Ventev Hazardous Installation instructions

Installation & Operating Manual
Hazardous Environment
Enclosure

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Contents
1Introduction .......................................................................................................... 5
2Safety Information & Notes................................................................................ 6
3Installation........................................................................................................... 10
3.1 Mounting .......................................................................................................................... 10
3.2 Opening & Closing the Enclosure ................................................................................. 11
3.2.1 Opening the Enclosure (Aluminum & Stainless-Steel Enclosures) .....................................................11
3.2.2 Closing the Enclosure........................................................................................................................11
3.3 Cable Entries.................................................................................................................... 13
3.3.1 Typical Cable Entries and Connections.............................................................................................. 13
3.4 Earthing ............................................................................................................................ 14
3.4.1 Location of Hazardous Environment Stainless-Steel Enclosure External Earth Bond Points ............ 14
3.4.2 Location of Hazardous Environment Aluminum Enclosure External Earth Bond Points .......................... 14
3.5 Electrical Installation ....................................................................................................... 15
3.6 Power Supply ................................................................................................................... 17
3.7 Fusing ................................................................................................................................ 19
3.7.1 Fuse Ratings ........................................................................................................................................ 19
3.7.2 Changing Fuse ................................................................................................................................... 19
3.8 External Overcurrent Protection.................................................................................. 19
3.9 Data Connections............................................................................................................ 20
3.9.1 Copper Ethernet ................................................................................................................................ 20
3.9.2 Power-Over-Ethernet (PoE) ............................................................................................................... 20
3.9.3 Optical Fiber....................................................................................................................................... 21
3.9.4 Console Port ...................................................................................................................................... 22

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3.10 Intrinsically Safe RF Outputs ....................................................................................... 22
3.10.1 Example of RF Threshold Power Calculation .................................................................................. 23
3.11 Antenna Requirements .................................................................................................. 23
3.12 Antenna Installation ...................................................................................................... 23
3.13 Prevention of Electrostatic Charging ......................................................................... 25
3.14 Additional Labels & Non-Metallic Materials ............................................................ 25
4Intended Purpose Usage.................................................................................... 26
4.1 Transportation and Storage ........................................................................................... 26
4.2 Authorized Persons......................................................................................................... 26
4.3 Cleaning and Maintenance............................................................................................ 26
4.4 Cleaning and Maintenance Intervals............................................................................ 27
4.5 Aggressive Substances and Environments.................................................................. 27
4.6 Exposure to External Stresses ...................................................................................... 27
5Technical Data ..................................................................................................... 28
6Coin Cell Information .......................................................................................... 30
7Label Drawing ...................................................................................................... 30
8Type Codes .......................................................................................................... 31
9EU Declaration of Conformity .......................................................................... 33

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The photograph above shows the Hazardous Environment Aluminum Enclosure version;
a Stainless-Steel version is also available.
For warranty information, refer to Terms and Conditions at ventevinfra.com.
Ventev reserves the right to change this
manual and its contents without notice,
the latest version applies.

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1 Introduction The Hazardous Environment Enclosure is an ATEX and IECEx
approved Zone 1 access point enclosure with intrinsically safe
RF outputs; it is designed to allow the deployment of wireless
networks in hazardous areas.
The concept allows installation of equipment from leading WLAN vendors such as Cisco,
Aruba, and Meraki. Each type of access point or RF transmitting device is rigorously
checked and tested by Ventev to ensure conformity to the latest standards. This
means that the user may select the vendor of their choice when extending a WLAN to
hazardous areas. However, equipment not previously approved will require assessment
to determine its suitability.
The intrinsically safe RF outputs of the Hazardous Environment Enclosure allows users
to choose any antenna for use with their wireless hardware e.g., Ventev’s range of
high quality rugged outdoor antennas. Up to eight antennas can be utilized, allowing
the MIMO functionality of the latest compatible Wi-Fi wireless access points to be
implemented, providing optimum coverage and maximum data throughput on chemical
plants, oil refineries, or oil & gas platforms. Optional features include surge arrestors for
lightning suppression in outdoor installations.

