PoolWarden Manual www.poolwardentraining.com 530-205-4520 22
pH1 and pH2 Control Relays
In the Relay Setup Menu scroll down to pH1 or pH2 and press
Enter
. The
following reviews each command within a pH Relay selection that is set up as
Acid (change to base in the Relay control Types Menu). The other less common
control types such as Base follow a very similar relay programming and
command structure.
⧫
Manual Time 00:02:00:
Is the amount of time you can set a relay to turn on
manually (Default Setting 2 Minutes). To turn the relay on manually you have
to do so in the service menu which will be covered in the next section. When
you turn on the relay manually in the service menu, the relay will be on for 2
minutes in this case. To change the time, simply enter the new time and
press
Enter
to save.
⧫
Proportional 10%:
The Proportional %-Age
(Default Setting 10%) means that as the
measured pH reading gets to within 10%
(6.75 in this case) of the pH setpoint of 7.5,
the amount of relay on-time will
proportionally decrease as the reading gets
closer and closer to the setpoint.
Proportional feed helps to prevent chemical
overshoot. To change the %-Age, simply
press
Enter
, change the value and press
Enter
to save the new setting. To deactivate
this feature set the %-Age to zero “0” and
press
Enter
to save setting.
⧫
On If pH > 7.5:
This is the pH set-point and the factory default setting is 7.5. The relay will turn the
chemical feed pump on if the measured pH reading is greater than 7.5. The relay will turn on for the
programmed on time, in this case for 1 minute as set in the “On Time 00:01:00” command or less than 1
minute if the measured reading is within the proportional feed %-age of 10%. When feeding base, this
command is the only difference and will be
On if pH < 7.5
.
⧫
On Delay 00:00:20:
The on delay, in this case 20 seconds, is necessary to prevent the relay and, hence
the chemical feed pump, from turning on and off frequently if the sensor measurement fluctuates back and
forth from 7.5 and 7.6. It means that the relay will not turn on unless the condition of “On If pH > 7.5” is
satisfied for at least 20 seconds - then the relay will turn on for the programmed “On Time 00:01:00” in this
case 1 minute. To change the on delay time, press
Enter
and change the time, press
Enter
to save the
new setting. The value 00:00:00 disables the on delay.
⧫
On Time 00:01:00:
This is the total amount of time the relay will be ON if the “On If pH > 7.5” condition
has been satisfied. The default setting is 1 minute. This command works in conjunction with the
MinTimeOff Command below. If the pH reading is not being maintained then more or less on time may be
needed.
⧫
MinTimeOff 00:05:00:
This is the total amount of time the relay will be OFF if the “On if pH > 7.5”
condition has been satisfied. This is the amount of time allowed for chemical mixing in the pool and works
in conjunction with the “On Time” Command above.
⧫
Off If RLY On -none:
The default setting is none or disabled. This feature prevents 2 relays being on at
the same time. It means this pH Relay will be Off if the ORP relay is On. This is useful in cases where
the chemical injection points are very close together and prevents the pH relay injecting at the same time
the ORP relay is injecting. Simply press
Enter
to toggle through to the choices.
