Test and Calibration Tool

Calibration Procedure

Start Typhoon HIL Control Center and click on Test and Calibration in the bottom right of the Additional tools dropdown, as shown in Figure 1.

The Calibration Tool start screen will show up (Figure 2). To proceed, plug in your HIL Calibration Card, turn on the device, and then click Next.

The main screen (Figure 3) will appear. To calibrate, click on the Test and Calibrate button.

The outcome of a successful procedure is shown in Figure 4

Viewing the stored calibration data

To view the stored calibration dataset, click on Actions -> View calibration data, as shown on Figure 5.

A window with values for gain and offset coefficients will appear (Figure 6).

Erasing the calibration data

To erase the stored calibration constants (to set them to a neutral state), click on Actions -> Erase calibration, as shown in Figure 7.

Verifying the stored data

To manually verify that the device is correctly calibrated, a signal generator functionality is provided. The signal generator is embedded in the main app screen, as shown in Figure 8.

The generator will set the specified signal on all outputs. You can then take a high accuracy multimeter and measure the outputs, to ensure that it is within spec.

Manual calibration mode

A manual write-from-file function is provided, in case you want to calculate and write the coefficients manually. The coefficients are read from the provided .txt file, and stored onto the device flash.

To access this function, click on Actions -> Write from file..., as shown in Figure 9.

The encoding format of the expected file is UTF-8. A screenshot from Microsoft Notepad is shown in Figure 10.

The structure of the expected file is given in Table 1.

The file should contain four rows of constants. The values on each line should be TAB or SPACE delimited.

If an invalid format, insufficient values, or invalid coefficients are used, the procedure will be aborted.