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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/mł
- 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/mł.