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Explosionproof housings

To be installed in zone where the forming of potentially, explosive athmosphere is possible due to the presence of group IIB-IIC gasses, fumes, smokes and powders even mixed among them. It can be installed in hazardous locations, indoor or outdoor, classified 1-21, 2-22 in which the environment temperature has to be included between -20°C and +50°C or between -50°C and +50°C. The anodic oxidation treatment assures an extremely high resistance against corrosion from atmospheres agents, salty fog or polluting elements of the air.

 

CHEP
Different versions available to satisfy the different specs required by different hazardous environment. Easy on-site installation. For digital and analog cameras and for video siignal on coax or on twisted pair cables. Constructed of extruded and anodized anticorodal aluminium for sites with potentially explosive atmosphere where electrical contructions of Group II category 2 are foreseen. On request, it can be constructed of bronze B14 or stainless steel and in this case it can be used on firedamping mines, where electrical contructions of Group I, category M2 are foreseen. Special version abvailable with germanium filter and protection grid for thermal cameras. On the back side two 1/2" or  3/4" cable glands allow to feed the devices inside the housing in high or low voltage. Onrequest , cable glands of different brands and different kind can be provided. Depending on the zone where the housing is to be installed, there will be used cable glands with seal rubber (suitable for zones with Group IIB gases) or barrier cable glands with connection cables sealed (suitable for zones with Group IIC gases). All this conforming to the present electrical plants regulations. Power supply adaptor in 3 working voltages: 230V/12dc 230V/24V, 115V/24V. Provided with a heating system with one or three PTC to avoid condensation on the glass. These are driven by a thermostat positioned on the circuit board which allows the electrical connection of all feeded elements with the main voltage. RoHS compliant.
Construction	anticorodal alumium
Cable glands	2 cable glands 1/4" or 3/4" on request available different brand and  model of cable glands
Protection index	IP66 and IP67 protection grade table
ATEX marking	II 2GD Ex d I/IIB/IIC T6 Ex tD A21 IP 66/67 T85°C I M2 Ex d I (model with Germanium filter excluded)
IECEX marking	Ex d IIC T6  or Ex d IIB T6 Ex tD A21 IP66 T85°C or Ex tD A21 IP67 T85°C Ex d I (model with Germanium filter excluded)
Rating plate marking	laser incision
Thermostat	Ton 15°C ± 5°C Toff 22°C ± 4°C
Heater	single with thermostat for temperature from -20°C to + 50°C (12-24Vac/Vdc o 100-240Vac)
	triple with thermostat for temperatures from -50°C to +50°C (12-24Vac/Vdc or 100-240Vac)
Camera power supply	Vin: 230V~50Hz, Vout: 12Vcc 400mA  Vin: 230V~50Hz, Vout: 24Vca 400mA
Power absorbed	total power absorbed by video surveillance equipment installed in the explosionproof camera housing must not exceed 20W if the housing includes any factory installed power supply unit inside, the  video surveillance equipment installed by user must not exceed 10W
Internal useful volume (W x H x L)	standard housing with heater: 110 x 84 x 220 mm long housing with heater: 110 x 84 x 270mm standard housing with triple heater: 110 x 84 x 200mm log housing with triple heater: 110 x 84 x 250mm
External dimensions	without sunshield: 190mm (dia) x 380mm  or 190mm (dia) x 430mm
	with sunshield: 208mm (dia) x 450mm  or 208mm (dia) x 500mm
Housing weight	11.00 Kg
Bracket weight	2.90 Kg
Dimensional drawing
Accessories	sunshield front glass protection grid bracket with swivel for wall or ceiling
Special versions	housing with gemanium filter housing for mines
Models
Code II 2GD Ex d IIB T6 EX tD A21 IP66 T85°C with cable glands for  gas group IIA (propane) and IIB (ethylene) II 2GD Ex d IIC T6 EX tD A21 IP66 T85°C with cable glands for  gas group IIC (acetylene, hydrogen) I M2 Ex d I for mines (grisou) only made of  AISI 316L stainless steel or B14 bronze Cable glands size 1/2" or  3/4" on demand temperature  -20°C/+50°C with single heater HT temperature  -50°C/+50°C with triple heater HTTT only IP rate germanium window grid CHEP IIB yes     yes yes   IP66/67     CHEP IIB G       yes yes   IP66/67 yes yes CHEP IIC   yes   yes yes   IP66/67     CHEP IIC G   yes   yes yes   IP66/67 yes yes CHEP IIB (-50°C) yes yes   yes   yes IP66/67 n.a. n.a. CHEP IIC (-50°C)   yes   yes   yes IP66/67 n.a. n.a. CHEP M     yes yes yes   IP66/67     CHEP M G     yes yes yes   IP66/67 yes yes CHEP M (-50°C)     yes yes   yes IP66/67 n.a. n.a.
Cable glands	Cable glands for Ex d IIB applications are equippped with seal rubber and are suitable for armoured and not armoured cables and for temperature range between -20° and 50°C In order to comply with the European regulation for the intrinsecally explosive environments, cable glands for Ex Id IIC must be of barrier type with connection cables sealed; the supplied ones are suitable for armoured and not armoured cables and for temperature range  between -20°and 50 °C
Accessories
BWX
Heavy duty bracket with joint. Made of AISI 316 thick gauge stainless steel. It can be completed with pole and corner mount adaptors.
Other accessories	Heater with termostat * Triple heater with termostat * Power supply * Camera adjusting height kit Stainless steel AISI 316L sunshield Frontal glass protection grid * (* = accessori available only factory installed)
Related products	Stainless steel corner adaptor Stailess steel ceiling adaptor

 

Reference technical notes
Protection index table

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Last modified 01-09-2010