Dahua Technology DH-IPC-HDEW8441R-Z User manual

Explosion-Proof Camera Installation Manual
Explosion-Proof Camera
Quick Start Guide
No. DH - IPC - HDEW-Um-01-2021
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.
V1.0.2

Quick Start Guide
I
Foreword
General
This manual introduces the installation and operations of explosion-proof camera (hereinafter
referred to as "the Camera").
Model:
DH-IPC-HDEW series.
Safety Instructions
The following categorized signal words with defined meaning might appear in the manual.
Signal Words Meaning
WARNING
Indicates a high potential hazard which, if not avoided, will result
in death or serious injury.
CAUTION
Indicates a potential risk which, if not avoided, could result in
property damage, data loss, lower performance, or unpredictable
result.
NOTE Provides additional information as the emphasis and supplement
to the text.
Revision History
Version Revision Content Release Time
V1.0.2 Updated the cable description. Octorber 2021
V1.0.1 Update "3.3(Optional) Installing SD Card". September 2021
V1.0.0 First release. July 2021
About the Manual
This manual is consistent with the Camera. For the information that might be updated in the
future, the explosion-proof certificate shall prevail.
We are not liable for any loss caused by the operations that do not comply with the manual.
The manual would be updated according to the latest laws and regulations of related regions.
For detailed information, see the paper manual, CD-ROM, QR code or our official website. If
there is inconsistency between paper manual and the electronic version, the electronic version
shall prevail.
All the designs and software are subject to change without prior written notice. The product
updates might cause some differences between the actual product and the manual. Please
contact the customer service for the latest program and supplementary documentation.

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II
There still might be deviation in technical data, functions and operations description, or errors
in print. If there is any doubt or dispute, please refer to our final explanation.
Upgrade the reader software or try other mainstream reader software if the manual (in PDF
format) cannot be opened.
All trademarks, registered trademarks and the company names in the manual are the properties
of their respective owners.
Please visit our website, contact the supplier or customer service if there is any problem
occurred when using the device.
If there is any uncertainty or controversy, please refer to our final explanation.

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III
Important Safeguards and Warnings
The manual will help you to use the Camera properly. Read the manual carefully before using the
Camera, and keep it well for future reference.
Avoid heavy stress, violent vibration, and water splash during transportation, storage, and
installation. Complete package is necessary during the transportation when the Camera is
delivered or is returned to the manufacturer for repair. We will assume no responsibility for any
damage or problem caused by the incomplete package during the transportation.
Protect the Camera from falling down or heavy vibration.
Buckle the safety hook before installing the Camera if it is included.
To avoid damage, keep the Camera away from televisions, radio transmitters, electromagnetic
devices, electric machine, transformers, and speakers; do not install the Camera in places with
smoke or vapor, high temperature, and lots of dust; do not install the Camera near the heating
furnace and other heat sources, such as spotlight, kitchen, and boiler room.
Do not dissemble the Camera; otherwise it might cause dangers or device damage. Contact
your local retailer or customer service center for internal setup or maintenance requirements.
Do not aim the lens at strong light (such as lamplight, sunlight) for focusing; otherwise, it might
cause over brightness or flickering (which is not because of device error), impacting sensor
lifespan (CCD or CMOS).
When using a laser beam device, avoid exposing the device surface to laser beam radiation.
Do not place the device in the humid, dusty, extremely hot and cold site with strong
electromagnetic radiation or unstable illumination.
Avoid liquids entering the device and then damaging the components.
Keep the Camera well ventilated to avoid heat gathering.
Install the device in a place where only professionals with relevant safety protection and
warning knowledge can enter. When the device is working normally, non-professionals entering
the Camera installation area might cause injury.
Make sure that there is no metal, or inflammable, explosive substance in the Camera; otherwise
it might cause fire, short-circuit, or other damage. Power off the Camera and disconnect the
power cable immediately if there is water or other liquid falling into the Camera. And contact
your local retailer or after-sales service center. Avoid sea water or rain eroding the Camera.
Avoid the lens aiming at intense light source, including sunlight, and incandescent light;
otherwise the lens might be damaged.
To avoid the risk of discharge caused by static electricity on the surface of the product, the
ground terminal of the product body must be reliably connected to the ground terminal of the
installation site. The dome of the product body is treated with conductive coating hardening to
reduce the risk of static electricity accumulation. Avoid exposing the device to ultraviolet rays.
Typical ambient temperature range is -40°C to 85°C, and humidity is 85% RH.
There might be a risk of electrostatic discharge seeping on the dome cover. After adjusting the
camera, cut off the power before installing the top cover of the dome. Avoid directly exposing
the dome cover of the Camera to other equipments and human bodies.
The Camera uses G 3/4 thread (for external connection) at the outlet of the bottom shell.