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2 Safety Information & Notes
2.1 Storage of This Manual
Keep this user manual safe and in the vicinity of the device. All persons required to
work on or with the device should be advised on where the manual is stored.
2.2 Special Conditions for Safe Use
2.2.1 ATEX/IECEx
1. Contact Ventev for information on the dimensions of the flameproof joints.
2. The RF output is only to be connected to an antenna suitable for the hazardous location; refer to associated
RF galvanic isolator iSOLATE501 equipment certificate (IECEx trc 15.0015X/TRAC15ATEX0050x) or iSOLATE500
equipment certificate (IECEx BAS 13.0064X/Baseefa13ATEX0112X), and associated instructions.
3. If the RF output connector is not intended to be connected to a cable and/or antenna, the output connector must
be capped.
4. Flamepath joints are not intended to be repaired.
5. Breather/drain valves may be fitted providing that they are suitably ATEX/IECEx Ex db equipment certified.
6. Cables connected to the optical input shall be installed according to IEC 60079-14 K.3 and be suitably
mechanically protected.
2.3 List of Notes
The notes supplied in this chapter provide information on the following:
Warning!
Possible hazard to life or health.
Caution
Possible damage to property.
Important
Possible damage to enclosure, device, or associated equipment.
Information
Notes on the optimum use of the device.

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Warning!
Installation of the Hazardous Environment Enclosure must be performed in accordance
with IEC 60079-14 and IEC 60079-25. Maintenance and inspection must be performed
in accordance with IEC 60079- 17.
Warning!
Installation of the Hazardous Environment Enclosure is only to be performed by skilled
electricians and instructed personnel in accordance with national legislation.
Warning!
The Hazardous Environment Enclosure contains INTRINSICALLY SAFE circuits.
Warning!
The Hazardous Environment Enclosure Intrinsically Safe RF output ports are located in
the positions shown in Section 3.3. Only antennas in accordance with Section 3.11 may
be connected to these ports. Refer to Section 3.12 for antenna installation requirements.
Warning!
The Hazardous Environment Enclosure MUST be earthed. Refer to Section [earthing] for details.
Warning!
The Hazardous Environment Enclosure must NOT be installed in hazardous areas
requiring Category 1, M1, or M2 equipment.
Warning!
Although antennas connected to the Intrinsically Safe RF outputs of the Hazardous
Environment Enclosure may be installed in hazardous areas requiring Category 1
equipment, the Hazardous Environment Enclosure flameproof must NOT be installed
in these environments.
Warning!
The Hazardous Environment flameproof enclosure must NOT be opened when an
explosive gas or dust atmosphere is present or when the equipment is energized.
Warning!
The Hazardous Environment flameproof enclosure lid must be secured only with the
bolts supplied and these must be tightened to the correct torque value. See Section
3.2.2 for details. Contact Ventev for spare bolts.

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Warning!
The Hazardous Environment flameproof enclosure must only be fitted with suitably
approved cable entry devices. See Section 3.3 for details.
Warning!
Do not exceed the RF Threshold Power for the equipment group in which the Hazardous
Environment Enclosure and its antennas are to be installed; it must be controlled in
accordance with IEC 60079- 0, and must not exceed the following levels:
IIC –2W (+33dBm) IIB –3.5W
(+35.4dBm) IIA –6W (+37.7dBm) III
–6W (+37.7dBm)
See Section 3.10.1 for an example of how to calculate the RF Threshold Power.
Warning!
The Hazardous Environment Enclosure must not be modified in any way.
Warning!
There are no user-serviceable parts below the top plate of the Hazardous Environment
Enclosure. See Section 3.5 for details. Always refer service enquiries to Ventev.
Warning!
Hazardous voltages are present within the Hazardous Environment Enclosure.
Warning!
Hot surfaces may be present within the Hazardous Environment Enclosure. Observe the
warning labels fitted.
Warning!
Optical radiation hazards may be present within the Hazardous Environment Enclosure.
Observe the warning labels fitted.
Warning!
The Hazardous Environment Enclosure may weigh up to 70Kg. Exercise care when
handling and mounting.

