Damp Readings for Navigation Equipment

What is an acceptable damp reading?

Damp readings are used to determine the presence of moisture in electrical equipment. In the context of navigation equipment,

acceptable damp readings
should be below 20% relative humidity (RH), as higher levels of moisture can damage sensitive electronic components.

Importance of Damp Readings

Damp readings play a crucial role in ensuring the reliability and safety of navigation equipment. Excessive moisture can lead to corrosion, short circuits, and malfunctions, which can compromise the accuracy and functionality of the equipment.

By monitoring damp readings regularly, you can identify potential moisture issues early on and take steps to mitigate them.

Monitoring Damp Readings

Damp readings can be monitored using a hygrometer. Hygrometers are available in various forms, including handheld devices and fixed sensors that continuously monitor humidity levels. The accuracy of the hygrometer is critical, so it’s essential to use a reliable and well-calibrated instrument.

Interpreting Damp Readings

When interpreting damp readings, it’s important to consider the following factors:

  • Ambient Humidity: Relative humidity levels in the environment can affect the damp readings of the equipment.
  • Operating Temperature: The temperature of the equipment can influence the moisture content within it.
  • Time of Year: Seasonal changes in humidity levels can impact damp readings.

Acceptable Damp Readings

As mentioned earlier, acceptable damp readings for navigation equipment should be below 20% RH. Readings above this level may indicate the presence of moisture and should be investigated to determine the source and take appropriate corrective action.

Conclusion

Damp readings are essential for maintaining the integrity of navigation equipment. By monitoring damp readings regularly and interpreting them accurately, you can ensure the reliability and safety of your navigation systems.

Promptly addressing excessive damp readings can extend the lifespan of your equipment and prevent costly repairs or replacements.