bids are invited for calibration services - electrical, mechanical, thermal, fluid flow, optical calibration; voltage, current, power (ac/dc), frequency, power factor, phase angle, resistance, temperature, specific heat humidity, density, force, pressure and vacuum; na.. - tr. oil bdv testing machine, model: ots100af sr. no 101047461 , tan delta testing kit, model: delta 4110 sr. no. 11001011 , ir tester 500 v, model: 101043256, 101050502 , ir tester 500 v, model: 101050502 , ir tester 15 kv, model: 101585742 , earth resistivity tester, model: 071207/1428 , transformer turn ratio meter (ttm), ttrm 302, sr. no. 2315.00 aj 0351 , dew point meter, modal no ats-301d, sr. no. f3850066 , ppm meter, m170, sr. no v1550265 , winding resistance kit, modal no. 5846c sr. no. 1548-6300 , ctpt analyzer, sr. no. 405009 , dps 100, sr. no. 2010405 , ir tester, model: fluke 1550, sr. no. 1604196, 53130001, 1604096 , energy analyzer fluke 434 sr. no. 39703006 , vibration kit, sr. no. 627759 , voltage recorder, model: h10ki, sr. no. 180554396 , r&d temperature calibrator, sr. no. 61232201 , ultra sonic flow meter, model: sonicnag, sr. no. 82100449h , digital pressure gauge, model: mpc h+1000 (mp series), sr. no. mpc 2109 p0458 , multi-function calibrator , milli process cl meter, model: 773, sr. no. 39660286 ws , cl meters , multimeters , pressure gauge , temperature gauge , vacuum gauge , visiting charges for carrying out the calibration