Make the Electrical Connections

To make the electrical connections you need a 3/32” hex key, the flex cable and the partially assembled SPAN IMU from Install the HG1700 Sensor Unit. Now follow these steps:

1. Attach the flex cable to the HG1700 sensor ensuring that all the pins are fully connected. Check also that the pins are fully seated and that the flex cable stiffener around the pins is not bent upward, see Figure: Attach Flex Cable.

   Attach Flex Cable

   

2. Tighten the screws to 4 in-lbs.

3. Connect the opposite end of the flex cable to the corresponding connector on the IMU card ensuring that the contacts on the flex cable mate with the contacts on the connector, as shown in Figure: Attach Flex Cable.

4. Check that the flex cable is locked in place.

Figure: Incorrect (Bowed) Flex Cable Installation shows an incorrect installation of the flex cable where it is bowed in the middle. It will not operate properly in this position. Figure: Correct (Flat) Flex Cable Installation shows the proper installation of the flex cable. Notice how the flex cable sits flush against the IMU surface. Incorrect (Bowed) Flex Cable Installation Correct (Flat) Flex Cable Installation