SmartPurge II - Expo Technologies

SmartPurge II - Expo Technologies
SP2-PX-ss SmartPurge
Manual
ML 484
ML484 | v11
08-June-15
Section 1
System Specification .......................................................................................... 1
SmartPurge Control Unit Data ........................................................................................... 1
Electrical Ratings ............................................................................................................... 2
Section 2 Quick User Guide .................................................................................................. 3
Installation.......................................................................................................................... 3
Operation of the System .................................................................................................... 3
Purge Parameter Setup ..................................................................................................... 4
Section 3 Application Suitability........................................................................................... 5
Section 4 Description and Principle of Operation............................................................... 5
Section 5 Main Components ................................................................................................. 6
SmartPurge Controller ....................................................................................................... 6
Air Supply Unit ................................................................................................................... 6
Solenoid Digital Valve for Manual Leakage Compensation – SP2-DV.............................. 6
Continuous Flow Control Valve – SP2-CF......................................................................... 6
General Safety Warnings................................................................................................... 8
Electrical Safety ................................................................................................................. 8
Torque for electrical terminals ........................................................................................... 8
Compressed Air ................................................................................................................. 8
Hazardous area safety....................................................................................................... 8
Air Supply Quality .............................................................................................................. 8
Purge Outlet Unit ............................................................................................................... 9
SmartPurge Controller Unit................................................................................................ 9
Non-Intrinsically Safe Terminals ........................................................................................ 9
Intrinsically Safe Terminals .............................................................................................. 10
SmartPurge Interface Unit (SIU) Signal Isolation............................................................. 10
Mounting the SmartPurge and Air Supply Unit ................................................................ 11
Remote Control Panel (Optional)..................................................................................... 13
Tristate LED (Optional) .................................................................................................... 13
Section 7
Commissioning ..................................................................................... 13
Initial Commissioning ....................................................................................................... 13
Commissioning ................................................................................................................ 13
Section 8 Configuration....................................................................................................... 15
System Configuration....................................................................................................... 15
......................................................................................................................................... 15
A: Purge System Status................................................................................................... 18
B: Language .................................................................................................................... 18
C: Settings Display .......................................................................................................... 18
D: Passwords................................................................................................................... 18
E: Password Override...................................................................................................... 19
Operational Strategies ..................................................................................................... 24
......................................................................................................................................... 27
Section 9
Maintenance of the System ................................................................. 27
Routine Maintenance ....................................................................................................... 27
Repairs............................................................................................................................. 28
Section 10
Fault Finding......................................................................................... 29
Section 11
Section 12
Recommended Spares List .............................................................................. 30
Drawings and Diagrams ................................................................................... 30
Section 13
Certificates............................................................................................ 30
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i
Section 1. System Specification
SmartPurge Control Unit Data
Model Number
SP2 – ab – c
a=
b=
c=
Purge Flow Range
P
for Purge and Pressurize Control Unit
F
for Fan Control Unit
M
for Mains Universal Voltage
L
for Low Voltage
ss
for Stainless Steel
Leakage Compensation: 110 - 540 Nl/min
Continuous FLow 10 - 540 NI/min
Purge Time
1-99 minutes
Low Pressure Trip Options
Immediate Trip, Alarm Only, Delay Trip (Up to 99 mins)
Enclosure Pressure
0.8 - 7 mbarg after purge
Environmental Protection
IP65 316 Stainless Steel Enclosure
Mounting Position
May be mounted in any position external to pressurized enclosure
Control Unit Dimensions
Stainless steel = 187 x 139 x 107 mm (7.3" x 5.3" x 4.2")
Temperature
-20 to +60ºC
Approvals
IECEx
IEC 60079-0 : 2007-10
IEC 60079-11 : 2006
IEC 60079-18 : 2009
IEC 60079-2 : 2007-02
IEC 60079-31 : 2008
IEC 60079-7 : 2006-07
IEC 61241-4 : 2001
IECEx FME11.0006
Ex e ib mb [p] IIC T4 Gb
Ex tb [pD] IIIC T135ºC Db IP64
-20°C to +60°C
ATEX
0518
II 2 (2) GD
EN60079-0 : 2009
EN60079-2 : 2007
EN60079-7 : 2007
EN60079-11 : 2007
EN60079-18 : 2009
EN60079-31 : 2009
EN61241-4 : 2006
EN60529 : 1991 + A1: 2000
FM11ATEX0060
Ex e ib mb [p] IIC T4 Gb
Ex tb [pD] IIIC T135ºC Db IP64
-20°C to +60°C
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USA
ANSI/ISA 60079-0
ANSI/ISA 60079-11
ANSI/ISA 60079-18
ANSI/ISA 60079-2
ANSI/ISA 60079-31
ANSI/ISA 60079-7
ANSI/IEC 60529
Class I, Zone 1
AEx e ib mb [p] IIC T4 IP64
Class I, Zone 21
AEx tb [pD] IIIC 135ºC IP64
-20º to +60ºC
Canada
CAN/CSAE 60079-0
CAN/CSAE 60079-11
CAN/CSAE 60079-18
CAN/CSAE 60079-2
Ex e ib m [p] IIC T4 Gb IP64
-20ºC to +60ºC
Safety Integrity Level
ESC: A127_CT001_(2.0)
Weight
Electrical Ratings
4.2kg (9.3lb)
SmartPurge Control Unit
Power Supply
(Terminals 1, 2):
90 - 254 Vac: Universal
Voltage
Um = 254 Vac
11 - 28 Vdc: Low Voltage
Alarm Contact
Ratings:
(Terminals 5, 6 and 7, 8)
240 V, 1 A Fuse type (see Installation of the System
section for details
(Terminals 9, 10)
100mA (mains voltage)
Power Switching
2 pole
500mA (low voltage)
6A 250V AC1
5A 30V DC1
Energy limitation parameters:
Terminal TB1
Uo (Vdc)
Io (mA)
Co (μF)
Lo (mH)
Po (W)
SOV
1, 2
23.58
165.5
0.091
2.9
0.975
IP
3,4
23.58
165.5
0.091
2.9
0.975
Remote Output
9, 10, 11, 12
8.465
405.1
5.145
0.48
0.857
External Alarm
5, 6
5.88
5.9
negligible
0
0.009
Override
7, 8
5.88
5.9
negligible
0
0.009
Remote Panel, energy limitation parameters
Ui (Vdc)
8.465
ML484 | v11
Ii (mA)
405.1
Ci (μF)
5.145
Li (mH)
0.48
Page 2
Pi (W)
0.857
Section 2. Quick User Guide
Installation
The SmartPurge System must be installed by a competent engineer, in accordance with relevant standards,
such as IEC / EN 60079-14 and any local codes or practice.
• Fit the appropriate orifice plate to the system if required
• Mount the purge system in accordance with the hook-up drawing.
• Ensure the system has been installed according to the full instructions in the Installation of the System
section of this manual.
• All piping must be clean and free of dirt, condensation and debris prior to connection to the purge system
or pressurized enclosure.
Note:
It is essential for safety that the installer and user of the Expo system follow these instructions.
Operation of the System
Once installed correctly follow the directions below to make the system operational.
This Quick User Guide is the minimum necessary for the system to operate. Detailed information about
system set up can be found in the Configuration section.
When first switched on the system will display the serial number. Check that this corresponds with the system
documentation.
The Purge System Status menu will be displayed and it is possible to use
and
to scroll through
the menu to view the current system status, action on alarm and the current pressure sensor readings.
Follow directions on the next page to set up purge parameters.
Once the parameter entry has been completed, switch the air supply on. Slowly increase the pressure inside
the pressurized enclosure using the LC valve. When the required minimum pressure is reached, the
SmartPurge will initiate the purge cycle.
The elapsed purge time will be shown in the display, once a successful cycle had completed, the power to the
electrical equipment in the pressurized enclosure will be connected.
If the system has not performed as expected, check the installation thoroughly and consult the System
Configuration and Operation of the System sections.
If an obvious problem has not been highlighted and corrected, follow the procedures in the Fault Finding
section.
If all checks have been carried out and the system still does not perform as expected, contact your local
distributor or Expo Technologies.
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Purge Parameter Setup
Start At Purge
System Status
Display
Scroll through menu
screens until you reach
"Parameter Entry"
menu
Use
to scroll
and
to enter
menu
Use
Enter Operator
Password
Scroll through
sub-menu screens
until you reach "Purge
Parameters"
Sub-menu
Enter "Purge
Parameters" sub-menu
and change settings to
those on test and
inspection sheet.
to
change numbers and
to enter
use
and
to scroll
and
to enter sub menu
Use
and
numbers and
to change
to enter (enter
will also move you to the next
parameter)
Once High pressure has
been set display will
return to "Purge
Parameters menu
After 30 seconds the
display will return to
"Purge System Status"
End: system is
now ready for
operation
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and
Page 4
Section 3. Application Suitability
SmartPurge systems are certified for use in hazardous locations, where the hazardous location is non-mining
(above ground) and the hazard is caused by flammable gasses, vapours or dust. The system may be used in
IEC and ATEX Zone 1(21) and Zone 2(22) - Categories 2 and 3 respectively.
