Installation Instructions; Step 1: Transducer Holder Position - Siemens SITRANS FSS100 Installation Manual

Installing/mounting
5.10 Installation instructions
5.10

Installation instructions

5.10.1

Step 1: Transducer holder position

The first step in the installation procedure is to calculate the transducer holder position. The step
is completed by the following actions:
1
2
3
Note
The actual procedure depends on the size of the pipe
• DN ≤ 1000: Calculation by use of paper
• DN > 1000: Calculation without use of paper
Determining wall thickness and circumference
The following pipe dimensions must be known before calculating the transducer position.
1. Circumference (C)
2. Wall thickness (t)
3. Outer diameter of the pipe (D
The circumference is determined using the measuring tape. Make sure that the pipe's surface
is plane and free of dirt etc. The measuring tape must fit snugly around the pipe. Read the
circumference (C). Repeat the measurement several times to avoid inaccuracies.
The wall thickness is obtained by measuring a similar pipe whose wall thickness is accessible,
or by consulting the relevant standard.
38
Determination of wall thickness and circumference of the pipe
Marking of the top line of the pipe
Pipes up to DN 1000:
Marking the transducer holder position on
the pipe using paper
) = C/π
u
Pipes larger than DN 1000:
Marking the transducer holder position di‐
rectly on the pipe
Installation Manual, 12/2023, A5E52595000-AA
SITRANS FSS100