Model 420 & 425 Flame Photometer
425 91 001 Issue 22 1
st
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