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Use the power adapter recommended by the manufacturer.
For the Camera that supports laser, do not aim the laser directly at eyes. And keep a proper
distance from the flammable to avoid fire.
Do not connect several cameras to one power adapter; otherwise it might result in overheat or
fire if it exceeds the rated load.
If there is any smoke, disgusting smell, or noise from the Camera, power off the Camera and
disconnect the power cord immediately, and contact your local retailer or customer service
center.
We will assume no responsibility for any problems (such as water intrusion or loose cables)
caused by unauthorized modifications, disassembly or repair, incorrect installation or use, and
overuse of certain components.
Requirements for Installation and Maintenance Personnel
Hold certificates or experiences related to installation and maintenance of the closed-circuit
television (CCTV), and have certificates related to working at height.
Have basic knowledge and installation skills of CCTV system.
Have basic knowledge and operation technique for low-voltage wiring and low-voltage
electronic circuit connection.
Have the ability to read and understand the manual.
Have explosion-proof related certificates.
Requirements for Lifting the Camera
Select appropriate tools and place to lift the Camera.
Make sure that the selected tools reach the installation height.
Make sure that the selected tools have high safety performance.
Storage Requirements
The warehouse should be well ventilated and free from corrosive gases; the ambient
temperature should be: T5/T100°C: –40 °C to 55 °C; T6/T80°C: –40 °C to +55 °C. The relative
humidity should be no more than 85%; there should be no strong mechanical vibration, impact
or strong magnetic field.
Keep the Camera away from fire source, and do not store it with corrosive, inflammable and
explosive materials.
If the Camera has been stored for more than 18 months, it should be resubmitted for inspection
and confirmation.
Transportation Requirements
Handle the Camera with care, and do not throw, roll or trample it.
Avoid damp, extrusion and rain during transportation.

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Do not ship the Camera with corrosive, inflammable and explosive materials.

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Table of Contents
Foreword............................................................................................................................................................ I
Important Safeguards and Warnings............................................................................................................. III
1 Overview........................................................................................................................................................ 1
Introduction................................................................................................................................................................................. 11.1
Naming Rule................................................................................................................................................................................. 11.2
Application ................................................................................................................................................................................... 21.3
Mechanical Structure................................................................................................................................................................ 31.4
1.4.1 Mechanical Specification ........................................................................................................................................... 3
1.4.2 Explosion-proof Structure ......................................................................................................................................... 3
Electric Specification................................................................................................................................................................. 41.5
Environment Requirements................................................................................................................................................... 41.6
Repair and Maintenance ......................................................................................................................................................... 61.7
1.7.1 Notes to Maintenance................................................................................................................................................. 6
1.7.2 Preparation...................................................................................................................................................................... 6
2 Installation Preparation ................................................................................................................................ 7
Packing List................................................................................................................................................................................... 72.1
Dimensions................................................................................................................................................................................... 82.2
Cable Connection ...................................................................................................................................................................... 82.3
2.3.1 Cable Description ......................................................................................................................................................... 8
2.3.2 Connecting the Alarm Cable ..................................................................................................................................10
2.3.3 Connecting the Explosion-Proof Flexible Tube ...............................................................................................11
2.3.4 Grounding Description.............................................................................................................................................12
Cable Preparation ....................................................................................................................................................................132.4
3 Device Installation....................................................................................................................................... 15
Installation Conditions...........................................................................................................................................................153.1
3.1.1 Installation Accessories and Tools ........................................................................................................................15
3.1.2 Precautions before Installation..............................................................................................................................15
Installation Method.................................................................................................................................................................163.2
(Optional) Installing SD Card ...............................................................................................................................................163.3
Installation Procedure ............................................................................................................................................................173.4
3.4.1 Wall Mount ....................................................................................................................................................................17
3.4.2 Ceiling Mount...............................................................................................................................................................20
3.4.3 Adjusting Lens Angle ................................................................................................................................................21
4 Network Configuration ............................................................................................................................... 22
4.1 Initializing Device.....................................................................................................................................................................22
4.2 Modifying Device IP Address...............................................................................................................................................23
4.3 Logging in to Web Interface.................................................................................................................................................24
5 Troubleshooting .......................................................................................................................................... 25
Thunder-Poof and Surge Protection......................................................................................... 26Appendix 1
RS-485 Cable............................................................................................................................... 28Appendix 2
Appendix 2.1 Basic Features .......................................................................................................................................................28
Appendix 2.2 Common Issues in Use ......................................................................................................................................28

