94 Calibration 083730300A DCN8101
4.2.1.1 ZERO CALIBRATION CHECK AND ACTUAL CALIBRATION
1. Go to the Calibration>M-P menu.
2. Input Zero air through the Sample port and press the Start button.
3. Either check or calibrate as follows:
a. Wait for reading to stabilize.
b. Press Stop and check the
a. Press the Zero button.
b. Press Stop and check the reading.
4.2.1.2 SPAN CALIBRATION CHECK AND ACTUAL CALIBRATION
1. While still in the Calibration>M-P menu, input CO Span gas through the
Sample port and press the Start button.
2. Either check or calibrate as follows:
a. Wait to reach stability,
then press Stop.
b. Record the reading(s).
a. Press the Set Span Target button and
enter the CO concentration.
b. Verify the concentration reading is the
same as the CO concentration being
supplied.
c. If correct, wait to reach stability, then
press the Span button.
d. In the Cal Result window, press OK.
3. Press the Stop button and return to Home screen.
4. In the Dashboard, check and record the Slope(s) and the Offset(s). (See
Table 4-4 in Section 4.4 for expected/acceptable values).