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Safe LED

3.7 Safe LED

The instrument is equipped with a green "SAFE LED". This green SAFE LED flashes every 15 seconds under the following conditions:

  • the SAFE LED feature is enabled
  • instrument is in Measurement mode (Normal Operation)
  • combustible reading is 0% LEL or 0.00% CH4
  • Oxygen (O2) reading is 20.8%
  • Carbon Monoxide (CO) reading is 0 ppm or 0 mg/m3
  • Hydrogen Sulfide (H2S) reading is 0 ppm or 0 mg/m
  • no gas alarms are present (low or high)
  • instrument is not in Low Battery warning or alarm
  • CO, H2S, STEL and TWA readings are 0 ppm or 0 mg/m.