Vega MINITRAC 31 - Page 17

17
4 Mounting
MINITRAC 31 • Foundation Fieldbus
41782-EN-211203
L
L
L
1
4
a
b
2
3
Fig. 6: Installation possibilities - Density measurement or concentration meas-
urement
1a Radial raditiona - vertical mounting
1b Axial radiation - Horizontal mounting or when the lead cover is used as
protection against ambient radiation
2 Inclined radiation for extention of the radiated length (L)
3 Extension of the radiated length (L) by adding a tube angle piece as meas-
uring distance
4 Integrated lead cover as protection against ambient radiation - the instru-
ment is hence shielded laterally
Withdensitymeasurement,theradiationdierencewithdiering
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retrottingoftheleadringisnot
possible.