Vaisala MGP260 Series, Руководство пользователя, Страница: 56 / 92

1 2
MGP261
Figure 24 Zero point adjustment tab
1 Follow the signal stabilization from the graph and the numeric value shown above the
graph.
2 After the signal has stabilized, select Start adjustment and wait for the notification
message about successful zero point adjustment activation. The adjustment is saved
automatically.
1. Insert your device into the 0 % reference environment (nitrogen).
2. Wait for the signal level to stabilize. You can follow the stabilization from the graph and
the numeric value shown above the graph.
3. After the signal level has stabilized, select Start adjustment .
4. Wait until Insight displays a notification about successful zero point adjustment activation.
The adjustment typically takes 2-3 minutes.
5. The zero point adjustment is saved automatically after it has been successfully activated.
To remove an incorrect adjustment, select Restore factory adjustment .
6. For a 2-point adjustment, carry out the high end adjustments for each measurement
parameter in the separate adjustment tabs using appropriate references (for example, a
60 % CH
4
/ 40 % CO
2
gas mixture).
8.3.3 Calibrating and adjusting methane (CH
4
) measurement
Prepare the calibration gases required to create the reference condition for the adjustment,
and the setup for controlled calibration gas feed to the probe.
MGP260 User Guide M212504EN-A
54
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