Thermo Scientific 49i Instruction Manual page 9

Thermo Fisher Scientific
Range Mode Select................................................................3-87
Pressure Calibration ...........................................................3-88
Flow A and B Calibration ..................................................3-90
Temperature Calibration....................................................3-92
Analog Output Calibration ................................................3-93
Analog Input Calibration ...................................................3-94
Dilution Ratio....................................................................3-96
Display Pixel Test ..............................................................3-96
Restore User Defaults.........................................................3-97
Password Menu.....................................................................3-97
Set Password ......................................................................3-98
Lock Instrument ................................................................3-98
Change Password ...............................................................3-99
Remove Password...............................................................3-99
Unlock Instrument ..........................................................3-100
Chapter 4 Calibration........................................................................................4-1
Equipment Required...............................................................4-1
Zero Air Generator ..............................................................4-1
Calibration Photometer System............................................4-2
Instrument Preparation ...........................................................4-3
Calibration Photometer System Preparation............................4-3
System Check.......................................................................4-3
Ozone Loss Test...................................................................4-4
Linearity Check....................................................................4-5
Intercomparability Test........................................................4-7
Calibration Procedure .............................................................4-8
Connect Instrument.............................................................4-9
Zero Adjust ..........................................................................4-9
Span Adjust........................................................................4-10
Additional Concentration Standards ..................................4-10
Calibration Curve ..............................................................4-11
Periodic Zero and Span Checks.............................................4-11
Internal Ozonator Adjustment (Option) ...............................4-13
Chapter 5 Preventive Maintenance ...............................................................5-1
Safety Precautions ...................................................................5-2
Replacement Parts...................................................................5-2
Outside Case Cleaning............................................................5-2
Optical Bench Cleaning ..........................................................5-2
Lamp Replacement .................................................................5-3
Monitoring Detector Frequencies and Noise...........................5-4
Increasing Lamp Output......................................................5-4
Monitoring Lamp Noise ......................................................5-4
Contents
Model 49i Instruction Manual ix