Vaisala HMDW110 - Two-Point Humidity Calibration and Adjustment Using Computer and HMK15 Humidity Calibrator

11. Select Adjust > 1-point adjustment.
12. Select Ready, and use the arrow buttons to enter the correct RH value of the salt jar.
Select OK when done.
13. The MI70 will ask Do you really want to adjust?. Select Yes.
MI70 shows the text Adjustment done and returns to the adjustment mode after a few
seconds.
14. Select Back to return to the parameter selection screen, and Exit to leave the adjustment
mode.
15. Remove the probe from the salt jar and reconnect the filter. Plug the hole on the salt jar.
16. Turn o the MI70 indicator and disconnect the connection cable from the service port.
17. Reconnect the terminal blocks and close the cover.
More Information
‣
Error Codes in MI70 Handheld Meter (page 71)
7.5
Two-Point Humidity Calibration and
Adjustment Using Computer and HMK15
Humidity Calibrator
You can also use Vaisala Insight software for performing calibration and
adjustment. See Vaisala Insight Software (page 29).
• Computer with
• Windows operating system
• Terminal application
• Free USB port
• Driver for Vaisala USB cable installed
• Vaisala USB cable for computer connection (219690)
• Vaisala HMK15 Humidity Calibrator with LiCl (11 %RH) and NaCl (75 %RH) salt
solutions prepared.
Other solutions may be used, but the dierence between the two points must
be ≥ 30 %RH. Additionally, one solution must be < 50 %RH, and the other must
be > 50 %RH.
• Medium size cross-head screwdriver (Pozidriv)
Chapter 7 – Maintenance
59