Calibration Documents: Steam Temperature Sensor (CAL-0324)

Asset ID	CAL-0324
Equipment	Steam Temperature Sensor
Equipment Type	Temperature Sensor
Department	Utilities
Area/Location	Steam
Process Use	Temperature
Parameter	Temperature
Units	°C
Range Min	0
Range Max	200
Acceptance Criteria	±1°C
Calibration Frequency (days)	365
Calibration Type	External
Traceability	ISO17025

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Calibration SOP

1. Purpose

The calibration of the Steam Temperature Sensor is performed to ensure accurate temperature measurements within the steam utility process. This calibration controls risks related to accuracy, patient safety, batch quality, and data integrity, thereby maintaining compliance with GMP standards.

2. Scope

• Asset ID: CAL-0324
• Equipment Name/Type: Steam Temperature Sensor / Temperature Sensor
• Department/Area: Utilities / Steam
• Process Use: Temperature
• Parameter: Temperature
• Range: 0 – 200
• Units: °C
• Calibration Frequency: 365 days

3. Definitions

• Calibration: The process of comparing a measurement instrument against a known standard to determine its accuracy.
• Verification: The process of confirming that a measurement instrument meets specified requirements.
• Adjustment: The process of modifying a measurement instrument to bring it into compliance with specified standards.
• As Found: The condition of the instrument prior to any adjustments being made.
• As Left: The condition of the instrument after adjustments have been made.
• OOT (Out of Tolerance): A condition where the measurement falls outside the defined acceptance criteria.
• Drift: The gradual change in a measurement instrument’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 of a measurement lies.
• Intermediate Check: A periodic check to ensure the continued accuracy of a measurement instrument between calibrations.

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.
• Owner Department: Ensure equipment is available and accessible for calibration.
• External Service Provider: Conduct external calibration as required.

6. Safety & Preconditions

• Ensure environmental controls are in place (temperature, humidity).
• Allow for warm-up/stabilization of the equipment as per manufacturer specifications.
• Maintain cleanliness of the calibration area and equipment.
• Check leveling of the equipment prior to calibration.
• Verify power supply stability and functionality.

7. Standards & Tools

• Reference Standards: [TBD]
• Traceability Statement: ISO17025
• Certificate Validity Check: Ensure all reference standards are within their validity period.

8. Calibration Strategy

Calibration will follow the As Found and As Left logic:

• Minimum number of points: At least 5 points including endpoints (0°C and 200°C) and midpoints (100°C).
• Replicate readings: Perform 3 repeats at each point as a best practice.

9. Step-by-Step Procedure

1. Preparation: Gather all necessary tools and reference standards.
2. Stabilization: Allow the sensor to stabilize at the calibration environment.
3. As Found checks and data capture: Record initial readings at defined points.
4. Adjustment rules: If OOT is found, adjust the sensor as per manufacturer guidelines; if not allowed, escalate to QA.
5. As Left verification: Confirm readings post-adjustment to ensure compliance.
6. Labeling + documentation completion: Complete all necessary documentation and label the equipment with calibration details.

Record raw observations contemporaneously to ensure ALCOA+ compliance.

10. Acceptance Criteria & Calculations

Acceptance criteria: ±1°C

Error calculation formula: Error = Observed Value – True Value

Pass/Fail logic: If the absolute value of the error is within ±1°C, the calibration passes; otherwise, it fails.

