bids are invited for earth resistance tester - earth resistance tester with 3 and 4 wire method, 3 wire method with clamps, 2 clamp method, soil resistivity. resistance 0 to 10 kohm, accuracy 5 % or better. functions: digital display, auto zero, current >= 200 ma, datalogger with real time entry, pc connectivity, rechargeable removable battery, cat iv 300 v, ip 54, carrying case with hanging straps, measuring lead 25 m with clip, measuring clamps, probes and any other accessories required for operating in all three measurement methods. battery charger to be provided. , 5kv insulation tester - 5kv insulation tester with three leads, digital display, 0 to 10 tohm, accuracy 5 %or better, range 250 v to 5 kv, measure leakage current upto 10 na or better, leakage current display, direct display of pi and dar value, data log/memory, pc connectivity for transferring data, auto range, backlight, cat iv 300 v, ip40 or better, rechargeable battery operated, hand held (< 3 kg), three leads with both probes and connection clips, carrying case. pc software for displaying the data to be provided, battery charger to be provided. , programmable power supply - programmable power supply 0 to 30v, 0 to 36 a, rms ripple voltage < 10ma, programmable with 1 mv and 1 ma steps, read back provision, digital display accuracy 0.2%. over voltage and current protection, usb and lan interface for pc connectivity, weight < 5 kg, cc and cv load regulation 0.1%, programmable via pc and physical keys, chassis ground screw. pc control and monitoring software to be included. special features: sense terminals, wave form generation using analog input from a function generator and program, variable internal resistance tosimulate battery, parallel serial operation with master slave function to connect additional units, support programming via standard programming language/scripting, labview support, 3 yr warranty, mating connectors, grounding jumpers etc. to be provided for using all the above functions.verification and test manual to be provided for verifying cv, cc, ripple, noise and load/line regulation tests. total quantity : 1