15
2.1 Set Point Options
SET POINT - What reading turns the relay on
DIFFERENTIAL - Amount reading changes by before
HIGH ALARM - What reading generates a High alarm.
LOW ALARM - What reading generates a Low alarm.
LIMIT TIMER - What amount of continuous bleeding
will generate a time alarm notice. The bleed is not
locked-out by this alarm.
2
nd
SET POINT - This valve is used if drum level one
(D1) is in alarm.
Note: Each alarm value can also be set-up to be displayed or not on the front screen as well as remotely
2.2 Make-up or Miscellaneous Conductivity
Tower systems with this option have an additional menu on the review page labeled SAMPLE METHOD. The
sample method pop-up screen allows the user to select continuous or cycles control. With cycles selected
under Settings a best and worst cycles value is attached to a best and worst make-up conductivity value.
The controller will control the cycles proportionally between the two cycles values as the makeup conductivity
BEST MAKEUP - Conductivity of best expected
makeup water.
BEST CYCLES - Cycles desired with best water.
WORST MAKEUP - Worst expected water.
WORST CYCLES - Cycles with worst water.
SYSTEM MAX
overrides the cycles setpoint if reached.
Note: If continuous is selected the standard settings are used for system conductivity and the
miscellaneous conductivity (labeled M COND) is the set points menus.
2.3 pH
The pH set point settings follow the same format as shown above in section 2.1.
INTERRUPT - Allows the Interruption of pH control
during bleed, other chemical feed or both.
pH SET POINT 2 - Is only present on systems with
Dual pH control option. It is a second set point for
applications when an acid and caustic are required.
Set Point 1 will be for feeding acid and Set Point 2 for
feeding caustic.
Note:
reset the limit timer and get the control relay active again, enter a new Limit Timer value.
2.4 ORP
>SYSTEM 1 COND SETPOINT<
SET POINT 2
nd
SET POINT
DIFFERENTIAL
HIGH ALARM
LOW ALARM
LIMIT TIME
>SYSTEM 1 COND SETPOINT<
BEST MAKEUP
DIFFERENTIAL BEST CYCLES
HIGH ALARM WORST MAKEUP
LOW ALARM WORST CYCLES
LIMIT TIME SYSTEM MAX
>SYSTEM 1 pH SETPOINT<
SET POINT INTERRUPT
DIFFERENTIAL SET POINT 2
HIGH ALARM
LOW ALARM
LIMIT TIME
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