Condensation monitoring in aspirating smoke detection systems

An aspirating detection system for monitoring an environment, the aspirating detection system comprising:

• a central detection unit configured to analyze sample air from the monitored environment;
• a sampling pipe for providing the sample air to the central detection unit from the monitored environment, wherein the central detection unit is configured to draw the sample air along the sampling pipe;
• at least one ambient temperature sensor configured to sense an ambient temperature value corresponding to an ambient temperature outside of the aspirating detection system;
• at least one sample air temperature sensor configured to sense a sample air temperature value corresponding to a temperature of the sample air;
• and
• a controller configured to determine a condensation occurrence condition is met when a difference between the sample air temperature value and a corresponding ambient temperature value exceeds a condensation threshold value;
• the controller is configured to decrease a speed of an aspirating device of the central detection unit in response to determining that the condensation occurrence condition is met.