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INTER 2V4SA, rev.02
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• Press the down-arrow adjustment button
once more. The minimum temperature of
probe 1 flashes on the display, alternating
with the letters "
Pr1 Lo
".
• Press the up-arrow adjustment button. The
current temperature of probe 1 is displayed
once again.
• Press the Other Functions button to select
another probe then proceed as explained
above to see the minimum and maximum
temperature readings of the desired probe.
NOTE
: If you let the display flash for more
than 10 seconds, the controller resets the min
and max temperatures currently in memory
to the current average room temperature. To
avoid resetting these values, return to the
average temperature display using the adjust-
ment button (up-arrow or down-arrow) before
the 10 second delay has elapsed.
6.3. Temperature Set Point
The temperature set point is the target
room temperature. It can be adjusted be-
tween -40,0°C and 48,9°C (-40,0°F and
120,0°F).
I. Adjusting the Set Point
• Select the
SET POINT/TEMP RAMP
func-
tion. The current set point flashes on the
display.
• Use the adjustment buttons to set this
parameter to the desired value.
The temperature set point can only be
adjusted while the temperature ramp is
disabled (see following section).
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10.2. Zoned Heater
To configure your system for zoned heaters,
set internal switch #8 to ON. Since the two
heater outputs function independently, dif-
ferent probes are assigned to each output:
Probes 1 and 2 are assigned to Heater 1 and
Probes 3 and 4 are assigned to Heater 2. In-
dividual probes can be turned on or off using
the internal switch settings. If both probes
are activated for a given heater, the average
temperature from both probes is used.
Both heating zones can have negative and
positive heater offsets. A negative offset
is used when controlling heat mats, for
example.
To avoid ventilation problems when using
zoned heating, a special protection is built
into the device. Suppose the animals are
young and confined to one part of the build-
ing (zone 1) while the rest of the building is
heated at a minimum level (zone 2). If the
temperature difference between zones is
too great and zone 1 fans operate according
to the average temperature for both zones,
cooling in zone 1 may be insufficient. A built-
in protection will operate the fans according
to the probes of the zone with the highest
temperature whenever the temperature dif-
ference between zones is greater than a
user-defined value.
Zone 2
Probes 3 & 4
Probes 1 & 2
Young animals
Not used :
minimum heat
Zone 1
Zoned Heater
Heating
Stage
Status
T°
Off
On
Set Point
Heater
Offset
Heater
Differential
If the room temperature rises:
• at Set Point - Heater Offset 1 (Probes 1-2):
Heater 1 turns off.
• at Set Point - Heater Offset 2 (Probes 3-4):
Heater 2 turns off.
If the room temperature falls:
• at Set Point - Heater Offset 1 - Differential
1 (Probes 1-2): Heater 1 turns on.
• at Set Point - Heater Offset 2 - Differential
2 (Probe 3-4): Heater 2 turns on.
