Flexim PIOX S72 Series User Manual

14 User modes
PIOX S72* 14.2 ExpertUser mode
141
UMPIOX_S72xV1-9EN, 2022-05-15
14.2.2 Max. signal amplification
In order to prevent disturbing and/or pipe wall signals (e.g., if the pipe has run empty) from being interpreted as useful
signals, it is possible to define a max. signal amplification.
If the signal amplification is greater than the max. signal amplification:
• the physical quantity cannot be determined and the measured value is marked as invalid
• a hash symbol will be displayed after the unit of measurement (in case of a normal error, an interrogation point is
displayed)
• Select the menu item Special settings in the program branch Options.
• Press ENTER until the menu item Max. amplification is displayed.
•Select Off if no limit of the signal amplification is to be used.
•Select Default if no customized inputs are to be made.
•Select Customized to define a limit for the max. amplification.
• Press ENTER.
• Enter a value for the max. signal amplification.
• Press ENTER.
14.2.3 Pipe signal detection
When evaluating the plausibility of the signal, it is checked whether the sound speed is within a defined range. The
absolute threshold of the fluid sound speed used is calculated from the greatest of the following values:
• absolute threshold, default value: 1848 m/s
• value of the sound speed curve of the fluid at the operating point plus relative threshold, default relative threshold:
200 m/s
• Select the menu item Special settings in the program branch Options.
• Press ENTER until the menu item Pipe signal detection is displayed.
•Select Off to measure without pipe signal detection.
•Select Default if no customized inputs are to be made and the default values are to be used.
•Select Customized to define the values of the pipe signal detection.
• Press ENTER.
• Enter the value of the absolute threshold for the particular measuring channel.
• Press ENTER.
Fig. 14.1: Flow velocity outside the valid range
1 – physical quantity
2 – flow velocity
Notice!
If the limit of the flow velocity +Flow velocity limit is too low or -Flow velocity limit is too high, a
measurement might be impossible because most of the measured values will be marked as invalid.
Options\Special settings\Max. amplification
Options\Special settings\Pipe signal detection
Options\Special settings\Absolute threshold
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Flexim PIOX S72 Series Specifications

General

Brand	Flexim
Model	PIOX S72 Series
Category	Measuring Instruments
Language	English