Open and close the instrument

Remember to keep the O-ring clean and avoid scratching the O-ring mating surfaces. Carefully inspect the O-ring before deploying the instrument.

Opening the RBRduraturo4

  1. Twist the battery end-cap counterclockwise.

  2. Once fully unscrewed, pull the end-cap away from the housing.

Closing the RBRduraturo4

  1. Place the end-cap back on the instrument until almost fully closed.

  2. Twist the end-cap clockwise until aligned with the pause icon.
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Fig. 2.    The RBRduraturo4 with end-cap removed.