17 SuperUser mode
17.7 Temperature-based thermal energy rate cut-off FLUXUS F502TE
2020-05-29, UMFLUXUS_F502TEV1-5EN
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17.7 Temperature-based thermal energy rate cut-off
With the temperature-based thermal energy rate cut-off, all measured temperature differences between the supply and re-
turn line that are lower than a defined value are set to zero. The thermal energy rate is also set to zero. The value of the
thermal energy totalizer remains unchanged.
• Select the menu item Special Funct.\SYSTEM settings\Measuring\Miscellaneous.
• Press ENTER until the menu item Thermal low cut is displayed.
• Select on to activate the temperature-based thermal energy rate cut-off or off to deactivate it.
• Press ENTER.
• If on is selected, enter the limit of the temperature difference. All temperature differences between the supply and return
line that are lower than this value will be set to zero. Enter zero to work without the temperature-based thermal energy
rate cut-off.
• Press ENTER.
17.8 Manual reset of the totalizers
If the manual reset of the totalizers is activated, the totalizers can be reset to zero during the measurement by pressing C
3 times, even if a program code is activated.
• Select the menu item Special Funct.\SYSTEM settings\Measuring\Miscellaneous.
• Press ENTER until the menu item 3xC clear totals is displayed.
• Select on to activate the manual reset of the totalizers or off to deactivate it.
• Press ENTER.
17.9 Display of the totalizer sum
The sum of the totalizers for both flow directions can be displayed in the upper line during the measurement.
• Select the menu item Special Funct.\SYSTEM settings\Measuring\Miscellaneous.
• Press ENTER until the menu item Show ΣQ is displayed.
• Select on to activate the display of the totalizer sum or off to deactivate it.
• Press ENTER.
If the display of the totalizer sum is activated, the sum ΣQ of the totalizers can be displayed in the upper line during the
measurement.
Special Funct.\SYSTEM settings\Measuring\Miscellaneous\Thermal low cut
Special Funct.\SYSTEM settings\Measuring\Miscellaneous\Thermal low cut\Thermal flow ->0
Special Funct.\SYSTEM settings\Measuring\Miscellaneous\3xC clear totals
Notice!
The manual reset of the totalizers remains activated after the deactivation of the SuperUser mode.
Special Funct.\SYSTEM settings\Measuring\Miscellaneous\Show ΣQ
Fig. 17.2: Display of the totalizer sum
ΣQ 13.2 m3
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