16
4 Mounting
MINITRAC 31 • 4 … 20 mA/HART - four-wire
40447-EN-130430
With density measurement, the radiation difference with differing
density is very low. Especially with small tube diameters, the change
is negligible.
Therefore it is important to shield from interfering X-ray radiation. To
protect the instrument against X-ray radiation, it can be be equipped
with an optional lead ring. A later retrofitting of the lead ring is not
possible.
Mass flow rate
The mass flow rate can be determined with the MINITRAC 31 in
conjunction with a flow meter.
1
2
Fig. 6: Mass flow rate measurement
1 Flow meter
2 MINITRAC 31
Point level detection
For level detection, the sensor is generally mounted horizontally at the
height of the requested limit level. Make sure that there are no struts
or reinforcements at this position in the vessel.
Direct the exit beam of the source container exactly towards the
measuring range of MINITRAC 31.