Rounding rule: [TBD]

11. Handling OOT / Failures

• Immediate containment: Tag the equipment and stop use.
• Notification & deviation initiation: Notify QA and initiate a deviation report.
• Impact assessment trigger: Define the impact window and review 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 warm-up completed
• Calibration tools prepared
• 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-0324	Steam Temperature Sensor	Temperature Sensor	Utilities	Steam	Temperature	Temperature	°C	0 – 200	±1°C	365 days	External	ISO17025

Environmental Conditions

Temperature: [TBD]

Relative Humidity: [TBD]

Vibration: [TBD]

Drafts: [TBD]

Test Point Selection

• Minimum: 0°C
• 25% of Range: 50°C
• 50% of Range: 100°C
• 75% of Range: 150°C
• Maximum: 200°C

Results Table

Test Point	Ref Value	Observed (As Found)	Error	Limit	Pass/Fail	Observed (As Left)	Error	Pass/Fail
0°C	[TBD]	[TBD]	[TBD]	±1°C	[TBD]	[TBD]	[TBD]	[TBD]
50°C	[TBD]	[TBD]	[TBD]	±1°C	[TBD]	[TBD]	[TBD]	[TBD]
100°C	[TBD]	[TBD]	[TBD]	±1°C	[TBD]	[TBD]	[TBD]	[TBD]
150°C	[TBD]	[TBD]	[TBD]	±1°C	[TBD]	[TBD]	[TBD]	[TBD]
200°C	[TBD]	[TBD]	[TBD]	±1°C	[TBD]	[TBD]	[TBD]	[TBD]

Stepwise Instructions

1. Preparation: Ensure the calibration environment is stable and within specified conditions.
2. Stabilization: Allow the sensor to stabilize at each test point for a minimum of [TBD] minutes.
3. Performing Readings: Take three replicate readings at each test point and record the values.
4. Calculating Error: Calculate the error for each observed value using the formula: Error = Observed – Ref Value.
5. Evaluation: Compare the calculated error against the acceptance criteria of ±1°C.
6. Documentation: Complete the results table and ensure all data is recorded accurately.

Deviation Instruction for OOT

If any observed value is outside the acceptance criteria:

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

Approvals

Prepared	Reviewed	Approved
____________________	____________________	____________________
Date: ____________	Date: ____________	Date: ____________

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Calibration Checklist

Asset ID	Equipment	Dept	Area	Parameter	Range	Acceptance	Frequency	Traceability
CAL-0324	Steam Temperature Sensor	Utilities	Steam	Temperature	0 to 200 °C	±1°C	365 days	ISO17025

Pre-calibration

• [ ] Verify environmental conditions are within specified limits
• [ ] Ensure sensor has warmed up adequately
• [ ] Clean the sensor and surrounding area
• [ ] Level the sensor if applicable
• [ ] Check validity of reference standards
• [ ] Ensure calibration logbook is ready for entries

As Found Execution

• [ ] Set initial setpoints for calibration
• [ ] Perform repeat measurements as required
• [ ] Record raw data accurately
• [ ] Perform necessary calculations for results

OOT Immediate Actions

• [ ] Tag out the equipment if out of tolerance (OOT)
• [ ] Stop use of the equipment immediately
• [ ] Notify relevant personnel of the OOT condition
• [ ] Document deviation from acceptance criteria
• [ ] Trigger impact review process

As Left Verification

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

Documentation & Closure

• [ ] Update equipment label with calibration details
• [ ] Attach calibration certificate to logbook
• [ ] Obtain reviewer sign-off on calibration results
• [ ] Update next due date for calibration

Data Integrity (ALCOA+): Ensure all data recorded is attributable, legible, contemporaneous, original, and accurate.

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Deviation Impact Assessment

Event Summary
Asset: Steam Temperature Sensor 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-0324	Steam Temperature Sensor	Temperature Sensor	Utilities	Steam	[TBD]	[TBD]	[TBD]	Temperature (0 – 200) °C	±1°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)	Remarks
0	[TBD]	[TBD]
50	[TBD]	[TBD]
100	[TBD]	[TBD]
150	[TBD]	[TBD]
200	[TBD]	[TBD]

As Left Results

Test Point	Measured Value (°C)	Remarks
0	[TBD]	[TBD]
50	[TBD]	[TBD]
100	[TBD]	[TBD]
150	[TBD]	[TBD]
200	[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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