Platinum Plus
79
Timer Settings, Standard Mode
There are four auxiliary timers available.
You can assign these to devices such as foggers and
cool pads in the Temperature & Timer Settings
Menu.
Devices assigned a timer run according to
the timer when temperatures are above the device
ON temperature, and are off below the OFF
temperature setting.
Temperature Curve, Precision Mode
Temperature settings in precision mode include
separate settings for Target, Heat and Tunnel as well
as Low and High temperature alarms. In contrast to
standard mode where the Set temperature is
technically only a reference temperature, in
precision mode the Platinum Plus strives to maintain
target temperature. The target temperature is
modified by differentials in the ventilation levels
when desired to account for wind chill for example.
The controller enters tunnel ventilation at the tunnel
temperature.
1. Enter the relevant growth day in the first
column for each line. If you start with growth
day greater than 1, that temperature applies to
all days up to it. The last growth day entered
carries forward indefinitely. Between growth
day settings, the Platinum Plus interpolates if
Temperature Curve is set to ON in Control,
Control Mode.
2. Enter the target temperature, the heat
temperature and the tunnel entry temperature.
The heat temperature must be less than or equal
to the target temperature, and the tunnel entry
temperature must be equal to or above the target
temperature.
3. Enter low and high alarm temperatures. The low
alarm temperature must be less than or equal to
target, and the high alarm temperature must be
greater than or equal to target temperature.
4. Help | Set Parameters
a. Target Temperature Band
: this parameter
sets the Happy Zone for the ventilation levels.
You set the Target Temperature in Control
Menu | Temperature Curve, but the Platinum
Plus regards any temperature between the
target temperature plus the target temperature
band to be an ideal temperature. The Platinum
plus increases levels when the temperature is
above the Happy Zone, and decreases levels
when the temperature is below the Happy
Zone according to the delay times.
b. Heater Temperature Band
: heaters actually
turn off at the heat temperature specified in
Control, Temperature Curve, and turn on at
the Heat temperature minus the heater band.
This becomes the heater Happy Zone.
c. Cool Down Factor, %
: If actual temperature
is above the Happy Zone, the temperature
must come this fraction of the difference
towards the Happy Zone within one increase
level delay, or the Platinum Plus will increase
ventilation level to the next level.
d. Cool Down Fast Response
: if temperature
drops faster than this number of degrees per
minute, the Platinum Plus decreases
ventilation one level even if temperature is
above the happy zone. The controller
anticipates that at this rate of temperature
decrease it will likely overshoot the happy
zone.
e. Non Brood Area Differential From Target:
this parameter sets temperatures for heaters
that are not part of the active growing zone.
You can use this to preheat or set
temperatures in these areas. The temperatures
will be this differential below the target
temperature.
f. Radiant Low, Differential From Heat
: this
parameter sets the amount the low level
radiant heaters from the Heat . Once they
turn on, they continue running until the
temperature rises to the Heat temperature
PLUS this differential. The low level radiant
heaters turn ON at the ‘Heater Temperature
Band’ below this. To make the differential
negative, press the +/- key after entering the
quantity.
g. Radiant High, Differential Below Low
Radiant Heater Set Point: the high level
radiant heaters initially turn on together with
the low level radiant heaters and the
corresponding ignition relays to ensure proper
ignition, irrespective of other temperature
settings. However, if temperature is low, the
high level radiant heaters turn on again this
amount below the low level heaters and
continue to operate until the on point plus the
Heater Temperature Band or heater Happy
Zone. Example Calculations:
i. Heat Temperature from Temperature
Curve: 90.0ºF
ii. Heater Temperature Band or Happy
Zone: 1.0ºF
iii. Radiant Low Diff 2.0ºF, Radiant High
Diff 2.5ºF
iv. THEN: at 91.0ºF Low Level turns on
with temporary support from High Level
and Ignition and turns off at 92.0ºF. The
high Level turns on at 89.5ºF,and turns
off at 90.5ºF
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