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Stay updated with the latest technical guides, product announcements, and industry insights from EK Instruments.
BESS FAT vs SAT: Test Scope, Records and Acceptance
Define what a battery storage factory test proves and what must still be demonstrated on site. Build an acceptance matrix with test boundaries, responsibilities and evidence.
Read ArticleUnstable Micro-Ohm Readings: How to Find the Measurement Error
When low-resistance results change between tests, check the measurement boundary, Kelvin contacts, current, temperature, offsets and parallel paths in a controlled sequence.
Read ArticleClamp Ground Tester Reading Too Low? Check the Return Path
A very low clamp earth reading may describe a metallic loop rather than the electrode you intended to test. Trace the return path and choose the right interpretation.
Read ArticleHow to Read a Multimeter Calibration Certificate: As-Found vs As-Left
Read a multimeter calibration report beyond its pass label. Understand as-found and as-left data, measurement uncertainty, scope and out-of-tolerance follow-up.
Read ArticlePower Quality Analyzer Not Recording Events? Check These Settings
An empty event list does not explain a machine trip. Check the measurement point, nominal voltage, trigger limits, recording mode and timestamps before repeating the survey.
Read ArticleHigh Neutral Current in a Three-Phase System: Imbalance or Harmonics?
Balanced phase amperes can hide a heavily loaded neutral. Learn how to separate fundamental imbalance from triplen harmonics and plan a useful four-channel survey.
Read ArticlePower Quality Analyzer Shows Negative kW? Check CT Polarity and Phase Mapping
A field troubleshooting guide for negative kW readings: verify expected power direction, wiring mode, voltage-current phase pairing and current-sensor polarity.
Read ArticleBESS Commissioning Test Equipment Checklist: Instruments, Records & Hold Points
A practical BESS commissioning equipment and evidence checklist covering insulation, low resistance, grounding, leakage, power quality, controls, hold points, performance testing and handover.
Read ArticleRCD Keeps Tripping? A Circuit-by-Circuit Leakage Troubleshooting Workflow
A field-oriented workflow for finding intermittent RCD and RCBO trips with a leakage current clamp, including conductor grouping, filters, logging, branch isolation and neutral-to-earth fault checks.
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