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Appendix 2.3 FAQ on RS-485 Cable..........................................................................................................................................29
Wire Gauge Reference Sheet ..................................................................................................... 30Appendix 3
Cybersecurity Recommendations............................................................................................. 31Appendix 4

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1
1Overview
Introduction1.1
As a new generation of explosion-proof monitoring device, the Camera uses more advanced
manufacturing technology, so that the quality, performance and appearance outperform the
competitors. It adopts new design in structure and the engineering construction is simple. Moreover,
the installation will not affect the overall aesthetic look of the monitoring site. The Camera has
features such as clear image, digitization, intelligence, and easy installation.
The Camera is designed and manufactured in strict accordance with standards such as
IEC60079-0:2017, IEC60079-1:2014, IEC60079-31:2013, EN60079-0:2018, EN 60079-1:2014, EN
60079-31:2014. The enclosure is rated IP68. The Camera can be widely used in oil, chemical
engineering, wharf, port, mine, aerospace, food processing, and other sites.
Naming Rule1.2
Naming ruleFigure 1-1
Model Description
DH-IPC-HDEW8441R-Z Dahua 4MP Camera
IPC-HDEW8441R-Z General 4MP Camera
DH-IPC-HDEW8441RP-Z Dahua 4MP Camera (PAL standard)
IPC-HDEW8441RP-Z General 4MP Camera (PAL standard)
DH-IPC-HDEW8441RN-Z Dahua 4MP Camera (NTSC standard)
IPC-HDEW8441RN-Z General 4MP Camera (NTSC standard)
DH-IPC-HDEW8241R-Z Dahua 2MP Camera
IPC-HDEW8241R-Z General 2MP Camera
DH-IPC-HDEW8241RP-Z Dahua 2MP Camera (PAL standard)
IPC-HDEW8241RP-Z General 2MP Camera (PAL standard)
DH-IPC-HDEW8241RN-Z Dahua 2MP Camera (NTSC standard)
IPC-HDEW8241RN-Z General 2MP Camera (NTSC standard)
DH-IPC-HDEW8841R-Z Dahua 8MP Camera

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Model Description
IPC-HDEW8841R-Z General 8MP Camera
DH-IPC-HDEW8841RP-Z Dahua 8MP Camera (PAL standard)
IPC-HDEW8841RP-Z General 8MP Camera (PAL standard)
DH-IPC-HDEW8841RN-Z Dahua 8MP Camera (NTSC standard)
IPC-HDEW8841RN-Z General 8MP Camera (NTSC standard)
IPC-HDEW8441R-Z-27135-316 General 4MP Camera (Model for Eastern Europe)
IPC-HDEW8441R-Z-27135-316-
CER
General 4MP Camera (Model for Eastern Europe with
certification sign)
Application1.3
Explosion-Proof Sign and Application
IECEx mark：Ex db IIC T6/T5 Gb
Ex tb IIIC T80 °C /T100 °C Db
T5/T100 °C：–40 ºC≤ Tamb≤+60 °C
T6/T80ºC：–40 °C≤ Tamb≤+55 °C
ATEX mark：II2 G D
Ex db IIC T6/T5 Gb
Ex tb IIIC T80 °C /T100 °C Db
T5/T100 °C：–40 ºC≤ Tamb≤+60 °C
T6/T80ºC：–40 °C≤ Tamb≤+55 °C
Explosion proof sign information (1)Figure 1-2
Explosion proof sign information (2)Figure 1-3

