Instructions / Assembly

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.