Tenders Are Invited For Delivery Of Ln2 Emergency Temperature Maintenance Systems In Low-Temperature Freezers

The Subject Of The Order Is The Delivery Of The Ln2 Emergency Temperature Maintenance System For The Cryocube® 740 Freezer To The Headquarters Of The Ordering Party, I.E. To The Kostrzyca Forest Gene Bank.1. Ln2 Emergency Temperature Maintenance System For The Cryocube® 740 Freezer Ln2 Emergency Temperature Maintenance System For The Cryocube® 740 Freezer The System Is An Independent Device Equipped With Its Own Controller, Temperature Probe And Buffer Power Supply With Battery. The System Must Ensure Protection Of Biological Samples In The Event Of A Power Outage Or Failure Of The Refrigeration Device. Functional Requirements: 1. The System Must:• Automatically Start When The Temperature Rises Above The Set Threshold,• Maintain The Temperature Inside The Freezer In The Range Of -80°C To -85°C, • Operate Independently Of The Main Power Supply Of The Device.2. The System Should:• Enable Setting The Activation Temperature In The Range Of Min. -50°C To -85°C,• Automatically Dispense Ln₂ Into The Freezer Compartment Until The Set Temperature Is Reached,• Have Protection Against Gas Dispensing When The Door Is Open.3. The System Must Be Equipped With:• A Solenoid Valve Controlling The Ln₂ Inflow,• A Temperature Control System,• A Switch And An Indicator Of The Power Supply On,• A Light Signaling Indicating The Connection To The Power Supply,• A Light Signaling Of An Open Valve,• A Visual Or Acoustic Alarm (When The Temperature Inside The Device Increases),• A Visual Or Acoustic Alarm Signaling Of Low Battery Level. Minimum Technical Requirements: 1. Power Supply:• 230 V, 50 Hz 2. Cables:• Power Supply Not Shorter Than 3 M• Cryogenic Not Shorter Than 3 M• Temperature Sensor At Least 2.5 M3. Operation Support System: • Built-In Battery That Ensures System Operation For Min. 24-48 Hours In Case Of Power Failure. 4. Temperature Range: • Ability To Maintain Temperature To Min. -80°C (Preferred -85°C). 5. Working Medium:• Liquid Nitrogen (Ln2)6. Compatibility:• The System Must Be Compatible With The Eppendorf Cryocube® 740 Ult Freezer Safety Requirements:The System Must:• Prevent Uncontrolled Release Of Ln₂,• Have A Dispensing Lock When The Door Is Open,• Meet The Requirements Of Safety Standards For Cryogenic And Electrical Devices,• Be Equipped With Protection Against Overpressure And Uncontrolled Gas Flow.Operational Requirements:• The System Must Enable Easy Operation And Regulation Of Parameters, • Must Be Adapted To Continuous Operation In The Laboratory, • Design Should Enable Easy Service And Maintenance. Pcs. 1 2. Ln2 Emergency Temperature Maintenance System For The New Brunswick U 570 Freezer. Ln2 Emergency Temperature Maintenance System For The New Brunswick U 570 Freezer. Subject Of The Order: The System Is An Independent Device Equipped With Its Own Controller, Temperature Probe And Buffer Power Supply With A Battery. The System Must Ensure Protection Of Biological Samples In The Event Of A Power Outage Or Failure Of The Refrigeration Device. F