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Labwit ZWYC-290A - Operating the Humidity System

Labwit ZWYC-290A
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Ultimate-cell Stackable Shaking Incubator V2017.2
33
This function indicates the ideal red light output for the system to reach for the
segment. Use the keyboard to enter the ramp end red light output from 0-100%.
BlueRamp End Blue Light Output button
This function indicates the ideal red light output for the system to reach for the
segment. Use the keyboard to enter the ramp end red light output from 0-100%.
HOLDHold Time
This function indicates the time of hold step, which is the length of time that the unit
has to maintain the (Ramp End) light outputs for the segment. Use the keyboard to
enter the hold time from 0-999mins.
LAST—“Last Button
Press it to return to the set page of previous segment.
NEXT—“Next Button
Press it to forward to the set page of next segment.
Start the program operation.
Switch the "LIGHT MODE" in the "SET" page to "PROG " mode. The program
will start according to the saved program.
Pause the program operation
To pause the program that is in operation, press the "LIGHT" switch in the home
page to "OFF". The timer will be paused. Switch the "LIGHT" to "ON" to resume
the current program.
Exit the program operation
Different from the temperature and speed system, there is no need to set a
termination point for the program. So the program will keep running in cycles
continuously until it's switched off manually.
To manually exit the program that is in operation, switch the "LIGHT MODE" in
the "SET" page to "FIXED " mode. The program will exit the current program
operation, and switch back to Fixed Value control mode.
6.6 Operating the Humidity System
The humidity system features direct steam injection as well as active dehumidification
system, which enables extended applications where various humidity level is needed.
The humidity system only operates under Fixed Value control mode. It will auto-
matically switch off when the control mode is switched to Programmable mode.
Under Fixed Value control mode, the relative humidity level can be set via the 6.4
Operating Temperature and Speed System --Fixed Value Mode
The accuracy of relative humidity value is 0.1%RH.
A setpoint of 60-70%RH is sufficient to prevent evaporation. In some ideal conditions,

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