Changing the silicone plug - GMP231

GMP231 User Guide

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Change the silicone plug if it shows visible signs of contamination. It is best to replace the filter also.

  1. Pull the white PTFE filter away from the sensor. Rotating the filter slightly makes it easier to detach
  2. Lift one edge of the plug and pull it away from the installation tube.
  3. Use clean instrument air to gently blow any loose dirt and filter material away from the sensor.
  4. Clean the installation tube and the wall around the plug.
  5. Place the new silicone plug over the sensor and push it into the installation tube.
  6. Take a new clean filter and push it onto the sensor. Push and rotate the filter slightly to make sure it is fully in place.
    Figure 1. Changing the silicone plug