Vaisala HMD60 Series - 2-Point Adjustment with Insight and Reference Calibrator; 1-Point Adjustment with Insight and Reference Transmitter

7.3.1 2-Point Adjustment with Insight and Reference Calibrator
• Computer with Windows operating system and Vaisala Insight software
installed
• Vaisala USB cable 219690 for connecting the probe
• Reference environment(s) for producing the desired humidity and/or
temperature
This procedure can be used to adjust the humidity (RH) or temperature (T) measurement of
the transmitter. If you want to adjust both RH and T , repeat the procedure for each parameter.
Because stabilization of temperature and humidity takes time, you should expect the
adjustment procedure to take at least 30 minutes for each adjustment point.
1. Prepare the reference environment (for example, Vaisala HMK15 Humidity Calibrator).
2. Connect the transmitter to Insight. See Connecting to Insight Software (page 18).
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. Insight automatically enters the measured values for the calibration point.
6. Repeat step 5 for the second calibration point.
7. Select Activate adjustment > Yes to store the adjustment in the transmitter.
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.
7.3.2 1-Point Adjustment with Insight and Reference Transmitter
• Computer with Windows operating system and Vaisala Insight software
installed
• Vaisala USB cable 219690 for connecting the probe
• A recently calibrated reference transmitter (for example, another HMD60
transmitter) and the required equipment for powering the reference device
and viewing its measurements
HMD65 User Guide M212243EN-A
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