Explosion Proof Cameras

What is Explosion Proof (EX)?

Electric Powered Industrial Equipment, used in areas containing explosive or flammable materials, must be designed to prevent any operation of the equipment from igniting the atmosphere. The design and construction of EX Equipment permit their classification as Explosion Proof (EX) and enable their use in explosive and hazardous atmospheres.

EXPLOSION PROOF ENCLOSERES

An EX Enclosure is a case or housing that has been tested and approved to contain electrical components. The strength of the enclosures must contain any internal explosion. The enclosures have been hydrostatically tested for internal explosive resistance to pressures in excess of UL requirements without failure. Explosion Proof Enclosures protect all cabling, wiring, and electrical components.

What is ATEX Explosion Proof (ATEX EX)?

ATEX EX (also referred to as Flameproof) is European Explosion Proof equipment certified to ATEX standards. Equipment and protective systems intended for use in potentially explosive atmospheres must enclose all ignition sources. ATEX EX is equipment that complies with ATEX (94/9/EC Directive) (Definition in the following slide). Approved by Internationally Recognized Testing Laboratories, ATEX EX Equipment can be used in designated explosive and hazardous atmospheres.

• What is the actual differences in Stainless Steel between the 316L or 304 housing?

• What are advantages of each housing type? The main difference is on the percentage of nickel (Ni), the Ni in 316L is much more than in the 304, so the 316L is much better suitable for corrosion proof capability.

All products are for Class 1, Division 1.

Class 1 : means the explosive gas areaDivision 1 : means the explosive gas always exist.

316L Stainless Steel is with Mo (molybdenum) inside and can withstand the corrosion better than 304ss. Example: For marine use, the 316L is recommended. 316L delivery time is rather longer than 304ss.

Abbreviation Example:

The ATEX certificate for SVEX-Q18 is II 2G EExd tD II B +H2 T6

II 2G: Equipment group II (Equipment intended for use in areas other than mines (above ground). In Places which explosive atmospheres caused by gas, vapors and liquid) zone 1 (gas), equal US standard Class 1, Division 1.

EEx: EX mark

d: Flame proof structuretD:Dust Explosion Proof

II: Equipment group II (Equipment intended for use in other areas than mines (above ground) in areas which have explosive atmospheres, which is caused by gases, vapors and liquids)

B+H2: gas group B plus hydrogen.

T6: Max surface temperature 85 degree.

• Group I – Electrical apparatus for mines susceptible to firedamp (for use underground)

• Group II – Electrical apparatus for places with a potentially explosive atmosphere, other than mines susceptible to firedamp

General information

According to 94/9/EC, a device that is to be used in an environment at risk of explosion may only be brought into the market if it satisfies the standards specified in the norm.Compared with the previous directives, it must be noted that the specification refers not only to electrical but also to mechanical equipment Ex: PTZs.Devices are divided into categories and groups to accurately define the conditions of use. This definition is marked on the device and may appear as follows:

II 2G EEx IIC T6

Device group

Category

Example:

Identifier Explosiongroup

Temperatureclass

Device group

II , There are 2 groups of devices.Devices of Group I, Category M are for use in underground mines and their above ground equipment, which are at risk from firedamp and/or inflammable dusts. (This is not given further coverage in this document).All other areas at risk of explosion are combined in Device Group II.

Identifier

EEx defines that this is an electrical device.d: Flame proof structuretD: Dust Explosion Proof

Category

The categories define which zones the devices may be used in. The classification states how frequently and in what concentration the ignitable mixture occurs. Furthermore, differentiation is made as to whether the hazard is due to gases, vapors and mists or due to dust.

Category 1

For devices, which guarantee a very high level of safety.Intended for the case where an atmosphere at risk of explosion is to be expected frequently or continuously.Devices in this category can also be used in Category 2 and 3.

Inflammable gases, vapors or mistsZone 0 equivalent to Category 1GArea in which an atmosphere at risk of explosion as a mixture of air and inflammable gases, vapors or mists is continuously or frequently present or present for long periods.

