Hydronix Hydro-Control VI, Руководство по установке

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Hydro-Control VI Installation Guide HD0455 Rev 1.9.0 99
Appendix C Glossary
Analogue Output
The analogue outputs are continuously variable voltages or currents that can be configured to
output the sensor’s moisture or unscaled output to a batch control system using an analogue input
module.
Automatic Calibration (AutoCal)
To simplify fitting a new sensor arm to a Hydro-Probe Orbiter, the sensor can be automatically
calibrated. This sets the air and water values for the arm. The sensor face must be clean, dry and
obstruction free to run the automatic calibration.
Averaging
During a mix cycle, the Hydro-Control takes an average value at the end of the mix times. The
time the averaging is taken over can be defined on the system parameters pages.
Backup/Restore Settings
The mix log and recipe and system parameter databases can be backed up to or restored from a
memory stick.
Calibration
The Hydro-Control calculation mode is calibrated by running mixes in pre-set mode and adding
fixed quantities of water, and changing this quantity depending on the resulting material. When a
good mix has been obtained, the recipe can then be calibrated from the mix log.
Dry Mix Time
This is the time taken for the Dry Mix, the first mix that occurs after the pre-wet water has been
added. The Dry Mix Time can be short for AUTO Mode but should be longer if using CALC Mode.
If a two step addition is selected, then the dry mix time is done twice, once after any pre-wet water
is added and the second after the first main water addition (this is stopped when the water addition
gets to the admixture addition point).
Dry Weight Moisture
This is the concrete industry standard measure of moisture content. It is calculated as the
percentage of the weight of the moisture in the dry weight of the material. As an example, if you
had 1000kg of completely dry sand and added 100kg of water to it then the sand would be at 10%
moisture. The sand and water together would weigh 1100kg.
Main Water Addition
This is the water that is added after the dry mix before the wet mix is done.
Material
The material is the physical product that is being measure by the sensor. The material must be
flowing and must completely cover the sensor’s ceramic faceplate.
Moisture
The water held in and around the material. Moisture is defined as a percentage using the weight
of the water and the weight of the material it is with. Although the material weight can either be
dry weight or wet weight the standard for the concrete industry is to use the dry weight.