aqua A-POOL-CHLORO AW96CL-HC897 Manuel D'installation Et D'entretien page 28

PANNELLO A-CHLORO AW96CL–HC897
Set point in advanced mode, functions F4, & F5.
Set point 1 & 2, can be used in simple on/off mode as previously selected, but if more precise
•
control without interference switching is required, then an advanced mode can be introduced into
the set pointoperation which ensures that the control is more precise. This is particularly useful
when dosingpumps or solenoid valves are employed. The set point's switchingof the relays cam
be influencedby setting the Hysteresis, in a several ways. They can be equipped whit an upper
and lower threshold, within which the switching operation will be inhibited. This can be in the form
of a threshold adjustment, time delay, or a combination.
Threshold, Hysteresis and delay time adjustement set point 1 & 2.
Press the FUN button 4 times in quick succession, to access the Threshold/hysteresis and time
•
delay adjustement sequence for SET POINT 1, The display will show F4 with either an A or a d,
according to setting procedures above, if A shows the function is activated and you can proceed
to adjust the hysteresis on set point No.1. If d shows press the UP arrow to change to A, and
then proceed.
Press the SET button, and an alternating display of the original reading and the threshold
adjustment, S^^(max) will result whilst the green LED at set point one will flash. To adjust the
threshold, press the UP or DOWN buttons, until the desired reading is reached, and then press
SET again.
The display will now alternate between the previous value and S__(min), with flashing LED. As
before, press UP or DOWN again, followed by the SET button. The display will now alternate
between reading and hysteresis adjustement H^^(max) with flashing LED. Use the
DOWN buttons to set the hysteresis anywhere form 0 to 0.99 ppm units, and press SET. Now
the H__ (min) is accessed and adjustded by pressing UP or DOWN buttons followed by SET.
Now the delay time, indicated by del deL will be accessed. The action of the relay can be
delayed, and the delay interval can be adjusted by pressing UP or DOWN buttons to give a
delay time of between 0 to 255 second, followed by SET
advanced mode setting for set point 1, and the green LED 1 will have stopped blinking, to be
replaced by the No.2 LED.
Set point 2 will now be blinking, but no "advanced mode" set point adjustements can be made until
the FUN button has been pressed 5 times in quick succession to display F5A o d, ensure that A
shows to activate the function by pressing the UP button, and then repeat the process exactly as
for set point 1.
Proprotional relay output:
Press the FUN button 6 times in quick succession to display F6 ( A or d). press the UP or DOWN
buttons to give A (activated) , or d (deactivated). When activated the relay on set point 3 will
pulse on and off proportionally over a short cyclical time period. The on time and off time within
this cycle, is adjusted automatically according to the difference between the set point value, and
the system's displayed ppm. It reversible to operate either aboveor below the set point.
E.g. If the set point is set to 1.00 ppm, and the display value in 0.00 ppm, the relay will be on all of
the time. As the concuctivity value rises, (due to corrective dosing), the on time reduces and the
off time increases proportionally. In this example, the on time at the displayed of 0.50 ppm will
be 50% of the cycle, and at 1.00 ppm the dosing will stop completely. In practice, the dosing
system will modulate to provide the correct level of clorine control dosing for a given set of
circumstance, and / or flow rate of liquid require treatment.
•When the flow sensor is not activated (led unlighted) the proportional exit remain fixed at 4 mA
Proprotional milliamp output signal:
With F6 activated , as well as the proportional relay output, a proportional isolated milliamp signal
is availablefrom the No.3 set point. Ie 4 milliamp at the set point and 20 milliamp at 1.00 ppm unit
away on the set point. This signal is reversible before.
ADSP7000612
Activating set point 3 in proportional modes F6
04/08/2011 Rev.1.2
to confirm. This concludes the
UP or
pag. 28