fisher--paykel mr850 Manual De Usuario

 

MR850 Technical Manual   *   Revision J   * Issued November 2005   *   Ref.  185041340 (185041713 internal)

 

32 

HC 

Humidity Compensation (HC) algorithm 
Note: HC is inactive while operating under non-heater wire control. 
Invasive mode, compensation range is 0.0 to 5.0 °C ( CSP = 37.0 to 42 °C ) 
Non-Invasive mode, compensation range is 0.0 to 5.0 °C ( CSP = 31.0 to 36.0 °C ) 
By pressing the Mute and Mode buttons together for 1 second or pressing the Mute and Power buttons 
together for 1 second the user can respectively move up or down through the settings listed below.  The 
humidifier will confirm the change with a double-beep. 
‘5.0’ = +5.0 °C of chamber compensation 
‘4.0’ = +4.0 °C of chamber compensation 
‘3.0’ = +3.0 °C of chamber compensation 
‘2.0’ = +2.0 °C of chamber compensation 
‘1.0’ = +1.0 °C of chamber compensation 
‘0.0’ = +0.0 °C of chamber compensation (NO compensation) 
‘-A-‘ = Automatic humidity compensation mode: 

Invasive mode: 0 to 5 °C in 0.5 °C steps 
Non-invasive mode: 0 to 5 °C in 1 °C steps 

Cct 

Connected breathing circuit identification: 
  “S“ = Standard inspiratory heater connected 
  “C” = Coaxial inspiratory heater connected 
  “E” = Expiratory heater connected 
  “---” = No heaters detected while under heater wire control 

CSP 

Chamber set point, in 0.1 °C resolution eg: 37.0 
Invasive mode range 35.5 to 42 °C. 
Non-Invasive mode range 31.0 to 36.0 °C. 

Cdc 

Chamber Duty Cycle (%) 
During selection of this menu and while a chamber probe out test is active the chamber probe indicator will 
light. 

CHP 

Chamber Power / Flow ratio (W/LPM) 

hP 

Heater Plate Temperature (1 °C) 

Flo 

Gas Flow Rate (0.1 LPM) 
  “---“ = Unknown Flow (flow measurement not started) 

FLr 

Gas Flow Rate Range: 
  “---“ = Unknown Flow (flow measurement not started) 
  “no” = No flow, ( Stand-by ) 
  “Lo” = Low flow, ( < 3 LPM ) 
  “In”  = Intermediate flow, ( 2 to 17 LPM ) 
  “Hi”  = High flow, ( > 13 LPM ) 
  “  -“  = Ventilated flow detected 

ASP 

Airway temperature set point (0.1 °C) 

Adc 

Airway Duty Cycle (%) 
During selection of this menu and while an airway probe out test is active the airway probe indicator will light. 

H2O 

Water out number, used to detect the presence of chamber water, calculated from, chamber power / (heater 
plate temp. – chamber temp.). 
During selection of this menu and while the water out number falls below a dry chamber threshold the water 
out indicator will light. 

LAS 

Last Alarm State, the display will blank, and the humidifier’s last alarm will be shown on the indicators.  To 
clear LAS, press and hold the mute and mode buttons for 1 second.  The humidifier will beep when LAS has 
been cleared. 

LFS 

Last Fault State, refer to section 6.3.  To clear LFS, press and hold the mute and mode buttons for 1 second.  
The humidifier will beep when LFS has been cleared. 

SoF 

Software version 

End 

Press the mute button to cycle to the start of the menu, or the diagnostic menu will automatically exit after 6 
seconds.