BioLife Stirling Ultracold ULT25NEU, Operating Manual, Page: 16 / 34

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OPERATING MANUAL
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ULT25NEU
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10.05.22 TABLE OF CONTENTS
4.2.2 Change the Setpoint to a New Value
There are two ways to change the Setpoint.
> Manually adjust the temperature using ^ / v .
> Use one of the three adjustable Preset Buttons .
Adjusting the Setpoint manually.
> Because of the importance of the Setpoint Temperature, changing
the Setpoint requires a “two-button procedure”. This means:
– Method A – press/hold the Set Temp button while simultaneously
pressing ^ / v .
OR
– Method B – press/hold the Set Temp button until the Set Temp LED
glows and then press
^ / v
.
(Methods A and B achieve the same effect. The user can use
whichever method they prefer.)
To change the Setpoint by Method A
>
Press and hold the Set Temp button and then push the ^ / v buttons
(do not release the Set Temp button).
– The Setpoint temperature will appear with the prefix S in the LCD display.
– When the
^ / v
buttons are first pushed the Setpoint will change by
1ºC at first.
– If the ^ / v buttons are held for five seconds the step size will increase/
decrease by 5ºC.
– If the ^ / v buttons are briefly released (less than a half second) while
continuing to hold down the Set Temp button the increment/decrement
size will return to 1ºC.
– Release all buttons once the desired Setpoint is achieved. The display
will return to chamber temperature after about eight seconds.
4. OPERATION
(continued)