SITRANS FCS200
Operating Instructions, 02/2011, A5E02508199-01
27
Troubleshooting/FAQs
8
8.1 General information
Incorrect and unstable measurements, especially at low flows, are typically a result of an
unstable zero point due to:
● Incorrect installation
● Vibrations/Cross talk
In the following a 2 steps guide to troubleshooting is provided:
Step 1 Preliminary application inspection
Step 2 Application improvement
The guide will enable you to trace the reason for incorrect measurements and to improve the
application.
8.2 Step 1: Inspecting the application
The first step in the troubleshooting procedure is to check for some easily resolved
problems.
Check that:
● Sensor and Sensorprom memory unit correspond (serial numbers)
● The sensor is properly installed.
● The sensor is located in a vibration-free position. Vibrations can disturb the sensor and
therefore cause measurement error.
Resolving step 1 problems
1. Make sure that the serial numbers on the sensor and the Sensorprom memory unit are
identical.
2. Make sure that the sensor is installed as described in the installation chapter (Page 15) of
the sen
sor manual.
3. Flush the pipe systems and the sensor for several minutes at maximum flow rate to fill in
the process media.
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