📝 Event: 2026-07-09_objective_turret_cleaning_and_recalibration
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📊 Report Overview
Event Metadata
Record Type
Maintenance Event
Maintenance Event
Reason / Suite
Check
Check
Service Provider
internal
internal
Instrument
scope-testx1Maintenance Action
Reason Details:
Weekly QC trend indicated slight channel-dependent focus offset after objective changes, suggesting turret contact contamination.
Weekly QC trend indicated slight channel-dependent focus offset after objective changes, suggesting turret contact contamination.
Action Details:
Cleaned turret electrical contacts and objective shoulders with approved solvent, then recalibrated parfocal offsets for 20x/40x/60x objectives.
Cleaned turret electrical contacts and objective shoulders with approved solvent, then recalibrated parfocal offsets for 20x/40x/60x objectives.
Status After Fix:
IN_SERVICE
Additional Notes
Offsets improved from max 1.9 um to below 0.6 um across tested objectives.
📄 Raw YAML Ledger
View 2026-07-09_objective_turret_cleaning_and_recalibration.yaml
schema_version: 1
record_type: maintenance_event
maintenance_id: maint_scope-testx1_20260709_objective_turret_cleaning_and_recalibration
microscope: scope-testx1
service_provider: internal
company: Example Microscopy Core Facility
reference: INT-CORE-2026-411
started_utc: '2026-07-09T10:15:00Z'
ended_utc: '2026-07-09T12:05:00Z'
reason: check
reason_details: 'Weekly QC trend indicated slight channel-dependent focus offset after
objective changes, suggesting turret contact contamination.
'
action: clean
action_details: 'Cleaned turret electrical contacts and objective shoulders with approved
solvent, then recalibrated parfocal offsets for 20x/40x/60x objectives.
'
microscope_status_after: in_service
downtime_hours: 1.8
related_qc:
- qc_scope-testx1_20260709T0930Z_focusoffset_v1
- qc_scope-testx1_20260710T0730Z_focusoffset_v1
attachments:
- maintenance/events/scope-testx1/2026/attachments/2026-07-09_parfocal_table.csv
tags:
- objective
- turret
- cleaning
- calibration
followup: 'Include objective switch stress-test in monthly QC set.
'
next_due_date: '2026-08-05'
notes: 'Offsets improved from max 1.9 um to below 0.6 um across tested objectives.
'
contact: 'Responsible staff: Elina Vainio'
status_notes: Fully functional