19 Troubleshooting FLUXUS F70x
UMFLUXUS_F7V4-6-2EN, 2017-10-01 165
19.6 Problems with the Totalizers
The values of the totalizer are too high
See Special Function\SYSTEM settings\Measuring\Quantity recall. If this menu item is activated, the val-
ues of the totalizer will be stored. The totalizer will continue with this value at the start of the next measurement.
The values of the totalizer are too low
One of the totalizers has reached the upper limit and has to be reset to zero manually.
The sum of the totalizers is not correct
See Special Function\SYSTEM settings\Measuring\Quant. wrapping. The sum of both totalizers (through-
put) transmitted via an output is not valid after the overflow (wrapping) of one of the totalizers.
19.7 Problems During the Heat Flow Measurement
The measured temperature values differ from the actual values.
The temperature probes are not sufficiently insulated.
On a pipe with a small diameter, the temperature probe is lifted from the pipe surface by the insulation foam.
The measured absolute value of the heat flow is correct but has the opposite sign.
Check the assignment of the supply and return temperature to the temperature inputs (see section 16.2 or 16.3).
The calculated heat flow differs from the actual heat flow although the measured flow and temperature values are
correct
Check the heat flow coefficients of the medium (see section 13.3.4).
19.8 Data Transmission
The file with the transmitted measuring data contains meaningless strings
The transmission parameters of the transmitter and the transmission program are not identical. Adjust the transmission
parameters of the transmitter (see section 12.2.4) and of the program FluxData (see section 12.2.7) or of the terminal pro-
gram.
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