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Measuring of 137Cs in liquids and bulk goods by a 25 mm Ø × 25 Nal(TI) Crystal.
Through the attributes of the device a low detection limit of 20 Bq/l (t = 1 h) can be achieved.
- 40K suppression by implementing a second energy window.
- The LB 201 can be operated as a stationary or a mobile device and is thus flexible for your application.
- The evaluation unit of the LB 201 can display the measurement results in cps, Bq/kg and Bq/l, associated with a time stamp.
- Sophisticated PC software tailored for your LB 201 helps you create protocols and manage measurements.
- The LB 201 is calibrated by the manufacturer and can be checked annually using the optional calibration source.
The use of a Marinelli sample cup ensures a consistent measuring geometry. The plastic cup is ready for food samples, liquids and smaller bulk goods.
The automatic 40K suppression helps with achieving a more reliable result. A second energy window is implemented in order to subtract the influence of the high energy gamma emitter from the measurement result.
|Type||NaI(Tl) Crystal 25 mm Ø x 25 mm|
|Probe||with built-in threshold amplifier|
and high-voltage generator
|Operating Voltage||5 VDC ±5 %|
|Dimensions||Electronics housing (120 mm × 120 mm)|
Height: 190 mm with lead shielding
attached: 240 mm
|Temperature range||Storage: –20 to 55 °C|
Operation: 5 to 40 °C
Transport: –20 to 55 °C
|Rel. humidity||10 to 85 %, non-condensing|
|+10 °C/h, –8 °C/h|
|Altitude||Max. 2000 m above sea level|
|Weight||approx. 0.8 kg (without lead shielding)|
|Dimensions (H × Ø)||approx. 130 mm × 136 mm|
|Weight||approx. 8 kg|
|Measuring beaker||Plastic, useable volume 0.5 l|
(H × Ø) approx. 99 mm × 114 mm
Monochrome LCD 192 x 64 pixels
|Keyboard||Membrane keyboard, 6 buttons, 4 soft|
keys, 1 × device on/off, 1 × sound/LCD
lighting on/off 2 LEDs for alarm display
and funktione control
|Data storage||2400 measured values with date and time|
|Dimensions||200 × 400 × 300 (L × B × H in mm)|
|Weight||1400 g (included Batteries)|
|–20 °C to +40 °C|
|–20 °C to +55 °C|
|Rel. Humidity||10 % to 85 % (non-condensing)|
|External pressure||500 hPa to 1300 hPa (in operation)|
|Communication||USB (1 device, 1 Host for Memorystick),|
|Alarms||Acoustic: Piezo oscillator 2.5 to 3 kHz|
alarm as an interrupted continuous tone,
single pulse (switchable) as tone burst
|Warnings||LED signals when threshold values are|
exceeded or function display. Text
messages in the display for exceeding the
measuring range and detector failure.
|59974||Becquerel Monitor LB 201, incl. 1 ×|
marinelli beaker 0.5 l, 1 × aluminium
transport case, PC software set and
|8533||1 × Marinelli sample beaker, plastic,|
useable volume 0.5 l
|71872||10 × Marinelli sample beaker, plastic,|
useable volume 0.5 l
|14324||Calibration source (nuclide: 137Cs)|