Model 100E Instruction Manual Operating Instructions
045150102 Rev XB1 69
6.5.6. Range Units
The M100E can display concentrations in parts per billion (10
9
mols per mol, PPB), parts
per million (10
6
mols per mol, PPM), micrograms per cubic meter (µg/m
3
, UG) or
milligrams per cubic meter (mg/m
3
, MG). Changing units affects all of the display, analog
outputs, COM port and iDAS values for all reporting ranges regardless of the analyzer’s
range mode.
To change the concentration units:
SAMPLE RANGE = 500.0 PPB NOX=X.X
< TST TST > CAL
SETUP
SETUP X.X
PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X RANGE CONTROL MENU
MODE SET UNIT EXIT
SETUP X.X
CONC UNITS: PPM
PPM PPB
UGM
MGM
ENTER
EXIT
Select the preferred
concentration unit.
SETUP X.X
CONC UNITS: UGM
PPM PPB UGM MGM ENTER EXIT
EXIT returns
to the main menu.
ENTR
accepts
the new unit,
EXIT returns
to the SETUP
menu.
NOTE
Concentrations displayed in mg/m
3
and µg/m
3
use 0°C and 760 Torr as
standard temperature and pressure (STP). Consult your local regulations for
the STP used by your agency. Here are the conversion factors from volumetric
to mass units used in the M200E:
NO: ppb x 1.34 = µg/m
3
; ppm x 1.34 = mg/m
3
NO
2
: ppb x 2.05 = µg/m
3
; ppm x 2.05 = mg/m
3