Teledyne Camera Accessories T100 Manuel D’Utilisation
Teledyne API
- T100 UV Fluorescence SO2 Analyzer
EPA Protocol Calibration
219
10.5. DYNAMIC MULTIPOINT SPAN CALIBRATION
Dynamic calibration involves introducing gas samples of known concentrations to an
instrument in order to record the instruments performance at a predetermined sensitivity
and to derive a calibration relationship. A minimum of three reference points and one
zero point uniformly spaced covering 0 to 90 percent of the operating range are
recommended to define this relationship.
instrument in order to record the instruments performance at a predetermined sensitivity
and to derive a calibration relationship. A minimum of three reference points and one
zero point uniformly spaced covering 0 to 90 percent of the operating range are
recommended to define this relationship.
The analyzer's recorded response is compared with the known concentration to derive
the calibration relationship.
the calibration relationship.
To perform a precision check, the instrument set up, sources of zero air and sample gas
should conform to those described in Section 9.2.
should conform to those described in Section 9.2.
Follow the procedures described in Section 9.2 for calibrating the zero points.
For each mid point:
Wait until
STABIL
falls
below 0.5 ppb.
This may take
several minutes.
several minutes.
SAMPLE
STABIL=X.XXX PPB
SO2 =XXX.X
< TST TST > CAL
CALZ
CALS
SETUP
Record the SO
2
reading as
displayed on the
instrument’s front
panel
ACTION:
Allow calibration gas diluted to proper concentration for
Midpoint N to enter the sample port
SAMPLE RANGE = 500.000 PPB SO2 =XXX.X
< TST
TST
>
CAL
SETUP
SAMPLE
STABIL=X.XXX PPB
SO2 =XXX.X
< TST TST >
CAL
SETUP
Set the Display to show the
STABIL
test function.
This function calculates the
stability of the SO
2
measurement
SPAN CAL M
RANGE = 500.0 PPB
SO
2
XXX.X
< TST TST >
ZERO
SPAN
CONC
EXIT
ACTION:
Allow Calibration Gas diluted to
proper concentration for
Midpoint N+1 to enter the sample
port
Press EXIT to
Return to the
Main SAMPLE
Display
Figure 10-1:
Dynamic Multipoint Span Calibration
06807C DCN6650