Gd40 on MH Limonhttps://mhlimon.com/tags/gd40/Recent content in Gd40 on MH LimonMH Limonhttps://mhlimon.com/images/og-image.pnghttps://mhlimon.com/images/og-image.pngHugoenSun, 27 Sep 2026 14:54:42 +0600Generator Hydrogen Purity Analyzer: Detector Failure, Calibration and Practical Lessonshttps://mhlimon.com/notes/field-notes/2026-06-17-h2-gas-purity/Sat, 27 Jun 2026 00:00:00 +0000https://mhlimon.com/notes/field-notes/2026-06-17-h2-gas-purity/Field notes on troubleshooting a Yokogawa GD402/GD40 hydrogen purity analyzer, including detector failure, calibration philosophy and practical engineering lessons.