Calibration Documents: Compound Gauge (-1 to 10 bar) (CAL-0074)

Asset ID	CAL-0074
Equipment	Compound Gauge (-1 to 10 bar)
Equipment Type	Compound Gauge
Department	Production
Area/Location	Utilities
Process Use	Pressure monitoring
Parameter	Pressure
Units	bar
Range Min	-1
Range Max	10
Acceptance Criteria	±1%
Calibration Frequency (days)	365
Calibration Type	External
Traceability	ISO17025

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Calibration SOP

1. Purpose

The calibration of the Compound Gauge (-1 to 10 bar) is performed to ensure accurate pressure monitoring within the production area. This calibration controls risks associated with inaccurate pressure readings, which can impact patient safety, batch quality, and overall data integrity.

2. Scope

• Asset ID: CAL-0074
• Equipment Name/Type: Compound Gauge (-1 to 10 bar)
• Department/Area: Production / Utilities
• Process Use: Pressure monitoring
• Parameter: Pressure
• Range: -1 to 10 bar
• Units: bar
• Calibration Frequency: 365 days

3. Definitions

• Calibration: The process of comparing a measurement instrument to a known standard to ensure accuracy.
• Verification: The process of confirming that a measurement instrument is functioning correctly.
• Adjustment: The act of modifying a measurement instrument to bring it into compliance with a standard.
• As Found: The condition of the instrument prior to any adjustments made during calibration.
• As Left: The condition of the instrument after adjustments and calibration have been completed.
• OOT (Out of Tolerance): A condition where the measurement results fall outside the specified acceptance criteria.
• Drift: The gradual change in the output of a measurement instrument 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 of a measurement lies.
• Intermediate Check: A verification process conducted between calibrations to ensure ongoing accuracy.

4. References

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

5. Responsibilities

• Technician/Metrology: Perform calibration and document results.
• QC/QA Reviewer: Review calibration documentation and results for compliance.
• Owner Department: Ensure the asset is available for calibration and maintain records.
• External Service Provider: Conduct external calibration as per the defined frequency.

6. Safety & Preconditions

• Ensure environmental controls are in place (temperature, humidity).
• Allow for warm-up/stabilization of the gauge as per manufacturer specifications.
• Maintain cleanliness of the equipment and surrounding area.
• Check leveling of the gauge before calibration.
• Verify power supply checks are completed before use.

7. Standards & Tools

• Reference Standards Required: [TBD]
• Traceability Statement: ISO17025
• Certificate Validity Check: Ensure calibration certificates are current and valid.
• Standard ID: [TBD]

8. Calibration Strategy

Calibration will follow the As Found and As Left logic:

• Minimum number of points: 5 points including endpoints and midpoints across the range of -1 to 10 bar.
• Replicate readings at each point: 3 repeats as a best practice.

9. Step-by-Step Procedure

1. Preparation: Gather all necessary tools and documentation.
2. Stabilization: Allow the gauge to stabilize as per manufacturer recommendations.
3. As Found checks and data capture: Record initial readings at defined points.
4. Adjustment rules: If OOT is found, follow adjustment procedures if allowed; otherwise, escalate the issue.
5. As Left verification: Confirm that the gauge is within tolerance after adjustments.
6. Labeling + documentation completion: Complete all required documentation and label the equipment accordingly.

Record raw observations contemporaneously to ensure ALCOA+ compliance.

10. Acceptance Criteria & Calculations

Acceptance criteria: ±1%

Error calculation formula: Error (%) = (Observed Value – True Value) / True Value × 100

Pass/Fail Logic: If the error falls within the acceptance criteria, the gauge passes; otherwise, it fails.

Rounding rule: [TBD]

11. Handling OOT / Failures

• Immediate containment: Tag equipment and stop use.
• Notification & deviation initiation: Notify relevant personnel of the OOT condition.
• Impact assessment trigger: Define impact window and review of affected results/batches.
• Recalibration after repair/adjustment: Ensure recalibration is performed post-adjustment.
• QA disposition: [TBD]

12. Records & Retention

• Logbook entries: Document all calibration activities.
• Calibration report/certificate filing: Maintain records of calibration certificates.
• e-Records if applicable: [TBD]
• Label content requirements: Include calibrated date, due date, technician name, and 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 clean and leveled
• Calibration tools available
• Documentation ready