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Warning!
DO NOT lift the Hazardous Environment Enclosure using the threaded entries, N-type
RF connectors, or door bolts. Lift only using suitably approved slings, fitted by suitably
qualified personnel.
Warning!
When a device is fitted with a coin cell and the coin cell is required to be replaced, it
shall only be fitted with the exact same type of coin cell as marked on the device.
Warning!
The Hazardous Environment stainless steel enclosure weighs approximately 70Kg.
Exercise care when handling and use suitable mounting points and structures. Mount
the enclosure ONLY using the mounting points shown.
Important
Always re-apply a thin layer of Loctite 8104 or Loxeal GS9 silicone grease to the
enclosure flame paths whenever the Hazardous Environment flameproof enclosure is
opened. This is required to maintain the IP rating of the enclosure.
Important
Do not exceed the power supply parameters specified on the Hazardous Environment
Enclosure external rating plate.
Important
Ensure that NO TOOLS come into contact with the flamepath of the enclosure, as this
may cause irreparable damage and render the unit unsafe.
Important
Ensure that only the correct fiber transceiver format/power is connected to the
Hazardous Environment Enclosure. Damage to the Hazardous Environment Enclosure
fiber interface or customer equipment may occur if the wrong format/excessive optical
power is used.
Important
Only replace the fuse with the same value and type indicated on the internal fuse
identification label.

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3 Installation
3.1 Mounting
Mount the Hazardous Environment Enclosure to a suitable structure, using the mounting points shown.
FIGURE 1: Aluminum Enclosure Mounting Dimensions
FIGURE 2: Hazardous Environment Enclosure Stainless Steel Enclosure Mounting Points

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3.2 Opening & Closing the Enclosure
Warning!
The Hazardous Environment flameproof enclosure must NOT be opened when an
explosive gas or dust atmosphere is present, or when the equipment is energized.
Warning!
The Hazardous Environment flameproof enclosure lid must be secured only with the
bolts supplied and these must be tightened to the correct torque value. Contact Ventev
for spare bolts.
Important
Ensure that NO TOOLS come into contact with the flamepath of the enclosure, as this
may cause irreparable damage and render the unit unsafe.
Important
Always re-apply a thin layer of Loctite 8104 or Loxeal GS9 silicone grease to the
enclosure flame paths whenever the Hazardous Environment flameproof enclosure is
opened. This is required to maintain the IP rating of the enclosure.
3.2.1 Opening the Enclosure (Aluminum & Stainless-Steel Enclosures)
The flamepaths of the Hazardous Environment Enclosure are supplied with grease applied to protect them. This can
make the enclosure lid difficult to open as the grease can cause it to stick. Ventev recommend the use of a double
suction lifter. This tool is included with Hazardous Environment Enclosure deliveries and is available from hardware
and builders supply stores. Ventev recommend using a lifter that has a working load of 50kg minimum and approximate
dimensions 300mm x 120mm.
•Remove all bolts, using a wrench with an 8mm hex head. Store the bolts carefully to avoid damage or loss.
•Attach the suction lifter as per the instructions provided and release the door.
3.2.2 Closing the Enclosure
1. Check that the correct grease (Loctite 8104 or Loxeal GS9) has been applied to the flame-path, and that it is free
of damage.
2. Check all bolts are the correct type and free from damage.
3. Re-insert the bolts and hand-tighten only.
4. Using a torque wrench fitted with an 8mm hex head, tighten the bolts in opposite corners of the box, then work
around the box. Use the following maximum torque.

