B. Braun Dialog Plus
B. Braun · Model Dialog Plus
B. Braun Dialog® PLUS Hemodialysis System B. Braun's new Dialog® Plus Hemodialysis System incorporates sophisticated medical technology while offering convenient handling in an appealing and ergonomic design. This state-of-the-art hemodialysis system achieves an ideal balance for ease of operation with its flat screen technology and innovative use of icons on a color touch screen, a flat monitor display to facilitate fast and easy handling, on-screen HELP functions that can be accessed instantly and a wide selection of pre-programmed and user-definable treatment profiles. Dialog Plus Hemodialysis System's unique On-Line Technical Data and Advanced Technical Service Mode provide the technician with a complete on-screen technical overview available while in the dialysis mode and during maintenance, thus reducing troubleshooting and maintenance downtime. Graphic display capabilities providing an overview of the subsystem components, and configuration screens which allow the technician to set default treatment values and modes, simplify servicing problems and can help to shorten technician training time. 270 degree rotatable color screen allows for easy viewing from all angles.
Key tips
- ·Conductivity and water-quality checks are non-negotiable before every shift - dialysate chemistry errors are a direct patient-harm mechanism.
- ·Confirm disinfection cycle completion, never assume it, after every use.
- ·Treat a blood-leak detector fault as real until proven otherwise - never silence and continue.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Conductivity / temperature / dialysate-prep alarm
HighSymptoms: Conductivity or temperature out of range, dialysate-preparation alarm, treatment will not start.
Root cause: Concentrate connection / supply, a heater fault, a conductivity-cell fault, or a proportioning-pump / valve fault.
Blood or dialysate pump fault
MediumSymptoms: Pump will not run at set speed, occlusion or flow alarms, tubing walking in the raceway.
Root cause: Worn pump rotor / rollers or a motor / control fault.
Pressure-monitoring / air-detector fault
MediumSymptoms: Venous / arterial / TMP pressure implausible, air-detector false alarms or fails to detect.
Root cause: Transducer-protector wetting, a pressure-sensor fault, or an air-detector fault.
UF / balancing-chamber fault
MediumSymptoms: Fluid-balance / UF alarms, weight loss inaccurate, balancing-chamber leak.
Root cause: Balancing-chamber diaphragm / valve wear or a flow-sensor fault.
Disinfection / rinse fault
MediumSymptoms: Heat or chemical disinfection will not complete, residual disinfectant test fails.
Root cause: Heater, a dosing / rinse valve, or a conductivity-verification fault.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Blood / dialysate pump rotor & rollers
Class Periodic replacementRel. cost $$R&R Moderate
Conductivity cell / temperature sensor
Class Periodic replacementRel. cost $$R&R Moderate
Pressure sensors / transducer protectors
Class Periodic replacementRel. cost $$R&R Fairly easy
Balancing-chamber diaphragm / valve kit
Class Periodic replacementRel. cost $$$R&R Difficult
Proportioning pump / valves
Class Major service partRel. cost $$$R&R Difficult
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Blood / dialysate pump rotor & rollers | Periodic replacement | $$ | Moderate |
| Conductivity cell / temperature sensor | Periodic replacement | $$ | Moderate |
| Pressure sensors / transducer protectors | Periodic replacement | $$ | Fairly easy |
| Balancing-chamber diaphragm / valve kit | Periodic replacement | $$$ | Difficult |
| Proportioning pump / valves | Major service part | $$$ | Difficult |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Disinfection cycle verification
- ·Conductivity and water-quality check
- ·Blood-leak detector test
- ·Scheduled tubing / filter replacement
- ·Annual full PM
Error Codes
Extracted directly from this unit's own service manual.
Code 600System restored after power failure
Press AQ twice; Reestablish power supply
Code 1805TLC Alarms (SUP) Comm. Malfunction System Error
Press AQ twice; Contact technical service
Code 1816Actual UF volume deviation
Decrease UF volume; Increase time; Contact technical service
Code 1821UF volume too high
Press EQ button; Check patient weight; Contact technical service
Code 1824Patient connected?
Press AQ button twice; Check if patient is connected properly; Check if machine is in therapy mode
Code 1826High UF volume error-terminate dialysis
End of therapy; Contact technical service
Code 2059Ration gross UF/blood flow too low
Press AQ button twice; Decrease UF volume; Increase blood pump; Extend therapy time
Code 1831Blood detected in preparation/disinfection
Press AQ button twice; Change into therapy; Disconnect patient from machine
Code 1900The selected interval is over
Select different interval
Code 1903Selected UF volume too high
Decrease UF volume
Code 1904Selected UF volume too low
Increase UF volume
Code 1905Selected UF time too high
Decrease UF time
Code 1906Selected UF time too low
Increase UF time
Code 1907Interval cannot be modified
Do not modify last interval
Code 1908Max UF rate has profile modified
Change UF rate
Code 1911Selected heparin rate too high
Decrease heparin rate
Code 1912Selected heparin rate too low
Increase heparin rate
Code 1913Required UF volume too high
Decrease UF volume; Extend therapy time
Code 1914Selected UF rate too low
Increase UF volume; Reduce therapy time
Code 1915UF profile was modified
Change UF rate
Code 1916Max. UF rate too high
Decrease UF rate
Code 1917Max UF rate < min UF rate +100 mL/h
Increase maximum UF rate
Code 1922UF volume has been decreased
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Conductivity / temperature / dialysate-prep alarm / treatment will not start
- Confirm the concentrate is connected, correct and not empty.
- Verify dialysate conductivity and temperature with independent calibrated meters.
- Check / calibrate the conductivity cell and temperature sensor.
- Inspect the proportioning pumps / valves and de-air the hydraulics.
- Do not treat until conductivity and temperature are verified in range.
Symptom: Blood or dialysate pump fault / occlusion or flow alarm
- Inspect the pump rotor and rollers for wear and correct the occlusion setting.
- Reseat the tubing segment in the raceway.
- Check the pressure transducers and their protectors for wetting.
- Calibrate the pressure channels.
- Replace the rotor / rollers or a faulty sensor as isolated.
Symptom: Pressure / air-detector / blood-leak alarm implausible or not triggering
- Verify each pressure channel against a reference.
- Test the air detector and the blood-leak detector per the service procedure.
- Clean the blood-leak detector optics.
- Calibrate the channels.
- Replace a sensor that fails its functional test - these are safety systems.
Symptom: UF / balancing-chamber fault / disinfection will not complete
- Check the balancing-chamber diaphragm / valves and the flow sensors.
- Run the UF calibration.
- For disinfection, check the heater, the dosing / rinse valves and the residual test.
- Replace the balancing-chamber kit as isolated.
- Verify fluid balance and a clean residual test before clinical use.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Dialysis unit / clinic
- ICU (acute dialysis)
- Home hemodialysis
Documents & Manuals
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