Tender For supply of yokogawa make - zirconia oxygen analyser convertor shall be compatible with the existing convertor, , rotameter for auto cal unit, model no. ec00229-01 suitable for use m/s yokogawa make oxygen analyzer , dual stage regulator. model no. ec00168-04, suitable for calibration of yokogawa make oxygen analyzer , 10 lt wc cs cylinder, model no. : ec00182-06, for filling of 0.4% oxygen and balance nitrogen gas. , filling of 10 l cylinder with 0.4% of oxygen and balance nitrogen gas. suitable use for calibration