Vaisala DM70 - Manual (Page 75)

Chapter 9 _______________________________________ Calibration, Adjustment, and Maintenance
17. Place the screw back onto the calibration button.
18. To seal the calibration, attach a sticker on the calibration button.
NOTE Several AutoCals can be necessary after this adjustment has been
performed until the transmitter reaches full accuracy.
1-Point Adjustment
NOTE This adjustment method allows the customer to manually enter the
reference value when making the adjustment.
9. A note is displayed on the screen reminding you to follow the
adjustment procedure described in the User's Guide. Press
OK to proceed with the adjustment.
10. Follow the stabilization from the graphic display by pressing
Graph. The minimum recommended stabilization time for this
critical adjustment is 5 hours.
11. When the reading has stabilized at the reference level, press
Ready.
12. Use the arrow buttons to give the reference value. Then press
OK.
13. Confirm the adjustment by pressing Yes. If you press No,
the adjustment mode display returns and no changes are made.
14. Wait until the automatic auto-calibration has taken place.
15. When the calibration is completed, press Back to exit the
adjustment mode.
16. To return to the basic display, press Exit.
17. Place the screw back onto the calibration button.
18. To seal the calibration, attach a sticker on the calibration button.
NOTE Several AutoCals can be necessary after this adjustment has been
performed until the transmitter reaches full accuracy.
VAISALA _______________________________________________________________________ 73