Inflammable dustsZone 20 equivalent to Category 1DArea in which an atmosphere at risk of explosion in the form of a cloud of inflammable dust contained in the air is continuously or frequently present or present for long periods.

Category 2

For devices, which guarantee a high level of safety.Intended for the case where an atmosphere at risk of explosion is to be expected.Devices in this category can also be used in Category 3.

Inflammable gases, vapors or mistsZone 1 equivalent to Category 2GArea in which an atmosphere at risk of explosion as a mixture of air and inflammable gases, vapors or mists can form occasionally during normal operation.

Inflammable dustsZone 21 equivalent to Category 2DArea in which an atmosphere at risk of explosion in the form of a cloud of inflammable dust contained in the air can form occasionally during normal operation.

Category 3

For devices, which guarantee a normal level of safety.Intended for the case where an atmosphere at risk of explosion is to be expected rather infrequently and, if so, for only short periods.

Inflammable gases, vapors or mistsZone 2 equivalent to Category 3GArea in which an atmosphere at risk of explosion as a mixture of air and inflammable gases, vapors or mists does not normally occur at all or only for shortperiods during normal operation.

Inflammable dustsZone 22 equivalent to Category 3DArea in which an atmosphere at risk of explosion in the form of a cloud of inflammable dust contained in the air does not normally occur at all or only forshort periods during normal operation.

Explosion group

Device group II is sub-divided into Explosion Groups A, B or C.This classification is dependent on the typical material properties of the gases and vapors that occur.The hazard level of materials increases from Explosion Group IIA to IIC. The requirements for the devices increase accordingly. If a device is approved for IIC, it can be used for all other explosion groups. Alternatively, the chemical formula or the name of the material can be stated here.

Temperature class

It must be ensured that the ignition temperature of an inflammable material is not reached during operation. Forthis purpose, the maximum surface temperature of a device must be less than the minimum ignition temperature.For this reason, the maximum surface temperature of equipment for use with inflammable gases, vapors or mists is specified in temperature classes. For dusty environments, the maximum surface temperature is specified in °C.

Temperature class Maximum permissible surface temperature of the equipment (°C)

T1 450

T2 300

T3 200

T4 135

T5 100

T6 85

Explosion Proof Zone Summary

Explosion Proof Explanation

I.E.C. N.E.C.

Gas

Zone 0 Class I, Division I

Zone 1 Class I, Division I

Zone 2 Class I, Division II

DustZone 10 Class II, Division IZone 11 Class II, Division II

I.E.C.: International Electrotechnical Commission N.E.C.: National Electrical Code, U.S.A.

Explosion Proof Explanation

Temperature in Celsius and Fahrenheit

Products Applications

• On-shore Applications1. Oil Refinery2. Gas Station3. Chemical Plant4. Coal Mining5. Military

• Off-shore Applications1. Drilling Platform2. Marine Vessels

Applications

Applications

Typical Analog System Connection

Typical Digital System Connection

Now several models of Veilux EX products are with ATEX certificate and a complete product line is formed.

ATEX certificate Products List:

1. SVEX-HIR7 EX PTZ Camera

2. SVEX-Q18 EX Dome Camera

3. SVEX-W1301 EX PTZ Camera

4. SVEX-W125 EX Pan Tilt with Camera Housing

5. SVEX-T100A EX Camera Housing

6. SVEX-2028E EX Control Box

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ATEX Products

ATEX Certificate: Nemko 08ATEX1100

ATEX Standard: EN 60079-0: 2006, EN 60079-1:

2004, EN61241-0: 2006； EN61241-1: 2004

EX Mark: II 2 GD Ex d IIC T6, Ta : -40 to ℃+60 ℃ Ex tD A21 T80℃

SVEX-HIR7SVEX-W1301EX PTZ CAMERA

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ATEX Products

Main Features:1. Integrated with pan/tilt, camera, camera

housing, telemetry board(receiver), sunshield, wiper, auto heating system etc.

2. IR illuminator or laser can be optional for different distance requirement on night vision conditions.

3. 128 presets, 360°continuous pan and +/-90°tilt rotation.

