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Model 300E Carbon Monoxide Analyzer
Instruction Manual
CALIBRATION PROCEDURES
P/N 04288 REV: A
129
STEP TWO:
Set the expected CO Span Gas concentration:
SAMPLE
RANGE = 50.0 PPM
CO =
< TST TST >
CAL
SETUP
M-P CAL
RANGE = 50.0 PPM
CO =
< TST TST > ZERO
CONC
EXIT
M-P CAL
CO SPAN CONC:
40.0 Conc
0 0 0
4 0 .0
ENTR
EXIT
EXIT
2x’s to Return to the
Main
SAMPLE
Display
ENTR
stores the expected
CO span concentration value.
This sequence causes the
M300E to prompt for the
expected CO span
concentration.
The CO span concentration value
automatically defaults to
40.0 Conc
.
Make sure that you input the
ACTUAL
concentration value of the SPAN Gas.
To change this value to meet the actual
concentration of the SPAN Gas, enter the
number sequence by pressing the key under
each digit until the expected value is set.
NOTE
For this Initial Calibration it is important to independently verify the PRECISE CO Concentration
Value of the SPAN gas.
If the source of the Span Gas is from a Calibrated Bottle, use the exact concentration value
printed on the bottle.
STEP THREE:
Perform the Zero/Span Calibration. Zero and Span checks using the
Zero/Span Valve option are similar to that described in Section 3.3, except that:
q
Zero Air and Span Gas is supplied to the analyzer through the zero/span
valves rather than through the sample inlet port.
q
The Zero And Cal operations are initiated directly and independently with
dedicated keys (
CALZ
&
CALS
).