SENSseries LB 480 Level measurement
BERTHOLD TECHNOLOGIES GmbH & Co. KG
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Volume 1 1 About this User’s Manual
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1.4 Terms Used in this User’s Manual
CrystalSENS Standard point detector version in the SENSseries LB 480.
UniSENS Standard rod detector version in the SENSseries LB 480.
SuperSENS Highly sensitive detector with large volume polymer scintillator 150
x 150 mm for large pipe or tank diameter.
Tow e rS EN S Rod detector with an especially large potential measuring length. In
contrast to multi-detector configurations, only one detector is
required here.
NaI detector NaI = sodium iodide crystal = scintillator
Scintillation detectors are very sensitive probes for gamma radia-
tion.
Isotope Substance of the radiation source, e.g. Cobalt 60 (Co-60) or Cesium
137 (Cs-137).
Count rate Value for the number of pulses standardized to one second.
Background The count rate caused by the natural environmental radiation.
Cps Unit for the count rate: Counts per second.
Factory setting In the factory setting, all parameters are preset with default values.
In most cases, this makes calibration of the detector a lot easier.
Nevertheless, a calibration must always be carried out.
mSv Milli-Sievert: The unit indicates the dose rate (dose equivalent).
mrem Milli-rem (roentgen equivalent in man): traditional unit for the dose
rate (100 mrem = 1 mSv).
MBq Mega Becquerel: The unit indicates the activity of a source. Each Bq
corresponds to one disintegration per second, i.e. 1 MBq equals one
million disintegrations.
mCi Milli-Curie: Traditional unit for the activity of a source
(1 mCi = 37 MBq).
ATEX Atmosphère explosive: is used as a generic term for the ATEX Prod-
uct Directive 94/9/EC and the ATEX Workplace Directive 1999/92/
EC. The directives contain provisions for equipment and compo-
nents for use in explosion hazardous areas.
FM Factory Mutual: an American industrial property insurance company
that, among other things, issues certifications in the field of explo-
sion protection.
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