Biegler Protherm II
Biegler · Model Protherm II
Heating liquids without risk of contamination. Simple, fast and user-friendly operation. Liquid heated gently with three independently controlled heat zones. Permanently running self-tests and error display. Easy to service with serial interface. Ergonomic design make it easily transportable and mountable on all commercially available infusion stands. Temperature can be set from 37°C to 41°C in 0,5°C increments. Economical material. Fast availability. Low temperature alarm. Automatic adaptation of the heating control system to various media.
Key tips
- ·Never skip temperature-accuracy verification to save time - it's the one check that directly prevents burns.
- ·Hose/blanket connector wear is the most common real fault and the easiest to miss on a quick visual check.
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.
Fluid / blood not reaching target temperature
HighSymptoms: Output below target, low-temperature alarm, slow warm-up.
Root cause: Heater plate(s) or the heater-control circuit, or a temperature-sensor fault.
Over-temperature alarm / shutdown
HighSymptoms: The unit disables heating with an over-temperature condition (protects against haemolysis).
Root cause: Sensor or control fault driving the heater high, or an extreme flow-rate change.
Air-detector / bubble-trap alarm (rapid infusers)
MediumSymptoms: Air-in-line alarm, flow stops.
Root cause: Air in the set, an improperly primed set, or an air-detector fault.
Disposable-set detection / fitting fault
MediumSymptoms: Set not detected, will not clamp / seat, leaks at the warming chamber.
Root cause: Worn set-detection switch or chamber fitting.
Flow / pressure fault (rapid infusers)
MediumSymptoms: Cannot reach set flow, pressure alarm.
Root cause: Pump / roller fault or an occlusion.
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.
Heater plate(s) / heater-control assembly
Class Periodic replacementRel. cost $$$R&R Moderate
Temperature sensor
Class Major service partRel. cost $$R&R Moderate
Air-detector / bubble sensor
Class Major service partRel. cost $$R&R Moderate
Set-detection switch / chamber fitting
Class Periodic replacementRel. cost $$R&R Fairly easy
Disposable warming set
Class ConsumableRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Heater plate(s) / heater-control assembly | Periodic replacement | $$$ | Moderate |
| Temperature sensor | Major service part | $$ | Moderate |
| Air-detector / bubble sensor | Major service part | $$ | Moderate |
| Set-detection switch / chamber fitting | Periodic replacement | $$ | Fairly easy |
| Disposable warming set | Consumable | $ | Easy |
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.
- ·Hose / blanket connector inspection
- ·Temperature-accuracy verification
- ·Annual electrical safety test
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: Not reaching target temperature
- Confirm the correct programme / set for the fluid type and flow rate.
- Check both heater plates warm evenly.
- Verify the output temperature against an independent reference at a representative flow.
- Replace the temperature sensor if it disagrees.
- Replace the heater plate / control assembly if output is still low.
Symptom: Over-temperature alarm
- Let the unit cool and restart.
- Compare the displayed temperature to an independent reference.
- Check for an extreme flow-rate change during use.
- Replace the temperature sensor / control board as isolated.
- Confirm stable control across the flow range before returning to service.
Technical Specs
- Height
- 278 nm
- Length
- 96 mm
- Weight
- 5 kg
- Width
- 390 mm
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating Room
- PACU
- Emergency Department
- Labor & Delivery
- NICU
Documents & Manuals
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