supply of oti and wti supply of oti and wti , oti 2mic sw w / o pot.mtroti for local indication only ( w / o potentiometer ) 150mm dial / accuracy class + / - 1% or better / with 2 micro switches / with temp.range 20~140 deg.celsius / with capillary 6m / and generally as per so 004. code: 557400210 , wti 4mic sw with rtd, s.sw&rwti wti for local indication ( w / o potentio-meter ) / 150mm dial / accuracy class + / - 1% or better / with 4 micro switches / with temp.range 30~150 deg.celsius / with capillary 6m / and generally as per sw 008. it shall be suitable for bct current of 2a. code:557400211 , rcxt & psu ( input from pt100 ) rcxt for wti with input from pt100 rtdsensor & power supply unit suitable forauxiliary supply 90~260v ac / dc with single 4~20ma dc output for 30~150 deg.celsius. code:557400212 , current converter current to curent converter unit for taking two 4~20 ma output from current converter. this component is not required if there is provision for taking two 4~20 ma output from digital indicator. the temperature range for oti is 20~140 degree celsius & ccxt shall be labelled oti. temperature range for wti is 30 ~150 degree celsius & ccxt shall be labelled wti. code:557400213 , dig.indr. for pt100rwtt digital indicator for pt100 of wti temp.range 30~150 deg.celsius / input4~20ma.code:557400214 , pt100 sensor, heater shunt unitheater & shunt resistor unit with pocket.code:557400215