Operating Manual: U LT:25 -86
˚
C Ultra Low Temperature Portable Freezer
3
INTRODUCTION / CONTENTS
Table of Contents:
INTRODUCTION ................................................................................................................2
TABLE OF CONTENTS ...........................................................................................................3
SAFETY PRECAUTIONS .........................................................................................................4
UNPACKING AND SET-UP .......................................................................................................5
FEATURES ......................................................................................................................6
Freezer.........................................................................................................................6
Control Panel ..................................................................................................................7
OPERATION QUICK GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OPERATION ....................................................................................................................9
General Operating Principles ...................................................................................................9
How to Turn the Freezer On/Off ................................................................................................9
Changing the Set Temperature .................................................................................................9
To see the current set temperature..............................................................................................9
Change the Set Point to a new value ...........................................................................................9
Using Preset Temperatures ....................................................................................................10
Over-Temperature Alarm ......................................................................................................10
How to silence the audible temperature alarm .................................................................................10
To postpone an alarm........................................................................................................10
Error Conditions...............................................................................................................11
Locking the Panel .............................................................................................................11
To lock the freezer panel ......................................................................................................11
To unlock the freezer panel ...................................................................................................11
How to switch between power supplies.......................................................................................11
ERROR CODES.................................................................................................................11
MAINTENANCE................................................................................................................12
Air Intake Filter ................................................................................................................12
Storage .......................................................................................................................12
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
TROUBLESHOOTING...........................................................................................................13
SPECIFICATIONS...............................................................................................................14
WARRANTY ...................................................................................................................15
The ULT-25 (Ultra Low Temperature, 25 liter volume) incorporates next generation Free-Piston Stirling Cooler (FPSC) technology.
FPSCs differ from conventional compressor-based refrigeration in that they provide high efficiency,
deep-temperature cooling in a lightweight package allowing true portable operation.
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