Environmental Characteristics Operation temperature -30 °C to 70 °C / -22 °F to +158 °F Temperature cycling acceptance criteria Δα ≤ 0,15 dB, reversible Temperature cycling -30 °C 70 °C / -22 °F +158 °F Temperature cycling - reversible acceptance criteria Δα ≤ 0,05 dB after test Temperature cycling - reversible test method IEC 60794-1-22:F1 […]