Thermo Scientific Jouan IG 650
Thermo Scientific · Model Jouan IG 650
Ideal for cultures on semi-solid media or very low volumes (type microplates): Total control of evaporation of the culture media. Stable, homogeneous temperature: Recovery under five minutes after 30 sec opening with patented heat generator. 40 liter water jacket plus insulation. Constant Relative Humidity: Fast RH recovery thanks to built-in patented vapor generator Adjustable Relative Humidity: Range 65% to 98% to provide a natural environment. Not just a display. Protected gas supply: Twin CO2 inputs with built-in shuttle valve maintains the supply when one cylinder empties. Precise culture conditions: %RH accuracy +1%. Temp. accuracy +0.1°C, homogeneity +0.25°C. CO2 accuracy +0.1%, homogeneity +0.25%. Protection against contamination: HEPA-type 0.22µm sterile membrane filtration of gas and water. High precision: Infra-Red CO2 detector, independent of temperature and humidity. Microprocessor controlled. Thermal buffer: Water jacket and insulated walls protect against temperature variation. Fully alarmed: All control parameters plus water level and door ajar. Traceability guaranteed: Optional RS 232C interface enables monitoring and remote control of the incubator. Space saving independence: Units are stackable while retaining individual controls.
Key tips
- ·Run QC controls before trusting any repair - an analyzer that passes self-test can still report clinically wrong results.
- ·Rule out a reagent lot change before opening the instrument - it can look exactly like a hardware fault.
- ·Centrifuge rotors have a hard retirement age/cycle limit regardless of visible condition - don't eyeball it.
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.
Will not hold set temperature
HighSymptoms: Chamber above or below setpoint, temperature alarm, slow recovery after the door opens.
Root cause: Heater element, a temperature-sensor / controller fault, a door / gasket leak, or a circulation-fan fault.
CO2 concentration fault (CO2 incubator)
HighSymptoms: CO2 above or below setpoint, CO2 alarm, pH drift in cultures.
Root cause: CO2 sensor (TC or IR) drift, an empty / low CO2 supply, or a solenoid / regulator fault.
Humidity fault (CO2 incubator)
MediumSymptoms: Low humidity, plates drying out, condensation problems.
Root cause: Empty water pan, or an evaporation / airflow issue.
Over-temperature safety trip
MediumSymptoms: Chamber stops heating, over-temp alarm, will not restart.
Root cause: Controller / sensor fault driving the heater high, or an independent over-temp thermostat.
Door / gasket fault
LowSymptoms: Door will not seal, temperature swings, condensation at the door.
Root cause: Worn door gasket or a sagging hinge.
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 element
Class Major service partRel. cost $$R&R Moderate
Temperature sensor / controller
Class Major service partRel. cost $$R&R Moderate
CO2 sensor (CO2 incubator)
Class Periodic replacementRel. cost $$$R&R Moderate
CO2 solenoid / regulator (CO2 incubator)
Class Major service partRel. cost $$R&R Moderate
Door gasket
Class Periodic replacementRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Heater element | Major service part | $$ | Moderate |
| Temperature sensor / controller | Major service part | $$ | Moderate |
| CO2 sensor (CO2 incubator) | Periodic replacement | $$$ | Moderate |
| CO2 solenoid / regulator (CO2 incubator) | Major service part | $$ | Moderate |
| Door gasket | Periodic replacement | $ | Fairly 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.
- ·Daily QC controls run and reviewed
- ·Calibration verification per assay
- ·Routine cleaning and decontamination
- ·Scheduled reagent-path and pump-tubing maintenance
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: Will not hold set temperature
- Compare the chamber to an independent calibrated thermometer at several points.
- Confirm the door seals and the gasket is intact.
- Check the circulation fan runs.
- Verify the heater draws current.
- Replace the sensor, controller or heater as isolated, then verify stability over several hours.
Symptom: CO2 out of range (CO2 incubator)
- Verify CO2 with an independent calibrated analyser (Fyrite or electronic).
- Confirm the CO2 supply pressure and that the cylinder is not empty.
- Check / calibrate the CO2 sensor per the manual (TC sensors drift with humidity and door openings).
- Inspect the inlet filter and solenoid.
- Recalibrate and re-verify against the reference.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Central / core laboratory
- Point-of-care testing stations
- Blood bank
- Microbiology lab
Documents & Manuals
No documents available for this device yet.
Related calculators
From BioLab, for work done with this kind of equipment.
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