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The ORP set point settings follow the same format as shown above in section 2.1 and 2.3.
ORP SET POINT 2 - If a 28-day timer is interlocked
SETP2 NOTIFY - Allows for an alarm if SET POINT 2
is not reached during interlock.
Note: When the Limit Time value is met it will force
limit timer and get the control relay active again, enter
a new Limit Timer value.
2.5 Boiler Conductivity
the conductivity sampling method.
Timed sampling incorporates a sample timer which allows the boiler to be sampled at periodic intervals.
Sample intervals are adjustable from 1 minute to 99 hours, 59 min. Sample duration (on-time) is adjustable
from 1 second to 99 minutes, 59 seconds.
Sample and hold uses a sample timer for periodic sampling intervals. The unit will sample for its duration
and then hold the blowdown valve closed for a settable period (hold time). The conductivity is checked at the
end of the hold period, if additional blowdown is required the blowdown valve is held open for a preset amount
of time (blowdown time). Then sample cycle is repeated.
Pulse Sample
water instead of the sample interval timer.
Continuous sample has a sample of boiler or condensate water go past the probe continuously. If the
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
SAMPLE INT - Period between samples.
SAMPLE DUR - How long a sample lasts.
HOLD TIME - How long a hold lasts.
BLOWDOWN - How long to blowdown if reading is
above the set point after the hold. Hold repeated after
BLOWDOWN time.
2.6 Aux Inputs
>SYSTEM 1 ORP SETPOINT<
SET POINT SET POINT 2
DIFFERENTIAL SETP2 NOTIFY
HIGH ALARM
LOW ALARM
LIMIT TIME
>SYSTEM 1 COND SETPOINT<
SET POINT SAMPLE INT
DIFFERENTIAL SAMPLE DUR
HIGH ALARM HOLD TIME
LOW ALARM BLOWDOWN
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