Heinrichs Messtechnik GmbH
OPERATING MANUAL TMU-W / UMC4
Page 67 of 118
7.2.6.1
Density measurement on/off
This function allows the operator to activate density measurement. After selecting the Density measurement
on/off function, press “Enter” to display the following selection field:
Measurement
[on]
The operator can choose between the following settings:
on
density measurement is switched on
off
density measurement is switched off
fixed
density measurement is switched off; a fixed replacement value will be displayed and
used for calculating the volume flow
To confirm and apply the selection, press “Enter”.
If density measurement is switched on and the message “Density not calibrated” is displayed, no density
calibration was carried out by the vendor.
Note:
Density measurement can only be activated if density calibration has been performed.
If no density calibration has been performed, the density and volume flow values will
be set to “0.0” in the MEASURED VALUES functional class and the message “Density
unknown” will be displayed
7.2.6.2
Density unit
This function allows the operator to define the physical unit for all display functions and the density lower- and
upper-range value. After selecting the Density unit function, press “Enter” to display the following selection
field:
Density unit
[g/l]
The operator can choose between the following units:
g/l, kg/m³
kg/l
g/cm³
lbs/ft³
lbs/USG, lbs/USB
xxx
Press “Enter” to confirm and apply the selection.
A conversion factor can be entered as a substitute for a not available density as described in the after-following
section 7.2.6.3, “Factor programmable density unit” on page 68.
