244 Display and Operational Controls4.4.4 Main Menu - SettingsMeaning of the symbols: Required access levelMaintenance mode WithoutFilter time of the measured values WithoutAnalogue outputs At least 1 (Customer) or higherTriggering of probe replacement At least 1 (Customer) or higherCO trigger threshold At least 2 (Service)Display parameters WithoutDigital outputs At least 2 (Service)Limit values At least 1 (Customer) or higher
