- Continuous, non-contact measurement in liquids, solids, suspensions or sludges etc.
- Applications under extreme measuring conditions, e.g. high pressure, high temperature, corrosiveness, toxicity, abrasion
- All kinds of process vessels, e.g. reactors, autoclaves, separators, acid tanks, mixers, cyclones, cupola furnaces
- Applications in food processing industry without additional requirements or approvals
- System integration via HART, PROFIBUS PA and FOUNDATION Fieldbus
- Use in safety functions for max. point level detection and min. point level detection
- Compact transmitter: one instrument for all measuring tasks
- Highest availability, reliability and safety, even for extreme process and ambient conditions
- Highest sensitivity and accuracy at lowest dose rates (ALARA principle)
- Optimum adjustment to the respective application via a variety of detectors:
- point detector
- rod detectors of different lengths
- Ex d, Ex e or Ex i current output for simple plant integration
- Stainless steel housing 316L for heavy-duty applications
- SIL2/3 approval in accordance with IEC 61508 for max. point level detection and min. point level detection
- WHG approval
- Temperature compensation for density measurements
- Gammagraphy detection
- Easy menu-guided onsite operation via four-line plain text display
- Easy commissioning, documentation and maintenance/diagnosis with the operating program FieldCare
The radiometric measuring principle is based on the fact that gamma radiation is attenuated when it penetrates a material. Radiometric measurement can be applied for different measuring tasks:
Point level detection
A gamma radiation source and a Gammapilot M are mounted on opposite sides of the vessel at the
height of the desired level limit. The Gammapilot M converts the received radiation intensity into a
percentage. "0%" means that the radiation path is completely free, i.e. the level is below the limit.
"100%" means that the radiation path is completely covered, i.e. the level is above the limit.
Continuous level measurement
A gamma radiation source and a Gammapilot M are mounted on opposite sides of the vessel.
The Gammapilot M calculates the level (percentage) from the radiation intensity. Detectors of
different lengths are available to adapt the system to the measuring range. Also, multiple detectors can
be interconnected (cascading).
A gamma radiation source and a Gammapilot M are mounted on opposite sides of the vessel in a height
such that both liquids are irradiated. The radiation source may also be mounted inside the vessel.
The Gammapilot M calculates the position of the interface layer from the intensity of the received
radiation. Its value is between 0% (lowest possible position) and 100% (highest possible position).
Density or concentration measurement
A gamma radiation source and a Gammapilot M are mounted on opposite sides of a measuring tube.
The Gammapilot M calculates the density or concentration of the medium from the intensity of the
received radiation. The unit can be freely selected.
If an additional temperature sensor is connected, the Gammapilot M accounts for the thermal
expansion of the medium. That means, it does not output the measured density directly. Instead it
calculates the density which the medium would have at a certain standard temperature defined by the
Furthermore, the density signal of the Gammapilot M can be combined with the signal of a volume
flow meter, e.g. Promag 55S. From these two signals it is possible to calculate the mass flow.