ABB 265GS User manual

Operating Instruction
IM/265Gx/Ax-EN-07
Pressure Transmitte
r
265Gx, 265Ax
Models 265GS/GC/GM/GG/GJ/GN/GR/Gx
Models 265AS/AC/AM/AG/AJ/AN/AR/Ax

Blinder Text
2 265Gx, 265Ax IM/265Gx/Ax-EN-07
Pressure Transmitter
265Gx, 265Ax
Operating Instruction
IM/265Gx/Ax-EN-07
08.2011
Translation of the original instruction
Manufacturer:
ABB Automation Products GmbH
Schillerstraße 72
32425 Minden
Germany
Tel.: [phone]
Fax: [phone]
Customer service center
Phone: [phone]
Fax: [phone]-29031
[email protected]
© Copyright 2011 by ABB Automation Products GmbH
Subject to changes without notice
This document is protected by copyright. It assists the user in safe and efficient operation of the device. The contents of this
document, whether whole or in part, may not be copied or reproduced without prior approval by the copyright holder.
Contents

Contents
IM/265Gx/Ax-EN-07 265Gx, 265Ax 3
1Safety.............................................................................................................................................................6
1.1 General information and notes for the reader ................................................................................................6
1.2 Intended use...................................................................................................................................................6
1.3 Technical limit values .....................................................................................................................................6
1.4 Improper use ..................................................................................................................................................7
1.5 Target groups and qualifications ....................................................................................................................7
1.6 Warranty provisions........................................................................................................................................7
1.7 Plates and symbols ........................................................................................................................................8
1.7.1 Safety-/ warning symbols, note symbols.................................................................................................8
1.8 Name plate .....................................................................................................................................................9
1.8.1 Compliance with Pressure Equipment Directive (97/23/EC) ................................................................11
1.9 Transport and storage..................................................................................................................................12
1.10 Safety instructions for electrical installation .................................................................................................12
1.11 Safety information for inspection and maintenance .....................................................................................12
1.12 Returning devices.........................................................................................................................................13
1.13 Integrated management system...................................................................................................................13
1.14 Disposal........................................................................................................................................................13
1.14.1 Information on WEEE Directive 2002/96/EC (Waste Electrical and Electronic Equipment).................13
1.14.2 RoHS Directive 2002/95/EC .................................................................................................................14
2Use in potentially explosive atmospheres...............................................................................................15
2.1 Type-examination certificate/Declaration of conformity ...............................................................................15
2.2 Type of protection "intrinsic safety Ex i" .......................................................................................................15
2.3 Use in areas with combustible dust..............................................................................................................16
2.4 Category 3 for use in "Zone 2" .....................................................................................................................16
2.5 Type of protection "flameproof enclosure Ex d" ...........................................................................................17
2.6 Type of protection "intrinsic safety i", "flameproof enclosure d", "protection by enclosure tD", and "non-
sparking nA" .................................................................................................................................................18
2.7 Canadian Standards Association (CSA): "Explosion-proof" ........................................................................18
2.8 Aspects of "Ex safety" and "IP protection" for Australian applications.........................................................19
3Design and function...................................................................................................................................21
3.1 Principle of operation and construction........................................................................................................22
4Mounting .....................................................................................................................................................25
4.1 General.........................................................................................................................................................25
4.2 IP designation...............................................................................................................................................25
4.3 Pressure transmitter .....................................................................................................................................26
4.4 Sealing and screw connections....................................................................................................................26
4.5 Moisture........................................................................................................................................................27
4.6 Impulse line ..................................................................................................................................................27
5Electrical connections ...............................................................................................................................28
5.1 Cable connection..........................................................................................................................................28
5.2 Electrical connection in the cable connection area ......................................................................................29
5.3 Electrical connection with plug .....................................................................................................................31
5.4 Assembling and connecting the socket connector.......................................................................................32
5.5 Protective conductor / Grounding.................................................................................................................33
5.6 Integrated lightning protection (optional)......................................................................................................33
5.7 Communication setup...................................................................................................................................34
5.8 Connecting cable..........................................................................................................................................36