Installations in the United State shall comply with the relevant requirements of the National Electrical code®
(ANSI/NFPA-70 NEC).
Installations in Canada shall comply with the relevant requirements of the Canadian Electrical code (CSA
C22.1).
SmartPurge systems may be used for hazards of any gas or dust group. Apparatus associated with the
SmartPurge system, such as intrinsically safe signalling circuits and flameproof enclosures containing
switching devices may be limited in their gas group. The certification documentation supplied with any such
devices must be checked to ensure their suitability.
This system is primarily designed for use with compressed air. Where other inert compressed gasses are
used (Nitrogen, for example) the user must take suitable precautions so that the build up of the inert gas does
not present a hazard to health. Consult the Control of Substances Hazardous to Health (COSHH) data sheet
for the gas used. Where a risk of asphyxiation exists, a warning label must be fitted to the pressurized
enclosure.
The following materials are used in the construction of SmartPurge systems. If substances that will adversely
affect any of these materials are present in the surrounding environment, please consult Expo Technologies
ltd for further guidance.
Materials of Construction
Stainless Steel
Nylon
Acetal
Mild (Carbon) Steel
Acrylic
Silicone Foam
Brass
Polyurethane
PVC Foam
Aluminium
Polycarbonate
Section 4. Description and Principle of Operation
Purge and pressurization is a method of protection used in Zone 1 (21) and Zone 2 (22) hazardous locations
to ensure that the interior of an enclosure is free of flammable gas. Addition of a SmartPurge system allows
the electrical equipment within the enclosure to be used safely in a hazardous location.
The principle of purge and pressurization is as follows:
• Clean compressed air or inert gas is drawn from a non-hazardous location.
• The interior of the pressurized enclosure is flushed to remove any hazardous gas or dust.
• This is introduced into the pressurized enclosure to keep the internal pressure at least 0.5 mbarg above
the external pressure.
• Whilst pressurized, flammable gas cannot enter the enclosure from the environment.
Prior to switching on the power to the electrical equipment, the enclosure must be purged to remove any
flammable gas that might have entered the enclosure before pressurization. Purging is the process of removal
contaminated air and replacement with air (or inert gas) known to be free from flammable gas. The duration
of this purge process is normally ascertained by performing a purge test.
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The SmartPurge system controls the release of purge air, drawn from a non hazardous location, into the
enclosure containing electrical equipment. After the purging cycle, the system connects the power to the
equipment to be protected. It then monitors the enclosure pressure to ensure that an overpressure is
maintained.
The system is fully automatic in operation, and can be configured by the user to meet the application
requirements. If the pressure inside the protected enclosure drops below the minimum threshold the system
will either shut down the electrical apparatus and / or give an alarm signal depending on the configuration.
The default setting is immediate disconnect of the power.
Section 5. Main Components
SmartPurge Controller
The SmartPurge Control Unit is an electronic unit designed to be used in the hazardous location, it provides
the following functions:
•Microprocessor controlled purge and delay timing
•Isolation to equipment (2 pole rated 6A @ 230V AC1 duty)
•2 Status / Alarm contacts (user configurable)
•System status indication via LCD
•Delay isolation option
•Monitoring and control of purge flow
•Monitoring and control of enclosure pressurization
•Optional Remote Control Panel duplicates the front panel display and
keypad
Air Supply Unit
The SmartPurge controls the flow of protective gas into the pressurized enclosure through the Air Supply Unit.
There are three varieties of unit:
Solenoid Digital Valve for Manual Leakage Compensation – SP2-DV
This is designed for leakage compensation purging applications. The flow of gas
through the pressurized enclosure is controlled by the SmartPurge Controller. This
allows switching between the purging and leakage compensation phases of the
purge and pressurization cycle.
Continuous Flow Control Valve – SP2-CF
This is designed for continuous flow purging applications. The air flow through the
pressurized enclosure is controlled by a needle valve. Suitable for low flow rate applications, applications
where a continuous flow of air is required for cooling or when the dilution of hazardous gases generated inside
the enclosure is required.
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Accessories
Remote Control Panel – SP2-RP
This allows the SmartPurge system to be controlled from a remote
location. It is an Intrinsically Safe device that duplicates the display and
4 control buttons on the front of the main SmartPurge Unit. The Remote
Control Panel is connected to the main unit by means of a shielded 2
twisted pair cable. The cable should not be longer than 50 metres, and
have a cross sectional area of at least 0.75 mm2.
It is not possible to perform operations at both keypads simultaneously.
The keypad that is in use will “lock-out” operation at the other keypad
until the data entry is complete or the display times out and returns to the
Purge System Status Display.
An error message is displayed if a key is pressed while another display is being used.
When entering passwords, the password being entered will only show on the control terminal display which
is in use. The other display will show “0000” during password entry.
Cable Gland Kit – SP2-GK
An Expo recommended set of cable glands for field wiring. M16 Gland for cable of outer diameter 4 – 8.4 mm
and M20 Gland for cable of outer diameter 7.2 – 11.7 mm
Remote LED – SP2-RL
Tri-colour remote indication of purge systems status.
Override Switch – SP2-OS
A panel mounting, key operating switch that bypasses the SmartPurge Controller output signal.
Splash Cover – SP2-SC
A cover to protect the outlet valve from direct water jets.
SmartPurge Interface Unit – SIU
A flameproof interface used for switching higher loads or additional signals.
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Section 6. Installation of the System
The SmartPurge is designed for use under normal industrial conditions of ambient temperature, humidity and
vibration. Please consult Expo before installing this equipment in conditions that may cause stresses beyond
normal industrial conditions.
The SmartPurge system must be installed by a competent person in accordance with relevant standards, such
as EN 60079-14, and any local Codes of Practice that are in force.
The SmartPurge control unit should be installed either directly on, or close to the pressurized enclosure. It
should be installed such that the system display and certification labels are in view. The system should not be
subject to vibration. If to be mounted on a surface that may transmit vibrations it is recommend that the
SmartPurge control unit is first mounted onto a chassis plate which is mounted via Anti-Vibration (AV) mounts.
General Safety Warnings
The Expo SmartPurge purge and pressurization system must only be used in accordance with the instructions
in this manual and for the purpose described earlier.
Failure to comply with the instructions in the manual during operation, installation, commissioning and
maintenance may lead to personal injury, damage to property or voiding of the warranty and/or certification of
the SmartPurge system.
The use of a certified purge and pressurization system does not guarantee or imply the compliance of the
complete enclosure with ATEX or IECEx standards. Such compliance can only be endorsed by an EU Notified
Body.
Installation must be carried out in accordance with these instructions in conjunction with any applicable local
Codes of Practice or standards. The units should be configured prior to installation using the following
guidelines.
Electrical Safety
The system control unit contains components which may be live when powered. Always isolate power from
supply to the SmartPurge and the enclosure before opening.
Torque for electrical terminals
Intrinsically safe terminals: 0.22 - 0.25 Nm
Non-intrinsically safe terminals: 0.4 - 0.5 Nm
Compressed Air
The system uses compressed air.
•
•
•
•
•
Take precautions when connecting or disconnecting compressed air supplies.
Ensure all flexible pipes used are well secured.
Never block compressed air pipes with any part of the body.
Ensure that equipment is maintained in good condition.
The system exhausts air from the compressed air supply into the atmosphere so a clean supply must be
used. Do not allow the exhaust air to be breathed.
Hazardous area safety
The system is designed for use in hazardous areas; correct installation and maintenance are critical for safe
operation. Installation and maintenance must only be carried out by qualified and authorized personnel in
accordance with local and site regulations.
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No unauthorised modifications to the equipment should be made. Purging should be done in accordance with
the relevant standard.
Air Supply Quality
The SmartPurge system should be connected to a protective gas supply, which is suitable for purging and
pressurization.
The air supply must be: clean, non-flammable and from a non-hazardous location. It must comply with BS ISO
8573-1: 2001 Class 2.2.1 or equivalent local standards.
This is typically referred to as Instrument Air Quality. Although equipment will operate with lower air quality,
the operational life of the system will be adversely affected. The equipment that is being protected by the
SmartPurge may also suffer because of poor air quality.
Instrument Air Quality
Solid Particles
0.5 μm < particle size ≤ 1 μm, maximum 1000 particles / m3
Humidity
-40oC* pressure dewpoint
Oil Content
≤ 0.01 mg / m3 concentration total oil
* For applications where Tamb ≤ 0oC, the air supply should be Class 2.1.1 with humidity of -70oC pressure
dewpoint.
When an inert gas is being used to supply the purge system, risk of asphyxiation exists. Refer to Application
Suitability section.
Before connection of the air supply to the purge system, the supply pipe work should be flushed through with
instrument quality air to remove any debris that may remain in the pipes. This must be carried out for at least
10 seconds for every meter of supply pipe.
A method of controlling the air supply should be incorporated into the supply side to the enclosure.
Purge Outlet Unit
The Purge Outlet Unit is housed within the SmartPurge enclosure and measures flow across an orifice. It is
preset to open at an enclosure pressure of 8 - 10 mbarg.