4. IP685. Variable rotation speed from 0~30°per

second. 6. -40 to +60 working temperature. ℃ ℃

Dimensions

SVEX-HIR7SVEX-1301EX PTZ CAMERA

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ATEX Products

ATEX Certificate: Nemko 11ATEX1022

ATEX Standard: EN 60079-0: 2009, EN 60079-1: 2007, EN60079-31: 2009

EX Mark: II 2 GD Ex d IIC T6 Gb, Ta : -15 to +60 ℃ ℃ Ex t IIIC

T80 Db℃

SVEX-Q18EX DOME CAMERA

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SVEX-Q18EX DOME CAMERA

Key Features:

1. Unique dome structure design, easy for maintenance.

2. On-screen-display function. 3. IP674. Available for both ceiling mounting

and stand mounting. 5. 128 presets, 360°continuous pan and

+90~-30°tilt rotation. 6. Support Pelco P/D protocols and

multiple baud rate. 7. 100~240VAC power supply. 8. IR illuminator can be optional.

Dimensions

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SVEX-W125EX PT & CAMERA HOUSING

ATEX Certificate: Nemko 05ATEX1190

ATEX Standard: EN 50014: 1997 + A1: 1999 +

A2:1999 and CENELEC EN 50018: 2000

EX Mark: II 2 G EEx d IIC T6, Ta : -25 to ℃+60 ℃

ATEX Products

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Key Features:

1. Integration with P/T and camera housing.

2. Flexible design for camera housing, available for both block camera as well as box camera and zoom lens.

3. Wiper, sunshield and auto heating optional.

4. 24VAC or 220VAC power supply. 5. 350°pan and +/-90°tilt rotation.

SVEX-125EX PT & CAMERA HOUSING

Yellow part means available room for inner camera.。

ATEX Products

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ATEX Products

SVEX-T100AEX CAMERA HOUSING

ATEX Certificate: Nemko 05ATEX1209

ATEX Standard: EN 50014: 1997 + A1: 1999 +

A2:1999 and CENELEC EN 50018: 2000

EX Mark: II 2 G EEx d IIC T6, Ta : -25 to ℃+60 ℃

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ATEX Products

Key Features:

1. Two versions design for camera housing, available for both block camera as well as box camera and zoom lens.

2. Sunshield and auto heating optional.

3. Electro-polish or corrosion proof painting finish.

4. Thermal camera version available.

SVEX-100AEX CAMERA HOUSING

Yellow part means available room for inner camera.

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ATEX Products

EX CONTROL BOX

ATEX Certificate: Nemko 08ATEX1089

ATEX Standard: EN 60079-0: 2006 EN 60079-1:

2004

EX Mark: II 2 G Ex d IIB+H2 T6

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ATEX Products

EX CONTROL BOX

Key Features:

1. Six cable entry for wiring. 2. Widely applications to install telemetry board, power supply, web

server, optic fiber T/R etc.. 3. Electro-polish or corrosion proof painting finish. 4. Inner size: 240(L) x 210(W) x 100(H) mm.

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EX MONITOR

15 or 17 inch monitor to work with the video display in EX site. BNC or VGA video signal can be optional for monitors .

ATEX Products

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Non ATEX Products

SVEX-300AEX CAMERA HOUSING

Key Features:

1. Two versions design for camera housing, available for both block camera as well as box camera and zoom lens.

2. Sunshield, wiper and auto heating available. 3. Electro-polish or corrosion proof painting

finish.

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Non ATEX Products

SVEX-HSFWATER COOLING HOUSING

Key Features:

1. SVEX-HSF is a Water Cooling Camera Housing that is designed for special environments, available for block camera as well as box camera.

2. This product can be used under dusty and high temperature conditions.

3. Environmental Temperature≤+250°C4. Water Pump is required but not included

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EX JUNCTION BOX

Junction Box to connect the pipes

Non ATEX Products

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EX Controller EX QUAD

1. Control 4 pan/tilts, camera and wiper system separately

2. Voltage control or RS485 control

3. Up/down/left/right, zoom, focus, iris and wiper functions can be used by buttons

1. 4-channel video signal input/1-channel video output

2. 1/2/3/4 channel video display

Non ATEX Products

REFERANCES