Class 2 division 1 exit signs are placed in facilties where combustible dust lingers in the air at such quantities they pose an explosive threat. Division 1 means that volatile dust is a normal part of day-to-day operations. Such locations can include grain elevators, sugar production and carbon processing plants.
Class 2 div 1 exit signs are built with thick die-cast aluminum housing, hermetically-sealed to prevent combustible dust from entering the internal circuitry. The 'exit' lettering is protected by a polycarbonate faceplate and the external fasteners are stainless steel. Unit is flame retardant and corrosion-resistant.
Class 2 div 1 exit signs are lit with energy efficient LEDs (Light Emitting Diodes) which only consume 5 watts of electricity and are available in red or green lettering options. An hermetically-sealed diagnostic switch is a quick way to check the readiness of the battery and LED strip.
Nickel Cadmium (NiCad) battery provides 90 minutes of illumination and has an expected lifespan of 5-7 years.
PARTS - Three-year warranty on parts
BATTERY - Five-year for nickel cadmium
Periodic maintenance needs to be performed once a month and once yearly. These tests will guarantee the battery and lamps will work as they should in a power failure or other emergency.
8-10 year expected lifespan. Replacement parts are available.
Self-Diagnostic - This option greatly reduces the need for manual maintenance. An LED display gives constant status reports on the unit which can be deciphered by an easy-to-use key.