Hydronix Hydro-Control VI Operator's Manual page 76

Frequently Asked Questions
A: It is not possible to repair damaged screens onsite. The controller should be sent back to
Hydronix for repair by a qualified technician.
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Q: How do I know what version I have?
A: The firmware version running on the Hydro-Control can be checked in two ways. Either switch
off the controller and turn it back on - the version number is displayed on start up, or alternatively
from the start page press 'Menu' and the version number will then be displayed.
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Q: I have changed the sensing arm on my Hydro-Probe Orbiter. Do I need to recalibrate anything?
A: It will be necessary to calibrate the new sensing arm to the sensor electronics, so that the air
and water factory calibration settings are correct. This process is fully detailed in the Hydro-
Probe Orbiter User Guide. The calibration can be performed using the Hydro-Control VI from
the Sensor Configuration page.
recalibrate recipes, assuming that the sensing arm is fitted at the same angle and height as the
old arm. However the signal should be monitored during the first batches of each recipe to
check that nothing has been affected.
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Q: I have a recipe running that has been calibrated. What happens if I change the gain and offset
in the recipe manually?
A: The moisture displayed is a number that is calculated from the sensors unscaled readings, the
recipe gain and recipe offset. If the gain and offset are changed, then this will affect the
displayed moisture.
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Q: Can I still run in calculation mode without recalibrating if I change my mix design?
A: Any change in the mix design may need a different calibration and so should be run with a
separate Hydro-Control recipe. This might include changes in pigment (colour), ratios of
aggregates, cement supplier or type of admixture. If the mix design is the same but the quantity
changes, then the recipe can be run as long it is updated with batch weights between batches.
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Q: On hot days I have to add extra water to my recipes, is there a way to do this automatically?
A: Each recipe has a temperature compensation coefficient which allows the moisture target to be
changed depending on the temperature of the mix. This can help to maintain consistency of
the mix as the when the temperature increases the concrete becomes less workable, hence
more water is added to increase the slump. The temperature compensation is described in
Chapter 8.
It should be noted that to maintain the water/cement ratio of the concrete the workability should
be controlled using admixtures rather than by changing the amount of water added.
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76 Hydro-Control VI Operators Guide HD0456 Rev 1.7.1
After changing the arm, it should not be necessary to
Chapter 14