21 Heat flow measurement
21.3 BTU mode FLUXUS F60*
2017-10-16, UMFLUXUSF60xV5-0EN
212
• Select sign if the sign of the heat flow is to be considered, absolute, if the absolute
value of the heat flow is to be displayed.
• Press ENTER.
• Select the temperature input to be assigned to the supply temperature.
• Press ENTER.
• Select the temperature input to be assigned to the return temperature.
• Press ENTER.
21.3.3 Input of a constant temperature
If the supply or return temperature is known and constant during the whole measure-
ment, this temperature can be entered in the transmitter as a constant value.
The temperature inputs are configured as follows:
• Select
Special Funct.\SYSTEM settings\Proc. inputs\Link temperature
.
• Press ENTER.
• Select the list item
Fixed input val.
if the supply temperature is known and constant.
• Press ENTER.
• Select the list item
Fixed input val.
if the return temperature is known and constant.
• Press ENTER.
• Repeat the steps for all measuring channels on which a measurement is being made.
The constant value of the temperature is entered in the program branch Measuring be-
fore the start of the measurement.
Special Funct.\...\Thermal energy
Special Funct.\...\A:T-Supply\Input T1
Special Funct.\...\A:T-Return\Input T2
Special Funct.\SYSTEM settings\Proc. inputs\Link temperature
Special Funct.\...\Link temperature\T-Inlet\Fixed input val.
Special Funct.\...\Link temperature\T-Fluid/Outle\Fixed input val.
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