PR4-g Ventilation modes Adult / pediatric Assist-controlled VCV Assist-controlled PCV PSV / CPAP SIMV (VCV) + PSV Back-up ventilation (VCV) Back-up ventilation (PCV) NEONATAL Continuous flow Nasal CPAP Programmable alarms Maximum pressure Minimum pressure Maximum tidal volume Minimum tidal volume Apnea alarm time Maximum frequency Non-programmable alarms I:E ratio inversion PEEP O2 supply fail Interrupted cycle Controls / Programmable parameters FIO2: 50-100% Rise time: 10-100 L/min Inhalation time: 0.3 û 3 sec Frequency: 1 û 150 cpm Tidal volume: 10 û 1500 ml Inspiratory pressure: 2 û 30 H2O cm Support pressure: 2 û 30 H2O cm PEEP: 0 û 20 H2O cm Pressure trigger sensitivity: -0.5 to -10.0 H2O cm Altitude compensation: 0 û 6000 msnm Inspiratory pause 0.10 - 2 seg Monitoring / output parameters Peak airway pressure: 0 û 120 H20 cm Mean airway pressure: 0 û 100 H2O cm Inspiratory tidal volume: 50 û 1500 ml Frequency: 1 û 150 cpm I:E: 5:1 û 1:99 Graphic monitors Pressure-time waveform Waveform hold Auto scale Other features / functions Historic¦s alarms Lung mechanics: Auto PEEP