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ENCLOSURE MATERIAL MAXIMUM BOLT TORQUE
FIGURE 3: Opening Hazardous Environment Enclosure with Suction Lifter
Lid Bolt Torques TABLE 1: Enclosure Bolt Torques
Aluminum 20Nm
Stainless Steel 44Nm

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3.3 Cable Entries
Warning!
The Hazardous Environment flameproof enclosure must only be fitted with suitably
approved cable entry devices.
Warning!
The Hazardous Environment Enclosure protective plastic transport caps fitted to all
threaded cable entries MUST be replaced with suitably certified cable glands or stopping
plugs before installation in a hazardous area.
Warning!
Any iSOLATE-CT RF connector transits fitted to the Hazardous Environment Enclosure
must NOT be loosened or removed by the user under any circumstances as their
flameproof protection may be damaged by this.
3.3.1 Typical Cable Entries and Connections
A typical Hazardous Environment Enclosure is supplied with entries and connectors as shown in Figure 4.
•Connections A-D are INTRINSICALLY SAFE outputs providing galvanically isolated RF signals (see Section 17 for
details), carried on conventional 50impedance N- type female connections. The N-type connections are the
front part of the iSOLATE- CT devices which transit through the flameproof wall of the enclosure and are approved
as part of the Hazardous Environment Enclosure ATEX/IECEx certification.
•Entries D and E are M20 x 1.5 –6H threaded Ex d entries. Entry D is for the power supply, entry E for the
data connection.
• The position and configuration of cable entries and connections can vary depending on the Hazardous Environment
Enclosure ordered. Check with Ventev for more information if required
FIGURE 4: Hazardous Environment Enclosure
External Entries and Connections

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3.4 Earthing
Warning!
The Hazardous Environment Enclosure MUST be earthed. It must be connected to the
plant earth system using at least one of the external bonding points, using a minimum
4mm2 conductor. The earth cable must be installed in accordance with the requirements
of IEC 60079-14.
Warning!
Hazardous Environment Enclosure door earth bond must not be removed.
Warning!
The Hazardous Environment Enclosure internal power input connector has an earth
connection, which must be terminated to the protective earth conductor of the incoming
power supply.
3.4.1
Location of Hazardous Environment
Stainless-Steel Enclosure External
Earth Bond Points
There is an M5 threaded earth bond point on each
of the four enclosure feet.
3.4.2
Location of Hazardous Environment
Aluminum Enclosure External Earth
Bond Points
Single M4 Threaded Earth Point
FIGURE 5: Hazardous Environment Stainless Steel Enclosure
External Earth Bond Points
FIGURE 6: Hazardous Environment Enclosure Earth Bond Point

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3.5 Electrical Installation
Important
Do not exceed the power supply parameters specified on the Hazardous Environment
Enclosure external rating plate.
Important
Only replace the fuse with the same value and type indicated on the internal fuse
identification label.
FIGURE 7: Hazardous Environment Enclosure Internal Connections Showing All Options

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DESIGNATOR PURPOSE COMMENTS
TABLE 2: Hazardous Environment Enclosure Internal Connection/Features
AFuse Older
Contains 1 active fuse and 1 spare.
Not fitted on POE version.
See Section 3.7 for details.
BPower Input
Mains (L,N,E) or DC (+,-,E) input,
dependent on product configuration.
Not fitted on PoE version.
See Section 3.6 for details.
CFiber Input
This can be single mode or multimode
fiber, or replaced by a blanking plate,
depending on product options.
See Section 3.9.3 for details.
DCAT5E Input
This 10/100/1000 Base T CAT5E data
connection. It may also be replaced
by a blanking plate, depending on
product options.
See Section 3.9.1 for details.
EConsole Port
This is a serial console port for
Cisco access points.
See Section 3.9.4 for details.
FFiber Splice Tray This is a 12-way fiber splice tray, only
fitted when the fiber option is selected.

