MiniWarden Manual 530-487-5007 16
Options Menu:
ORP and pH Spread:
Options
ORP Spread: 0
PH Spread: 0.0
Feed Cycle: 60s
pH Control: Acid
pH Lockout: O
ORP FeedLMT:01:00:00
PH FeedLMT:03:00:00
Time: 12:36:17
Date: 03/27/15
Day : Friday
Password:0
Time Proportional Control:
With Time Proportional Control (TPC) the relay will cycle ON for part of the cycle
time (either 30 or 60 seconds) depending on the deviation from the set point.
The smaller the deviation, the less time the relay will be on. TPC helps to
minimize overshoot and provide a stable approach of the chemical values to reach
the set point.
The spread sets the distance from the set point that TPC will be in control before
the relay is strictly on or o. Increasing the spread will help to reduce overshoot
and if it takes too long to reach the setpoint then decrease the spread.
ORP and pH Spread - ON/OFF Control:
Setting the spread to 0 disables TPC and the relay will on when the setpoint needs to be reached and o when
the measurement equals or has passed the set point. On/O control is typically used when the feeders are
slow or under sized such as erosion feeders and salt systems or if the volume of the water is large.
Feed Cycle: The feed time is the total of the on and o times added together and remains the same. When
the cycle time is reached it will just start over. There are two cycle times to select from and 30 seconds is
typically for spas and 60 is for pools.
pH Control: Select either Acid or Base. For Acid, the pH relay will be in a feed cycle when the pH is higher
than the set point. For Base, the pH relay will be in a feed cycle when the pH is lower than the set point.
pH Lockout: A protection setting for sanitizer control. If set to O pH Lockout is disabled. The selections are
O, 7.8, 7.9 and 8.0. If enabled and the pH is greater than the value, the ORP relay will not turn on.
ORP and pH Feed Limit: Feed limit is a time limit for the set point to be reached. Some of the common
failures of a chemical feed system are running out of the chemicals, chemical feed system failure and even
broken chemical feed tubes. If the relay is on for the selected time without the set point being reached the
relay will be disabled until the condition is corrected or the feed limit timer cleared. Use one of the following
methods to clear the timer:
1. Manually adjust the water to get the measurement at the setpoint. This can also be accomplished via
calibration or changing the setpoint.
2. Cycle power on the MiniWarden
3. Go to the Relay Information menu in the Handy Menu and press the number 0 on the appropriate relay to
clear all the timers.
Time and Date: Enter the current time and date that will be used to time stamp the data.
Password: Simple mode allows for 1 password. If the password is 0 the feature is disabled. When there is a
password, it will be required to access the main menu. After entered, it will clear and need to be re-entered
when the back light turns of which is 2 minutes with no buttons pressed.
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