4
、
INSTALLATION AND OPERATION
21
4.5 Alarm Signal cue
1
、
O
2
concentration is greater than 85%±2%. Green light
illuminates. Normal Operation.
2
、
O
2
concentration is greater than 73%± 2% and less than
85%±2%. Yellow light illuminate.
3
、
O
2
concentration is less than 73%±2%. Red light illuminate,
intermittent audible alarm sounds.
