supply of instruments / equipments , recirculating chiller , temperature range: -20° c to100° c , temperature controller : microprocessor digital pid temperature controller cum indicator , accuracy : ±0.01° c , temp. stability : ±0.5 ° c , sensor : pt100 , cooling capacity at0°c : 900 watts , bath volume : 10 to 12 ltrs , flow rate: 6 ltrs per minute , pump type : chemical resistant magnetic pump , circulating pump : circulating pump to circulate liquid / water to an external source in closed loop condition , pump pressure : 0.5 bar , load / outlet : 1 outlet in series / parallel , level indicator : front panel scale provided for minimum & maximum water level indication , water filling : automatic or manual filling , inner chamber : stainless steel , outer chamber : stainless steel powder coated , power supply: 220v / 50hz / ac , portable gas analyser ( syn-gas ) , method of detection : ndir infrared sensor for co, co2 and ch4 electrochemical sensor for o2 & h2 , ranges available o20-25.0%, 0-50.0%, 0-100.0% co0-10.0%, 0-50.0%, 0-100.0% co20-10.0%, 0-50.0%, 0-100.0% ch40-50.0%, 0-100.0% h20-50% , resolution : 0.10% for all gases , accuracy & repeatability : ± 2% of reading for all gases , drift : less than 2% of full scale per month , response time ( t-90 ) : 20-30 seconds to 90% step change , ambient temperature range : 4 to 50°c , power : 12v / 24v dc adaptor , output options : rs 232 interface for data logging