procurement of spares of forbes marshall make gaseous analyzer for measurement if stack emission parameters installed in unit-1 and 2, 2x600mw, sstpp, mppgcl, dongalia procurement of spares of forbes marshall make gaseous analyzer for measurement if stack emission parameters installed in unit-1 and 2, 2x600mw, sstpp, mppgcl, dongalia , micro-board with source and detector. part no. 1991.191d application-sensor head pcb , probe optics 1.8 / 2.3 meter.application-probe reflector , awc card part no. 802.794 application-ddu card , heater plateapplication-sensos head heater , motor pcbpart no. 991.189b application-pcb to drive motor , ddu interface card with five output.part no. 802.954 application-ddu card to provide output , ddu single micro board part no. s991.312a application-micro pcb for programming , gas wheel ( 7 slot, 5 gases- so2, no, co, co2, h2o ) application-gas wheel that contains reference gas cells , thermal barrierpart no. 902.441a application-for temperature protection of head assembly , exhaust fanpart no. 360.036 application-for cooling of sensor head , set of gasket and ‘o’ rings. ( std-ht ) application-to prevent leakage into the probe