Relative humidity probe adjustment example - INDIGO300

Indigo300 User Guide
Document code
M212849EN
Revision
A
Language
English
Product
INDIGO300
Document type
User guide
  • 4-mm Allen key, provided
  • M12 - M8 service cable (Vaisala item code 262195)

This procedure tells you how to use the Indigo80 handheld indicator to adjust the humidity measurement of the probe connected to the transmitter.

  1. Connect the transmitter to the indicator.
  2. Open the main menu by pressing .
  3. Select Devices. If you have more than one device connected to the indicator, make a further selection between the devices.

    In this case, select the probe connected to the transmitter. For example, if the transmitter is connected to port 2 of Indigo80, the connected probe is identified with icon 2A on the Indigo80 display.

  4. If the probe connected to the transmitter supports the sensor purge feature, wait for the start-up purge to finish or start the purge manually by selecting Devices > <your device> > Sensor purge.
  5. Select Calibrate / Adjust.
  6. Select the parameter, for example, Relative humidity.
  7. Select Manual adjustment.
  8. Place the probe to the first reference point and select Reference value, point 1 to open the stabilizing graph view. Wait for the measurement to stabilize fully.
    1. When the reading has stabilized, press .
    2. Use the arrow buttons to set the value of the reference, and then select OK or Set.
    If you already have the reference and measured values available for your calibration point(s), you can just skip the stabilizing graph view with the button to get to the view where you can set the reference value. Then replace the automatically filled Measured value, point 1 and Measured temperature, point 1 with your actual values.
  9. If you want to adjust the measurement in 2 points, place the probe to the second reference point. Then scroll down the <parameter> adjustment view and select Reference value, point 2 to open the stabilizing graph view. Wait for the measurement to stabilize fully.
    1. When the reading has stabilized, press .
    2. Use the arrow buttons to set the value of the second reference, and then select OK or Set.
  10. In <parameter> adjustment view, check the difference between each reference and measured value. Very large differences may be due to insufficient stabilization time or unsuitable calibration setup.
    • To store the adjustments to the probe, scroll down and select Activate adjustment > OK. Confirm by selecting OK.
    • To exit without taking the adjustment in use, press to end calibration.
  11. Update the calibration information in Calibrate / Adjust > Calibration information. Navigate to the Calibration information menu by pressing .
  12. Press to end calibration.