Technical
The James Trident™ represents a break-through in modern moisture measurement technology. By utilizing the latest microwave and microprocessor technology, the Trident™ can determine the moisture content of sand, gravel, crushed stone and other fine and coarse aggregate. Simply insert the prongs of the probe into the material to be measured and instantaniously the percentage of moisture content is shown on the easy to read display.

The Trident™ Microwave moisture meter uses a five prong sensor to measure the complex dielectric constant of the material encompassed by the outer four prongs. As the dielectric constant of water is four to eight times greater than most aggregates, changes in water content directly effect the sensor output. An average of five to ten readings is normally taken in order to ensure a valid reading. This output is then converted by the integrated microprocessor and moisture content is dis-played directly as a percentage of dry weight.

The unit comes calibrated for both sand and aggregate. It can also be programmed with up to ten different materials by the user. For highest accuracy, the unit should be programed for the material being tested. Simple to use WIN95/WINNT software is provided for calibrating the unit to the various materials.

Finally, the Trident™ can store over 150 readings. Storage is complete with the time and date for future reference. Data can be recalled via RS-232 interface to a personal computer running The James Trident™ T-90 Moisture Meter Computer display of the Trident™'s actual readings of moisture content within a sand test sample.