Accu-Scope 3012
Accu-Scope · Model 3012
Ease of Viewing, Maximum Flexibility - With 22mm field of view eyepieces and an eyepoint height that is adjustable, it can be raised 35mm by rotating the eyepiece tubes up 180° to accommodate the needs of various users. Sharp, High-Resolution Optics - ACCU-SCOPE's Infinity E-plan objectives provide users with best in class high resolution, high contrast objectives. Objectives are available in plan achromat and plan phase configurations. Reckless Stage - The reckless, scratch resistant rectangular stage has low-positioned X-Y coaxial controls.
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.
Uneven illumination / dark periphery
MediumSymptoms: Vignetting or uneven brightness across the field, dark edges.
Root cause: Revolving nosepiece not fully at a click-stop, condenser mis-positioned or aperture wrong, or a dirty collector lens.
Poor image quality / low resolution
MediumSymptoms: Blurry or low-contrast image, cannot focus sharply.
Root cause: Wrong or missing cover glass, immersion oil on a dry objective, air bubbles in the oil, or condenser height/aperture set wrong.
LED illuminator failure
MediumSymptoms: No light or dim light, will not brighten.
Root cause: LED module (rated ~20,000 h) at end of life, or a driver / rheostat fault.
Stage / focus mechanism wear
LowSymptoms: Focus drifts, coarse/fine knobs slip or bind, X-Y stage stiff.
Root cause: Worn focus rack or slipping-clutch tension, or dried grease in the stage.
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.
Objective lens
Class Major service partRel. cost $$$R&R Fairly easy
Focus mechanism / clutch service kit
Class Major service partRel. cost $$R&R Difficult
Illuminator driver / rheostat
Class Major service partRel. cost $$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Objective lens | Major service part | $$$ | Fairly easy |
| Focus mechanism / clutch service kit | Major service part | $$ | Difficult |
| Illuminator driver / rheostat | Major service part | $$ | Moderate |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
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: Dark or uneven field
- Rotate the nosepiece firmly into a click-stop with the objective correctly in the optical path.
- Clean the eyepiece, objective, condenser and collector lens.
- Set the condenser to the correct height and adjust the aperture diaphragm to the objective.
- Verify Kohler illumination alignment.
- If still uneven with clean, aligned optics, check the LED module and its centring.
Symptom: Cannot get a sharp image
- Confirm a 0.17 mm cover glass is fitted and the slide is right-side up.
- Check for immersion oil on a dry objective (especially 40xR) and clean if present; use oil with the 100xR.
- Remove air bubbles from the immersion oil.
- Set the condenser aperture correctly.
- Clean all optical surfaces and re-check.
Technical Specs
- Field of view
- 0.1 to 22
Documents & Manuals
Related calculators
From BioLab, for work done with this kind of equipment.
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