Channel 42
PID control. Editable default and boundary values.
Control parameters Measured parameter Default Minimum Maximum
Rate Time 0 seconds 0 seconds 16:40 hours
Dead Band
pH 0.20 pH 0.00 pH
5 % of measured
range but no more
than Deviation
value divided by 5
ORP 10 mV 0 mV
EC 400.0 μS 0.000 μS
DO 20.0 %Sat 0.0 %Sat
Dead Band Gain 0 % 0 % 100 %
Overtime (Setpoint must be enabled first)
Option: Disabled, 10 to 120 minutes
The overtime (safety timer) parameter is provided to set the maximum continuous time a relay running a pump
or a valve is energized.
For a control that is running an On/Off algorithm and its output is a relay, this time is the continuous time the
relay is On before an alarm is issued. The timer will run during the On relay period and is reset when the Set
point is reached. If the timer period expires, the relay will deactivate and an Alarm condition will occur.
Note: Place the unit on Hold Mode (manual Hold) to suspend the alarm. Hold LED should be on. Exit Hold
to reset the timer.
• With Overtime selected, press Set.
• Press the
ud keys to edit value displayed blinking.
• Press CFM to save.
To reset an Overtime Alarm:
• Go to Menu, Hold Mode and select Man On. The Timer will reset to 0.
• Turn off the manual Hold before exiting menu.
• Verify the reagent tanks are full and pumps or valves used are operational.
Control Output (Setpoint must be enabled first)
Option: Read only
Displays the current relay (e.g. Relay1) associated with selected Set point.
If Multiple is displayed, press View, to display assigned relays or outputs.
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