Description: Technical Specification: A) Autofill Liquid Nitrogen Storage Dewar (Quantity: 1): 1. System with storage capacity for 20000-22000 cryovials (2.0 ml) in 100% vapor phase. 2. Should be vacuum insulated with stainless steel exterior and interior and fitted with castor wheels. 3. Overall Height 56±2 inches and diameter 32±2 inches. 4. Neck opening of not more than 12.6 inches. 5. Should be fitted with 1-tier step and safety handle. 6. Equipped with microprocessor controller to monitor and control the liquid nitrogen (LN2) levels along with automatic refilling of LN2 from the supply tank on sensing lower levels. 7. Equipped with differential pressure-based technology for LN2 level maintenance to provide an accuracy of 0.5 inches and a resolution of 0.1 inches. Should enable user to adjust the LN2 level in the range of 3.0 inches to 48 inches. 8. Internal chamber design should be of turn-table format with 4 quadrants for easy bifurcation and identification. The bottom area of the system should be fitted with a platform for positioning the samples/racks in vapor phase. 9. Internal chamber should be equipped with cryogenic light and automatic defogging function. 10. Equipped with back-up LN2 level line for secondary level monitoring or for troubleshooting incase of malfunctioning of the main line. 11. Equipped with LN2 level line auto-flushing mechanism to eliminate hinderance in liquid nitrogen level maintenance. 12. Equipped with gas by-pass mechanism for minimum LN2 loss. 13. Equipped with battery back-up to facilitate working of the controller for 36 hours. 14. Should be able accommodate additional temperature probes for external temperature monitoring purpose. 15. Should not consume more than 60-65 lit of LN2 to maintain the vapor phase. LN2 should be stored below the turn-table platform. 16. Equipped with locking mechanism to avoid unauthorized access of samples. 17. Should be provided with compatible SS racks to accommodate 22000 cryovials (2.0 ml). 18. Flexible 4-5 ft vacuum jacketed transfer hose pipe should be provided. 19. Equipped with system controller that is top mounted and in touch screen format. 20. Controller should be able to display the real time LN2 usage, LN2 level and temperature along with self -diagnostics capabilities. 21 21. Controller should facilitate audio-visual alarms with buzzer for variety of parameters including high temperature, Low/High LN2 level, Power failure, Stuck valve, Lid open, ‘empty supply cylinder’ in-case the LN2 supply tank is empty etc. 22. Controller should facilitate WiFi based email alerts along with remote monitoring. 23. Controller should be capable to allow password protection to avoid unauthorized access to the parameters. 24. Controller should be equipped with event log to access the past events, alarm notifications and maintenance schedule. 25. Controller should be fitted with USB input for data extraction. 26. Should be with 3-year standard warranty for complete system. 27. Should be with 7 years warranty on vacuum. 28. IQ, OQ, PQ for the system to be included. B) Liquid Nitrogen Supply Tank (Quantity: 1): 1. Low pressure (22 psi) stainless steel LN2 tanks with thick dent resistant outer shell with roller base, handle and safety valves. 2. Liquid level gauge with accuracy and expanded gauge ranges for better resolution. 3. Empty weight: 155±10 kg 4. Capacity – not less than 240 lts 5. Dimension: Height: 56±2 inches including roller base Diameter: 40±2 inches including roller base 6. Net evaporation rate not more than 1.5 % per day. 7. System should be PESO certified. Necessary certificate should be submitted. 8. Standard 2-year warranty. 9. At least 5 years warranty on vacuum
Sector: Medical Education