Calibration Documents: Incubator Temp Sensor (30-35°C) (CAL-0155)

Asset ID	CAL-0155
Equipment	Incubator Temp Sensor (30-35°C)
Equipment Type	Incubator
Department	Microbiology
Area/Location	Incubation
Process Use	Microbial growth
Parameter	Temperature
Units	°C
Range Min	20
Range Max	60
Acceptance Criteria	±0.5°C
Calibration Frequency (days)	180
Calibration Type	External
Traceability	ISO17025

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Calibration SOP

1. Purpose

The calibration of the Incubator Temp Sensor (30-35°C) is performed to ensure accurate temperature readings within the specified range, which is critical for microbial growth processes. This calibration controls risks related to accuracy, patient safety, batch quality, and data integrity, thereby ensuring compliance with Good Manufacturing Practices (GMP).

2. Scope

• Asset ID: CAL-0155
• Equipment Name/Type: Incubator Temp Sensor (30-35°C) / Incubator
• Department/Area: Microbiology / Incubation
• Process Use: Microbial growth
• Parameter: Temperature
• Range: 20°C to 60°C
• Units: °C
• Calibration Frequency: 180 days

3. Definitions

• Calibration: The process of comparing a measurement device to a known standard to ensure accuracy.
• Verification: The process of confirming that a measurement device is functioning correctly.
• Adjustment: The act of modifying a measurement device to bring it within specified limits.
• As Found: The condition of the equipment prior to any adjustments.
• As Left: The condition of the equipment after adjustments have been made.
• OOT (Out of Tolerance): A condition where the measurement falls outside the specified acceptance criteria.
• Drift: The gradual change in a measurement device’s output over time.
• Traceability: The ability to verify the history, location, or application of an item by means of documented recorded identification.
• Measurement Uncertainty: A parameter that characterizes the range of values within which the true value is expected to lie.
• Intermediate Check: A periodic check of equipment performance between calibrations.

4. References

• Company Metrology SOP [TBD]
• ISO/IEC 17025 traceability via calibration certificates
• ALCOA+ principles

5. Responsibilities

• Technician/Metrology: Perform the calibration and document results.
• QC/QA Reviewer: Review calibration documentation and results for compliance.
• Owner Department: Ensure equipment is available and in good condition for calibration.
• External Service Provider: Conduct calibration as per external calibration type.

6. Safety & Preconditions

• Ensure environmental controls are in place (temperature, humidity).
• Allow equipment to warm up and stabilize before calibration.
• Maintain cleanliness of the equipment and surrounding area.
• Check that the incubator is level and stable.
• Verify power supply is stable and within specifications.

7. Standards & Tools

• Reference standards required: [TBD]
• Traceability statement: ISO17025
• Certificate validity check: [TBD]
• Standard ID placeholders: [TBD]

8. Calibration Strategy

The calibration will follow the As Found and As Left logic:

• Minimum number of points: At least 5 points including endpoints (20°C and 60°C) and midpoints (30°C, 35°C).
• Replicate readings at each point: 3 repeats as a best practice.

9. Step-by-Step Procedure

1. Preparation: Gather all necessary tools and standards.
2. Stabilization: Allow the incubator to reach a stable temperature.
3. As Found checks and data capture: Measure temperature at defined points and record data.
4. Adjustment rules: If OOT is found, follow adjustment procedures if permitted; otherwise, escalate to QA.
5. As Left verification: Confirm that adjustments bring the equipment within acceptance criteria.
6. Labeling + documentation completion: Label the equipment and complete all required documentation.

Record raw observations contemporaneously to ensure data integrity (ALCOA+).

10. Acceptance Criteria & Calculations

Acceptance criteria: ±0.5°C

Error calculation formula: Error = Observed Value – True Value

Pass/Fail logic: If the absolute value of the error is within acceptance criteria, mark as Pass; otherwise, mark as Fail.

