Vaisala HMP4 - Adjusting Measurement with Indigo200 Series Transmitter

3. Select > Calibrate > Yes to switch the probe to calibration mode.
In calibration mode, the device will not use functions that may interfere with calibration
and adjustment.
4. Select the type of adjustment to perform: RH adjustment or T adjustment.
5. Define the needed adjustment for the first measurement point:
a. Insert the probe head in the reference environment for the first calibration point.
b. Wait for the measurement to stabilize fully.
c. Click the Reference value, point 1 text box and enter the reference value of the
calibration point. Press ENTER or click outside the text box when done.
d. The probe automatically enters the measured values for the calibration point.
6. If you want to adjust in more than one point, repeat step 5 for all desired calibration
points.
You can adjust humidity measurement in up to five points when Insight is set
to Advanced mode.
7. Select
Activate adjustment > Yes to store the adjustment in the probe.
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 in the probe.
9. Select the Calibration information tab and update the Calibration date and Calibration
text.
10. Select Close > Yes to exit the calibration mode.
7.4.4 Adjusting measurement with Indigo200 series transmitter
• Indigo200 series transmitter
• Reference environment(s) for producing the desired humidity and/or
temperature (see Adjustment points and requirements (page 53) for more
information)
• Mobile device or computer with an internet browser and a Wi-Fi connection
• Connection cable for connecting the probe to Indigo200 series transmitter
(optional)
This procedure can be used to adjust the humidity or temperature measurement of an Indigo-
compatible HMP or TMP-series probe. Because stabilization of temperature and humidity takes
time, you should expect the adjustment procedure to take at least 30 minutes for each
adjustment point.
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
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