Flexim PIOX S704 NN Series User Manual

17 Heat Flow Measurement PIOX S70x
UMPIOX_S7V4-6-3EN, 2018-10-10 151
In the BTU mode, additional units of measurement are available for the physical quantity and the heat quantity (see sec-
tion 12.2). The unit of measurement displayed during the measurement will be adjusted automatically:
17.3.5 Automatic Toggling of the Display in the Lower Line
In the BTU mode, it is possible to activate automatic toggling of the display in the lower line. Press key three times
during the measurement. The following physical quantities will be displayed at an interval of 3 s:
• physical quantity selected in the program branch Output Options
• medium temperature in the supply line
• medium temperature in the return line
• difference between the medium temperatures in the supply line and the return line
Press key three times to deactivate the automatic toggling.
17.4 Measurement
Start the measurement as usual.
For the activation of the heat quantity totalizer see section 12.2.
unit of measurement of the heat flow unit of measurement of the heat quantity
kBTU/min kBTU
kBTU/h kBTU
MBTU/h MBTU
kBTU/day kBTU
TON (TH) TH
TON (TD) TD
kTON (kTH) kTH
kTON (kTD) kTD
If no heat flow coefficients are available for the selected medium, an error message will be
displayed. For the input of the heat flow coefficients, see section 14.3.4.
The two temperature inputs are checked and the measured temperatures are displayed.
Press ENTER.
If a temperature cannot be measured (the temperature probe is not connected or is defec-
tive), the error message ?UNDEF will be displayed.
If Fixed input val. has been selected during the configuration of the temperature in-
put, the temperature input (Ts) or the return temperature (Tr) has to be entered now.
For simulations, it is possible to enter both the supply and return temperatures as con-
stants. In this case, do not connect the temperature probes to the transmitter.
Enter the medium temperature. Press ENTER.
The measured heat flow (in the BTU mode Thermal energy) is displayed.
Heatflow
*INVALID MEDIUM*
T1= 90.2 C
T2= 70.4 C
T1=?UNDEF C
T2= 70.4 C
A:Ts manualFIX
0.0 C
A:Heatflow
0.4 kW

Flexim PIOX S704 NN Series Specifications

General

Brand	Flexim
Model	PIOX S704 NN Series
Category	Measuring Instruments
Language	English