A Spark Arrestor is added to the exhaust point of the Purge Outlet Unit to prevent the emission of arcs, sparks
and incandescent particles produced within the pressurized enclosure.
SmartPurge Controller Unit
SmartPurge has four M5 mounting points for mounting the unit to a flat surface on the pressurized enclosure,
refer to appropriate General Arrangement drawing and connected in accordance with the Hook-Up drawing.
Connections to the SmartPurge must be through the M20 & M16 Ex e cable entries. If cable entries are not
going to be used, an Ex e blanking plug must be fitted in place of the cable gland.
Non-Intrinsically Safe Terminals
Terminals 1 – 2 and earth: mains input
The unit must be supplied from a separately switched, labelled circuit with over current protection of not
greater than 6 Amps.
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The protective earth conductor must be securely attached to the protective earth terminal on the SmartPurge
terminal cover plate.
The SmartPurge is housed in and increased safety (Ex e) enclosure. This must be earthed using an earth
conductor of minimum 4 mm2, connected to the earth connection on the outside of the unit.
Terminals 3 – 4: mains output
The SmartPurge system provides a switched mains voltage output that can be used to power the protected
equipment. It can also be used to drive relays and contactors that provide the necessary switching function.
The load connected to the output from the SmartPurge must not exceed 6 A (AC1). For the Low Voltage
version, load must not exceed 5A, 28 Vdc
Terminals 5 – 6 and 7 – 8: alarms
The SmartPurge system provides two volt-free contacts rated 250 V, 1 A AC1. These provide remote
indication of the state of the purge system and for the generate alarm signals.
A fuse or other current limiting device must be placed in the circuit connected to these status contacts to limit
the current to below that specified. This must have a breaking capacity of 1500 Amps or greater. The fuse or
circuit breaker used must have an "F" characteristic to IEC 127 for a fuse, or type B characteristic for a
miniature circuit breaker. Where other types of fuse or circuit breaker are used, the user must verify that the
switching contacts have not been welded together by the current flowing in the time taken for the fuse to blow
or circuit breaker to trip.
The status / alarm outputs must not be used to control the switching of power to the protected equipment.
Terminals 9 – 10: fuse
Fuse connection, See Electrical Ratings for AC and DC versions
Intrinsically Safe Terminals
All connections to these terminals must be made from intrinsically safe circuits in accordance with the HookUp drawing.
Terminals 1 – 2: intrinsically safe solenoid valve
1. power supply +
2. power supply Terminals 3 – 4: intrinsically safe I/P converter
4 – 20 mA output:
3. current loop +
4. current loop Terminals 5 – 6 intrinsically safe external alarm
Refer to the wiring diagram for fitting of resistors.
Terminals 7 – 8 intrinsically safe override keyswitch
Refer to the wiring diagram for fitting of resistors.
Terminals 9 – 10 – 11 – 12: remote panel (or tristate LED)
9. power supply + (or common cathode)
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10.data + (or Anode: Green)
11.data - (or Anode: Red)
12power supply SmartPurge Interface Unit (SIU) Signal Isolation
The following signals may need to be considered for isolation by the SmartPurge system:
•
•
•
•
•
Video Signals.
Network cables (e.g. Ethernet, ARCNet, MODBUS)
Current loops
Status signals
3 phase power supplies
Note: 3 phase and neutral supplies need all 4 wires to be isolated. Earth wires should not be
isolated. Take care not to overtighten screws.
Mounting the SmartPurge and Air Supply Unit
Before mounting the SmartPurge, it should be configured for the flow range required. To carry out this
configuration, choose the appropriate flow rate from Table 1
Locate the appropriate Orifice Plate and Flow Restrictor (where necessary).
Using the 2 screws supplied, fix the orifice plate in position in the air entry into the SmartPurge. Refer to Figure
1 for guidance.
For systems that are using the SDV (solenoid digital valve) option, screw the brass flow restrictor into the
outlet from the SDV. A slot for a screwdriver is provided in the restrictor to assist in this operation.
The SmartPurge settings need to be configured to the new orifice size.
Normally, the SmartPurge and Air Supply Units will be mounted in diagonally opposite corners of the
enclosure to be protected.These units may be mounted internally or externally. For internal mounting of the
SmartPurge, use an EXPO adaptor plate accessory. Pipe work to and from the air supply unit must be sized
to provide adequate airflow with the minimum pressure drop (restrictive pipe fittings should be avoided). The
air outlet from the Air Supply Unit should be located or piped to the opposite side of the enclosure to ensure
effective purging, unless effective purging can be proved by other means.
It is recommended that all air supply pipe work be a minimum of 10 mm x 1 mm (3/8”)
If adequate air pressure regulation and filtration cannot be assured, it is recommended that a filter regulator
set is installed at the air inlet.
Remember that the minimum air supply pressure requirements quoted are those needed during purge. Long
pipe runs or restrictive pipes and fittings may cause substantial pressure drops.
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Figure 1:
Table 1: Air Supply Requirements
Flow
Range
Inlet Flow
Restrictor (for
SDV only)
Outlet orifice
Certified
Minimum Flow
Rate
Minimum Air Supply Requirement
Pressure at Flow
Nl/min (scfm)
Bar (psi)
Nl/min (scfm)
150 (5)
3.1 (45)
212 (7.5)
300 (10)
3.5 (50)
414 (15)
540 (19)
4.5 (65)
848 (30)
8 Hole
A
Ø2.7mm hole
= 13 mm
16 Hole
B
Ø4.2mm hole
C
None
= 18mm
None = 25 mm
Note: The minimum air supply requirements shown in the table above are greater than those shown for the
certified minimum flow rate. This is to allow for the additional air required to make up for enclosure leakage
and the tolerance of the air flow measurement
Store the orifice plate(s) and flow restrictor(s) which are not used so that the unit may be reconfigured if
required at a future date. Record the selections made in the maintenance record of this manual and mark the
flow range selected on the label with an indelible marker. If required, it may be possible to use a custom inlet
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Page 12
or outlet flow restrictor in order to achieve satisfactory purge operation. Only standard 8 & 16 hole outlet
orifices should be used. SmartPurge allows for custom orifice settings. Consult EXPO for further information..
Remote Control Panel (Optional)
The SmartPurge system may be controlled from a remote location by using the Remote Control Panel.
Refer to the drawings section for the dimensions and connection schematic for the Remote Control Panel.
The case of the Remote Control Panel has an external earth terminal. This must be used to bond the case to
earth using a 4mm2 cable minimum.
The remote terminal and the main unit must be installed in an environment where the equipotential bonding
system exists over the entire area of the installation.
The keypad and display of the remote terminal is used in exactly the same manner as those on the main unit.
It is not possible to perform operations at both keypads simultaneously. The keypad that is in use will “lockout” operation at the other keypad until the data entry is complete or the display times out and returns to the
Purge System Status Display.
Tristate LED (Optional)
This is a simple remote indication of purge status.
• Purge Complete: Green
• Purge in Progress: Amber
• Purge Low Flow: Flashing Red / Green
• Pressure Fault: Red
A stainless steel bezel mounts in a 22 mm hole and is connected to terminals 9 – 10 – 11. The maximum cable
length between the SmartPurge Control Unit and the Tritsate LED is 50 m.
This panel can only be used when the remote panel is not present.
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Section 7. Commissioning
Initial Commissioning
Note: The system is pre-set and no adjustments (other than those detailed in this document)
should be made without consultation with Expo.
•
•
•
•
•
Ensure the SmartPurge has been correctly installed.
Ensure that all electrical power to the enclosure being protected is isolated.
Check all pipe work and wiring is in accordance with appropriate instructions and wiring diagrams.
Check all doors, inspection covers and other openings in the enclosure are sealed and secure.
Close the leakage compensation valve fully (where fitted).
Commissioning
• Turn on the air supply to the Air Supply Unit.
• Turn on the SmartPurge Control Unit.
• For leakage compensation systems, slowly open the leakage compensation needle valve until the
enclosure pressure builds up above the lower limit: the Low Pressure Fault message will change to
Purge Flow Low. Once this happens, the solenoid valve in the Air Supply Unit will turn on the purge air
flow. It may take several seconds before the enclosure pressure reaches the required level.
To monitor the pressure on the display panel, press the down arrow once and the pressure in millibars will
be shown. Use the pressure display to adjust the setting of the leakage compensation regulator.
Typical enclosure pressures:
Normal Operation:
During Purge:
Minimum Pressure:
Maximum Pressure:
•
•
•
•
•
•
•
2.5 mbarg
9 mbarg
1 mbarg
14 mbarg
To verify that sufficient purge air flow is being detected, ensure that the display on the front of the
SmartPurge shows Purge in Progress and a countdown of the purge time or purge volume. A Purge
Flow Low or Purge Flow High message will be displayed if flow is insufficient. if this happens, increase
or decrease the pressure of the air supply to the unit to increase the flow until the Purge in Progress
message appears.
If the purge flow is high enough to cause an overpressure situation, the system will turn off the purge air
flow until the pressure falls below the high pressure setting. If this is occurs, reduce the purge flow rate by
reducing the supply pressure, and re-start the purge cycle.