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Suitable for area 1&2 with explosive gas (IIA, IIB, IIC), and area 21 & 22 with explosive dust (IIIA, IIIB,
IIIC).
Do not open the camera when power is on or under the environment with explosive gas.
Mechanical Structure1.4
1.4.1 Mechanical Specification
Table 1-1 Mechanical specification
Parameter Description
Material 316L stainless steel by default; stainless steel 304 customizable
IP rating IP68
Cable outlet hole 1
Cable outlet hole thread G 3/4 thread (for external connection)
1.4.2 Explosion-proof Structure
The enclosure design of the Camera guarantees that no external explosion, caused by internal
operation when explosive gas mixture gets inside, can happen. Several factors have been
considered to guarantee the explosion-proof performance, such as enclosure intensity, junction
surface gap and length among components, and maximum surface temperature of the
enclosure.
After the welding and finish machining, the enclosure can sustain the severe hydrostatic test.
With 10 s –20 s 2 Mpa test pressure , there is no water dripping and deformation.
When the Camera is working normally, the maximum surface temperature of the enclosure is no
more than:
80°C; under the environment with T6 explosive gas and ambient temperature: –40°C to
+55°C;
100°C; under the environment with T5 explosive gas and ambient temperature: -40°C to
+60°C;
The observation window is made of tempered glass, and it has passed impulse test and thermal
shock test.
(IP) degree of protection of enclosure: IP68 (1 m/1 h).
The Camera adopts gland packings to lead the cable in, which makes the cable fully
compressed without loosen.

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Electric Specification1.5
Table 1-2 Electric specification
Parameter Description
Input voltage 12 VDC
Maximum current ≤ 0.7 A
Power consumption ≤ 8.4 W
Electrical connection Power, Ethernet, audio ports, alarm and RS-485 port on the control cable
by default.
Power Standard
Make sure that the power supply is correct before operating the device. Strictly follow the local
electrical safety standards.
Strictly follow the power supply requirements of the device.
Use the power adapter of a regular brand with UL, CE\FCC and other related certifications
passed.
Input the rated voltage 12 VDC (±10% voltage) and input the rated current 2A power
adapter to supply power to the device.
Provide stable long-time power supply.
The power adapter provided with the Camera is recommended.
If power adapter does not come with the Camera, select a power source that complies with
IEC62368-1/IEC60950-1. IEC62368-1 requires compliance with ES1 (Electrical Energy Source
Class 1) and PS1/PS2 (Power Source Class 1 or 2) classification standards and Limited Power
Source Standards. IEC60950-1 requires compliance with SELV (Safety Extra-low Voltage
Circuit) and Limited Power Source standards.
Install cables with easy-to-use circuit breaker, which is for emergent power off when necessary.
Do not tread or put pressure on the power cable, especially the plug, the outlet and the
connection point where the cable comes out.
Environment Requirements1.6
Table 1-3 Environment requirements
Parameter Description
Air pressure 80 kPa–110 kPa
Operating
temperature T5/T100 °C: –40 °C to +60°C; T6/T80°C: –40 °C to +55 °C
Operating humidity ≤ 85% (RH)
Special conditions of use:
1. End user shall comply with the manufacture’sUser manual tominimize therisk from electrostatic
discharge: Conductors and live parts are prohibited from contacting the non-metallic enclosure
during normal operation of the equipment. Use insulators to contact non-metallic enclosures
during maintenance.
2. Tamb1: -40°C to+60°C.
Tamb2: -40°C to +55°C.

