Advantage Controls MegaTronMT Installation Maintenance Repair Manual page 16

2.4. pH and ORP
The pH and ORP set point settings follow the same format as shown above in section 2.1.
2.5. Aux Inputs
Auxiliary inputs are the digital inputs for optional Flow Switch and other digital inputs, such as low
drum level alarms. From these menus, alarms, notification, action, and latching settings can be
made.
SET POINT - What reading turns the relay on
DIFFERENTIAL - Amount reading changes by before
the relay is turned off
HIGH ALARM - What reading generates a High alarm
notification.
LOW ALARM - What reading generates a Low alarm
notification.
INTERRUPT - Only applies to pH settings and
allows the Interruption of pH control during bleed,
other chemical feed, or both.
ORP SET POINT 2 - If a 28-day timer is interlocked to
ORP, the ORP control will go off of SET POINT 2 during
the 28-day timer's run time.
Note: When the Limit Time value is met it will force
off the control relay being driven by pH or ORP. To
reset the limit timer and get the control relay active
again, enter a new Limit Timer value.
LATCHING SIGNAL - Allows a digital input to stay
Active until a second latched input becomes active.
ACTIVE WHEN - Set if input is active seeing closed
or open.
ACTION DISPLAY - Set if the input is being set as
alarm or just On/Off.
ALARM DELAY - How long input must be in open/
closed before registering.
ALARM NOTIFY - Set the alarm notification.
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