Need help with Aquacontroller III

[Jaws]

I'm trying to set up a rule so my solenoid shuts off when my pH is < 8.0 and turns on when pH is > 8.4. This is also the rule the directions expect you to input into the controller. When I start working through the aquacontroller, it only gives me options for pH 2 and pH 3. Apparently there is no pH 1 and even if there was, I still can't set one rule for any of the pH settings. This probable isn't making any sense so if someone has any knowledge of the aquacontrollers, could you please PM me with your number so I can give you a call. Thanks.