Check that the system continues purging for the correct time or volume. Power will then be connected to
the protected equipment.
To allow for variations in temperature and air supply pressure, open the leakage compensation valve and
increase the air supply pressure by approximately 5% of the value. Observe the pressure display to
ascertain when the appropriate pressure is reached. This gives sufficient flow to trigger the flow sensor
during purge.
Record the air supply pressure and observed purge time in the maintenance record section of this
handbook.
All the critical settings of the purge parameters are protected from unauthorised modification by means of
a password access to the settings areas of the SmartPurge Menu System. Once the system is configured,
change the password from the default setting of 0000 to prevent modification by unauthorised
personnel.
Check function of alarm contacts when pressure drop below 0.5 mbar occurs.
If correct operation is not observed refer to the fault finding section of this handbook.
ML484 | v11
Page 14
Section 8. Configuration
System Configuration
Once the SmartPurge Controller has been installed it must be configured and settings such as the low
pressure, purge flow method and orifice diameter must be set up. The SmartPurge controller is configured
using the operators and a two-line display. Refer to the icons below for name and description of each button.
Menu Button
This moves to the next menu item
Up Button
This allows the user to scroll to the previous menu, confirm
Yes, display last parameter or increase digit
Down Button
This allows the user to scroll to the next menu, confirm No,
display next parameter or decrease digit.
Enter Button
This allows the user to scroll to select menu item or entry.
The Test and Inspection Sheet supplied with the unit will show the factory set parameters.
To aid the user in configuring the system to their requirements the Settings sheet should be completed.
The default screen for the SmartPurge displays Purge System Status, which provides information related to
the current state of the purge system.
The top line of the display will give a general message, such as Purge System Status and the bottom line
will give supplementary information, such as an alarm message. Pressing the Up or Down buttons will cycle
the bottom line through any supplementary messages that may be relevant.
Only prompts and parameters appropriate to selected purge method are shown on the menu system.Options
that cannot be combined will not be shown.
Pressing the menu button enters the menu system. Each press of the menu button moves the system on to
the next menu item, until the display returns to the Purge System Status display.
To change numbers for passwords or settings use
0-9.Then press
to accept entry.
or
to increase or decrease the flashing number
Once accepted the next digit will be highlighted for change or the complete entry will be accepted.
To scroll through sub-menus use
or
Then press
to choose menu.
Once accepted the next menu will be highlighted for change or the complete entry will be accepted.
Some menus will request confirmation by displaying Confirm? Y / N. Press
Page 15
for Yes and
for No.
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Page 16
A: Purge System Status *
C: Settings Display *
Enclosure Volume
Volume Changes
Purge Air Volume
Minimum Flow Rate
Purge Start
Purge Time
Delay Time
Low Pressure
Low Pressure Pre-alarm
Enclosure Target Pressure
High Pressure
Trip Function
Ext Alarm Function
Purge Flow Method
Purge Timing Method
Orifice Diameter
Alarm 1 Function
Alarm 2 Function
Serial Number
* Display only. Only prompts and parameters
relevant to the selected purge method are
shown.
B: Language
English En
Français F
Deutsch
Español E
Italiano
Norsk
Voltage Monitor *
Orifice
Re-zero flow and press Enter key to set
Zero Sensors
Enter key to set
Reset Passwords
25 mbar
Sensor Full Scale
M: x.xxV S: x.xxV
dp Flow
Custom
25 mm
18 mm
13 mm
Cal Pressure 25 mbar, Enter key to set
Pressure 25 mbar
Cal Pressure Zero, Enter key to set
Pressure Zero
D: Passwords
Change Operator Password
Change Override Password
Sensor Calibration
Menu
E: Password Override
Auto
Manual
Purge Start
Purge Parameters
Enclosure Volume
Volume Changes
Purge Air Volume
Orifice Diameter
Minimum Flow Rate
Maximum Flow Rate
Purge Time
Delay Time
Low Pressure
Low Pressure Pre-Alarm
High Pressure
Enclosure Target Pressure
Minimum Dilution Rate
Alarm 2 Function
General Alarm
Pressure Correct
Pressure Not Correct
Purge In Progress
Low Pressure alarm
Ready to Purge
Alarm 1 Function
General Alarm
Pressure Correct
Pressure Not Correct
Purge In Progress
Low Pressure alarm
Ready to Purge
External Alarm
Power Off
System Trip
Purge Start
Trip Function
Immediate Trip
Alarm Only and Re-Purge
Delay Trip and Re-Purge
Alarm Only
Delay Trip
Purge Flow Method
Continuous Flow
2-Con Flow (IS DV)
2-Con Flow (I/P conv)
Leakage Compensation (IS DV)
Leakage Compensation (I/P conv)
Purge Timing Method
Elapsed Time
Adaptive Flow
F: Parameter Entry *
A: Purge System Status
This screen is the default display for the system and it shows information about the status of the system. Using
the arrow keys to scroll through the menu will display: enclosure pressure, purge flow rate and trip mode.
The bottom line of this display will revert to its default of trip mode after 30 seconds. The display can be fixed
on other parameters using the Enter key. After this, the arrow keys can be used to change the display and the
30 second time out will resume.
B: Language
This menu is used to change the language used to display menu items.
Selection of this display will show the language currently in use. Scroll through the options using the up and
down arrow keys and press enter to select once the desired language is displayed.
The operator password will be required to change the language.
Languages available are English (default), French, German, Spanish, Italian and Norwegian.
C: Settings Display
The Settings Display menu is used to give the operator a view of all the parameters that have been set up for
the purge system in its present configuration. This for display only, it is not possible to change settings in this
menu.
Press the Enter key to select this menu, then use the Up and Down arrow keys to view the settings.
D: Passwords
The passwords menu allows the user to change the passwords used by the system to control access to
various parts of the system. The system uses 3 passwords:
• The Operator Password: required to access the language menu and to modify any of the purging
parameters.
• The Override Password: required to turn on the system override or by-pass function allowing power to be
connected to the protected equipment regardless of the state of the purge system.
• The Maintenance Password is fixed by Expo, and is not available to general users, as this password
controls access to the pressure sensor and flow rate calibration system.
Passwords consist of a 4-digit number, 0000 to 9999. The default value of the Operator and Override
passwords is 0000.
When you are prompted to enter a password, a group of 4 0's will appear on the bottom line of the display.
The first 0 will be flashing. Use the Up and Down keys to change this character to the appropriate value. Press
the Enter key to move on to the next digit. If you make an error, it is possible to “Backspace” by pressing the
Up and Down keys simultaneously.
When changing a password, you will first be prompted to enter the current Password.
You will then be prompted to enter the new password. You will then be asked to confirm the new password.
If the confirmation succeeds, a confirmation message will be displayed, if it fails, an error message will be
displayed, and it will be necessary to repeat the process.
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E: Password Override
This is a software version of a manual override keyswitch. It allows user to switch on the power to the
protected equipment, regardless of the status of the purge system.
This must only be used when the area is known to be hazard free, and typically will require the use of a Hot
Work Permit or similar. You should follow your local work instructions and regulations for such matters.
If a manual override keyswitch is fitted to the system, this will take precedence over the password override.
• If the password override has been used and the manual override is activated, the override can only be
removed manually. It is not possible to use the password in this case.
• All override is cancelled when the Keyswitch override is turned off
• If the Keyswitch override is in use, the password override menu is not available, and a warning message
is shown.
Press Enter to select the Password Override menu. A message will be displayed asking whether the override
should be turned On or Off, depending on the present state of the override. Use the Up key to respond “Yes”
and the Down key to respond "No".
If you are turning the Override On, then you will be prompted to enter the Override Password. Successful entry
of the password will turn the override On.
The password is not required to turn the Override Off.
It is possible to remove the Password Override option from the main menu, by setting the Override Password
to “9999” in the Passwords menu.
Pressing the Menu key will move the user along to the next menu item.
F: Parameter Entry
Requires Operator password to be entered before sub-menu can be accessed.
The Parameter Entry menu allows the user to configure the system to the specific application.
Purge Timing Method
The first sub-menu in the Parameter Entry menu allows the choice of purge timing methods.
Elapsed Time
This option is the traditional timing method. The purge flow is maintained above a
minimum for a set period of time measured in minutes. If the flow drops below the
minimum, the purge time is reset and the purge time will restart.
Adaptive Flow
This method is a cumulative values of true flow rate measured over time. The
system will take into account the time that the flow rate is above the minimum but
below the maximum specified flow rate. If the flow rate falls below minimum the
accumulation of purge volume will stop but the total is not reset. Flow rate above
the maximum is accumulated at the maximum rate. the accumulation is only reset
when the pressure exceeds the limits for the low or high pressure alarms.
ML484 | v11
Page 18
Purge Flow Method
The second sub-menu in the Parameter Entry menu allows the choice between how the flow of purge gas is
to be controlled.
Continuous Flow:
There is no control by the system over the flow of purge air. After the purge has
completed, the system checks for flow above the minimum dilution rate.
