Page 24
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9487 Dielman Rock Island Ind Dr, St. Louis, MO 63132
Operation and Maintenance Manual
Rev: L13
C – 3: The Cal Key (calibration)
The Cal (calibration) key on the front face panel,
when pressed shows you the inputs you can perform
a single point calibration. The standard inputs that
can be calibrated are pH and ORP. Any other inputs
you have enabled can also be calibrated from this
Menu screen. Select the input you wish to calibrate
and enter the proper value.
Perform a single point calibration if the
reading is off by a consistent amount
throughout the input range.
If the readings are accurate at one reading,
but are off by an increasing amount the
farther away you go from that reading, contact
your distributor.
C – 4: The Reset Fail / Safe Key
The Reset Fail / Safe key on the front face panel,
when pressed, provides the following information
and options:
Lists any active failsafe alarms and provides the
option to reset them. A failsafe alarm is generally
triggered when one of the relays has remained on
past the set time the function has been given to
reach its set point. By choosing to reset the
failsafe, the control that triggered the failsafe will
be able to resume operating normally once again.
Displays the remaining time a relay may remain on
before a failsafe will occur for each active feed
with a failsafe time set.
Provides the option to abort the Flow Restored
Feed Delay whenever the flow restored feed delay
is enabled and is currently delaying feeds.
C – 5: The Emergency Off Key
When the Emergency Off button is pressed, all
relays are automatically shut off except for the alarm
relay which will turn on. All the other relays will
remain off until the emergency off button is pressed
again.
Warning: Before resetting any failsafe
alarms, ensure that all functions of the
controller are working properly.