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PROGRAMMING
T-SERIES
TRANSITION VPD SETTING
Adjusts how gradually your device will shift between
levels when triggered ON by the VPD trigger. This
will determine how much the probe VPD needs to
increase to step up to the next level setting.
The higher the transition setting is, the wider the
VPD gap is between levels. The lower the transition
setting is, the smaller the VPD gap is between levels.
If this figure is set to zero, your device will jump to
your maximum level when triggered ON.
Press the up or down button to set a transition
threshold between 0.1 kPa and 1.0 kPa. When the
sensor VPD first reaches or crosses the VPD trigger
point, the level will increase by one (exiting OFF
Mode). Each time the threshold level is crossed, the
level will ramp up by one until it reaches the level set
in ON Mode.
EXAMPLE
In this example, your high VPD trigger is set at 0.1
kPa, the OFF Mode level is 0, and the ON Mode
level is 6. If the transition threshold is set to 0 kPa,
then once the sensor temperature reaches or
exceeds 0.1 kPa, the devices will trigger to run at
level 6. However, if the transition threshold is set to
0.2 kPa, then the devices will trigger to run at level
1 when the VPD reaches or exceeds 0.1 kPa. It will
then ramp up to level 2 when the VPD reaches or
crosses 0.3 kPa, level 3 at 0.5 kPa, etc. From 1.1
kPa on, it will run at level 6, the level set in ON Mode.
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