tender for purchase of equipment , 1. electrochemical workstation , general requirements -  research-grade modular electrochemical workstation suitable for corrosion, energy storage, sensors, and material research applications., system shall support potentiostatic, galvanostatic, and electrochemical impedance spectroscopy (eis) techniques in a single integrated platform, modular and upgradeable architecture with capability for at least two independently operating channels.  suitable for low-noise, high-precision electrochemical measurements over long-duration experiments.,ii) potentiostat / galvanostat performance -  applied potential range : ± 10 v or better , compliance voltage : ± 12 v or better,, current range : from pa/na level upto at least ±1 a or higher , current resolution : ≤ 1 pa (best range),, voltage resolution : ≤ 1 μv,  high stability, low drift, low-noise electronics suitable for research-grade measurements\, automatic and manual ir compensation facility, iii) electrochemical impedance spectroscopy (eis) -  frequency range : 10 μhz to 5 mhz or wider , high precision ac excitation control in millivolt range,  support for equivalent circuit fitting and impedance modeling , high signal-to-noise ratio with reliable phase accuracy, iv) measurement techniques - the system shall support the following electrochemical techniques:  cv, lsv, ca, cp, ocv, sv , dpv, swv, npv, rnpv, dnpv, dpa, ocp measurement, battery testing (gcd or gcpl), eis and related impedance analysis techniques, v) software - fully integrated electrochemical control and analysis software , real-time data acquisition and graphical display  multi-channel experiment control with automation capability, advanced eis analysis with all curve fitting tools,  data export in standard formats (csv, txt, excel-compatible), perpetual or lifetime software license preferred,  scripting or programmable experiment capability desirable, general electrochemistry peak analysis, n fit etc, vi) computer system - desktop computer compatible with instrument software, processor : intel core i5 or higher (latest generation or equivalent),  ram : ≥ 8 gb, storage : ≥ 1 tb ssd, monitor : ≥ 21-inch led display, operating system: licensed windows 10/11 professional - keyboard and optical mouse, vii) power backup -  online ups, capacity sufficient to support complete system (instrument + computer), minimum backup time: 30 minutes at full load, surge protection and automatic voltage regulation included, viii) safety and instrument protection -  built-in over-voltage, over-current, and short-circuit protection,  electrochemical cell protection against abnormal load conditions,  proper grounding and shielding for low-current measurements,  fully enclosed system with no exposed live electrical parts, compliance with relevant electrical safety standards (iec/ce or equivalent), ix) accessories and installation -  all required cables, connectors, and interface modules shall be included,  two standard electrochemical cell kit (including reference electrodes, counter electrodes, glass electrodes, clips-extra and dummy cell) compatible with three-electrode configuration shall be provided,  installation, commissioning, and on-site training to be provided by supplier,  calibration certificates and user manuals shall be supplied , two-year comprehensive warranty x) as applicable,  expandable multi-channel configuration beyond two channels,  integrated temperature control capability for electrochemical cell  remote operation and network-based control capability,  advanced corrosion analysis modules, xi) environmental conditions,  a suitable air-conditioning system with stabilizer shall be provided to maintain stable laboratory conditions for instrument operation, the system shall support continuous 24×7 operation. warranty: two years, delivery: 4-6 weeks