WEM Argon 2
WEM · Model Argon 2
Argon 2 + SS-200E - Electrosurgical system for endoscopy and colonoscopy surgery [list] [*] digital display for argon gas flow [*] adjustable argon flow between 0 and 5 l/min [*] adjustment increments for gas flow 0.5 l/min [*] led indicator for activated argon plasma coagulation mode [*] led indicator for energized equipment [*] purge key at frontal panel [*] adjustment keys at frontal panel [*] permits use of footswitch operated pencils and WEM catheters [*] 2 stages of pressure adjustment through subpressure valve at outlet [*] connection to gas cylinder [/list]
Key tips
- ·Never defeat or bypass a return-electrode monitoring (REM) alarm to finish a case - it's a direct burn risk.
- ·Verify OR table battery backup - a table that loses power mid-procedure is a real, documented incident type.
- ·Track surgical light lamp-hours rather than waiting for failure - a sudden failure mid-case is avoidable.
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.
No or low RF output / high-impedance cut-out
HighSymptoms: No cut / coag effect, "high impedance" or output-error message, output shuts down.
Root cause: Poor electrode contact or a dry field, a damaged handpiece / cable, a return-electrode (REM/NESSY) fault, or an output-stage fault.
Return-electrode (patient-plate) contact-quality alarm
MediumSymptoms: REM / NESSY / plate alarm, monopolar output inhibited.
Root cause: Poorly applied or dried split dispersive pad, a pad-cable fault, or the contact-quality-monitor circuit.
Argon flow / plasma-ignition fault
MediumSymptoms: Argon does not flow, plasma will not ignite, gas-supply or APC-probe alarm.
Root cause: Empty / low argon supply, a flow-control valve fault, or an APC-probe / connector fault.
Fails calibration / output drifts after a repair
MediumSymptoms: Output power or the REM circuit outside tolerance on the analyser.
Root cause: Output board or REM circuit needs recalibration - anti-static handling required.
Footswitch / handswitch fault
MediumSymptoms: Output will not activate from the pedal or the handpiece.
Root cause: Footswitch or handswitch / cable fault.
Touchscreen / display / boot fault
LowSymptoms: Unresponsive touchscreen, will not power on or boot, fan / thermal alarm.
Root cause: Display, power supply, control board, or a cooling-fan 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.
Reusable instrument / handpiece cables
Class Periodic replacementRel. cost $$R&R Easy
Split dispersive (return) pads
Class ConsumableRel. cost $R&R Easy
Footswitch
Class Periodic replacementRel. cost $$R&R Fairly easy
APC probe / argon flow-control valve
Class Periodic replacementRel. cost $$$R&R Moderate
RF output board
Recalibration required after replacement; anti-static handling.
Class Major service partRel. cost $$$$R&R Difficult
Cooling fan
Class Major service partRel. cost $R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Reusable instrument / handpiece cables | Periodic replacement | $$ | Easy |
| Split dispersive (return) pads | Consumable | $ | Easy |
| Footswitch | Periodic replacement | $$ | Fairly easy |
| APC probe / argon flow-control valve | Periodic replacement | $$$ | Moderate |
| RF output board Recalibration required after replacement; anti-static handling. | Major service part | $$$$ | Difficult |
| Cooling fan | Major service part | $ | Moderate |
Relative cost: $ lowest · $$$$ 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.
- ·Pre-case functional check
- ·Electrosurgical return-electrode cable inspection
- ·Table hydraulic / mechanical inspection
- ·Annual electrical safety test and full PM
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: No or low RF output / high impedance
- Confirm good electrode-tissue contact and an adequately wetted field.
- Inspect the handpiece / instrument and cable for damage; substitute known-good.
- Check the split dispersive pad is well applied with full skin contact and a good cable.
- Verify output into a resistive test load with an electrosurgical analyser.
- Replace the output board and recalibrate if output is confirmed absent (anti-static workplace).
Symptom: Return-electrode / plate alarm
- Re-apply a fresh split dispersive pad with full skin contact over well-perfused muscle.
- Check the pad cable and connector.
- Try a known-good pad.
- Run the contact-quality-monitor calibration if it still alarms with a good pad.
- Do calibration on a non-conductive surface.
Technical Specs
- Height
- 7.4 cm
- Length
- 26 cm
- Weight
- 5.5 kg
- OutPut Frequency
- 480 kHz
- Width
- 24.3 cm
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating rooms
- Procedure rooms
- Interventional suites
Documents & Manuals
No documents available for this device yet.
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