Espion
DIAGNOSYS LLC · Model D315
E3 System; with Xenon ColorDome on an Operating Room Stand and 23" Monitor; 220V is a clinical and research visual electrophysiology system that functions by presenting a light stimulus to the eye, and then capturing, displaying, and storing the waveform of the electrical response from the retina (corneal electrode) or brain (occipital skin electrodes). Configuration: D315-1-2-CDXRL-23-N-N.
Intended use: An ophthalmic device used to record the changes in electric potential on or near the surface of the cornea to a reference distal point on the body, following stimulation of the retina by light, i.e., flashes of white light. The electroretinograph (ERG) recorder is used with a primary electrode [typically gold (Au), platinum (Pt) or silver (Ag)] and a reference electrode located almost anywhere on the body, e.g., cheek or ear lobe, and an amplifier that boosts the bioelectrical potential. Some are compatible with a personal computer (PC) for waveform storage and analysis. It is used in the diagnosis of retinal degeneration, night blindness, and circulatory disturbances of the retina.
Key tips
- ·Verify laser output with a real power meter, not the unit's own display - the display can drift independently of true output.
- ·Take "the image looks a little off" reports seriously - optical alignment drift is usually gradual, not sudden.
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.
Optical / illumination fault
MediumSymptoms: Dim, uneven or no illumination; poor or hazy view; slit / filters not working.
Root cause: Bulb / LED at end of life, a power-supply fault, or contaminated optics.
Alignment / positioning-stage fault
MediumSymptoms: Joystick or slide binds, will not hold position, chin-rest / head-rest drive faults.
Root cause: Worn stage bearings / slides or a positioning-drive fault.
Measurement / capture fault
MediumSymptoms: Reading errors (tonometer / autorefractor / lensmeter), no or poor image capture (fundus / OCT), calibration fails.
Root cause: Sensor / camera fault, a calibration issue, or contaminated measurement optics.
Printer / PC / connectivity fault
LowSymptoms: No printout, images / data will not save or transfer.
Root cause: Built-in printer, the PC, or the network / EMR interface.
Motorised table / chin-rest fault (where fitted)
LowSymptoms: Instrument table or chin-rest will not raise / lower.
Root cause: Table / chin-rest actuator or its switch.
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.
Illumination bulb / LED module
Class Frequent wear itemRel. cost $$R&R Fairly easy
Positioning-stage bearings / slides
Class Major service partRel. cost $$R&R Moderate
Measurement sensor / camera module
Class Major service partRel. cost $$$R&R Moderate
Built-in printer / paper
Class Periodic replacementRel. cost $R&R Fairly easy
Chin-rest / table actuator
Class Major service partRel. cost $$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Illumination bulb / LED module | Frequent wear item | $$ | Fairly easy |
| Positioning-stage bearings / slides | Major service part | $$ | Moderate |
| Measurement sensor / camera module | Major service part | $$$ | Moderate |
| Built-in printer / paper | Periodic replacement | $ | Fairly easy |
| Chin-rest / table actuator | Major service part | $$ | 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.
- ·Optical alignment / calibration check
- ·Lamp or laser output verification
- ·Annual 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: Dim, uneven or no illumination
- Replace the bulb / LED module with the correct type.
- Check the power supply and rheostat / brightness control.
- Clean the illumination and viewing optics per the manual.
- Confirm the slit, filters and apertures operate.
- Replace the power supply if output is still low.
Symptom: Measurement or capture error
- Run the instrument self-test / calibration.
- Clean the measurement window / objective.
- Verify against a model eye / test target where one exists.
- Confirm patient positioning and fixation.
- Refer the sensor / camera module if calibration will not hold.
Technical Specs
- Storage Environment Temperature
- -10°C to 70°C
- Handling Environment Temperature
- -10°C to 70°C
- Storage Environment Humidity
- 10 Percent (%) Relative Humidity to 100 Percent (%) Relative Humidity
- Handling Environment Humidity
- 10 Percent (%) Relative Humidity to 100 Percent (%) Relative Humidity
- Storage Environment Atmospheric Pressure
- 50 KiloPascal to 106 KiloPascal
- Handling Environment Atmospheric Pressure
- 50 KiloPascal to 106 KiloPascal
- MRI safety
- Labeling does not contain MRI Safety Information
- Sterile
- No
- Single use
- No
- FDA distribution status
- In Commercial Distribution
- Device type (GMDN)
- Electroretinograph
- FDA product classification
- Stimulator, Photic, Evoked Response
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Eye clinic / ophthalmology suite
- Operating Room (ophthalmic surgery)
Documents & Manuals
No documents available for this device yet.
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