Rounding rule placeholder: [TBD]

11. Handling OOT / Failures

• Immediate containment: Tag equipment and stop use.
• Notification & deviation initiation: Notify QA and document deviation.
• Impact assessment trigger: Define impact window and review of affected results/batches.
• Recalibration after repair/adjustment: Schedule recalibration as necessary.
• QA disposition placeholders: [TBD]

12. Records & Retention

• Logbook entries: Document all calibration activities.
• Calibration report/certificate filing: Maintain records as per company policy.
• e-Records if applicable: [TBD]
• Label content requirements: Calibrated date, due date, by whom, status.

13. Annexures

Annexure A: Calibration Data Sheet

Test Points	Reference	Observed	Error	Acceptance	Pass/Fail	As Found	As Left
[TBD]	[TBD]	[TBD]	[TBD]	[TBD]	[TBD]	[TBD]	[TBD]

Annexure B: Quick Checklist

• Environmental controls verified
• Equipment warm-up completed
• Cleanliness checked
• Leveling confirmed
• Power supply stable

Annexure C: Example Label Text

Calibration Date: [TBD]

Due Date: [TBD]

Calibrated By: [TBD]

Status: [TBD]

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Calibration Protocol

Calibration Protocol

Protocol ID	Asset ID	Equipment Name	Equipment Type	Dept	Area	Process Use	Parameter	Units	Range	Acceptance Criteria	Frequency	Calibration Type	Traceability
[TBD]	CAL-0155	Incubator Temp Sensor (30-35°C)	Incubator	Microbiology	Incubation	Microbial growth	Temperature	°C	20 – 60	±0.5°C	180 days	External	ISO17025

Environmental Conditions

Temperature: [TBD] °C

Relative Humidity: [TBD] %

Vibration: [TBD]

Drafts: [TBD]

Test Point Selection

Test points will be selected based on the specified range of 20°C to 60°C:

• Min: 20°C
• 25%: 25°C
• 50%: 30°C
• 75%: 35°C
• Max: 60°C

Results Table

Test Point	Ref Value	Observed (As Found)	Error	Limit	Pass/Fail	Observed (As Left)	Error	Pass/Fail
20°C	[TBD]	[TBD]	[TBD]	±0.5°C	[TBD]	[TBD]	[TBD]	[TBD]
25°C	[TBD]	[TBD]	[TBD]	±0.5°C	[TBD]	[TBD]	[TBD]	[TBD]
30°C	[TBD]	[TBD]	[TBD]	±0.5°C	[TBD]	[TBD]	[TBD]	[TBD]
35°C	[TBD]	[TBD]	[TBD]	±0.5°C	[TBD]	[TBD]	[TBD]	[TBD]
60°C	[TBD]	[TBD]	[TBD]	±0.5°C	[TBD]	[TBD]	[TBD]	[TBD]

Stepwise Instructions

1. Preparation: Ensure the incubator is clean and operational. Verify that the temperature sensor is calibrated and functioning.
2. Stabilization: Allow the incubator to stabilize at the target temperature range for at least 1 hour prior to taking measurements.
3. Performing Readings: Take three replicate readings at each test point. Record the observed values.
4. Calculating Error: Calculate the error for each observed value by subtracting the reference value from the observed value.
5. Evaluation: Compare the calculated errors against the acceptance criteria of ±0.5°C.
6. Documentation: Complete the results table with all observed values, errors, and pass/fail status.

Deviation Instruction for OOT

If any observed value falls outside the acceptance criteria:

• Stop use of the incubator.
• Notify the supervisor immediately.
• Open a deviation report.
• Quarantine the impacted results window: [TBD].
• Await QA decision on further actions.

