Model 7600 - Teledyne Analytical Instruments

Infrared Gas AnalyzerOperationThe numbered call outs in Figure 3-4 refer to:No. Name Function(1) ComponentdisplayDisplays component of instantaneousvalue, corrected instantaneous value,corrected average value, etc.(2) ConcentrationdisplayDisplays measured value of concentration.(3) Range display Displays range values.(4) Unit display Displays unit with ppm and vol %.(5) Peak alarmcomponent(6) Peak alarmconcentration(7) Peak alarmtimes(8) Peak alarmunit displayDisplays peak alarm component.Displays peak alarm concentration display.(Upper limit value)Displays the alarm times exceeding thepeak value.Displays units of peak alarm with times/H.Instantaneous value and concentration value:The concentration display of Ch (component) where samplingcomponents such as “CO 2 ”, “CO” or “O 2 are displayed in the componentdisplay, indicates current concentration values of the measuredcomponents contained in gas that is now under measurement.O 2 correction concentration values:Ch components where “cv**” is displayed as “cv CO” in thecomponent display are calculated values. They are obtained from thefollowing equation by setting sampling components, O 2 instantaneous/concentration values and O 2 correction reference value (see item 6.8).⎛ 21- On ⎞Correction output = ⎜ ⎟ × Cs⎝ 21−Os ⎠Teledyne Analytical Instruments 39