ltn may be a negative
number for direct mount on very small pipes where the sensor spacing overlaps.
Preparing the Pipe
1. On a flat surface, attach the Spacer Bar to a Mounting Frame so that the Reference Hole
on the Spacer Bar fits over the metal post on the platform of the frame. Tighten the
clamping screw.
2. Slide the second Mounting Frame onto the other end of the Spacer Bar and align the
Number Index Hole with the metal post on the platform. Then tighten the clamping screw.
Ensure that the angled sides of both frames face away from each other.
3. Wrap a Mounting Strap around the pipe. Make sure to position it so there is easy access
to the Mounting Strap Adjusting Screw.
4. At the mounting location, place the Mounting Frame/Spacer Bar Assembly on the pipe so
that it rests on the top of the pipe.
5. Engage the end of the Mounting Strap with the Mounting Strap Adjusting Screw.
6. Slide strap under the spring clip of one of the Mounting Frames.
7. Tighten the Mounting Strap Screw enough to take up all of the slack, but not enough to
prevent rotation of the assembly.
8. Rotate the assembly on the pipe to the final conditioned location, ensuring that it is
straight along the pipe axis. (Refer to the sensor orientation diagram)
9. Tighten the mounting straps to seat the assembly firmly on the pipe. Do not over tighten.
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Repeat procedure for the other Mounting Frame
FUS1010 IP65 NEMA 4X & IP66 NEMA 7 Quick Start
Operating Instructions, 07/2014, A5E03086486-AD
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