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AUDIT SERVICESEarthing Health Assessment
Instrumentation Earthing System
Lightning Protection Audit
Power Quality Studies
Electrical & Fire Safety
CONSULTING SERVICESOUR BUSINESSAUDIT SERVICESCONSULTING SERVICESJEF has conducted Instrumentation Earthing Audits across more than 120 control rooms and instrumentation panel rooms, auditing over 9,500 panels, 32,000+ junction boxes, and 2,00,000+ field instruments and field assets.
Process plants and industrial facilities invest significantly in their instrumentation and control infrastructure — DCS systems, PLCs, 4–20 mA signal loops, Foundation Field Bus, HART protocols, transmitters, junction boxes, and field instruments. These systems are carefully designed, commissioned, and regularly maintained. Yet across industries and geographies, the familiar pattern of problems recurs: unexplained trips, nuisance alarms, signal drifts, communication failures, and intermittent malfunctions that are not only difficult to diagnose but more challenging to eliminate.
The following 12 factors are identified as capable of interrupting the operation of instrumentation systems
By identifying and eliminating ground loops, circulating currents, and shield termination errors that corrupt 4–20 mA and digital signals.
By addressing the root causes that standard electrical testing does not detect.
By eliminating the intermittent, hard-to-diagnose failure modes that occur when earthing problems are left uncorrected.
By identifying isolated grounding elements and earth bar mix-ups that represent genuine safety hazards under fault conditions.
By restoring signal integrity and eliminating the operational disruptions caused by instrumentation system noise.
Audit reports referenced to IEEE 1050-2004, IEEE 1100-2005, IEC 61000-5-2 and related standards, supporting regulatory, insurance, and operator requirements.
By identifying and eliminating ground loops, circulating currents, and shield termination errors that corrupt 4–20 mA and digital signals.
By addressing the root causes that standard electrical testing does not detect.
By eliminating the intermittent, hard-to-diagnose failure modes that occur when earthing problems are left uncorrected.
By identifying isolated grounding elements and earth bar mix-ups that represent genuine safety hazards under fault conditions.
By restoring signal integrity and eliminating the operational disruptions caused by instrumentation system noise.
Audit reports referenced to IEEE 1050-2004, IEEE 1100-2005, IEC 61000-5-2 and related standards, supporting regulatory, insurance, and operator requirements.
Detailed engineering report with all measurement results, test locations, and test conditions
Site photographs documenting the installation condition and all visible deficiencies identified
List of all identified anomalies and defects, with specific locations and BOM required for correction
Detailed report and site photographs post re-audit.
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