Model 420 & 425 Flame Photometer
425 91 001 Issue 22 1st December 2016 ECN 1410 & 1932 - 4 -
4.6 Sample Requirements............................................................................................. 32
Type....................................................................................................................... 32
Method of Presentation........................................................................................... 32
Volume................................................................................................................... 32
4.7 Chart Recorder Output............................................................................................ 33
4.8 Environmental Conditions...................................................................................... 33
Temperature........................................................................................................... 33
Humidity................................................................................................................ 33
4.9 Power Requirements............................................................................................... 33
Voltage................................................................................................................... 33
Power ..................................................................................................................... 33
4.10 Fuel........................................................................................................................ 33
4.11 Air.......................................................................................................................... 34
4.12 Size........................................................................................................................ 34
4.13 Weight ................................................................................................................... 34
5 DESCRIPTION OF INSTRUMENT.................................................................................. 35
5.1 Front Panel Controls and Indicators........................................................................35
5.1.1 Controls.......................................................................................................... 35
‘-’ ‘Set’ ‘+’ ..................................................................................................35
Blank............................................................................................................. 36
Single/Dual and Element Selection ................................................................36
Peak/Ref/Cont................................................................................................ 36
Measure......................................................................................................... 37
5.1.2 Description of Indicators................................................................................. 37
Cal (Ch1 & Ch2)............................................................................................ 37
Single ............................................................................................................ 37
Dual............................................................................................................... 37
Peak............................................................................................................... 37
Ref................................................................................................................. 37
Cont............................................................................................................... 38
Measure......................................................................................................... 38
Flame On....................................................................................................... 38
Power On....................................................................................................... 38
5.2 Rear Panel Controls and Connections..................................................................... 38
Channel 1 & 2 Data Outputs................................................................................... 39
RS232/Printer Output............................................................................................. 39
External Device Output .......................................................................................... 39
Power ..................................................................................................................... 39
Gas......................................................................................................................... 39
Air.......................................................................................................................... 39
Air Regulator.......................................................................................................... 39
5.3 Operating Modes.................................................................................................... 40
5.3.1 Single/Dual Mode........................................................................................... 40
Single ............................................................................................................ 40
Dual............................................................................................................... 40
Blanking........................................................................................................ 40
Calibration..................................................................................................... 40
5.3.2 Peak/Cont....................................................................................................... 41
Peak............................................................................................................... 41
The Peak Cycle .............................................................................................. 41
5.3.3 Ref Mode........................................................................................................ 42
Cont............................................................................................................... 42
5.3.4 Blank.............................................................................................................. 42