Approvals

Prepared By	Reviewed By	Approved By
[Signature/Date]	[Signature/Date]	[Signature/Date]

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Calibration Checklist

Asset ID	Equipment	Dept	Area	Parameter	Range	Acceptance	Frequency	Traceability
CAL-0155	Incubator Temp Sensor (30-35°C)	Microbiology	Incubation	Temperature	20 – 60 °C	±0.5°C	180 days	ISO17025

1) Pre-calibration

• [ ] Verify environmental conditions are within specified limits
• [ ] Ensure incubator has been warmed up for the required duration
• [ ] Clean the incubator as per SOP
• [ ] Level the incubator if necessary
• [ ] Confirm reference standards are valid and calibrated
• [ ] Ensure calibration logbook is ready for entries

2) As Found Execution

• [ ] Set temperature setpoints as per SOP
• [ ] Perform multiple repeats for accuracy
• [ ] Record raw data accurately
• [ ] Perform necessary calculations for results

3) OOT Immediate Actions

• [ ] Tag out the equipment
• [ ] Stop use of the incubator
• [ ] Notify the QA department
• [ ] Document deviation in the logbook
• [ ] Trigger impact review as per SOP

4) As Left Verification

• [ ] Conduct post-adjustment checks
• [ ] Confirm all readings are within acceptance limits

5) Documentation & Closure

• [ ] Update equipment label with new calibration date
• [ ] Attach calibration certificate to logbook
• [ ] Obtain reviewer sign-off
• [ ] Update next due date in the logbook

Data Integrity (ALCOA+): Ensure all data recorded is Attributable, Legible, Contemporaneous, Original, Accurate, and Complete.

Out of Tolerance (OOT) Handling: Follow established procedures for addressing any OOT conditions identified during calibration.

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Deviation Impact Assessment

Event Summary
Asset: Incubator Temp Sensor (30-35°C) Date: [TBD] Discovered By: [TBD] Document References: [TBD] As Found Results Summary: [TBD]

Immediate Containment Checklist

• Stop use of the asset
• Label/tag the asset as out of tolerance
• Segregate impacted work

Define Impact Window

Last known in-tolerance date: [TBD] to discovery date: [TBD]

Product/Batch/Test Impact Review

Batch/Study/Report ID	Results Potentially Impacted	Re-test/Re-weigh Decision
[TBD]	[TBD]	[TBD]

Data Integrity Review Prompts (ALCOA+)

• Attributable: [TBD]
• Legible: [TBD]
• Contemporaneous: [TBD]
• Original: [TBD]
• Accurate: [TBD]
• Complete: [TBD]
• Consistent: [TBD]
• Enduring: [TBD]
• Available: [TBD]

Risk Assessment

Severity	Probability	Detectability	Rationale	Overall Risk
[TBD]	[TBD]	[TBD]	[TBD]	[TBD]

Investigation Summary

Root Cause: [TBD]

CAPA Plan

Action	Owner	Due Date	Effectiveness Check
[TBD]	[TBD]	[TBD]	[TBD]

QA Disposition

Release/Hold/Retest/Recall Triggers: [TBD]

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Calibration Certificate

Certificate No: [TBD]

Date: [TBD]

Next Due Date: [TBD]

Asset Details

Asset ID	Equipment Name	Equipment Type	Dept	Area	Make/Model	Serial No	Location	Parameter/Range/Units	Acceptance Criteria
CAL-0155	Incubator Temp Sensor (30-35°C)	Incubator	Microbiology	Incubation	[TBD]	[TBD]	[TBD]	Temperature (30-35°C) / °C	±0.5°C

Conditions

Environment: [TBD]

Reference Standards

Standard Name/ID	Certificate No	Due Date	Traceability Statement
[TBD]	[TBD]	[TBD]	Traceability to ISO17025

Results

As Found Results

Test Point	Measured Value (°C)	Pass/Fail
1	[TBD]	[TBD]
2	[TBD]	[TBD]
3	[TBD]	[TBD]
4	[TBD]	[TBD]
5	[TBD]	[TBD]

As Left Results

Test Point	Measured Value (°C)	Pass/Fail
1	[TBD]	[TBD]
2	[TBD]	[TBD]
3	[TBD]	[TBD]
4	[TBD]	[TBD]
5	[TBD]	[TBD]

Measurement Uncertainty Statement: [TBD]

Statement of Conformity: [Pass/Fail overall]

Remarks: [TBD]

Signatures

Performed by: ______________________ Date: ___________

Checked by: ______________________ Date: ___________

Approved by: ______________________ Date: ___________

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