Continuous Flow
High Purge, IS Digital
Valve control
A boost is provided by means of an intrinsically safe solenoid valve to allow a
higher flow rate during purging.
Leakage
Compensation with IS
Digital Valve
The purge flow is controlled by an intrinsically safe solenoid valve, and leakage
compensation controlled manually by means of a leakage compensation needle
valve.
Trip Function
The third sub-menu in the Parameter Entry menu allows the choice of action to be taken by the system if the
pressure goes out of the specified range.
Immediate Trip
This option will disconnect the power to the protected equipment as soon as the
enclosure pressure goes out of bounds.
Alarm Only &
Repurge
Alarm Only does not disconnect the power to the protected equipment, but will
activate the appropriate alarm signals. It is possible to turn the power to the
protected equipment off by pressing the Down button on the keypad. A message will
be displayed to ask for confirmation that the power is to be turned off.
Delay Trip &
Repurge
Delay Trip will disconnect the power to the protected equipment after a pre-set
period of time has elapsed after the enclosure pressure goes out of limits. As with
the Alarms Only option, the appropriate alarm signals are activated, and it is possible
to manually turn the power to the protected equipment off by pressing the Down
button on the keypad.
Alarm Only
This will prevent the enclosure being re-purged once pressure is restored after
pressurization failure.
Delay Trip
This will prevent the enclosure being re-purged once pressure is restored after
pressurization failure.
External Alarm
The fourth sub-menu configures the action taken by the system in response to the External Alarm. This is an
IS (Intrinsically Safe Circuit),
Power Off
Choosing power off will cause the system to remove power from the protected
enclosure when the external alarm input is activated. For example, this option could
be used with a thermostat, to prevent over-heating.
System Trip
Choosing system trip will cause the system to act as if a pressure fault had been
detected. The system will trip in accordance with the currently selected trip mode. For
example, this option would be chosen when the input is used to connect additional
pressure switches monitoring the pressurization.
Purge Start
Choosing purge start will inhibit the start of a purge cycle if an external alarm input is
present.
The default condition is “Purge Start”
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ML484 | v11
Alarm 1 & Alarm 2
There are two normally open volt free contacts (Alarm 1 and Alarm 2) that may be configured to give a number
of indications
General Alarm
This is the default function of Alarm 1, and is active whenever the enclosure is not
in a pressurized condition. The contacts close when the enclosure is purged and
pressurized.
Pressure Correct
The status relay is closed when the enclosure pressure is within limits
Pressure NOT
Correct
The status relay is closed when the enclosure pressure is NOT within limits.
Purge In Progress
The status contact closes when the purge flow is above the minimum level. This is
the default function of Alarm 2.
Low Press PreAlarm
The status relay closes when the enclosure pressure falls below the low pressure
pre-alarm setting, giving an early warning of impending loss of pressurization.
Ready to Purge
When the External Alarm option Purge Start has been chosen this Alarm contact will
close to inform the user that purge has not started. This will either be because the
Purge Start signal has not been received or there is insufficient Purge Flow being
measured in the purge air exit valve.
Purge Parameters
The seventh sub-menu will allow the user to enter all the specific details needed to fully configure the
SmartPurge System to the application.
To change the setting use
to select number, then press
when number is correct, this will move you
onto the next setting. Backspace is achieved by pressing the Up and Down buttons simultaneously.
Once the last setting has been set the display will default back to Purge Parameters menu.
Wait 30 seconds or Press
this will return you to the Purge System Status.
The user can escape early from the parameter entry menu after the desired item has been changed by
pressing
. Early escape is only possible provided all the parameters remain consistent with correct
operation.
Note: Not all of the parameters listed below will be relevant to the purging method selected.
in this section the system will suggest some values based on the parameters entered earlier. Where values
are suggested, these values may be adjusted by the user, but only in an upward direction. You cannot use a
value smaller than that suggested by the system.
Enclosure Volume
Enter the volume of the purged enclosure. The volume may be between 1 and
99999 litres.
Number of Vol.
Changes
Enter the number of times you wish the enclosure volume to be changed. The
number of times may be between 1 and 10.
Where the purge air volume has been evaluated by testing, set the number of
changes to 1. The default value is 10.
ML484 | v11
Page 20
Purge Air Volume
The system will suggest a purge air volume based on the Enclosure Volume x
Number of Volume. Changes.
Where the purge air volume has been measured by testing, enter the desired
volume here.
Orifice Diameter
It is possible to select 3 different orifice sizes in order to change the range of flow
rates measured by the system. The default value for orifice diameter is 25mm, and
corresponds to a maximum flow rate during purge of 540 litres per minute.
Two smaller orifice plates are supplied, and are fitted over the air entry into the
SmartPurge. The orifice is secured by two screws. Refer to Table 1
For systems that have been specially factory-configured, an extra orifice diameter
may be selected in this menu. Details of the flow rate for this orifice size will be
recorded in the project specific information section of the manual. Standard
systems will only offer the 3 sizes as detailed in Table 1
Purge Time
Enter the desired purge time, in minutes. A value will be suggested, based on the
purge air volume / minimum purge flow rate.
Minimum Flow Rate
Enter the minimum purge flow rate. The default value suggested will depend upon
the orifice diameter selected.
Maximum Flow Rate
Enter here the maximum purge flow rate. A default value will be suggested, based
on the orifice diameter. (Adaptive Flow Purge Timing only)
Minimum Dilution
Rate
Enter here the minimum dilution rate for the purge flow after the main purge has
completed. (Continuous Flow High Purge methods only)
Low Pressure
Enter the lowest acceptable pressure within the enclosure.
The function of this is to shut power off to the pressurized enclosure due to a loss
of pressure that may allow the entry of hazardous gas or particles.
High Pressure
Enter the highest acceptable pressure within the enclosure.
Enclosures should have a maximum test pressure and it is advised that the High
Pressure is set a below this point.
This will warn the user that higher than expected pressure is present inside the
enclosure.
Low Pressure PreAlarm
Enter the pressure which is above the Low Pressure and below the expected
normal operation pressure of the enclosure. The function of this alarm is to warn
the user that the enclosure pressure is falling to allow for preventative maintenance
to occur.
Enclosure Target
Pressure
Where an I/P supply valve is used the Enclosure Target Pressure is maintained by
the valve after purge complete.
Notes on air volume and purge time parameters:
• The enclosure volume must be larger than 10 litres and smaller than 99999 litres
• The number of purge volume changes must be between 1 and 10.
• The Purge Air Volume is automatically calculated by the system as the enclosure volume x number of
volume changes.
• The user may amend the Purge Air Volume, but only to a larger volume. The maximum volume is 99999
litres.
• The user may select an orifice size from the 3 standard sizes or from the Custom Size, if one has been
configured.
Page 21
ML484 | v11
• The minimum flow rate is automatically calculated as 40% of the maximum flow rate available for the
selected orifice.
• The maximum flow rate is automatically calculated as 80% of the maximum flow rate available for the
selected orifice.
• The user may amend the maximum and minimum flow rates. The system will check that the value for
minimum flow rate is always lower than the value for maximum flow rate. The maximum flow rate cannot
be larger than the maximum flow rate available for the selected orifice.
• The purge time is automatically calculated by the system by dividing the purge air volume by the minimum
flow rate.
• The purge time has a minimum value of 1 minute.
The user can amend the purge time to a larger value than the one calculated by the system.
ML484 | v11
Page 22
Operational Strategies
Page 23
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Page 24
Page 25
ML484 | v11
Notes:
Note 1:
• In elapsed time mode, purge is controlled by the timer
• In adaptive flow mode, purge is controlled by the number of litres of air used
Note 2:
• Purge acknowledge only applies when the parameter Purge Start is set to manual. This message
prompts the user to initiate the purge cycle by pressing the enter button.
Section 9. Maintenance of the System
The maintenance of the system outlined in this manual should be supplemented with any additional
requirements set out in appropriate local codes of practice.
Routine Maintenance
It is recommended that these tasks are carried out annually.
• The system should be checked to ensure that the system generates an alarm when the enclosure
pressure drops below 0.5 mbar minimum.
• The condition of the connections and cable glands should be checked by suitably qualified personnel.
This may be required more frequently depending on environment.
• Re-zeroing of the flow and pressure sensors should be carried out according to the instructions in this
manual.
Re-zeroing of the Flow and Pressure Sensors
If the SmartPurge display shows the error message Pressure Mismatch the zero point of the flow and
pressure sensors must be reset. It is essential to the correct operation of this function that the enclosure is
not pressurized. It is suggested that the best way to ensure this is to perform this operation with the enclosure
door open and the air supply turned off
Carry out re-zeroing as follows:
ML484 | v11
Page 26
Start
Press
Display reads
"Passwords"
3 times
Display reads
"Chg Operator
Passw'd"
Press
Press
Display reads
"Zero Sensors"
until
Display reads
"Operator Password
0000"
Press
Display reads
"Re-Zero flow and
press enter key to
set"
Enter operator
password
Press
key to
re-zero sensors
(press
Press
to cancel)
4 times
to return to main
menu
End
Repairs
If the SmartPurge needs repairs, these should be carried out by an Expo Service Person.
