Heinrichs Messtechnik GmbH
Page 78 of 122
OPERATING MANUAL TMU / UMC3
7.2.6.12
Temperature coefficient
In order to calculate the reference density using the process density, the temperature coefficient of the fluid
density must be known. In order to improve the resolution and facilitate data entry, the unit of the temperature
coefficient is set to 10
-5
1/K.
Temp. coeffic.
00.00 E-5/K
The current density temperature coefficient value in 10
-5
1/K will be displayed and can be changed between
the two modes by toggling the arrow keys.
Pressing the “
” key confirms the entry.
7.2.6.13
Reference temperature
In order to calculate the reference density, the temperature to which the density relates is needed. The
temperature for fuel oil usually is 15 °C.
Ref. temperature
015.00 °C
The reference temperature will be displayed in °C and can be changed by toggling the arrow keys.
Pressing the “
” key confirms the entry.
7.2.6.14
Operating pressure
This function has been prepared for the consideration of gas equations for the measurement of reference
density and volume for gases. In this software version, it will not be used for calculations.
operat. pressure
001.00 bar
The current value process pressure will be displayed in bar and can be changed by toggling the arrow keys.
Pressing the “
” key confirms the entry.