Burkert FLOWave S 8098, Руководство по эксплуатации

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SAW sensor - Parameter
Type 8098
13.8.6 Resetting the default values of the error limits, the warning
limits and the hysteresis of the density factor
The default values of the error limits, the warning limits and the hysteresis of the density factor are the following:
• high error value: 1.6000
• low error value: 0.5000
• high warning value: 1.5000
• low warning value: 0.6000
• value of the hysteresis: 0.0100
To reset the default values of the error limits, the warning limits and the hysteresis of the density factor, do
the following:
→
Select the device in the navigation area.
→
SAW sensor
→ Parameter
→
Add. meas. values
→ Density factor
→
Limits
→ Reset to default
→
Finish
The limit values and the hysteresis value are reset.
13.8.7 Setting the temperature compensation to measure the density
factor
In order that the density factor of the liquid stays constant whatever the liquid temperature, the density
factor must be temperature compensated.
You can only set the temperature compensation for 1 of the liquids that may flow through the pipe.
The device has 2 types of temperature compensations to measure the density factor:
• according to an equation that is specific to water, i.e. when water flows through the pipe, the density
factor will always be equal to 1, whatever the water temperature. The equation for water cannot be
changed. See chpt. 13.8.9 Activating the temperature compensation for water.
• according to an equation of 5th order for which you can set the 5 constants. See chpt. 13.8.8 Setting the
temperature compensation for a liquid other than water.
By default, the temperature compensation is made according to an equation that is specific to water and
that cannot be changed.
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