Level Measurement
The indication of continuous level and the monitoring of alarm levels is realised through the non-contact measurement principle. External, non-intrusive arrangements allow uncomplicated measurement on high pressure vessels or those containing corosive products. Various configurations are available for continuous level management, which are suitably arranged around a specific vessel. The arrangement with the rod source and point detector with Nal scuntillation crystal [fig 3] offers a linear process signal through the custom activity distribution on the rod source. Alternatively an arrangement with a rod detector with plastic scintillation material and a point source [fig 4] may be chosen. For the monitoring of alarm levels a system consisting of point source and Geiger Muller counter tube [fig 5] is available. A microprocessor controlled by relay module in 19"-rack technology produces the desired signal evaluation for the level alarm.
Neutron Mositure Measurement
For the continuous determination of moisture in bulk solids the method of moderastion of neutrons is used. This is realised either by installing a bunker probe [fig 8] in the vessel or by mounting a surface probe [fig 9] to the wall of the vessel containing the product to be measured. A representative moisture signal is established by the detection of all water molecules in the large volume measured, irrespective of their physical or chemical bond. Color, temperature, pressurte, pH value or other electrolytic components in the product do not have any effect on the moisture measurement.
Call ABM Equipment Company, Inc.
for more information on process control measurement
503-248-0711