On-Line Process Monitoring Systems [OLM Series]

The OLM series on-line monitors are designed to continuously measure the quantity of radioactive gamma activity in a liquid or gaseous stream. The system is attached to the exterior of the process pipe and has no intrusion in the pipe and therefore no impact on the pipe flow. This setup is functional for pipe sizes between 25 to 178 mm (1 to 7 in.) in diameter. For larger pipes, CANBERRA offers floor or plinth mounted configurations which fit horizontal or vertical process pipes.

The on-line sampler is designed to fit the pipe curvature and mounts directly on the pipe. It includes a MD Series scintillation detector and a isotopic check source assembly for routine operability checks. The output from the detector is amplified by the PA300E preamplifier and sent to the wall mounted iR7040 intelligent ratemeter. The iR7040 provides complete local display and control of the monitoring channel, as well as local indication of alarm trips and system malfunctions. Optional remote ratemeters or alarm annunciators can be connected to the local unit.

The calibration cycle for the OLM is 18 months. The extended calibration cycle is achievable because of a simple functional design with no moving parts, use of low current consuming electronics, and technological advantage of CANBERRA's exclusive gain stabilization circuit that automatically compensates gain shifts caused by changes in temperature and aging.

 

Features

• Continuous liquid and gas radioactivity monitoring in pipes
• Configurable to fit various pipe sizes
• Modular design
• Gain stabilized scintillation detector
• Extended dynamic range
• Excellent linearity and accuracy