CV28Nis a fixed monitor designed for simultaneous measurements of ,
and contamination on staff leaving a controlled area, on objects or
on clothes.
Features
CTHIR homologation
andclothes contamination measurement
-X environment monitoring
Automatic or manualcontamination threshold
environment compensation1.8
Technical characteristics
Detector type: Gas flow proportional counter
Surface sensitivity in c/s forBq/m2, typical values according to
ISO 7503 :
156keV14C20
225keV137Cs22
511keV36Cl55
709keV90(Sr+Y)60
318keV60Co30
Output (2) 239Pu: 50%
Probe detection surface:175 cm2
Detection limits according to ISO 7503(first and second level
error: 2.5%):
239Pu0.02Bq/cm2
36Cl<0.2Bq/cm260Co ≤0.4Bq/cm2in a background of 0.1Sv/h
Dimensions
Box: 334 x 234 x 165 mm,
Ergonomic rotating cane, diameter: 600mm, weight: 13kg
Probe: 210 x 135 x 30 mm + handle, detection surface: 175 x 100 mm,
weight: 0.9kg
Constraints
Gas supply:Ar-CH4(90%-10%) ≈1l/h orAr-CO2(90%-10%) ≈1l/h,
overpressure 0.2bar, temperature range: +5°C to +45°C, max relative
humidity 95% without condensation
Power supply230V-50Hz (or 110V-60Hz on demand), consumption: 25VA
Alternatives
CM28: , and contamination monitor for hands and tools
CC28: Contamination monitor for feet
CS28: Contamination monitor for floors, mounted on an ergonomic
carriage with speed control and double detector with permanent
background compensation.