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-0074	Compound Gauge (-1 to 10 bar)	Compound Gauge	Production	Utilities	Pressure monitoring	Pressure	bar	-1 to 10	±1%	365 days	External	ISO17025

Environmental Conditions

Temperature: [TBD]

Relative Humidity: [TBD]

Vibration: [TBD]

Drafts: [TBD]

Test Point Selection

Test points for calibration will be selected as follows:

• Minimum: -1 bar
• 25% of Range: 1.75 bar
• 50% of Range: 4.5 bar
• 75% of Range: 7.25 bar
• Maximum: 10 bar

Results Table

Test Point	Ref Value	Observed (As Found)	Error	Limit	Pass/Fail	Observed (As Left)	Error	Pass/Fail
-1 bar	[TBD]	[TBD]	[TBD]	±1%	[TBD]	[TBD]	[TBD]	[TBD]
1.75 bar	[TBD]	[TBD]	[TBD]	±1%	[TBD]	[TBD]	[TBD]	[TBD]
4.5 bar	[TBD]	[TBD]	[TBD]	±1%	[TBD]	[TBD]	[TBD]	[TBD]
7.25 bar	[TBD]	[TBD]	[TBD]	±1%	[TBD]	[TBD]	[TBD]	[TBD]
10 bar	[TBD]	[TBD]	[TBD]	±1%	[TBD]	[TBD]	[TBD]	[TBD]

Stepwise Instructions

1. Preparation: Ensure the compound gauge is clean and free from any obstructions. Verify that the calibration equipment is available and functioning.
2. Stabilization: Allow the compound gauge to stabilize at room temperature for at least [TBD] minutes before calibration.
3. Performing Readings: Take three replicate readings at each test point to ensure accuracy.
4. Calculating Error: Calculate the error for each observed value by comparing it to the reference value.
5. Evaluation: Determine if the observed values are within the acceptance criteria of ±1%.
6. Documentation: Record all observations, calculations, and results in the calibration log.

Deviation Instruction for OOT

If any observed value is out of tolerance (OOT):

• Stop use of the compound gauge immediately.
• Notify the supervisor and quality assurance (QA) team.
• 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-0074	Compound Gauge (-1 to 10 bar)	Production	Utilities	Pressure	-1 to 10 bar	±1%	365 days	ISO17025

Pre-calibration

• [ ] Verify environmental conditions are within specifications
• [ ] Ensure equipment has warmed up adequately
• [ ] Clean the equipment as per SOP
• [ ] Level the equipment if necessary
• [ ] Check validity of reference standards
• [ ] Ensure calibration logbook is ready for entries

As Found Execution

• [ ] Set the gauge to specified setpoints
• [ ] Perform repeat measurements
• [ ] Record all raw data accurately
• [ ] Perform necessary calculations for results

OOT Immediate Actions

• [ ] Tag out the equipment
• [ ] Stop use of the equipment immediately
• [ ] Notify the appropriate personnel
• [ ] Document the deviation
• [ ] Trigger impact review process

As Left Verification

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

Documentation & Closure

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

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Deviation Impact Assessment

Event Summary
Asset: Compound Gauge (-1 to 10 bar) Date: [TBD] Discovered By: [TBD] Document References: [TBD] As Found Results Summary: [TBD]

Immediate Containment Checklist

• Stop use of the equipment
• Label/tag the equipment 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-0074	Compound Gauge (-1 to 10 bar)	Compound Gauge	Production	Utilities	[TBD]	[TBD]	[TBD]	Pressure (-1 to 10 bar)	±1%

Conditions

Environment: [TBD]

Reference Standards

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

Results

As Found Results

Test Point	Measured Value (bar)	Deviation (bar)
-1	[TBD]	[TBD]
0	[TBD]	[TBD]
2	[TBD]	[TBD]
5	[TBD]	[TBD]
10	[TBD]	[TBD]

As Left Results

Test Point	Measured Value (bar)	Deviation (bar)
-1	[TBD]	[TBD]
0	[TBD]	[TBD]
2	[TBD]	[TBD]
5	[TBD]	[TBD]
10	[TBD]	[TBD]

Measurement Uncertainty Statement: [TBD]

Statement of Conformity: [Pass/Fail]

Remarks: [TBD]

Signatures

Performed by: ______________________ Date: __________

Checked by: ______________________ Date: __________

Approved by: ______________________ Date: __________

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