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Oxygen (O₂)
Detection principle: Galvanic isolation type
Measuring range: 0.0–25.0 VOL%
Detection range (service range): 25.1–50.0%
Indication accuracy: Within ±0.7 VOL% (JIS T 8201 compliant)
Display unit: 0.1%
Alarm setpoint:
First alarm: 18.1–20.8%
Second alarm: 18.0%
Combustible Gas (CH₄)
Detection principle: Catalytic combustion type
Measuring range: 0–100% LEL
Detection range (service range): None
Indication accuracy: Within ±5% LEL
Display unit: 1% LEL
Alarm setpoint:
First alarm: 1–29% LEL
Second alarm: 30% LEL
Carbon Monoxide (CO)
Detection principle: Fixed-potential electrolysis type
Measuring range: 0–150 ppm
Detection range (service range): 151–300 ppm
Indication accuracy: Within ±10 ppm
Display unit: 1 ppm
Alarm setpoint:
First alarm: 1–49 ppm
Second alarm: 50 ppm
Hydrogen Sulfide (H₂S)
Detection principle: Fixed-potential electrolysis type
Measuring range: 0.0–30.0 ppm
Detection range (service range): 30.1–150 ppm
Indication accuracy: Within ±1.5 ppm (JIS T 8205 compliant)
Display unit: 0.1 ppm
Alarm setpoint:
First alarm: 1–9.9 ppm
Second alarm: 10.0 ppm
Power:
AA alkaline batteries (2 pcs)
AC 100±15V (50/60Hz)
*Rechargeable AA NiMH batteries (2 pcs) can also be used
Battery Life: Approx. 15 hours continuously (alkaline battery / 20°C without lighting)
Size: 357 × 197 × 210 mm
Mass: Approx. 5.1 kg (including batteries)
Optional Products: Data management software, gas inlet pipe (20 m, 30 m)
