User Manual
PKK-50
33
1-4: Temperature probe correction
•
For temperature probe 4 corrections points are defined.
For each correction point correction can be set. To change value use .
5-6: Rh probe corrections
•
Correct Rh Offset and Factor.
To change values use .
7: Relative humidity control
•
You can choose the principle of maintaining relative humidity.
You have two options: with Rh probe or without the probe. To change value use .
The relative humidity (Rh) control works on a principal of dew-point. That means that the Rh is
maintained on the basis of the temperature difference between air temperature and the water
temperature. When the Rh probe is turned on, the probe constantly measures the air Rh in the
chamber and adjusts the water temperature accordingly. That way we get a very precise and
stable Rh control in the chamber. When the Rh probe is turned off, then the relative humidity in
the chamber is basically controlled by theoretical values of the temperature difference between
water and air temperature.
8: Time count-down tolerance (temperature)
•
You can set the time of each temperature step. The countdown will start when
temperature is in set limits.
For example:
Set temperature: 50°C
Set time: 60 min
Set START TIME COUNT IN RANGE : +-
1°C
The countdown will start when the temperature will be between 49.0°C and 51.0°C
!
9: Time count-down tolerance (humidity)
•
You can set the time of each temperature step. The countdown will start when
humidity is in the set limits.
For example:
Set humidity: 50%
Set time: 60 min
Set COUNT DOWN TOLERANCE IN HUMIDITY RANGE: +-5%
The countdown will start when humidity will be between 45% and 55% !
ATTENTION:
Time count-down begins when both parameters (temperature and humidity) are in their
limits!
