LB 200 Becquerel Monitor for activity measurement in foodstuffs

The LB 200 is a very simple scintillation measuring system for the assessment of gamma activity in foodstuffs, liquids and bulk goods in Bq/l. Its microprocessor electronics allows the non-professional user to directly determine the radioactivity of gamma emitting radionuclides in liquids and solid matter in an easy and reliable manner down to approx. 20 Becquerel per liter or per kilogram in 1 hour measuring time.

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Features

The Becquerel Monitor LB 200 features:

  • detection limit approx. 20 Bq/l
  • sample volume 0.5 liter
  • small dimensions
  • easy and error-free operation
  • display of the statistical accuracy for each measuring result
  • operated by dry batteries or mains supply

 

 

 

Details

The Becquerel-Monitor LB 200 comprises the detector part including amplifier and high voltage unit, the evaluation electronics including power supply, and accessories for accomodating and shielding the samples to be measured. Its microprocessor electronics allows the non-professional user to directly determine the radioactivity of gamma emitting radionuclides in liquids and solid matter in an easy and reliable manner down to approx. 20 Becquerel per liter or per kilogram in 1 hour measuring time.

The LB 200 Monitor uses its microprocessor electronics for self-checking purposes. As soon as the monitor is switched on, it runs an automatic self-test. In addition, the detector failure, range overflow and battery exhaustion will be displayed.

Moreover, the Monitor is capable of storing the background measurement result and to subtract it automatically from the next sample measurement.

The statistical accuracy is displayed for each measuring result. The user him/herself decides how accurate - and thus how long - the measurement schould be. In any case, the approximate result can be read off a few seconds after the start of the measurement.

An interface for connection of a printer or a PC are available as special equipment for further processing and documentation of the measuring data.

Specifications

 

Detector Unit
Radiation detectorNaI(TI)-crystal (25 mm Ø x 25 mm)
DimensionsBottom 95 x 120 mm
Height 185 mm (with lead shielding 240 mm)
Weight                                       approx. 0.8 kg

 

Measuring Unit
Displaybright transmitted light LCD, 2 x 16 character, 74 x 28 mm
Measuring range0.1 to 999 cps or 1 to 9999 Bq/l
Calibaration factorpreset inside the instrument via code switches, the factors for individual radionuclides are listed in the operating manual; manufacturer's setting for 137Cs
Voltage supply                             via 6 V mains adapter or built-in dry batteries (4 x LR 20 Mono)
Operation life time batteriesapprox. 80 h
Box casing with combined handle/support220 x 230 x 70 mm (W X D x H), weight approx. 1.5 kg
Connections formains adapter, probe cable, printer or computer (optional)
Lead Shielding
Wall thickness    15 mm
Height115 mm                   
Diameter120 mm
Weightapprox. 8 kg
Beaker
Plastic, useful volume 0.5 l

 

Accessories
Order Information & Accessories                                                          Ident. No.
LB 200-RS Marinelli beakerPlastic, 0.5 l volume,
1 piece
08533
LB 200-RS Marinelli beakerPlastic, 0.5 l volume,
10 each
08533
LB 200-IP Interface cardRS 232 incl. cables for printer and PC23958
LB 200-KS calibration standardPlastic, Marinelli geometry, 0.5 l
137Cs, 1 kBq
(no licence required)
14324

 

Applications

Measuring of gamma activity in

  • foodstuffs
  • liquids
  • bulk goods
Download
Brochure
Format Size
LB 200 en PDF 732.34 KB