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Hazardous Areas
Hazardous Areas – Where NOT to mount Site Controller or Expansion Module
DO NOT mount the Site Controller or any Fill-Rite FMS device within the hazardous / classified area: Class I Div 1 (Zone 1) or Class I Div 2 (Zone 2):
| Dispensing Device | Class 1 Div 1 | Class 1 Div 2 |
| Compressed Natural Gas (CNG) | Entire space within the dispenser enclosure. | 1.5 m (5 ft) in all directions from the dispenser enclosure. |
| Liquefied Natural Gas (LNG) | Entire space within the dispenser enclosure. | 3 m (10 ft) in all directions from the dispenser enclosure. |
| Liquefied Petroleum Gas (LP-Gas) | Entire space within the dispenser enclosure; 450 mm(18 in.) from the exterior surface of the dispenser enclosure to an elevation of 1.22 m (4 ft) above the base of the dispenser; the entire pit or open space beneath the dispenser and within 6 m (20 ft) horizontally from any edge of the dispenser when the pit or trench is not mechanically ventilated. | Up to 450 mm (18 in.) above ground and within 6 m (20 ft) horizontally from any edge of the dispenser enclosure, including pits or trenches within this area when provided with adequate mechanical ventilation |