REFERENCE METHOD DESIGNATION
The Thermo Environmental Instruments, Inc. Model 48C is designated by the United
States Environmental Protection Agency (USEPA) as a Reference Method for the
measurement of ambient concentrations of Carbon Monoxide pursuant with the
requirements defined in the Code of Federal Regulations, Title 40, Part 53.
Designated Reference Method Number: RFCA-0981-054
EPA Designation Date: September 23, 1981
The Model 48C CO Analyzer meets EPA reference designation requirements when
operated with the following:
Range 0 - 1 to 100 ppm
Averaging Time 10 to 300 seconds
Temperature Range
20 to 30
°
C
Line Voltage 90 to 110 VAC @ 50/60 Hertz
105 to 125 VAC @ 50/60 Hertz
210 to 250 VAC @ 50/60 Hertz
Pressure Compensation on or off
Temperature Compensation on or off
Flow Rate 0.5 to 2 LPM
RS-232 Interface
With or without the following options:
100
Teflon
Particulate Filter
200 Carrying Handle
210 Rack Mounts
320 Internal Zero/Span and Sample/Calibration Solenoid Valves
330 Internal Zero/Span and Sample/Calibration Solenoid Valves with
Remote I/O Activation
410 Internal Zero Air Scrubber
610 4-20 mA Current Output
725 Remote I/O Board
770 RS-485 Interface
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