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LIVE
EARTH
NEUTRAL
3.6 Power Supply
Important
The Hazardous Environment Enclosure may be powered from a number of different
power sources, depending on its configuration. Refer to the rating plate of the unit
supplied for details.
FIGURE 8: Hazardous Environment Enclosure Mains Power Connection
The mains power connection is made with a two-part screw-terminal connector (supplied), the plug part is Phoenix
Contact 1804917. It has a minimum tightening torque of 0.5Nm, a maximum of 0.6Nm, and requires a 3.5mm x 0.6mm
slotted screwdriver.

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WIRE TYPE
MINIMUM
CROSS-SECTIONAL AREA
MAXIMUM
CROSS-SECTIONAL AREA
TABLE 3: Hazardous Environment Enclosure Power Connector Wire Gauges
Single Solid Core
0.2mm2
4mm2
Single Stranded Wire
0.2mm2
4mm2
Single Stranded Wire,
with Ferrule with and
0.25mm2
4mm2
without Sleeve
Two Solid
Conductors with
0.2mm2
2mm2
Same Cross Section
Two Stranded
Conductors with
0.2mm2
1.5mm2
Same Cross Section
Two Stranded
Conductors with
Same Cross Section,
0.25mm2
1.5mm2
with Ferrules
without Sleeves

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3.7 Fusing
Important
Only replace the fuse with the correct type, having established the reason for the fuse blowing.
3.7.1 Fuse Ratings
The Hazardous Environment Enclosure is fitted with a single fuse on the live circuit, of either a 1A or 2A, depending on
its configuration. The fuse requirement for the specific model supplied is written on the top plate next to the fuse holder.
The Hazardous Environment Enclosure contains surge suppression and filtering devices, which may cause the fuse to
blow if the unit is subjected to power surges or transients.
Replacement fuses should be either 1 or 2A Time-lag 20mm x 5mm HRC Fuses, rated at 250VAC, 1500A interrupt
rating, for example Littelfuse 0215001.MXP or 0215002.MXP.
3.7.2 Changing Fuse
See Figure 9 for access to Fuse. The fuse holder also carries a spare fuse for convenience.
FIGURE 9: Fuse Access
3.8 External Overcurrent Protection
The Hazardous Environment Enclosure should be installed on a circuit with a double-pole circuit breaker of a maximum
of 25A. This is the maximum current rating of the smallest internal chassis earth bond in accordance with EN60950-1
2.6.3.3. Refer to Ventev if it becomes necessary to exceed this rating.

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3.9 Data Connections
3.9.1 Copper Ethernet
Information
Check that the line speed of the switch port to which the Hazardous Environment Enclosure
is connected matches the Hazardous Environment Enclosure port configuration, otherwise
communication may not be established.
If Copper Ethernet is specified, this will be terminated in a standard CAT5E RJ45 Socket on the front plate of the
Hazardous Environment Enclosure, Position D in Figure 6. Typically, the interface will be an IEEE 10/100/1000BaseT
format, but this is dependent on the access point installed.
Terminate the RJ45 plug as follows (EIA 568B standard):
FIGURE 10: RJ45 CAT5E EIA 568B Plug Wiring
3.9.2 Power-Over-Ethernet (PoE)
Warning!
Optical radiation hazards may be present within the Hazardous Environment Enclosure
–observe the warning labels fitted.
Important
Ensure that only the correct fiber transceiver format/power is connected to the
Hazardous Environment Enclosure. Damage to the Hazardous Environment Enclosure
fiber interface or customer equipment may occur if the wrong format/excessive optical
power is used.
If Power-Over-Ethernet (PoE) is used, the format will depend on the access point installed in the Hazardous Environment
Enclosure. Ensure that the correct Power Sourcing Equipment (PSE) is used. Connect the RJ45 cable per Section 3.9.1.