5 Calibration
19
5.2
Preparation of Calibration
5.2.1
Gas connection check
Confirm that the gas used for calibration is correctly connected.
For the calibration gas, use a cylinder gas containing gas approximately 90% of the
calibration range. Check the residual gas pressure in the calibration gas cylinder, and
replace with the new cylinder if the pressure is within approximately 1 MPa.
5.2.2
Setting calibration range and span gas concentration
Set the range for calibration and span gas concentration.
1.
Press the [MENU] key in the MEAS. screen.
2.
Press the [
X
] key twice to display the MENU 3/5 (SETTING menu) screen.
Fig. 12 MENU 3/5 (SETTING menu) screen
3.
Press the [CALIBRATION SET] button. The CALIBRATION SET screen appears.
In this screen, the calibration range as well as the span concentration can be set.
Fig. 13 CALIBRATION SET screen
Shows the software version.