Page 27
ML484 | v11
Section 10. Fault Finding
Symptom
Fault
No display on
the Control
Unit
Low pressure
fault. No
Pressure OK
indication
Solution
Check power to Control Unit.
Check fuse in Control Unit.
If ambient temperature is below -20oC the display may not
be visible.
No air supply
Check air supply is on.
Defective wiring between SmartPurge and Air Supply Unit.
Excessive leakage
Check that all enclosure doors, covers and conduit or cable
entries are sealed and that the enclosure is of an airtight
construction. Improve sealing using closed cell foam strip or
suitable sealant.
Low air supply pressure
Open leakage compensation valve (where fitted) to provide
more leakage compensation air flow
Increase the air supply pressure
Ensure atmospheric pressure is referenced.
No Purge in
Progress
indication
Insufficient air supply
Check that when the purge is flowing that the pressure at the
air inlet is greater than the value shown in Table 1.
Check air supply and piping for correct sizing and excessive
restrictions.
Excessive enclosure
leakage during purging
Purge timer
does not time
out
Seal leaks as above
Elapsed Time Purging:
Purge flow drops during purge sequence (the purge timer
resets to zero if purge flow is lost at any time during purge).
Check air supply capacity. Increase air supply pressure or
select a lower minimum flow threshold.
Adaptive Flow Purging:
The purge accumulation process will stop if the purge flow
drops below the minimum setting. Increase the air supply
pressure, or select a lower minimum purge flow threshold.
High pressure
fault indication
ML484 | v11
SmartPurge air outlet is
restricted or blocked.
Unblock
Purge flow is too high
Reduce supply pressure.
Page 28
Section 11. Recommended Spares List
Part Number
Description
SP2-DV
Intrinsically safe solenoid valve, switches between the purge flow and
leakage compensation flow rate.
Section 12. Drawings and Diagrams
Title
Drawing Number
Sheet Numbers
Control Unit Drawing
XMA-STD0-001
1
External Mounting Dimensions
2
Remote Panel Mounting
3
SmartPurge 2 Internal Components
4
Line Fault Detection Connector assembly
5
SmartPurge 2 Wiring Layout
6
SmartPurge2 SDV Assembly
7
SmartPurge2 Assembly and Cutouts
8
SmartPurge 2 controller and Digital Valve Cutout
9
SmartPurge 2 Hook up
10
SmartPurge 2 Intrinsically Safe Control Drawing
USS
SD8112
11
SmartPurge 2 Intrinsically Safety Control Drawing
Canada
SD8113
12
Section 13 Certificates
Component
Certificate
Number
SmartPurge Control Unit
IECEx
IECEx FME 11.0006
ATEX
FM11ATEX0060
FM (USA)
3036907
FM (Canada)
3036907C
SIL 2 Rating
ESC
A127_CT001_(2.0)
IS SOV
IECEx
IECEx INE 10 0002X - 0
ATEX
INNERIS-03--ATEX-0249-X
Page 29
ML484 | v11
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9.
8. TERMINAL BLOCKS TERMINAL TIGHTENING TORQUES:
NON INTRINSICALLY SAFE: 0.4 - 0.5 Nm
INTRINSICALLY SAFE TB1: 0.22 - 0.25 Nm
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SAFE CIRCUIT AND THAT OF ANY CORE OF A NON-INTRINSICALLY SAFE CIRCUIT
SHALL BE IN ACCORDANCE WITH IEC 60079-11 TABLE 5 COLUMN 4 (FOR 375V THIS
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- THE CORES OF EITHER THE INTRINSICALLY SAFE OR THE NON-INTRINSICALLY SAFE
CIRCUIT ARE ENCLOSED IN AN EARTH SCREEN, OR
- THE INSULATION OF THE INTRINSICALLY SAFE CORES IS CAPABLE OF
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THE INTRINSICALLY SAFE CIRCUIT WITH A MINIMUM OF 500 V.
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CONDUCTORS OF INTRINSICALLY SAFE CIRCUITS SHALL NOT BE CARRIED IN THE
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FIT 10K 0.25W RESISTOR IN PLACE OF OVERRIDE SWITCH WHEN NOT REQUIRED.
2.
4.
FUSE RATING:
AC SUPPLY: 100 mA
DC SUPPLY 500mA
1.
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N.O. CONTACT
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REFER TO HANDBOOK
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ALARM CIRCUIT 2
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14/10/2013
APPROVED DATE
MH
APPROVED
MH
APP'D
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13/08/2013 MATERIAL
DRAWING STATUS:
DRAWN DATE:
405.1
8.465
CUSTOMER:
SMART PURGE 2
INTRINSIC SAFETY CONTROL DRAWING
JOB No:
TITLE
0.48
Li (mH)
SURREY TW16 5DB
EXTERNAL
EARTH
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Expo Technologies Limited UNITED KINGDOM
EQUIPOTENTIAL
EARTH BONDING
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Ui (Vdc)
SMART PURGE 2 REMOTE PANEL
ENERGY LIMITATION PARAMETERS
SP2-RP FOR REMOTE PANEL
TERMINALS 1, 2, 3 AND 4
2 TWIST2ED PAIRS OVER SHIELDED
0.75mm MIN CONDUCTOR SIZE
MAX LOOP IMPENDENCE 15Ÿ
SHIELD CONNECTED TO GROUND
AT BOTH ENDS OF CABLE
CABLE MAXIMUM LENGTH IS 50 METRES
2:1
REV:
SHEET No.
1
OF
SD8112
DRAWING No.
SCALE
0.857
Pi (W)
HAZARDOUS (CLASSIFIED) LOCATION
CLASS I ZONE 1 AS PER NEC 505
1
01
The contents of this drawing / document are Copyright © Expo Technologies Limited. They are to be treated as confidential
and are returnable upon request. They are not to be copied or communicated in part or in whole without written consent
from Expo Technologies Limited, neither are they to be used in any way against our interests.
Vmax or Ui>Vt;lmax or li > lt; (Ci of all loops or Ccable) <Ca or Co; (Li of all loops + Lcable) <La or Lo;
Pmax or Pi>Po
2.
The configuration of associated Apparatus must be FM Approved under Entity Concept.
3.
I.S. Equipment must be FM Approved.
4.
I.S. Equipment may be installed within the Hazardous (Classified) location for which it is approved.
5.
I.S. Barrier or Equipment and hazardous location loop apparatus manufacturer's control drawings must be
followed when installing a system.
6.
Control equipment connected to the Associated Apparatus must not generate more than 250 Vrms or Vdc.
7.
Installation should be in accordance with ANSI/ISA RP12.06.01 "Installation of Intrinisically safe systems
for Hazardous (Classified) Locations" and the National Electrical Code®(ANSI/NFPA 70)
8.
No revision to this drawing is permitted without FM Approval.
9.
AEx '[ib]' is suitable only for connecting to Class I Zone 1 Hazardous (Classified) Locations and not Class I,
Zone 0, or Class I, Division 1 Hazardous (Classified) Locations.
10.
All Equipment installed in Class I Zone 1 hazardous area.
11.
The cores of the intrinsically safe circuits are either in an earth screen or the insulation of the intrinsically
safe cores is capable of withstanding an R.M.S A.C. test voltage of 2000 V
12.
User supplied equipment shall be FM approved.
1.
REV.
3rd ANGLE
PROJECTION
Page 41
ML484 | v11
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TITLE
Expo Technologies Limited UNITED KINGDOM
0.48
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HAZARDOUS LOCATION
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2:1
REV:
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1
OF
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DRAWING No.
SCALE
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Pi (W)
1
E
The contents of this drawing / document are Copyright © Expo Technologies Limited. They are to be treated as confidential
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9,10,11,12
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SMART PURGE 2 CONTROL UNIT
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2.
The configuration of associated Apparatus must be FM Approved or CSA Certified when installed in Canada
under Entity Concept.
3.
Smart Purge 2 May be installed within the Hazardous location for which it is approved.
4.
Installation in Canada should be in accordance with the Canadian Electrical Code, CSA C22.1, Part 1,
Appendix F.
5.
No revision to this drawing is permitted without FM Approval.
6.
I.S. Equipment may be installed within the Hazardous location for which it is approved.
7.
I.S. Barrier or Equipment and hazardous location loop apparatus manufacturer's control drawings must be
followed when installing a system.
8.
All Equipment is installed in Class I Zone 1 hazardous area
9.
The cores of the intrinsically safe circuits are either in an earth screen or the insulation of the intrinsically
safe cores is capable of withstanding an R.M.S A.C. test voltage of 2000 V
10.
User supplied equipment shall be FM approved or CSA certified
1.
3rd ANGLE
PROJECTION
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/;B1>10.E@45?/1>@525/-@1C-?-??1??10-:02;A:0@; /;9<8EC5@4@41D$A-85@E?E?@19>1=A5>191:@?'45?
