Range Units - Teledyne T300 Operation Manual

Teledyne API – Model T300/T300M CO Analyzer

5.4.4. RANGE UNITS

The following equations give
approximate conversions
between volume/volume units
and weight/volume units:
CO
CO ppb x 1.25 = CO ug/m
CO ppm x 1.25 = CO mg/m
Toggle these buttons
to select the units of
measure for the
reporting ranges.
I
MPORTANT
I
MPORTANT
06864B DCN6314
The T300/T300M can display concentrations in parts per million (10
PPM) or milligrams per cubic meter (mg/m
display, COMM port and DAS values for all reporting ranges regardless of the
analyzer's range mode. To change the concentration units:
SAMPLE
<TST TST> CAL
SETUP X.X
CFG DAS
SETUP X.X RANGE MODE MENU
MODE SET
SETUP X.X RANGE MODE:SNGL
3
3
SNGL DUAL AUTO
SETUP X.X CONC UNITS:PPB
PPB PPM UGM MGM
In order to avoid a reference temperature bias, the analyzer must be
recalibrated after every change in reporting units.
Concentrations displayed in mg/m3 and ug/m3 use 0 ° C and 760 mmHg for
Standard Temperature and Pressure (STP). Consult your local regulations
for the STP used by your agency.
(Example: US EPA uses 25
Once the Units of Measurement have been changed from volumetric (ppb or
ppm) to mass units (µg/m3 or mg/m3) the analyzer MUST be recalibrated, as
the "expected span values" previously in effect will no longer be valid.
Simply entering new expected span values without running the entire
calibration routine IS NOT sufficient.
This will also counteract any discrepancies between STP definitions.
3
, MG). Changing units affects all of the
RANGE=50.0 PPM CO=XX.XX
PRIMARY SETUP MENU
RNGE PASS CLK MORE
UNIT DIL
ENTR EXIT
ENTR
I R
MPACT ON EADINGS OR
I R
MPACT ON EADINGS OR
o
C as the reference temperature).
Setup Menu
6
mols per mol,
SETUP
EXIT
EXIT
EXIT
EXIT discards the new
setting.
ENTR accepts the
new setting.
D
ATA
D
ATA
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