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4 265Gx, 265Ax IM/265Gx/Ax-EN-07
5.9 PROFIBUS PA pressure transmitter ............................................................................................................37
6Commissioning ..........................................................................................................................................38
6.1 Output signal ................................................................................................................................................39
6.2 Write protection ............................................................................................................................................39
6.3 Correcting the lower range value / zero shift................................................................................................40
6.4 Turning the housing in relation to the measuring equipment.......................................................................41
6.5 Installing / Removing the button unit ............................................................................................................41
6.6 Installing / Removing the LCD display .........................................................................................................42
6.7 Securing the housing cover with Ex d ..........................................................................................................44
6.8 Sensor ventilation.........................................................................................................................................45
6.9 Operation......................................................................................................................................................46
6.9.1 Operation using the control buttons on the transmitter.........................................................................46
7Configuration..............................................................................................................................................47
7.1 Factory settings ............................................................................................................................................47
7.1.1 Transmitter with HART communication and 4 … 20 mA output current...............................................47
7.1.2 Transmitter with PROFIBUS PA communication..................................................................................48
7.1.3 Transmitter with FOUNDATION Fieldbus communication....................................................................49
7.2 Configuration types ......................................................................................................................................49
7.3 Configuring the parameters without an LCD display....................................................................................50
7.4 Configuration with the LCD display ..............................................................................................................52
7.4.1 Offset shift (OFFSET SHIFT)................................................................................................................53
7.4.2 Damping (DAMPING)............................................................................................................................54
7.4.3 Characteristic (FUNCTION) ..................................................................................................................54
7.4.4 Fieldbus address (ADDRESS)..............................................................................................................54
7.5 Layout and contents of the LCD display ......................................................................................................55
7.5.1 Displaying a physical value...................................................................................................................55
7.5.2 Menu structure ......................................................................................................................................57
7.6 Menu-controlled pressure transmitter programming ....................................................................................59
7.6.1 Parameter description...........................................................................................................................60
7.7 Configuration with the PC / laptop or handheld terminal..............................................................................62
7.8 Configuration with the graphical user interface (DTM).................................................................................64
7.8.1 System requirements ............................................................................................................................64
7.8.2 Setting the damping value ....................................................................................................................65
7.8.3 Correcting the zero shift........................................................................................................................65
7.8.4 Setting the lower and upper range limit values.....................................................................................65
8Ex relevant specifications .........................................................................................................................66
8.1 Potentially explosive atmospheres...............................................................................................................66
9Specifications .............................................................................................................................................70
9.1 Functional specifications ..............................................................................................................................70
9.2 Operating limits ............................................................................................................................................71
9.3 Pressure limits..............................................................................................................................................71
9.4 Environmental limits .....................................................................................................................................72
9.5 Electrical data and options ...........................................................................................................................72
9.6 Measuring accuracy .....................................................................................................................................74
9.7 Operating influences ....................................................................................................................................74
9.8 Technical specification .................................................................................................................................75
9.9 Mounting dimensions (not design data) .......................................................................................................76
9.9.1 Pressure transmitter with barrel housing ..............................................................................................76

Contents
IM/265Gx/Ax-EN-07 265Gx, 265Ax 5
9.9.2 Pressure transmitter with DIN housing .................................................................................................77
9.9.3 Pressure transmitter with front-bonded diaphragm (barrel housing) ....................................................78
9.9.4 Pressure transmitter with ball valve connection (barrel housing) .........................................................79
9.9.5 Mounting with bracket for barrel housing (option).................................................................................80
9.9.6 Mounting with bracket for DIN housing (option)....................................................................................81
10 Maintenance / Repair .................................................................................................................................82
10.1 Removal .......................................................................................................................................................83
10.1.1 Removing the electronics......................................................................................................................83
10.1.2 Screw torques for the process connection............................................................................................83
11 Appendix .....................................................................................................................................................84
11.1 Approvals and certifications .........................................................................................................................84
12 Index ............................................................................................................................................................87

