Zone 1 and 2, Zone 21 and 22!
Tower in flame-proof enclosure.
For hazardous locations due to gases and/or dusts.
The Werma 740 Series has all the advantages of a stack light and are now available for hazardous locations. Attention-getting visual features can be safely signaled in areas susceptible to the collection of hazardous gases and dusts. Visual communication and text messaging a machines status is clearly provided via leading technology.
Typical applications include Machines and equipment in hazardous areas due to the presence of gas or dust: petroleum refineries, chemical plants, waste water treatment plants, pharmaceutical manufacturing areas, grain silos, paint spray booths, etc.
WERMA signal horns, electronic buzzers, flashing beacons, double flash beacons, signal towers and horns, and rotating beacons all in explosion proof housings. With the optical portion, the relative importance of the action to be taken can be indicated by color as well as by the light effect and length of the signal being used.
The customer can choose from a whole spectrum of signals ranging from the permanent light to the more intensive blinking light through the rotating indicator or the attention-getting flashing light. While the audible portion is where caution, prudence and clarity are essential, these signals are used to indicate emergencies and demand direct action. They are understood throughout the world regardless of culture or written language. Signaling with audible devices works via one or more tones or tone sequences.
•Customize exact solution for exact application
•Low maintenance due to LED design
•Machine vibrations will not shorten bulb life
•No need to remove equipment indication to safe areas. 740 series allows signals to remain on the equipment.
Division 2 or Zone 2 area
This is a step up from the safe area. In this zone the gas, vapor or mist would only be present under abnormal conditions (most often leaks under abnormal conditions). As a general guide, unwanted substances should only be present under 10 hours/year or 0–0.1% of the time. Division 1 or Zone 1 area. Gas, vapor or mist will be present or expected to be present for long periods of time under normal running. As a guide this can be defined as 10–1000 hours/year or 0.1–10% of the time
A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is likely to occur in normal operation occasionally.
A place in which an explosive atmosphere in the form of a cloud of combustible dust is not likely to occur in normal operation, but if it does occur will persist for a short period only.
Marshall Wolf Automation is your Industrial Automation Distributor for Werma Stack Lights, Please contact us today for more information at 847-658-8130 or at www.wolfautomation.com.