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4.9.1 Information on 1-point v/T Calibration
If possible the selected calibration point should be similair to the working point
(of the limited working range) of the sensor.
Example:
Working range v 8 - 12 m/s
> calibration point at 10 m/s
;
(1600 - 2400 ft/min)
(2000 ft/min)
working range T 18 - 22 °C
> calibration point at 20 °C
.
(64.4 - 71.6 °F)
(68 °F)
4.9.2 Information on 2-point v/T Calibration
v/T calibration / adjustment is performed at 2 different calibration points.
To ensure the smallest possible deviation in measuring results over the entire
measuring range, the two calibration points should be selected as follows:
- The low calibration point should be in the lower third of the measuring range.
- The high calibration point should be in the upper third of the measuring range.
Example:
EE75 T3***HV23 - measuring range = 0 - 2 m/s
(0 - 400 ft/min)
- Low calibration point (V-CAL LOW) should be around 0.4 m/s (0...0.7).
- High calibration point (V-CAL HIGH) should be around 1.8 m/s (1.4...2).
4.9.3 V Calibration Procedure Using the Configuration Software
1. Position the sensor head in the middle of the reference system (wind tunnel).
2. Set the required calibration point in the reference system (wind tunnel).
3. Stabilise the probe at the reference velocity (for at least 1 minute).
4. Clicking on the "Velocity calibration" button opens the menu window shown below.
5. Enter the velocity displayed by the reference system in the "Reference value"
input field.
6. Clicking "Save" adjusts the EE75 measuring value with the reference value.
7. In the case of 1-point calibration, the process is now complete.
8. For 2-point calibration, repeat steps 2-7.
4.9.4 T Calibration Procedure Using the Configuration Software
Click on the "Temperature calibration" button. The 1 or 2-point temperature
calibration procedure is similar to the velocity calibration (see chapter 4.9.3 -
V Calibration Procedure Using the Configuration Software).
4.9.5 Activating Factory Calibration
Clicking the "Activate factory calibration" button deletes the customer calibration
data set for velocity and temperature and restores the factory settings.
Configurations Software
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