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Explosion Proof Differential Pressure Switch
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930.8x Ex is explosion proof differential pressure switch for hazardous area or flammeproof classifed area installation. These DP switch can be used for monitoring over-pressure, vacuum and differential pressure of air or other non-combustible, non-aggressive gases. where x is: 1>0 = 20-300 Pa with switch differential of 10Pa (0.2 to 3 mbar) 2>3 = 50-500 Pa with switch differential of 20Pa (0.5 to 5 mbar) 3>5 = 200 � 1000 Pa with switch differential of 100Pa (2 to 10 mbar) Differential pressure Switch 930 Ex comes with adjustable knob which can be rotated, thus it can set at required threshhold differential pressure to switch changeover contacts, for pressure control & automation. Key Features: 1.Explosion proof Zones 1 and 2 with ATEX certification 2..Adjustable knob to set switch at any desired switching pressure 3.Transparent enclosure for ease to monitor switch point 4.Squeezing cable gland to dust and moisture protection 5.Robust performance over the life 6.Easy installation 7.IP54 protected 8.Maximum operating pressure: 10 kPa 9.Operating temperature: -20 deg cel to + 80 deg cel 10.Silicone diaphragm, tempered at 200 deg cel 11.Switch rating: max. 1.0A 250 VAC 12.Certification: Low Voltage Directive 200695EC; RoHS Directive 201165EC Some suggested fields of application include: 1.Monitoring air filters and ventilators 2.Monitoring industrial cooling-air circuits 3.Overheating protection for fan heaters 4.Monitoring flows in ventilation ducts 5.Controlling air and fire-protection flaps 6.Frost protection for heat exchangers 7.Air flow switch
