tender for supply of vertical deep freezer ( -200 c ) supply and installation of vertical deep freezer ( -200 c ) , vertical deep freezer ( -20°c ) technical specifications for supply and installation of vertical deep freezer ( -20°c ) 1. general: • type: vertical deep freezer ( -20°c ) • capacity: 600-800 l ( litres ) • application: general molecular biology laboratory use 2 , vertical deep freezer ( -20°c ) technical specifications for supply and installation of vertical deep freezer ( -20°c ) 1. general: • type: vertical deep freezer ( -20°c ) • capacity: 600-800 l ( litres ) • application: general molecular biology laboratory use 2. temperature range and performance: • setpoint: -20°c • operating range: -20°c to -40°c • temperature uniformity: ±2.0°c within the chamber • temperature recovery time: =15 minutes after door opening 3. construction: • outer cabinet: powder-coated steel for durability and corrosion resistance. double walled with puf insulation. • inner chamber: stainless steel ( eg.ss304 ) for ease of cleaning and chemical resistance. • door: solid door ( with a double-pane tempered glass viewing window for sample visibility –optional ) • gasket: durable, airtight gasket to prevent temperature fluctuations. • locking mechanism: key lock for added security. • shelves number: 4 or more ( adjustable ) • shelf material: stainless steel wire mesh • load capacity: =50 kg per shelf 4. refrigeration system: • compressor: • type: high-efficiency compressor with variable speed technology • noise level: =50 db • refrigerant: cfc free-environmentally friendly refrigerant ( e.g., r290 etc. ) • defrost system: automatic defrost system with condensate drain. • energy-efficient design with low power consumption. 5. control system: • microprocessor-based digital controller with a large and easy-to-read display. • temperature control accuracy: ±0.1°c • high / low temperature alarm: audiovisual notification • door ajar alarm: audiovisual notification • power failure alarm: audiovisual notification • remote notification ( optional ) . • data logging: built-in data logger for recording temperature history ( optional ) . 6. manufacturer support: • dedicated customer service team based in kerala team for technical support and troubleshooting ( support document to be submitted from manufacturer side ) • comprehensive online resources and user manuals. ready availability of spare parts and accessories. • the equipment should be installed and demonstrated at the requested location by on-site service agents of the manufacturer. 7. preferred additional features: • caster wheels: for easy mobility ( required ) • ice cube dispenser ( optional-preferred ) • self-diagnostic system: for early detection of potential problems ( optional- preferred ) . • remote monitoring: wi-fi or ethernet connectivity for real-time temperature monitoring and alarm notification on mobile devices ( optional-preferred ) . • chart recorder output: for external temperature recording ( optional ) . • led lighting: for clear visibility of samples inside the chamber ( optional ) • additional shelves, baskets, racks, boxes, and dividers ( optional ) 8. certifications: • ce / ul / us-fda certified for safety and compliance with international standards. 9. warranty: • two-year comprehensive on-site warranty on complete system ( minimum ) . 10. documentation should include user / technical / maintenance manuals, list of important spares and accessories with their part number and price and list of recent end-users in centrally or state funded research / academic institutes in kerala or other parts of india. 11. readily available service support based in kerala from manufacturer ( support document to be submitted from manufacturer side ) 12. the vendor needs to provide the address of certified and authorized service center for the quoted equipment in / nearest to thrissur, kerala. 13. the equipment should be installed, tested and demonstrated on-site at the requested location by authorized service agents of the manufacturer / vendor.