Teledyne T300 Operation Manual page 241

Teledyne API – Model T300/T300M CO Analyzer
Wait until
STABIL falls
below 0.2 PPM
(for M300E).
This may take
several minutes.
06864B DCN6314
For each mid point:
SAMPLE A1:CONC1=50 PPM
< TST TST > CAL
SAMPLE CO STB=XXXX PPB
< TST TST > CAL
Allow calibration gas diluted to proper concentration for
Midpoint N to enter the sample port
SAMPLE COSTB=XXXX PPB
< TST TST > CAL CALZ
SPAN CAL M A1:CONC1=50 PPM
< TST TST > ZERO SPAN
Plot the analyzer responses versus the corresponding calculated concentrations to obtain
a calibration relationship. Determine the best-fit straight line (y = mx + b) determined
by the method of least squares.
After the best-fit line has been drawn, determine whether the analyzer response is linear.
To be considered linear, no calibration point should differ from the best-fit line by more
than ±2% of full scale.
If carried out carefully, the checks described in this section will provide reasonable
confidence that the T300 is operating properly. Checks should be carried out at least
every 3 months as the possibility of malfunction is always present.
CO = XXXX
SETUP
CO=XXXX
SETUP
ACTION:
CO=XXXX
CALS SETUP
CO = XXXX
CONC EXIT
Press EXIT to
Return to the
Main SAMPLE
Display.
EPA Calibration Protocol
Set the Display to show the
COSTB test function.
This function calculates the
stability of the CO
measurement.
Record the CO
reading as
displayed on the
instrument's front
panel.
ACTION:
Allow Calibration Gas diluted to
proper concentration for
Midpoint N+1 to enter the sample
port.
239