Eagle 754 Service ToolkitOverviewService procedureSafetyHardware

Front-panel procedures (no software required)

Both procedures are documented in the OEM Operation & Service Manual.

USER PROGRAMS menu - read the PM counters and firmware version

  1. MODE switch to OFF.
  2. Press and hold MUTE/CANCEL and MANUAL BREATH/TRIGGER together.
  3. While holding both, turn MODE to A/C, SIMV, CPAP or CAL.
  4. The LCD enters USER PROGRAMS. The bottom line of every menu page shows:
  5. #### Hrs - cumulative hours of operation since the last preventive maintenance
  6. ### Dys - cumulative days since the last preventive maintenance
  7. Version #.## - firmware version

Write all three down before and after any reset; they are the proof that the reset worked.

Menu items: LCD backlight threshold (SAVE stores it), LCD contrast (SAVE stores it), trigger level sensitivity (temporary), set spontaneous flow (temporary), DEMONSTRATION MODE (training without disconnect alarm / proximal transducer; cancelled at power-off), TEST BACKUP VENTILATOR. Press the button next to EXIT to leave.

MODE = CAL - transducer zero

  1. Disconnect the patient circuit so the transducer (green) barb is at ambient pressure. Do not occlude anything.
  2. Turn MODE to CAL. The AMC shows the calibration-in-progress message; wait ~3 s until it reports complete. Turning the knob away early causes TRANSDUCER CALIBRATION ABORT.
  3. Turn MODE to the desired mode; the bar graph should sit at 0 cmH2O.

The firmware also re-zeroes automatically during SELF-CHECK and (firmware 1.85X) every 5 minutes (AUTO CAL). After an RTC reset the manual says the unit reboots with a Transducer Calibration alarm and must be put in CAL mode once.

DEMO mode for classroom use

USER PROGRAMS → DEMONSTRATION MODE gives A/C DEMO, SIMV DEMO and CPAP DEMO: settings, alarms and simulated waveforms without gas. It cancels at power-off. It does not clear the PM advisory, which is why the serial reset is needed.

Advisory texts you may see on the message centre

Text Meaning Cleared by
PREVENTATIVE MAINTENANCE DUE - CONTACT CUSTOMER SERVICE (or the short form) 2000 h or 12 months since the last PM, from the RTC's maintenance clocks the RTC reset (pm-reset); MUTE only silences the tone
EXTENDED NON-USE/STORAGE - TEST BEFORE PATIENT USE raised at power-up after 6 months of continuous non-use, tracked by the same RTC running the unit; a stored training unit will show it and it is not a failed reset
TRANSDUCER CALIBRATION - DO NOT ATTEMPT PATIENT USE / TRANSDUCER CALIBRATION ABORT transducer needs zeroing, or CAL was interrupted MODE → CAL
VENTILATOR FAILURE DETECTED / FAILURE CODE n SELF-CHECK failure; the unit does not cycle and cannot be calibrated until cleared see the code table below, then power-cycle / MODE → CAL

Failure codes depend on the firmware version shown in USER PROGRAMS (source: Impact service worksheet Rev G/H):

Code Ver 1.83X Ver 1.85X
1 Transducer Cal Fail Transducer Cal Fail
2 No Gas, Compressor No Gas, Compressor
3 Total Flow Backup Excessive Airway Pressure
4 Excessive Airway Pressure Memory Check
5 Memory Check Exhalation Valve Failure
6 Exhaust Valve Fail Excessive Negative Pressure
7 Excessive Negative Pressure Run-Time Cal Fail

What the front panel cannot do

There is no front-panel path to reset the PM clock. The manual's only reset is the PC program over RS-232 (section Computer Calibration, 4.0 "Initializing EEPROM / Resetting the Real Time Clock").