Hydronix Hydro-Control VI Installation Manual page 64

System Design
Admix control
4.3
The effect that an admixture has on the sensor signal will depend on the admixture itself and
the point at which it is added to the mixer. The Hydro-Control has an output for controlling the
addition of the admixture that may be configured using the Admix Signal parameter on the
second page of the System Parameters.
Moisture
Admix Type Set to:
Water
Admix
Admix Enable %
Figure 44: The Admix output signal during a normal mix cycle
When the Admix Signal parameter is set 'Admix Enable %' the Admix output is set high during
the Main Water addition when the percentage of the main water dosed reaches the recipe
parameter 'Admix Enable'. The total water used to calculate the percentage is the calculated
amount (in CALC Mode) or the amount dosed in the previous batch (in AUTO Mode).
This is used to delay the admixture addition until a set amount of water has been dosed. This
can be a requirement given by the manufacturer of the admixture.
When the Admix Signal parameter is set to 'Water' the Admix output is set high whenever the
water is being added to the mixer.
When the Admix Signal parameter is set to 'Admix' the Admix output is set high during the main
water addition phases of the mix cycle. This is to provide backwards compatibility with the
Hydro-Control V.
When the admix signal is set to 'All' the Admix output is set high from the time the Hydro-Control
receives the Start signal until the time that the Hydro-Control outputs the Mix Complete signal.
This is equivalent to the busy output on the Hydro-Control V.
64 Hydro-Control VI Installation Guide HD0455 Rev 1.9.0
START
Pre-wet
Add
Water Dry Mix Time
Cement
Added
Admix Output
All
Point set by the 'Admix Enable'
MIX COMPLETE
Main Water Wet Mix
Addition Time
parameter in the recipe
Chapter 5
Time