Multimeter (CAL-0270) – Calibration Documents

Calibration Documents: Multimeter (CAL-0270)

Asset ID CAL-0270
Equipment Multimeter
Equipment Type Multimeter
Department Engineering
Area/Location Maintenance
Process Use Electrical checks
Parameter Voltage
Units V
Range Min 0
Range Max 1000
Acceptance Criteria ±1%
Calibration Frequency (days) 365
Calibration Type External
Traceability ISO17025

Table of Contents

  1. Calibration SOP
  2. Calibration Protocol
  3. Calibration Checklist
  4. Deviation Impact Assessment
  5. Calibration Certificate

Calibration SOP

1. Purpose

The calibration of the Multimeter (CAL-0270) is performed to ensure accurate measurements of voltage within the specified range. This is critical for maintaining the integrity of electrical checks in the Engineering department, thereby controlling risks associated with inaccurate readings that could affect equipment performance, patient safety, and batch quality.

2. Scope

  • Asset ID: CAL-0270
  • Equipment Name/Type: Multimeter
  • Department/Area: Engineering / Maintenance
  • Process Use: Electrical checks
  • Parameter: Voltage
  • Range: 0 to 1000 V
  • Units: V
  • 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 meets specified requirements.
  • Adjustment: The process of modifying a measurement instrument to bring it into compliance with specifications.
  • As Found: The condition of the instrument prior to any adjustments made during calibration.
  • As Left: The condition of the instrument after adjustments have been made and verified.
  • OOT (Out of Tolerance): A condition where the measurement falls outside the specified acceptance criteria.
  • Drift: The gradual change in the output of a measurement instrument over time.
  • Traceability: The ability to trace the measurement results back to national or international standards.
  • Measurement Uncertainty: A parameter that characterizes the range of values within which the true value is expected to lie.
  • Intermediate Check: A periodic check performed 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 maintain records.
  • QC/QA Reviewer: Review calibration records and ensure compliance.
  • Owner Department: Ensure equipment is available and in good condition for calibration.
  • External Service Provider: Conduct external calibration as per the calibration type.

6. Safety & Preconditions

  • Ensure environmental controls are in place (temperature, humidity).
  • Allow for warm-up/stabilization of the Multimeter as per manufacturer specifications.
  • Maintain cleanliness of the equipment and surrounding area.
  • Ensure the Multimeter is level and properly positioned.
  • Check power supply for stability and reliability.
See also  Colony Counter (count verification) (CAL-0241) - Calibration Documents

7. Standards & Tools

  • Reference standards required: [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 V, 1000 V) and midpoints.
  • 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 Multimeter to warm up as per manufacturer guidelines.
  3. As Found checks and data capture: Measure voltage at specified points and record raw observations contemporaneously (ALCOA+).
  4. Adjustment rules: If OOT is found, follow adjustment procedures if allowed; otherwise, escalate the issue.
  5. As Left verification: Re-measure to confirm adjustments and ensure compliance with acceptance criteria.
  6. Labeling + documentation completion: Complete all necessary documentation and label the equipment with calibration details.

10. Acceptance Criteria & Calculations

Acceptance criteria: ±1%

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

Pass/Fail Logic: If error falls within ±1%, the calibration passes; otherwise, it fails.

Rounding rule: [TBD]

11. Handling OOT / Failures

  • Immediate containment: Tag equipment and stop use.
  • Notification & deviation initiation: Notify QA and document the deviation.
  • 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: Maintain detailed logbook of calibration activities.
  • Calibration report/certificate filing: Store all calibration certificates in a secure location.
  • 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

  • Check environmental controls
  • Verify equipment cleanliness
  • Ensure proper leveling
  • Confirm power supply stability

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-0270 Multimeter Multimeter Engineering Maintenance Electrical checks Voltage V 0 – 1000 ±1% 365 days External ISO17025
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Environmental Conditions

Temperature: [TBD]

Relative Humidity: [TBD]

Vibration: [TBD]

Drafts: [TBD]

Test Point Selection

  • Minimum: 0 V
  • 25% of Range: 250 V
  • 50% of Range: 500 V
  • 75% of Range: 750 V
  • Maximum: 1000 V

Results Table

Test Point Ref Value Observed (As Found) Error Limit Pass/Fail Observed (As Left) Error Pass/Fail
0 V [TBD] [TBD] [TBD] ±1% [TBD] [TBD] [TBD] [TBD]
250 V [TBD] [TBD] [TBD] ±1% [TBD] [TBD] [TBD] [TBD]
500 V [TBD] [TBD] [TBD] ±1% [TBD] [TBD] [TBD] [TBD]
750 V [TBD] [TBD] [TBD] ±1% [TBD] [TBD] [TBD] [TBD]
1000 V [TBD] [TBD] [TBD] ±1% [TBD] [TBD] [TBD] [TBD]

Stepwise Instructions

  1. Preparation: Ensure the multimeter is clean and in good working condition. Verify that the calibration equipment is within its calibration date.
  2. Stabilization: Allow the multimeter to stabilize for at least 30 minutes before taking measurements.
  3. Performing Readings: Take three replicate readings at each test point. Record all observed values.
  4. Calculating Error: Calculate the error for each observed value using the formula: Error = (Observed – Ref Value) / Ref Value * 100.
  5. Evaluation: Compare the calculated error against the acceptance criteria of ±1%.
  6. Documentation: Complete the results table with all observed values, errors, and pass/fail status.

Deviation Instruction for OOT

If any observed value is outside the acceptance criteria:

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

Approvals

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

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Calibration Checklist

Asset ID Equipment Dept Area Parameter Range Acceptance Frequency Traceability
CAL-0270 Multimeter Engineering Maintenance Voltage 0 – 1000 V ±1% 365 days ISO17025

Pre-calibration

  • [ ] Verify environmental conditions are within specified limits
  • [ ] Allow multimeter to warm up for the recommended time
  • [ ] Clean the equipment as per SOP
  • [ ] Ensure the multimeter is leveled
  • [ ] Check validity of reference standards
  • [ ] Confirm logbook is ready for documentation

As Found Execution

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

OOT Immediate Actions

  • [ ] Tag out the multimeter
  • [ ] Stop use of the equipment immediately
  • [ ] Notify relevant personnel of the OOT condition
  • [ ] Document deviation in the logbook
  • [ ] Trigger impact review as per protocol
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As Left Verification

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

Documentation & Closure

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

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

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Deviation Impact Assessment

Event Summary
Asset: Multimeter
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 service
  • 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-0270 Multimeter Multimeter Engineering Maintenance [TBD] [TBD] [TBD] Voltage: 0 – 1000 V ±1%

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 (V) Acceptance Criteria Pass/Fail
0 V [TBD] ±1% [TBD]
250 V [TBD] ±1% [TBD]
500 V [TBD] ±1% [TBD]
750 V [TBD] ±1% [TBD]
1000 V [TBD] ±1% [TBD]

As Left Results

Test Point Measured Value (V) Acceptance Criteria Pass/Fail
0 V [TBD] ±1% [TBD]
250 V [TBD] ±1% [TBD]
500 V [TBD] ±1% [TBD]
750 V [TBD] ±1% [TBD]
1000 V [TBD] ±1% [TBD]

Measurement Uncertainty Statement: [TBD]

Statement of Conformity: [TBD]

Remarks: [TBD]

Signatures

Performed by: ____________________ Date: ___________

Checked by: ____________________ Date: ___________

Approved by: ____________________ Date: ___________

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