Endress+Hauser Gammapilot M FMG60 - Page 19

Gammapilot M FMG60 with FOUNDATION Fieldbus Installation
Endress+Hauser 19
3.2.5 Empty pipe detection
Fig. 1: 1: Monitoring detector DG17/27 or FMG60
Mounting the FMG60 or DG17/27 on the FMG60 for empty pipe detection
If the pipe becomes empty as a result of operational processes, the radiation on the detector side can
hit dangerous levels.
• In such instances, the irradiation channel must be closed immediately for reasons of radiation
protection.
• A high local dose rate also causes the detector unit (scintillator and photomultiplier) to age
quickly.
The best way of avoiding such a situation is to mount a second radiometric measuring system that
monitors the radiation intensity. If high radiation levels occur, an alarm is output and/or the source
container is automatically switched off through pneumatic action for example.
FTG470Z
Gammapilot M
1
SPS / PLC