Thermo Scientific 42i Instruction Manual page 5

Thermo Fisher Scientific
Reference Method Designation
The Thermo Scientific Model 42i is designated by the United States
Environmental Protection Agency (US EPA) as a Reference Method for the
measurement of ambient concentrations of nitrogen dioxide pursuant with
the requirements defined in the Code of Federal Regulations, Title 40, Part
53.
Designated Reference Method Number: RFNA-1289-074
EPA Designation Date: December 11, 1989 (amended for Model 42i)
The Model 42i Chemiluminescence NO-NO
reference designation requirements when operated with the following:
Range
Averaging Time
Temperature Range
Line Voltage
Pressure Compensation
Temperature Compensation
Flow Rate
RS-232/RS-485 Interface
With or without the following options:
Teflon Particulate Filter
Ozone Particulate Filter
Internal Zero/Span and Sample Valves
Ozone Permeation Dryer
Permeation Oven
Rack Mounts
I/O Expansion Board
-NO
2
50 to 1000 ppb
10 to 300 seconds
15 to 35 C
90 to 110 Vac @50/60 Hertz
105 to 125 Vac @50/60 Hertz
210 to 250 Vac @50/60 Hertz
ON or OFF
ON or OFF
0.5 to 1 LPM
Analyzer meets EPA
x
Reference Method Designation