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MR850 Technical Manual * Revision J * Issued November 2005 * Ref. 185041340 (185041713 internal)
31
6.4.3 Diagnostic Menu for Software Version 7.00 & 7.21
Display Description
HC Humidity Compensation (HC) algorithm
Invasive mode, compensation range is 0.0 to 3.0 °C ( CSP = 37.0 to 40 °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 (Non-Invasive mode only)
‘4.0’ = +4.0 °C of chamber compensation (Non-Invasive mode only)
‘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 3 °C in 0.5 °C steps
Non-invasive mode: 0 to 5 °C in 1 °C steps
CSP Chamber set point, in 0.1 °C resolution eg: 37.0
Invasive mode range 35.5 to 40 °C.
Non-Invasive mode range 31.0 to 36.0 °C.
Cdc Chamber Duty Cycle (%)
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
“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 (%)
Cct Connected Circuit heater identification:
“S“ = Standard inspiratory heater connected
“C” = Coaxial inspiratory heater connected
“E” = Expiratory heater connected
“---” = No heaters connected
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