EZT-550 Controller Manual
14
3.2 Event Control (Chamber On/Off)
To turn chamber systems and optional customer events on/off:
1)
Select the Chamber Detail screen under the Views menu.
2)
Select the events you wish to turn on by checking the check box next to each event in the list box.
To turn off events, de-select the check box next to the event.
3)
Press the Update button to set the new event status. Note that the events will not turn on or off
until the update button is pressed.
Chamber On/Off
Turns the chamber’s air circulators, heating and cooling systems on and off.
Humidity On/Off
Turns the chamber’s humidity system components on and off. When humidity is turned off, the relative humidity
is still measured and displayed; however, no control takes place to obtain the target setpoint.
NOTES
on humidity system operation
Temperature Extremes
When operating your environmental chamber at extreme air temperature setpoints, below freezing (0°C / 32°F)
or above boiling (100°C / 212°F), the chamber is not capable of controlling humidity. This is due to the physical
properties of air and its ability to hold moisture at standard atmospheric pressures when at the extreme
temperatures.
To prevent malfunction or damage to the chamber, the EZT-550 control system automatically disables the
humidity system components when outside of the valid operating temperature range. The event will remain on;
however, once the air temperature within the chamber returns to valid operating temperatures, humidity control
will resume at the target setpoint.
On/Off Status
Indicator
Check Box
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