Ключевые слова:
Gas detectors|Methane|Gas analyzers|Portable|Alarm systems|Electrical equipment|Detectors|Transportable|Orientation|Measurement characteristics|Performance|Dust|Ratios|Fixed|Voltage fluctuations|Flammable atmospheres|Gases|Volume measurement|Mining equipment|Electric power systems|Pressure|Temperature|Strength of materials|Battery-powered devices|Response time|Calibration|Explosive atmospheres|Humidity|Fire-damp