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Page 43
ML484 | v11
-@1;2??A1
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@412;88;C5:3-<;C1>?A<<8E-:0?C5@/45:39;0A81-28;C-:0<>1??A>191-?A>5:3A:5@-:0-:181/@>;:5//;:@>;8A:5@
05?<8-E5?<>;B50102;>9;:5@;>5:3@41?@-@A?-:02;>A?10A>5:3?1@A< 'C;B1>?5;:?;2@41&9->@#A>31->1-B-58-.81
-?-<A>31-:0<>1??A>5F1/;:@>;8A:5@#-:0-?2-:/;:@>;8A:5@;@4@41?1B1>?5;:?->1-B-58-.81C5@415@41>
?@-5:81???@118??;>-8A95:5A91:/8;?A>1?-8-:0C5@4-A:5B1>?-8B;8@-31 ;>-8;CB;8@-31<;C1>?A<<8E '41
?E?@19/-:.1/;::1/@10@;-:;<@5;:-8%19;@1#-:18C45/45?4;A?105:-:-8A95:5A91:/8;?A>1
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D 1>@525/-@1!;
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D 0.48
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5.145
0.857
405.1
8.465
2.9
2.9
0.48
0
0
Lo (mH)
#-31 ;2 ??A1!; 1, 2
23.58
165.5
0.091
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23.58
165.5
0.091
9, 10, 11, 12
8.465
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5.145
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5.88
5.9
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7, 8
5.88
5.9
Negligible
!/%3563+)
63+) )/15)%0).&%# :1>3E595@-@5;:<->-91@1>?
Ui (Vdc)
Ii (mA)
Ci ( F)
Li (mH)
SOV
IP
Remote Output
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-
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/
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0.975
0.975
0.857
0.009
0.009
ML484 | v11
Page 44
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Page 45
ML484 | v11
Address of Applicant:
This equipment or protective system and any acceptable variation thereto is specified in the schedule to this
certificate and documents therein referred to.
FM Approvals Ltd, notified body number 1725 in accordance with Article 9 of Directive 94/9/EC of 23 March
1994, certifies that this equipment has been found to comply with the Essential Health and Safety Requirements
relating to the design and construction of equipment intended for use in potentially explosive atmospheres given
in Annex II to the Directive.
6
7
8
This EC-Type Examination certificate relates only to the design, examination and tests of the specified
equipment or protective system in accordance to the directive 94/9/EC. Further requirements of the Directive
apply to the manufacturing process and supply of this equipment or protective system. These are not covered by
this certificate.
The marking of the equipment or protective system shall include:
11
12
90-254 Vac or 11-28 Vdc;
Um = 254 Vac
Uo (Vdc)
23.58
23.58
8.465
5.88
5.88
Ci (ȝF)
5.145
Io (mA)
165.5
165.5
405.1
5.9
5.9
Li (mH)
0.48
Co (ȝF)
0.091
0.091
5.145
Negligible
Negligible
Po (W)
0.975
0.975
0.857
0.009
0.009
Pi (W)
0.857
F ATEX 020 (May/12)
Page 2 of 3
THIS CERTIFICATE MAY ONLY BE REPRODUCED IN ITS ENTIRETY AND WITHOUT CHANGE
F ATEX 020 (May/12)
Page 1 of 3
Lo (mH)
2.9
2.9
0.48
0
0
The relevant EHSRs that have not been addressed by the standards listed in this certificate have been identified
and assessed in the confidential report identified in item 8.
Essential Health and Safety Requirements:
None
Specific Conditions of Use:
SmartPurge2 Purge Remote Panel
SRP-2
Energy Limitation Parameters
Ui (Vdc)
Ii (mA)
8.465
405.1
Energy Limitation Parameters
Terminal TB1
SOV
1, 2
IP
3, 4
Remote Output 9, 10, 11, 12
External alarm
5, 6
Over-ride
7, 8
Alarm Contact ratings (Terminals 5, 6 and 7, 8): 250V, 1A
Fuse type (Terminals 9, 10):
100mA (when b = M)
500mA (when b = L)
Power Supply (Terminals 1, 2):
SP2-ab-c SmartPurge2 Purge Control Unit
a=
P, or F
b=
M, or L
c=
ss, or al
The maximum service temperature is 60°C.
The system can be connected to an optional Remote Panel which is housed in an aluminium enclosure.
Two versions of the SmartPurge2 are available, as a purge and pressurize control unit (P) and as a fan
control unit (F). Both these versions are available with either stainless steel (ss) or aluminium enclosures
(al) and with a universal voltage (M) or a low voltage (L) power supply.
The SmartPurge 2 (SP2) is an electronic purge and pressurization control system consisting of a Control
Unit containing the following: a power supply and switching module, a flow and pressure measuring unit and
an electronic control unit. A display is provided for monitoring the status and for use during set-up.
Description of Equipment or Protective System:
FM Approvals Ltd. 1 Windsor Dials, Windsor, Berkshire, UK. SL4 1RS
T: +44 (0) 1753 750 000 F: +44 (0) 1753 868 700 E-mail: atex@fmapprovals.com www.fmapprovals.com
15
14
13
to EC-Type Examination Certificate No. FM11ATEX0060
SCHEDULE
FM Approvals Ltd. 1 Windsor Dials, Windsor, Berkshire, UK. SL4 1RS
T: +44 (0) 1753 750 000 F: +44 (0) 1753 868 700 E-mail: atex@fmapprovals.com www.fmapprovals.com
THIS CERTIFICATE MAY ONLY BE REPRODUCED IN ITS ENTIRETY AND WITHOUT CHANGE
Issue date: 2nd April, 2013
Nicholas Ludlam
Deputy Certification Manager, FM Approvals Ltd.
Digitally signed by Nicholas Ludlam
DN: cn=Nicholas Ludlam, o=Deputy
Certification Manager, ou=FM Approvals,
email=nicholas.ludlam@fmapprovals.co
m, c=GB
Date: 2013.04.02 15:40:09 +01'00'
II 2 G Ex ib IIC T4 -20°C ” Ta ” 60°C
SmartPurge 2 Remote Control Terminal
II 2 (2) D Ex tb [pD] IIIC 135°C -20°C ” Ta ” 60°C
II 2 (2) G Ex e ib mb [p] IIC T4 -20°C ” Ta ” 60°C
SmartPurge2 Purge Control Unit
If the sign ‘X’ is placed after the certificate number, it indicates that the equipment is subject to special
conditions for safe use specified in the schedule to this certificate.
EN60079-0:2009, EN60079-2:2007, EN60079-7:2007, EN60079-11:2007, EN60079-18:2009,
EN60079-31:2009, EN61241-4:2006 and EN60529:1991 + A1:2000
Compliance with the Essential Health and Safety Requirements, with the exception of those identified in item 15
of the schedule to this certificate, has been assessed by compliance with the following documents:
3041589EC dated 23 March 2012
The examination and test results are recorded in confidential report number:
Unit 2, The Summit,
Hanworth Road,
Sunbury on Thames,
Surrey, TW16 5DB, United Kingdom
Expo Technologies Limited
10
9
Name of Applicant:
5
SmartPurge2 Purge Control Unit
Equipment or protective system:
(Type Reference and Name)
4
FM11ATEX0060
EC-Type Examination Certificate No:
Explosive Atmospheres - Directive 94/9/EC
Equipment or Protective systems intended for use in Potentially
EC-TYPE EXAMINATION CERTIFICATE
3
2
1
Certificate of Conformity to IEC 61508
Safety Integrity Level (SIL) 2
Functional Safety of Safety-Related Programmable Electronic Systems
The ‘SmartPurge ATEX Certified Intelligent Purge and Pressurise
System SP2’
Designed and manufactured by
Expo Technologies Ltd
Summer Road, Thames Ditton, Surrey, KT7 0RH, UK
The above system has been assessed and is considered capable for use in a SIL2 high
demand safety function. The assessment was based on the assumptions and data provided
in:
•
ESC Ltd Report No. A127_SV001_(2.0)
The system assessed comprises of the following modules in full redundant configuration:
•
Pressure Transmitter
•
Logic Board
•
Relay
With the output normally energised, de-energise to safe state, the estimated frequency of
dangerous failure per hour is 2.2E-7 (providing a minimum proof test interval of 1 year);
The assessment was carried out to determine compliance with IEC 61508 with regards to:
•
Random Hardware Failures;
•
Minimum Architecture.
