Sensor-specific Temperature Effects
Some sensors may experience temporary drift or performance degradation when exposed to extreme temperatures or rapid temperature changes:
Electrochemical Sensors
At temperatures below –20°C (–4°F), the electrolyte in sensors such as CO and H₂S may freeze, reducing sensor output.
Storing devices in a warm and humid environment (around 50% relative humidity) when not in use can extend sensor life.
Rapid temperatures changes can cause temporary drift, which typically resolves within 60 seconds.
Infrared (IR) LEL sensors
Moving from warm to cold: Drift may reach up to 10% LEL, resolving in under 60 seconds.
Moving from cold to warm: May trigger temporary overlimit conditions. If drift persists, manually zero the sensor in the operating environment.
These effects are temporary and not considered faults, but users should ensure temperature stabilization before relying on critical gas readings.
