Gammapilot M FMG60 FOUNDATION Fieldbus
Installation
Hauser
21
4.2.5
Empty pipe detection
1
2
3
A0018077
1
Gammapilot M
2
Monitoring detector FTG20 or FMG60
3
PLC
Mounting the FTG20 or FMG60 on the FMG60 for empty pipe detection
If the pipe becomes empty as a result of operational processes, the level of radiation on the
detector side can reach dangerous levels.
• In such cases, the radiation emission 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 to avoid 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.
4.2.6
Installation conditions for flow measurement
Measurement of solids flow
In conjunction with a density meter, such as Hauser's "Gammapilot M", Promag
55S also determines the rate of solids in terms of mass, volume or percentage. The
following order information is required for this purpose for Promag 55S: Order option for
the "Solids flow" software function (F-CHIP) and order option for a current input.
r
C
r
S
1
2
r
M
m
V
A0018093
2
Solids flow measurement (m) using a density meter and a flowmeter. If the density of the solids ( ρ
s
) and
the density of the carrier liquid (ρ
c
) are also known, the solids flow rate can be calculated.
1
Flowmeter (Promag 55S) -> volume flow (V). The solids density ( ρ
s
) and the density of the carrier liquid (ρ
c
)
also have to be entered in the transmitter
2
Density meter (e.g. "Gammapilot M") -> total density ( ρ
m
) consisting of the carrier liquid and solids
