Mettler Toldeo Sys Stim 240
Mettler Toldeo · Model Sys Stim 240
The Sys Stim 240 has nine discrete waveforms: Interferential (4 POLE ) Premodulated (2 Pole) Medium Frequency (Russian) Biphasic High Volt Pulsed Galvanic Microcurrent TENS-Asymmetrical Biphasic TENS-Symmetrical Biphasic and Galvanic (Continuous DC) waveforms
Key tips
- ·Most "no output" stim-unit complaints are cable-side - check electrode/lead continuity before assuming a unit fault.
- ·Frame and strap wear on mechanical rehab equipment is a real fall/injury risk - don't defer it as cosmetic.
Typical Failure Modes
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Electrode / pad wear
LowSymptoms: Poor stimulation, skin irritation.
Root cause: Adhesive/surface wear.
Lead wire fatigue
MediumSymptoms: Intermittent stimulation, no output on one channel.
Root cause: Repeated flexing at connector.
Intensity control fault
LowSymptoms: Output won't adjust, stuck at one level.
Root cause: Potentiometer or control board wear.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Rechargeable battery
Class Periodic replacementRel. cost $R&R Fairly easy
TENS / stim electrodes
Consumable.
Class ConsumableRel. cost $R&R Easy
Lead wire set
Class Frequent wear itemRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Rechargeable battery | Periodic replacement | $ | Fairly easy |
| TENS / stim electrodes Consumable. | Consumable | $ | Easy |
| Lead wire set | Frequent wear item | $ | 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.
- ·Frame and strap wear inspection
- ·Electrode lead continuity check
- ·Annual electrical safety test
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Electrode / pad wear
- Confirm the presentation - typically poor stimulation, skin irritation - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: adhesive/surface wear.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the tENS / stim electrodes per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Lead wire fatigue
- Confirm the presentation - typically intermittent stimulation, no output on one channel - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: repeated flexing at connector.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the lead wire set per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Physical therapy / rehab gym
- Outpatient rehab clinic
- Sports medicine
Documents & Manuals
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