54733-10BA2L
2 – 154 02.2017
1 System Description Volume 2
1.2 SENSseries Hardware
1.2.1 Detector
The measuring system SENSseries LB 480 comprises one detector
and the evaluation unit, both accommodated in a sturdy stainless
steel housing.
Fig. 1-2 Design of the SENSseries LB 480
Cable entries M20 or ½“ NPT
Preamplifier & HV generation
Photomultiplier
Scintillator
Evaluation electronics
4–20mA + HART
®
digital signal
Power supply
Terminal compartment
Irradiation window
(always aligned towards the source)
Collimator for
CrystalSENS
Component Description
Scintillator Detecting Gamma radiation.
Photomultiplier, preamplifier, HV generation
and evaluation electronics
Conversion of the flashes of light into electrical signals, conversion to liq-
uid level, density or limit value.
Power supply Power supply unit in two versions:
100V to 240V
AC
24V
DC
Terminal compartment Includes all terminals which are necessary for the installation of the
detector. For detailed information please see in chapter 3 on page 2-217.
Thread of the cable entries 4 pcs M20 (ATEX) or 4 pcs ½" NPT (FM/CSA) for feedthrough of the con-
nection cable.
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