Vaisala HM40 - Manual (Page 39)

38
The correction to the
measurement at point 1 is now
shown in the text for menu item
[3]. If you are only doing a 1-point
calibration, skip to
step 8.
6.
Place the probe in the second
reference environment (second
calibration point). Wait 20 – 40
minutes for the reading to
stabilize.
7.
Select menu item [4] Point 2 and
press the Set button. The meter
now shows the currently
measured value of the selected
parameter. Set the reference value
using the arrow buttons and press
the OK button.
The correction to the
measurement at point 2 is now
shown in the text for the menu
item [4].