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Other Notes:
Special temperature range: T5/T100°C: –40 °C≤ Tamb≤ +60 °C, T6/T80°C: –40 °C≤ Tamb≤ +55 °C.
You can use a soft damp cloth to wipe the body of the device. While using the device, do not
touch metal objects to prevent electrostatic discharge.
●The Camera is delivered with an eight-meter control cable. The external wiring of the Camera
should be carried out with the device that meets explosion-proof requirements or under safe
area environment. The wire diameter size for external wiring allowed for 8.5mm (Do not replace
the cable randomly. Confirm with the manufacturer if you do need to replace it).
●Tightening torque of the compression component≥25.5 Nm
●Yield strength of fastening bolt: > 450 MPa.
●Make sure that all the explosion-proof components are complete without any cracks and
defects.
●Install the Camera in a stable place that does not shake and does not have shock vibrations or
insulation-break vapor. Securely install the Camera to make sure that it remains still and does
not move in either direction.
●Do not touch the heat dissipation components of the Camera to avoid getting burnt.
●Do not disassemble the Camera unprofessionally. Otherwise, it might cause water leakage or
bad image. If you find that the lens is foggy or the desiccant turns green after disassembling the
device, contact the after-sales service to replace the desiccant. (Some model may not have the
desiccant particles, and the actual conditions shall prevail.)
●It is recommended to use the Lightening Protector for better lightning-proof effect.
●Do not touch the image sensor (CMOS) directly. Dust and dirt could be removed with soft cloth
that is moistened with alcohol.
●Clean the device body with soft dry cloth, and for stubborn stains, use the cloth with mild
detergent. To avoid possible damage on device body coating which could cause performance to
decrease, do not use volatile solvent such as alcohol, benzene, diluent and so on to clean the
device body, nor can strong, abrasive detergent be used.
●Dome cover is an optical component. Do not touch or wipe the cover with your hands directly
during installation or operation. To remove dust, grease or fingerprints, wipe gently with oil-free
cotton moistened with diethyl or moistened soft cloth. You can also remove dust with an air
blower.
●Use a wet cloth to clean the transparent cover. The transparent cover has a potential
electrostatic charge hazard.
●Strengthen the protection of network, device data and personal information by adopting
measures which include but not limited to using strong password, changing password regularly,
upgrading firmware to the latest version, and isolating computer network. For some devices
with old firmware versions, the ONVIF password will not be changed automatically along with
the change of the system password, and you need to upgrade the firmware or manually update
the ONVIF password. Updating firmware will optimize the functions of the Camera without
consuming more power.
●Use standard components or accessories provided by manufacturer and make sure that the
device is installed and maintained by professional engineers.

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Repair and Maintenance1.7
1.7.1 Notes to Maintenance
●Equipment maintenance units orindividuals must have relevant explosion-proof qualifications
and should understand the requirements ofnational regulations andstandards related to
maintenance work.
●You should understand whether the repair unit meets related conditions, especially the
conditions oftheprocessing equipment and personnel directly related tothe repair work. If you
repair thedevice by yourself, learn relevant regulations and standards first.
●The inspection and repair ofthe flameproof enclosure should be carried out in accordance with
the current national technical regulations. Donot modify and replace the shell structure, the
materials and dimensions ofthe main components, such as explosion-proof joint surfaces,
dome cover and encapsulation components, cable entry devices, fasteners. Destruction of
explosion-proof performance, such asdrilling holes in the shell, shall not becarried out without
the agreement ofthe inspection agency and the manufacturer.
●If there are any doubts about the repair method, ask the manufacturer orthe explosion-proof
inspection unit.
●Cut off the power before camera maintenance andoverhaul, andconsult after-sales service to
make sure that the device installation area is safe.
●Make sure that the power is off when you connect the cables, install oruninstall the Camera.
●If the Camera will not be used for a long time, unplug the power cable.
●Keep thepacking box well for future transportation.
1.7.2 Preparation
●Before repair: Clarify the maintenance content and prepare the tools, materials and instrument
needed; cut off the power first and confirm the scope of the power outage; distinguish the
nature of the overhaul site, the degree of danger in the explosion hazard place, and category of
hazardous area.
●When inspecting and repairing in explosion-hazardous area, the specified explosion-proof tools
are needed. The instruments used for inspection and repair must also be explosion-proof.
●In allowed conditions, move the explosion-proof cameras that need to be overhauled away
from the original area for repair.
●When disassembling and assembling parts related to explosion-proof performance, the
explosion-proof performance of other parts must not be damaged. Explosion-proof surface
cannot have any scratches.
●Carry out a comprehensive inspection and debugging before putting the device into use after
maintenance. In case of restoring electrical performance, the Camera can be put into operation
only if the explosion-proof performance is restored.

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2Installation Preparation
Packing List2.1
After unpacking, check whether there is obvious damage to the appearance, and check whether the
accessories are complete against the packing list. If everything is fine, you can start to install the
Camera.
Packing listFigure 2-1
Do not drag or pull the cables to lift the Camera when carrying it. See Figure 2-2 for the wrong way.
Wrong way of carrying the cameraFigure 2-2

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Dimensions2.2
The following figure is for reference only, and the actual product shall prevail.
Dimensions (mm [inch])Figure 2-3
Cable Connection2.3
2.3.1 Cable Description
When delivered out of factory, the Camera is connected with a composite cable. The cable threads
out from the outlet hole at the Camera rear, and it is 8 m by default. The diameter of the cable is
8.5mm.
The cables vary with the product models, and the actual cables shall prevail. The manual will
introduce the cables as complete as possible.

