If a dry gas canister expires, which outcome could occur?

If a dry gas canister expires, which outcome could occur?

• A. The system disables until replacement
• B. Nothing; system continues
• C. It triggers automatic self-calibration
• D. It switches to a backup mode

Answer: (A)

Expired dry gas canisters compromise the accuracy of calibration gas. The EC/IR II relies on a known, stable concentration of gas to calibrate and verify measurements. When the canister has passed its expiration, its gas concentration and purity may drift or moisture can enter, making calibration unreliable. To protect test integrity, the instrument disables until a fresh canister is installed and a new calibration is performed. It wouldn’t continue operating with expired gas, it wouldn’t automatically calibrate, and it wouldn’t switch to a backup mode.

Expired dry gas canisters compromise the accuracy of calibration gas. The EC/IR II relies on a known, stable concentration of gas to calibrate and verify measurements. When the canister has passed its expiration, its gas concentration and purity may drift or moisture can enter, making calibration unreliable. To protect test integrity, the instrument disables until a fresh canister is installed and a new calibration is performed. It wouldn’t continue operating with expired gas, it wouldn’t automatically calibrate, and it wouldn’t switch to a backup mode.