8. Check the message that appears at the top of the screen. If the message indicates that
the adjustment is activated successfully, your adjustment is stored.
9. Select the Calibration information tab and update the Calibration date and Calibration
text.
10. Select Close > Yes to exit the calibration mode.
11. When done, plug the installation hole of the reference transmitter.
4.4 Calibration and Adjustment with MI70 Hand-
Held Indicator
You can use the MI70 hand-held indicator to make a 1-point adjustment to temperature (T) or
relative humidity (RH). To connect the transmitter to MI70, you need the optional MI70
connection cable (Vaisala order code 219980SP). For instructions on connecting the
transmitter to MI70 and general information about using MI70, see Overview of MI70 Support
(page 35).
Before adjusting the measurement with MI70, turn the adjustment trimmer(s) on
the transmitter component board back to the ±0 position. When you adjust the
measurement with MI70, the position in which the trimmer is at that moment
becomes the new ±0 point.
More Information
‣
Connecting HMD60 to MI70 Indicator (page 36)
4.4.1 1-Point Adjustment Using Reference Environment
• A humidity or temperature reference (for example, Vaisala HMK15 Humidity
Calibrator) to create the reference condition used in the adjustment.
• MI70 hand-held indicator and MI70 connection cable 219980SP
This example describes an RH adjustment with a humidity calibrator. The same
steps can be applied to temperature calibration with a temperature reference.
1. Prepare the humidity reference for the adjustment point you are using (for example,
11 %RH).
2. Connect the transmitter to MI70 indicator with the MI70 connection cable 219980SP.
3. Turn on the MI70 indicator.
4. Insert the probe head into the reference environment.
HMD62 TMD62 User Guide M212016EN-A
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