SA radiological air monitoring stations

SA – Air Monitoring station

The SA environmental monitor is used for continuous measurement of aerosol activities in all gaseous effluents. It can be fully integrated into environmental radiation monitoring systems.

Radiation type:

Beta and gamma

Detector type beta:

2.000 mm2 large sensitive silicon diode for beta activity

Detector type gamma:

High resolution and very sensitive 1,5 x 1,5” LaBr3(Ce) detector (2.9% for Cs137)

Energy range:

Beta: 80 keV to 3 MeV
Gamma: 50 keV to 2 MeV

Sampling volume:

SA200: 17 m³/h
SA210: 3 m³/h

Filter paper roll:

Millipore

Temperature range:

From –30 °C to +50°C (-22°F to +122°F)

Compensation:

Automatic ambient gamma background compensation and Radon progenies

Alarms / Display:

No display and no locla alarm signaling : connection via Ethernet to an external PC or supervision

Storage:

Database on local embedded computer

Data format:

xml (N42.42 format) files sent to FTP server or direct access to database

Communication:

Embedded PC connection (Ethernet)

Communication options:

Wireless router (GPRS, GSM, Radio, Satellite) for data transfer to a centralization system

Compliance with CEM norms:

EMI emission: EN 61000-6-4
EMI immunity: EN 61000-6-2

Variant:

SA200 / 210 -NG : Noble gas volumetric activity and gamma dose rate (with additional SpectroTRACER 1,5 x 1,5” LaBr3)

Options:

Snow protection and pipe connection

Combined aerosol activity and spectrum measurement
Dynamic compensations of gamma background and natural radon progenies

Redundant communication systems available
Calculation of activity in Bq/m² or Bq/m³ for nuclides indentification

Low power consumption version (SA210) for emergency systems

The SA air monitoring station is used for continuous measurement in all gaseous effluents of particulate volumetric activity.
The sample is pulled by means of a pumping unit (3m³/h or 17m³/h flow rate according to versions) and then transferred to a detection assembly.
The monitor, based on an embedded low power industrial computer, calculates the measured volumetric activity and triggers alarms whenever preset threshold levels are exceeded.
A SpectroTRACER probe can be optionally placed on the top of the monitor to allow both gamma dose rate and measurements and noble gas monitoring.

For SA200 version:

SA 200: beta and gamma particulate
SA200-NG: beta and gamma, noble gas volumetric activity and gamma dose rate (with additional SpectroTRACER NaI(Tl))
Optional heating and ventilation kit
Sampling line extension

For SA210 version:

SA 210: beta and gamma particulate activity
SA 210-I: beta and gamma particulate activity (with specific charcoal filter)
SA210-ING: beta and gamma particulate, noble gas volumetric activity and γ dose rate (with additional SpectroTRACER NaI(Tl) and specific filter)