Advantage Three user- able linear range the computer to fully remote control No maintenance . a longer life span sensor Calibration of ambient air Automatic conversion range Standard features Class L-2C micro fuel cell sensor Three user- able range and calibration range Automatic conversion range Signal output 0-1 & 4-VDC 20mADC Recognition range VDC output 0-1 & 4-20mADC Recognition relay range Two adjustable alarm points concentration function with programmable relay Automatic calibration / 0.1 24 VDC users remote excitation signal calibration / 0.1 5 oxygen concentration LED Display 2 x 20 line LCD display 316 stainless steel sample gas system Gas-flow instructions Performance Range 3 users can set range (minimum 10 ppm FS) Calibration range 0-25% Accuracy + / - 2% FS Sensitivity 0.5% FS Operating temperature 0-50 'C Response time 90% <60 s Output 0-1VDC . 4-20mA . isolation Recognition range 0-1 VDC output . 4-20mA . isolation Maximum load 4-20mA . 1000ohms Analysis showed that 5 LED . 3 / 5 "H Data transmission RS232 Power 85-230 VAC . 50-60Hz