Datalink Systems i50 Spezifikationen PDF herunterladen (Seite 42)

i50 Manual (5.10)

Page 42

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9.1.1.1 Manual Calibration

The i50 orientation can be programmed by setting the “Accelerometer X/Y/Z Angles” using the i50

Programmer. The value zero is reserved for calibration, so use a small value (such as 0.1) instead of

zero when setting values manually. The X/Y/Z angles are measured in degrees relative to the starting

position shown in Figure 8.

Figure 8 – Accelerometer Angles

With all values near zero the i50 orientation has the power connector (on red side in illustration)

facing forward, and top (green side) facing up. The X value increases from zero as the red side

angles down, Y values increase from zero as the blue side angles up, and Z values increase from

zero as the blue side rotates backwards.

If the angle of installation is known then manual adjustment will work well, but automatic calibration

should give more accurate results.

9.1.1.2 Automatic Calibration

Automatic calibration is begun by using the Reset Accel button on the i50 Programmer toolbar or by

sending a remote configuration command (setting 156=0) from the DataGate server (see section

15.0). These commands set the Accelerometer Z Angle to zero, which triggers calibration mode.

- Park the vehicle on a level surface

- Reset angles using one of the commands described above

- Wait at least 10 sec

- Accelerate slowly to approximately 20 mph

- Brake rapidly and stop for at least 5 seconds to set angles

- An “Angles Set” event will be sent to the server when calibration is complete

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Datalink Systems i50 Spezifikationen Seite 42