Loop Testing Technician – CIP/SIP and Process Zones

The Mid-Level Loop Testing Technician plays a critical role in the execution, documentation, and troubleshooting of instrument loop checks for CIP/SIP systems and core process zones. This includes verifying signal accuracy from field devices to control systems, ensuring compliance with qualification standards, and collaborating with QA and commissioning teams during equipment startup and validation.

Key Responsibilities:

• Perform end-to-end loop checks of field instruments (e.g., transmitters, flow meters, RTDs) with control systems (PLC/DCS/SCADA).

• Validate signal quality, range, response accuracy, and alarm logic for analog/digital inputs and outputs.

• Troubleshoot loop errors involving miswiring, signal loss, scaling issues, or mismatched tags.

• Support instrument qualification activities as part of IQ/OQ protocols for CIP/SIP skids, reactors, mixing tanks, and packaging systems.

• Coordinate with control system engineers to ensure correct mapping of I/O signals and update I/O lists.

• Maintain detailed documentation in alignment with GMP, GDP, and validation protocols.

• Update loop folders, redline P&IDs and loop drawings as required after testing.

• Follow cleanroom discipline, safety procedures, and electrical safety standards during field activities.

Key Focus Areas:

1. Advanced Loop Testing & Troubleshooting

   • Execute:

     • 4-20 mA and digital signal verification

     • Alarm testing, PID response validation

     • Open/short circuit checks, polarity verification

2. CIP/SIP Instrumentation Validation

   • Focus on instrumentation for:

     • Conductivity, temperature, pressure, flow in automated cleaning/sterilization systems

     • Accurate signal response during process simulation or mock cleaning runs

3. GMP & Documentation Compliance

   • Ensure:

     • Loop test records meet validation standards

     • Use of loop folders, test formats, and punch list logs compliant with QA expectations

4. Coordination & Project Execution

   • Collaborate with:

     • Automation teams (PLC/SCADA), QA validation engineers, and commissioning managers

     • Support handover documents, punch closure, and as-built updates

5. Tools & Systems Knowledge

   • Operate:

     • Loop calibrators, HART communicators, multifunction testers, multimeters

     • Experience using CMMS or project tracking tools (e.g., SAP, Maximo, Smartsheet)

Qualifications:

• Education:

  • Diploma / Degree in Instrumentation, Electronics, Electrical, or Mechatronics

• Experience:

  • 3–5 years hands-on experience in loop testing, instrumentation commissioning, or validation support

  • Experience in regulated process industries preferred

• Technical Proficiency:

  • Able to read and interpret:

    • Loop diagrams, wiring schedules, I/O lists, P&IDs, control narratives

  • Familiar with:

    • GMP practices, cleanroom behavior, basic IQ/OQ requirements

• Soft Skills:

  • Good communication, team collaboration, task ownership

  • Ability to handle field issues and escalate deviations appropriately