Managing Director: Kenneth G L Simpson
Member of IEC61508 and IEC 61511 committees
Assessment Date: August 2011
[Certificate: A127_CT001_(2.0)]
(QJLQHHULQJ6DIHW\&RQVXOWDQWV
&ROOLQJKDP+RXVH*ODGVWRQH5RDG:LPEOHGRQ/RQGRQ
6:477HOHSKRQH
(0DLOLQIR#HVFXNQHW:HEVLWHZZZHVFXNQHW
ML484 | v11
Page 46
Page 47
ML484 | v11
ML484 | v11
Page 48
Page 49
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Page 50
Page 51
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Page 52
Page 53
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Page 54
P0 (W)
0.975
0.975
0.857
0.009
0.009
L0 (mH)
2.9
2.9
0.48
0
0
FM Approvals HLC 5/13
Page 1 of 3
3047764
To verify the availability of the Approved product, please refer to www.approvalguide.com
SP2-ab-c SmartPurge2 Purge Control Unit
I/1/AEx e ib mb [p] IIC T4 -20°C ≤ Ta ≤ 60°C; - SD8112; Entity; IP64
21/AEx tb [pD] IIIC T135°C -20°C ≤ Ta ≤ 60°C; - SD8112; Entity; IP64
a = P or F, System type
b = M or L, Supply voltage
c = ss or al, Enclosure material
Entity parameters
Terminal
U0
I0 (mA)
C0 (μF)
TB1
(Vdc)
SOV
1,2
23.58
165.5
0.091
IP
3,4
23.58
165.5
0.091
Remote
9,10,11,12
8.465
405.1
5.145
Output
External
5,6
5.88
5.9
Negligible
alarm
Over-ride
7,8
5.88
5.9
Negligible
This certificate is issued for the following equipment:
HAZARDOUS (CLASSIFIED) LOCATION ELECTRICAL EQUIPMENT
CERTIFICATE OF COMPLIANCE
FM Approvals
1151 Boston Providence Turnpike
P.O. Box 9102 Norwood, MA 02062 USA
T: 781 762 4300 F: 781-762-9375 www.fmapprovals.com
Ci (μF)
5.145
Li (mH)
0.48
Pi (W)
0.857
Expo Technologies Ltd
Sunbury on Thames, Surrey United Kingdom
FM Approved for:
The SmartPurge2 Purge Control Unit is FM Approved for Class I, Zone 1, AEx e ib mb [p] IIC
and Zone 21, AEx tb[pd] IIIC hazardous (classified) locations. (indoors/outdoors; IP64) for the
United States when installed as per control drawing SD8112. The SmartPurge2 Remote
Control Terminal is FM Approved for Class I, Zone 1, AEx ib IIC T4 Hazardous (Classified)
Locations. (indoors/outdoors; IP64) for the United States when installed as per control drawing
SD8112.
Equipment Ratings:
Entity parameters
Ui (Vdc)
Ii(mA)
8.465
405.1
SP2-RP SmartPurge2 Remote Control Terminal
I/1/AEx ib IIC T4 -20°C ≤ Ta ≤ 60°C; - SD8112; Entity
Page 55
ML484 | v11
2011
2005
2004
2004
2009
2010
2008
2009
2009
2009
Date
10 January 2014
FM Approvals HLC 5/13
Page 3 of 3
3047764
To verify the availability of the Approved product, please refer to www.approvalguide.com
J.E. Marquedant
Group Manager, Electrical
FM Approvals LLC
Date
Approval Granted: January 10, 2014
Subsequent Revision Reports / Date Approval Amended
Report Number
Date
Report Number
Original Project ID: 3047764
Class 3620
Class 3810
ANSI/ISA 61010-1
ANSI/IEC 60529
ANSI/ISA 60079-0
ANSI/ISA 60079-2
ANSI/ISA 60079-7
ANSI/ISA 60079-11
ANSI/ISA 60079-18
ANSI/ISA 60079-31
This certifies that the equipment described has been found to comply with the following
Approval Standards and other documents:
5.88
5.88
5,6
7,8
5.9
5.9
165.5
165.5
405.1
I0 (mA)
Negligible
Negligible
0.091
0.091
5.145
C0 (μF)
0
0
2.9
2.9
0.48
L0 (mH)
0.009
0.009
0.975
0.975
0.857
P0 (W)
FM Approvals HLC 5/13
Page 1 of 3
3047764C
To verify the availability of the Approved product, please refer to www.approvalguide.com
SOV
IP
Remote
Output
External
alarm
Over-ride
U0
(Vdc)
23.58
23.58
8.465
Terminal
TB1
1,2
3,4
9,10,11,12
Entity parameters
SP2-ab-c SmartPurge2 Purge Control Unit
I/1/Ex e ib m [p] IIC T4 -20°C ≤ Ta ≤ 60°C;-SD8113; Entity; IP64
a = P or F, System type
b = M or L, Supply voltage
c = ss or al, Enclosure material
This certificate is issued for the following equipment:
HAZARDOUS LOCATION ELECTRICAL EQUIPMENT
PER CANADIAN REQUIREMENTS
CERTIFICATE OF COMPLIANCE
FM Approvals
1151 Boston Providence Turnpike
P.O. Box 9102 Norwood, MA 02062 USA
T: 781 762 4300 F: 781-762-9375 www.fmapprovals.com
ML484 | v11
Page 56
Ci (μF)
5.145
Li (mH)
0.48
Pi (W)
0.857
FM Approvals HLC 5/13
Page 2 of 3
3047764C
To verify the availability of the Approved product, please refer to www.approvalguide.com
Expo Technologies Ltd
Sunbury on Thames, Surrey United Kingdom
FM Approved for:
The SmartPurge2 Purge Control Unit is FM Approved for Class I, Zone 1, Ex e ib m [p] IIC
Hazardous Locations (indoors/outdoors; IP64) for Canada when installed as per control drawing
SD8113. The SmartPurge2 Remote Control Terminal is FM Approved for Class I, Zone 1, Ex ib
IIC T4 Hazardous Locations for Canada when installed as per control drawing SD8113.
Equipment Ratings:
Entity parameters
Ui (Vdc)
Ii(mA)
8.465
405.1
SP2-RP SmartPurge2 Remote Panel
I/1/Ex ib IIC T4 -20°C ≤ Ta ≤ 60°C;- SD8113; Entity
2004
2010
2011
2012
2012
2011
2012
Date
10 January 2014
FM Approvals HLC 5/13
Page 3 of 3
3047764C
To verify the availability of the Approved product, please refer to www.approvalguide.com
J.E. Marquedant
Group Manager, Electrical
FM Approvals LLC
Date
Approval Granted: January 10, 2014
Subsequent Revision Reports / Date Approval Amended
Report Number
Date
Report Number
Original Project ID: 3047764C
CSA C22.2 No.1010.1
CSA C22.2 No.60529
CAN/CSA E60079-0
CAN/CSA E60079-2
CAN/CSA E60079-7
CAN/CSA E60079-11
CAN/CSA E 60079-18
This certifies that the equipment described has been found to comply with the following
Approval Standards and other documents:
With
European
Directives
Declaration of
Conformity
Expo Technologies Ltd
Unit 2, The Summit, Hanworth Road
Sunbury on Thames TW16 5DB UK
This document confirms that the SmartPurge 2 Purge Control Unit
manufactured by Expo Technologies Ltd conforms,
as described, to the following European Directives and standards:
Product description
The SmartPurge 2 (SP2) is an electronic purge and pressurization control system consisting of a
Control Unit containing the following: a power supply and switching module, a flow and pressure
measuring unit and an electronic control unit. A display is provided for monitoring the status and for
use during set-up. Two versions of the SmartPurge2 are available, as a purge and pressurize
control unit and as a fan control unit. Both these versions are available with either stainless steel or
aluminium enclosures and with a universal voltage or a low voltage power supply.
Directive 2004/108/EC Electromagnetic Compatibility (EMC)
The SmartPurge 2 system described above is in conformity with Directive 2004/108/EC.
Intertek technical report EM11055661 shows compliance with the essential requirements of the
directive.
Directive 2011/65/EC Restriction of the use of certain hazardous substances (RoHS)
The SmartPurge 2 system described above is in conformity with Directive 2011/65/EU.
All electrical or electronic components used by Expo Technologies Ltd or our suppliers are RoHS
compliant.
Directive 94/9/EC Equipment for explosive atmospheres (ATEX)
The SmartPurge 2 system described above is designed in conformity with ATEX Directive
94/9/EC, in compliance with:
EN 60079-0:2012+A11:2013
EN 60079-2:2014
EN 60079-7:2007
EN 60079-11:2012
EN 60079-18:2009
EN 60079-31:2014
EN 60529:1992+A2:2013
The SmartPurge 2 is certified by FM Approvals Ltd, Windsor, Berkshire, UK. SL4 1RS, under EC
Type Examination Certificate FM11ATEX0060, in compliance with:
EN 60079-0:2009
EN 60079-2:2007
EN 60079-7:2007
EN 60079-11:2007
EN 60079-18:2009
EN 60079-31:2009
EN61241-4:2006
EN 60529:1991 + A1:2000
SmartPurge systems are manufactured under Product Quality Assurance
SIRA 99 ATEX M043, issued by SIRA Certification Service, Notified Body No. 0518.
Signed
Managing Director
Notification
Date 29/05/2015
Confidential Assessment file reference SC029
Smartpurge2 CE SC029 Iss 4.Docx3
Page 57
ML484 | v11
Expo Technologies Ltd.
Unit 2 The Summit
Hanworth Road
Sunbury on Thames
TW16 5DB
UK
Expo Technologies Inc.
9140 Ravenna Road Unit #3
Twinsburg
OH 44087
USA
Tel:
Fax:
E-mail:
+44(0)20 8398 8011
+44(0)20 8398 8014
sales@expoworldwide.com
Tel:
Fax:
E-mail:
+1 (440) 247 5314
+1 (330) 487 0611
sales.na@expoworldwide.com
www.expoworldwide.com
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