Safety
6 265Gx, 265Ax IM/265Gx/Ax-EN-07
1 Safety
1.1 General information and notes for the reader
You must read these instructions carefully prior to installing and commissioning the device.
These instructions are an important part of the product and must be kept for future reference.
These instructions are intended as an overview and do not contain detailed information on all
designs for this product or every possible aspect of installation, operation and maintenance.
For additional information or if specific problems occur that are not discussed in these
instructions, contact the manufacturer.
The content of these instructions is neither part of any previous or existing agreement, promise
or legal relationship nor is it intended to change the same.
This product is built based on state-of-the-art technology and is operationally safe. It has been
tested and left the factory in perfect working order from a safety perspective. The information in
the manual must be observed and followed in order to maintain this state throughout the period
of operation.
Modifications and repairs to the product may only be performed if expressly permitted by these
instructions.
Only by observing all of the safety instructions and all safety/warning symbols in these
instructions can optimum protection of both personnel and the environment, as well as safe and
fault-free operation of the device, be ensured.
Information and symbols directly on the product must be observed. They may not be removed
and must be fully legible at all times.
1.2 Intended use
265A pressure transmitters measure the absolute pressure and 265G pressure transmitters the
gauge pressure or level of gases, vapors, and liquids. For information on measuring ranges and
permissible overload, refer to the section "Technical data".
1.3 Technical limit values
The device is designed for use exclusively within the values stated on the name plate and within
the technical limit values specified on the data sheets.
The following technical limit values must be observed:
• The permitted pressure may not be exceeded.
• The maximum operating temperature may not be exceeded.
• The permitted operating temperature may not be exceeded.
• The housing protection type must be observed.

Safety
IM/265Gx/Ax-EN-07 265Gx, 265Ax 7
1.4 Improper use
It is prohibited to use the device for the following purposes:
• As a climbing aid, e.g., for mounting purposes
• As a support for external loads, e.g., as a support for pipes, etc.
• Adding material, e.g., by painting over the name plate or welding/soldering on parts
• Removing material, e.g., by drilling the housing.
1.5 Target groups and qualifications
Installation, commissioning, and maintenance of the product may only be performed by trained
specialist personnel who have been authorized by the plant operator to do so. The specialist
personnel must have read and understood the manual and comply with its instructions.
Prior to using corrosive and abrasive materials for measurement purposes, the operator must
check the level of resistance of all parts coming into contact with the materials to be measured.
ABB Automation Products GmbH will gladly support you in selecting the materials, but cannot
accept any liability in doing so.
The operators must strictly observe the applicable national regulations with regards to
installation, function tests, repairs, and maintenance of electrical products.
1.6 Warranty provisions
Using the device in a manner that does not fall within the scope of its intended use, disregarding
this instruction, using underqualified personnel, or making unauthorized alterations releases the
manufacturer from liability for any resulting damage. This renders the manufacturer's warranty
null and void.

Safety
8 265Gx, 265Ax IM/265Gx/Ax-EN-07
1.7 Plates and symbols
1.7.1 Safety-/ warning symbols, note symbols
DANGER – <Serious damage to health / risk to life>
This symbol in conjunction with the signal word "Danger" indicates an imminent danger.
Failure to observe this safety information will result in death or severe injury.
DANGER – <Serious damage to health / risk to life>
This symbol in conjunction with the signal word "Danger" indicates an imminent electrical
hazard. Failure to observe this safety information will result in death or severe injury.
WARNING – <Bodily injury>
This symbol in conjunction with the signal word “Warning“ indicates a possibly dangerous
situation. Failure to observe this safety information may result in death or severe injury.
WARNING – <Bodily injury>
This symbol in conjunction with the signal word "Warning" indicates a potential electrical
hazard. Failure to observe this safety information may result in death or severe injury.
CAUTION – <Minor injury>
This symbol in conjunction with the signal word “Caution“ indicates a possibly dangerous
situation. Failure to observe this safety information may result in minor or moderate injury.
This may also be used for property damage warnings.
NOTICE – <Property damage>!
The symbol indicates a potentially damaging situation.
Failure to observe this safety information may result in damage to or destruction of the product
and/or other system components.
IMPORTANT (NOTE)
This symbol indicates operator tips, particularly useful information, or important information
about the product or its further uses. It does not indicate a dangerous or damaging situation.

