Highlights

General

  • Easy to perform contamination measurements for large floor areas
  • Proportional counter tubes with 2000 cm² active area
  • Reduction of the number of measuring points and thus less effort and cost saving

Features

  • The measuring results are shown on the easy to operate Universal Monitor (UMo II) LB 134 with display and data storage
  • Up to 2400 results with date and time can be stored
  • Alarm thresholds can be set for each measurement mode and each nuclide

The Floor Monitor

The Floor Monitor is available in two versions:

  1. as the system LB 165 for β-γ measurement with sealed Xenon-detector 
  2. as the system LB 166 for α-β measurement with P10-flow-through counter tube
  • The monitor is adjustable in the height to maximum 18 mm

Product Overview

LB 165 / LB 166

The Floor Monitor is available in two versions: as the system LB 165 for β-γ measurement with sealed Xenon-detector and as the system LB 166 for α-β measurement with P10-flow-through counter tube. This version has a gas supply containing a 3l (P10) gas bottle, pressure reducer and flow meter all integrated on the floor monitor. To protect the detector for uneven underground the monitor is adjustable in the height to maximum 18 mm. The minimum distance to the floor is 6 mm.

The measuring results are shown on the easy to operate battery Universal Monitor (UMo II) LB 134 with display, data storage and USB interface. The LB 134 with display is mounted on a column and allows best reading facilities.

detector_of LB 165/166 is zoomed

active detector area 570 mm x 380 mm

LB 134

Lb 134 zoomed front side

Universal Monitor (UMo II) LB 134

Technical Data

 LB 165LB 166

Counting gas

xenon

P10-flow-through
Entrance window12 µm Titan3 µm Mylar
β Efficiency (90Sr/90Y)approx. 35 %approx. 45 %
α Efficiency (241Am)N/Aapprox. 25 %
Weight24.5 kg

24.5 kg

Backgroundapprox. 200 cpsapprox. 100 cps
Dimensions700 mm x 600 mm700 mm x 600 mm
Active area570 mm x 380 mm570 mm x 380 mm
Universal Monitor UMo LB 134  
Data memory2400 measured values with date & time 
CommunicationUSB (1 device, 1 host for memory stick), RS 485 
Measurement modesratemeter, scaler-timer, search mode 
Protection classIP 53 (according to IEC 60529)