Error Conditions; Locking The Control Panel; How To Switch Between Power Supplies - STRILING Shuttle ULT25NE Operating Manual

4.5 – Error Conditions
• Certain conditions will cause an Error Code to be displayed on the LCD display, and
the Error LED will be lit.
— The error code will be of the form E ##, where ## is the error code. See Section 5
for possible error codes.
— The error code will be displayed for about five seconds and then the display
will show the chamber temperature. The Error LED will stay on.
— The error code can be recalled by briefly pressing the Temperature Preset - 2 button,
located directly under the Error LED. This will recall the error code for approximately
10 seconds.
— If the Temperature Preset - 2 button is pressed and held for five seconds (three
beeps) this will clear both the LCD display and the Error LED. However, if the error
condition persists the error cycle will start over again.
4.6 – Locking the Control Panel
To Lock the Freezer Control Panel
• Press and hold the Temperature Preset 1, 2 and 3 buttons until the freezer beeps three
times.
— The Locke d LED will light up.
— The control panel cannot be locked if there is an over temperature or other error
condition.
To Unlock the Freezer Control Panel
• Press and hold the Temperature Preset 1, 2 and 3 buttons until the freezer beeps three
times.
— The Locked indicator LED will turn off.
— The freezer will still indicate over-temperature alarms or error conditions
while it is locked. The user has to unlock the control panel to address those
alarms/conditions.
4.7 – How to Switch Between Power Supplies
• See Section 3.3 for possible power sources for the Shuttle ULT25NE.
• To change from one power supply to another:
— Turn OFF the freezer (Press and hold the On/Off button).
— Wait for the fr ee-piston Stirling engine to slow a nd stop (15 seconds).
— Unplug the freezer from the current power source and plug into the new,
approved power source. Reference Section 2, Part B for instructions on use of
a DC Power cable.
— The freezer can be restarted immediately, no wait time necessary.
— Turn ON the freezer by pressing and hold ing the On/Off button.
Operating Manual: 10327.1 | 12.22.2016
ULT25NE
4. Operation
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