Brochure for the LB 9140 Moving Filter Monitor
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The particulates monitor LB 9140 is used to measure airborne Alpha-/Beta particulates in the presence of naturally occurring (Radon) activity and fluctuating gamma backgrounds.
The portable monitor consists of following main building blocks:
The filter advance is driven by a stepper motor unit, which allows continuous advancement of the filter tape at user selectable speeds (5/10/12.5 and 15 mm/h). Alternatively the filter can be advanced in step wise mode with user selectable time intervals.
|Structural shape||300 x 300 x 530 mm³ (W x D x H)|
|Dust collection area||25 x 25 mm²|
|Construction material||alum side & back plate, Plexiglas cover front|
glass fiber particulates filter to DIN Whatman N° 10
roll 12 m x 50 mm, Core 25 mm diameter
|Autonomy||> 3 months at 5 mm/h speed|
low maintenance (> 10.000 h)
silent operation (< 60 dB(A) at 1 m)
pump head max. -440 mbar
typical operating -160 mbar
|Flow rate||typical 3.3 m³/h at NTP|
(Refer to LB 5340 Flyer)
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Berthold Technologies GmbH & Co.KG
Calmbacher Str. 22
75323 Bad Wildbad
Tel.: (+49) 7081 177 0
Fax: (+49) 7081 177 100