5. Pull out the old HUMICAPâ R2 sensor and insert the new one.
Handle the new sensor by the plastic frame. Do not touch the
sensor element in the middle of the sensor. Do not touch the temperature
sensor.
CAUTION!
6. Open Insight software.
7. Select Settings > Advanced Mode.
8. Connect the probe to Insight. See Connecting to Insight software (page 41).
9. Select
> Calibrate > Yes to switch the probe to calibration mode.
10. Select Adjustment data.
11. Adjust the 11.3 %RH point (dry end):
a. Insert the probe head in the 11.3 %RH reference.
b. Wait for the measurement to stabilize fully.
c. Click table cell A1 under RH adjustment data and enter the value of the humidity
reference (11.3).
d. Click table cell B1 and enter the %RH measured by the probe.
12. Adjust the 75.5 %RH point (wet end):
a. Insert the probe head in the 75.5 %RH reference.
b. Wait for the measurement to stabilize fully.
c. Click table cell A2 and enter the value of the humidity reference (75.5).
d. Click table cell B2 and enter the %RH measured by the probe.
13. Click outside the table to commit the adjustment.
14. Remove the probe head from the calibration reference and install a new filter. Tighten the
filter properly (recommended force 5 Nm).
15. Select the Calibration information tab and update the Calibration date and Calibration
text.
16. Select Close > Yes to exit the calibration mode.
7.4
Calibration and adjustment
The probe is fully calibrated and adjusted as shipped from the factory. To maintain the
accuracy of the measurement, calibrate and adjust the probe as needed. Typical calibration
interval is one year, but depending on the application it may be necessary to check the
accuracy more frequently.
When adjustment is necessary, you can have Vaisala calibrate and adjust the probe. To order
calibration services from Vaisala, visit store.vaisala.com. You can also do the adjustment
yourself using the Insight software.
HMP Series with MMP8 and TMP1 User Guide M212022EN-F
52
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