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Monitor the trend of the measured EC (Control EC) in relation to the calculated
EC setpoint in the 'Activities' summary.
Calibrate the mixer valve as follows:
1. How to set the optimum gain:
If differences between the measured EC and calculated EC setpoint are
quickly corrected, proceed to step 2.
If the measured EC swings high above the calculated EC setpoint, then
adjust the gain to a lower value (at least 15).
If it takes too long for the measured EC to reach the calculated EC
setpoint, then adjust the gain to a higher value (up to 300).
2. How to set the optimum integration time:
Make sure the integration time is not set too low if the water remains in
the mixer tank for a long period of time. Generally, it can be said that
the integration time should equal 2/3 x time (sec.) that the water
remains in the mixer tank.
If the measured EC equals the calculated EC setpoint, then the integration
time is set at the optimum value.
If the two values differ and it takes too long for the measured EC to reach
the calculated EC setpoint, then adjust the Integration time to a lower
value (least 15).
If the two values differ and the measured EC keeps fluctuating around the
calculated EC setpoint, then adjust the integration time to a higher value
(up to 300).
Figure 3-7
EC gain
Aqua CX300
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Содержание Aqua CX300
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