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

Work Detail

The Subject Of The Order Are Ln2 Emergency Temperature Maintenance Systems, Intended For Low-Temperature Freezers (-80°C). 1. 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 A 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 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. Functional Requirements: 1.The System Must:• Automatically Start When The Temperature Rises Above The Set Threshold,• Maintain The Temperature Inside The Freezer In The

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