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Ref. 185040646 *MR730/720/700/480 Technical Manual ¯ Revision F ¯ Issued March 2001
CONTENTS PAGE1.0 MR700 SERIES GENERAL SPECIFICATIONS ................................................................................1
1.1 Electrical Specifications ................................................................................................................................................................1
1.1.1 Models MR730/720/700...................................................................................................................................................1
1.1.2 Model MR480....................................................................................................................................................................1
1.1.3 Common Electrical Specifications (All Models)...........................................................................................................1
1.2 Standards and Approvals................................................................................................................................................................1
1.3 Temperature Control......................................................................................................................................................................1
1.4 Temperature Sensing.....................................................................................................................................................................1
1.5 Temperature Display......................................................................................................................................................................2
1.6 Glossary of Abbreviations..............................................................................................................................................................2
2.0 OPERATING CONTROLS AND MODES ..........................................................................................3
2.1 Adjustable Controls ........................................................................................................................................................................3
2.1.1 Airway Temperature Control..........................................................................................................................................3
2.1.2 Chamber Control (Heater Wire On Mode Only)..........................................................................................................3
2.2 Push Switches..................................................................................................................................................................................3
2.2.1 Mute Button......................................................................................................................................................................3
2.2.2 Chamber Temp Button.....................................................................................................................................................3
2.2.3 Standby Button (MR700/720/730 only).........................................................................................................................4
2.2.4 Heater Wire Switch (MR720, MR730 only)...................................................................................................................4
2.3 Power Up Sequences .......................................................................................................................................................................4
2.3.1 Version 1.0 Software.........................................................................................................................................................4
2.3.2 Version 2.0 and Version 3.0 Software ............................................................................................................................4
2.4 Heater Wire On Mode (All models except MR480)..................................................................................................................4
2.5 MR730/720 in Heater Wire Off Mode and MR480..................................................................................................................4
2.6 Warm Up Mode.................................................................................................................................................................................5
2.6.1 Warm up mode exiting conditions (low temperature alarm enabled):.......................................................................5
2.6.2 MR720 (Version 2.0, 3.0 Software).................................................................................................................................5
2.7 Standby Mode....................................................................................................................................................................................5
2.7.1 MR700/MR730 (All software versions), MR720 (Version 1.0 Only).........................................................................5
2.7.2 MR720 Standby Mode (Version 2.0 and 3.0 software only)......................................................................................5
3.0 ALARMS AND INDICATORS............................................................................................................. 6
3.1 Temperature Probe Alarm.............................................................................................................................................................6
3.2 Alarms In Heater Wire Mode (MR700/720/730 only).............................................................................................................6
3.2.1 Heater Wire Alarm............................................................................................................................................................6
3.2.2 Airway temperature High Alarm.....................................................................................................................................6
3.2.3 Airway temperature Low Alarm......................................................................................................................................6
3.2.4 Chamber Temp High Alarm.............................................................................................................................................7
3.2.5 Chamber Temp Low Alarm activation........................................................................................................................... 7
3.2.6 Set Low Warning..............................................................................................................................................................7
3.3 Temperature Alarms in Non Heater Wire Mode (includes MR480).....................................................................................7
3.3.1 Heater Wire Alarm............................................................................................................................................................7
3.3.2 Airway Temperature High Alarm...................................................................................................................................7
3.3.3 Airway Temperature Low Alarm....................................................................................................................................7
3.4 Audio Alarm.....................................................................................................................................................................................8
3.5 Safety Protection (All Models)......................................................................................................................................................8
3.5.1 Temperature Deviations.................................................................................................................................................. 8
3.5.2 Microprocessor Watch Dog...........................................................................................................................................8