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CablesFigure 2-4
Table 2-1 Cable description
No. Description No. Description
1 Ethernet port. 4
Power port.
Red: 12 VDC+
Black: 12 VDC–
2
Alarm I/O port.
Brown: Alarm output 1
Green: Alarm output 1 ground
Blue: Alarm input 1
White: Alarm input 2
Gray: Alarm input ground
White-yellow: Alarm input 3
Red: Alarm output 2
Black: Alarm output 2 ground
5
Audio port.
White-Red: Audio input+
White-orange: Audio input–
Pink: Audio output+
Purple: Audio output–
3
RS-485 port.
Yellow-black: A+
Yellow: B–
— —
For more information about cable ports, see Table 2-2.
Table 2-2 Cable information
No. Port name Description
1 Ethernet port Connects to network with network cable.
2 Alarm I/O
Includes alarm signal input and output ports, the number of I/O
ports might vary on different devices. For detailed information,
see Table 2-3.
3 RS-485 Controls external devices, such as PTZ.

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No. Port name Description
4 12 VDC power
input
Inputs 12 VDC power. Be sure to supply power as instructed in
the manual.
Device abnormity or damage might occur if power is not
supplied correctly.
5 Audio input/output
Connects to sound pickups to receive audio signal, or connect
to speaker to output audio signal
Audio input/output is available on select models.
For more information about I/O port, see Table 1-2.
Table 2-3 Alarm information
Port Port Name Description
Alarm I/O
ALARM_IN Receives the switch signal of external alarm source.
Connect different alarm input devices to the same
ALARM_IN_GND port.
ALARM_GND
ALARM_OUT Outputs alarm signal to alarm device.
When connecting to alarm device, only the
ALARM_OUT port and ALARM_OUT_GND port with the
same number can be used together.
ALARM_OUT_GND
2.3.2 Connecting the Alarm Cable
Alarm input/output is available on select models.
Connect alarm input device to the alarm input end of the I/O port.Step 1
Device collects different states of alarm input port when the input signal is idling and being
grounded.
Device collects logic "1" when input signal is connected to +3V to +5V or idling.
Device collects logic "0" when input signal is grounded.

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Alarm inputFigure 2-5
Connect alarm output device to the alarm output end of the I/O port. The alarm output isStep 2
open-drain output, which works in the following modes.
Mode A: Level application. Alarm outputs high and low level, and the alarm outlet is OD,
which requires external pull-up resistance (10K Ohm typical) to work. The maximum
external pull-up level is 12V, maximum port current is 300mA and the default output
signal is high-level (external pull-up voltage). The default output signal switches to low-
level when there is alarm output.
Mode B: Switch application. Alarm output is used to drive external circuit, the
maximum voltage is 12V and the maximum current is 300mA. If the voltage is higher
than 12V, please use an additional electric relay.
Alarm outputFigure 2-6
Log in to web interface, and configure alarm input and alarm output in alarm setting.Step 3
The alarm input on the web interface is corresponding to the alarm input end of the I/O
port. There will be high level and low level alarm signal generated by the alarm input
device when alarm occurs, set the input mode to "NO" (default) if the alarm input signal
is logic "0" and to "NC" if the alarm input signal is logic "1".
The alarm output on the web interface is corresponding to the alarm output end of the
device, which is also alarm output end of the I/O port.
2.3.3 Connecting the Explosion-Proof Flexible Tube
Before connecting the composite cable, you need to make it explosion-proof. The common method
is to cover the cable with an explosion-proof flexible tube.
Cover the cable with the explosion-proof flexible tube, remove the compression nut, and fixStep 1
explosion-proof flexible tube to external 3/4 thread.

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Installation of explosion-proof flexible tube (1)Figure 2-7
Table 2-4 Flexible tube installation (1)
No. Description
1 Explosion-proof flexible tube
2 Ex certified compression nut
3 Outlet hole
Tighten the thread connector and then the explosion flexible tube.Step 2
Installation of explosion-proof flexible tube (2)Figure 2-8
Table 2-5 Flexible tube installation (2)
No. Description
1 Explosion-proof flexible tube
2 Outlet hole
2.3.4 Grounding Description
Make sure that the Camera is properly grounded. Grounding wire of external bonding should meet
the requirements in IEC60079-0:17 sheet 12. For external grounding mark, see Figure 2-9.