Chapter 5
Diagnostic Mode and Troubleshooting
REF 1029568 Rev B
BiPAP Focus Ventilator Service Manual © Respironics, Inc.
5-19
22
CORRUPT CALIBRATION
TABLE
Controller processor detected a calibration data checksum error.
1. Attempt to recalibrate the system.
2. If calibration fails, replace the controller PCB.
3. Retrieve the DRPT and contact technical support.
23
INVALID ZERO FLOW VALUE
IN CALIBRATION TABLE
Controller processor detected that the flow sensor drift check has failed. (Flow
sensor drift and calibration information can be monitored using the RASP utility:
select option
D) Drift Screen
from the RASP utility menu).
1. Attempt to recalibrate the system.
2. If calibration fails, replace the controller PCB.
3. Retrieve the DRPT and contact technical support.
24
UNRECOGNISED VERSION OF
CALIBRATION TABLE
Controller processor detected that the calibration table version check has failed.
1. Attempt to recalibrate the system.
2. If calibration fails, replace the controller PCB.
3. Retrieve the DRPT and contact technical support.
25
EXCESSIVE DRIFT ON FLOW
SENSOR
Controller processor detected that the flow sensor drift check has failed. Flow
sensor drift and calibration information can be monitored using the
D) Drift
Screen
from the debug screen using the RASP utility, capture screen output to a
file.
1. Attempt to recalibrate the system.
2. If calibration fails, replace the controller PCB.
3. Retrieve the DRPT and contact technical support.
27
EXCESSIVE DRIFT ON
PRIMARY PRESSURE
SENSOR
Controller processor detected that the drift check on the primary pressure has
failed. Pressure sensor drift and calibration information can be monitored using
using the "D) Drift Screen" from the debug screen using the RASP utility, capture
screen output to a file.
1. Attempt to recalibrate the system.
2. If calibration fails, replace the controller PCB.
3. Retrieve the DRPT and contact technical support.
28
EMPTY CALIBRATION TABLE
Controller processor detected that the calibration table is blank.
1. Attempt to recalibrate the system.
2. If calibration fails, replace the controller PCB.
3. Retrieve the DRPT and contact technical support.
29
EXCESSIVE DRIFT ON
REDUNDANT PRESSURE
SENSOR
Controller processor detected that the drift check on the secondary pressure has
failed.
1. Attempt to recalibrate the system.
2. If calibration fails, replace the controller PCB.
3. Retrieve the DRPT and contact technical support.
30
UNRECOGNIZED VERSION OF
PARAMETER STORAGE
Controller processor detected an error in format of the calibration data in
EEPROM.
1. Attempt to recalibrate the system.
2. If calibration fails, replace the controller PCB.
3. Retrieve the DRPT and contact technical support.
Table 5-3: Significant Event Codes (Continued)
Event ID
Comment / Corrective Action
