Global Cooling ULT25 User Manual Download | Manualshive

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Global Cooling

ULT25 -80º C Portable Freezer

User Manual

Free Piston Stirling Cooler

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P S C

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Summary of Contents for ULT25

Page 1: ...Global Cooling ULT25 80º C Portable Freezer User Manual Free Piston Stirling Cooler F F P S C ...

Page 2: ...7 OPERATION 8 General Operating Principles 8 How to Turn the Freezer On Off 8 Changing the set temperature 8 To see the current set temperature 8 Change the Set Point to a new value 8 Using Preset Temperatures 9 Changing the preset values 10 Min and Max Temperature 10 Over Temperature Alarm 10 How to silence the audible Temperature Alarm 10 To postpone an Alarm 11 How to change the Over Under Temp...

Page 3: ...ther Do not use solvents to clean the panel or the outside or inside of the freezer An Ultra Low Temperature Freezer is qualitatively different than a home freezer At 80º C frostbite can occur in seconds You should establish and follow a protocol for safe ULT operating procedures This should include but not limited to Never handle samples or freezer accessories with bare hands Do not use gloves wh...

Page 4: ...o use with a 220 240 V supply the red switch on the AC Power Supply must be moved to the 230 V position v Turn on the power supply b To use the DC Power Cord in a motor vehicle i Make sure the freezer remains level Exceeding an angle of 12 degrees may cause loss of cooling ii Plug the DC Power Cord into a 12V outlet that is rated at 18 amps or greater Consult your automotive specialist if your veh...

Page 5: ...Global Cooling ULT25 FPSC freezer has the following features A freezer chamber which is protected by two lids o Inner lid a tight fitting foam lid o Outer lid a latching lid with a lock Control Panel o Described in more detail in the next section Locking latch o Can be locked to provide sample security Access port o For thermocouple wires purge gas etc Cleanable filter o Helps protect the heat rej...

Page 6: ... and holding one of these buttons and changes the value o When the Error Over T LEDs are lit then 2 shows and controls errors 3 controls the audible over under temperature alarm o Pressing all three buttons simultaneously controls the panel LOCK function buttons o Used to adjust Set Point Temperature when the display shows S o Used to adjust Preset Temperatures when the display shows P o Used to a...

Page 7: ... Alarm When Over T light glows press Preset 3 until time shows 1 0h default If Over T LED is not glowing then Preset 3 acts as a Temp Preset Change Silence Time When Over T light glows press Preset 3 until time shows 1 0h default then use or while continuing to press Preset 3 Perm Silence Alarm Change silence time to negative number LED will function but not Audible Change Temp Allowance When Over...

Page 8: ...the I O button for two beeps 3 seconds o The freezer will display a greeting message and then the chamber temperature To turn the freezer off o Press and hold the I O button for three beeps 5 seconds o The freezer will display OFF for 10 seconds and then go dark Changing the set temperature To see the current set temperature Press the Set T button briefly The current set temperature will be displa...

Page 9: ...ns are pushed the Set Point will change by 1º C at first If the buttons are held for 5 seconds the step size will increase to 5º C If you briefly release a half second the buttons while continuing to hold down the SET button the increment decrement size will return to 1º C Release the buttons once the desired Set Point is achieved o Press the Set T button briefly less than 1 second to turn off the...

Page 10: ...nd Over Temperature Alarm The freezer has an adjustable over and under Temperature Alarm mode This alarm can be activated whenever the freezer is on even when the panel is locked o If Tchamber 15º C when the freezer is turned on the Temperature Alarm is automatically postponed for 3 0 hours to allow initial cooldown If the freezer compartment temperature is 10º warmer or colder adjustable see belo...

Page 11: ...T set T allowance The factory default is 10º C For Example if the Set Point is 60º and the default allowance is used then the Over T alarm occurs at T 50º or T 70º This allowance can be changed from 1º C to 50º C o Small values ensure tight temperature control during long storage o Large values can be used to reduce the number of Over Temperature alarms when the freezer is being open and closed fr...

Page 12: ...ezer beeps three times o The Locked indicator LED will light up o You cannot Lock the panel if there is an over temperature or error condition To Unlock the freezer panel Press and hold buttons 1 2 and 3 until the freezer beeps three times o The Locked indicator LED will go turn off o The freezer will still indicate over temperature alarms or error conditions while it is locked You have to unlock ...

Page 13: ...perature Continued use has risks no chamber temperature control possible damage to the FPSC etc Please return for repair 30 Input voltage too high Check the input voltage and reduce to acceptable input levels Continued operation of the freezer may result in damage to the electronic controls The operation of the FPSC protects the electronics to some extent by dropping the voltage If the FPSC is tur...

Page 14: ...moved Gently clean the filter with a vacuum cleaner If there are stubborn residues use a soft brush to work them loose Storage 1 Turn off the power and allow the freezer to come to room temperature 2 Dry the inside of the freezer compartment and clean any spills 3 Disinfect with suitable sterilizing agent if the freezer has been used for biohazards Cleaning The exterior surfaces of the ULT25 can b...

Page 15: ...zer only when automobile is running Remove Freezer from direct sunlight hot room etc Freezer does not achieve desired temperature Improper environment Check that Freezer is level Tilts of more than 12º in some directions will degrade performance Overloading of Freezer Remove some items from Freezer Lid is not completely closed Check for ice buildup remove if necessary and properly close lid Lid is...

Page 16: ... Freezer Compartment Capacity 25 l Freezer Compartment Dimensions D340 x W225 x H340 mm Overall Dimensions D695 x W350 x H460 mm Weight 39 lbs 18 kg Made in the USA Global Cooling Inc 141 Columbus Road Athens OH 45701 740 592 2655 More information on the ULT 25 FPSCs and Global Cooling can be found at http www globalcooling com 90 60 30 0 30 0 0 5 1 1 5 2 2 5 3 3 5 4 4 5 5 hours Temp C Cool Down W...

Page 17: ...s WARRANTY except duly authorized officers of Global Cooling Inc 7 Global Cooling Inc agrees if instructions as to operation and use are strictly followed and power sources circuits voltages etc are properly applied to provide within one year after original delivery to the shipper labor free of charge to maintain the product in good working condition 8 The customer will pay for the cost of returni...

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