Safety
IM/265Gx/Ax-EN-07 265Gx, 265Ax 9
1.8 Name plate
2
13
14
15
D-32425 Minden 0045
/M 100%/+ 0%/-
SIL
M00076
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
21
23
24
22
Type
Opt.
S/N
PED: 1G PS: 600 bar
265GS VEBNB1
E1L1B2CBCLH3
265GS6502016232
HART
SW xx
Bj./Yr. 20xx
IP 67
10,5 ... 30 V DC 4 ... 20 mA
Mat. 1.4404(8)/ AU/Hast.C / L
-1 ...+600 bar min.Span 6.0 bar
eing./adj. +0.00 ... +50.000 bar
+0.00 ... +50.00 bar
MADE IN GERMANY
TAG: -/-
II 1/2G Ex ia IIC T6 or T4
II 1D Ex iaD 20 T50°C or T95°C
Ta = -40°C to +40°C or +85°C
ZELM 01 ATEX 0064
Electr. Data see EC-Type-Examination Certificate
0044
Fig. 1: Example: Name plate for 265G, 265A transmitter
1 Device type/order code (for information
on the individual letters/numbers, refer to
the information on the order confirmation
or device data sheet)
2 Options – additional information on the
order code.
3 Device serial number (factory no.)
4 Identification code with reference to the
Pressure Equipment Directive (SEP or
1G). See the section "Compliance with
the Pressure Equipment Directive
(97/23/EC)".
5 Power supply
6 Parts that come into contact with medium
7 Lower to upper range limit (LRL to URL)
8 Set span
9 HART output (process variable)
10 Ex design designation (optional)
11 No. of EC-type-examination certificate
12 Tag (max. 32 characters)
13 EC conformity mark
14 Identification number of the notified body
with reference to the Pressure Equipment
Directive. See the section "Compliance
with the Pressure Equipment Directive
(97/23/EC)".
15 "SIL2" identification code (optional)
16 Device communication type
17 Software version
18 Year of manufacture
19 Ingress protection
20 Permissible pressure (static)
21 Output signal
22 Code for filling liquid
23 Minimum span
24 Identification number of the notified body
with reference to ATEX certification
(optional)

Safety
10 265Gx, 265Ax IM/265Gx/Ax-EN-07
M00075
1
2
3
4
5
6
Druckfühler / Remote Seal
Flanschdruckfühler - Flach
DN 80 PN 16 / 40
pmax. = 20 bar
Form B EN 1092 - 1
Mat. 316 L
Füllung/Fill. Siliconöl IC
2
Fig. 2: Example: Additional name plate for devices with direct mount remote seals (optional)
1Remote seal type
2Meter size and nominal pressure
3Max. overload
4Sealing surface form
5Materials that come into contact with
medium
6Filling liquid in the remote seal system;
ID letters for filling liquid

Safety
IM/265Gx/Ax-EN-07 265Gx, 265Ax 11
1.8.1 Compliance with Pressure Equipment Directive (97/23/EC)
Devices with PS > 200 bar (20 MPa)
Devices with a permissible pressure of PS > 200 bar (20 MPa) have been tested for conformity
by the Technical Supervisory Association TÜV NORD (0045) in accordance with module H and
can be used for fluids of group 1 (PED: 1G).
The name plate bears the following identification codes:
2
D-32425 Minden 0045
/M 100%/+ 0%/-
SIL
M00077
Type
Opt.
S/N
PED: 1G PS: 600 bar
265GS VEBNB1
E1L1B2CBCLH3
265GS6502016232
HART
SW xx
Bj./Yr. 20xx
IP 67
10,5 ... 30 V DC 4 ... 20 mA
Mat. 1.4404(8)/ AU/Hast.C / L
-1 ...+600 bar min.Span 6.0 bar
eing./adj. +0.00 ... +50.000 bar
+0.00 ... +50.00 bar
MADE IN GERMANY
TAG: -/-
1
2
0044
II 1/2G Ex ia IIC T6 or T4
II 1D Ex iaD 20 T50°C or T95°C
Ta = -40°C to +40°C or +85°C
ZELM 01 ATEX 0064
Electr. Data see EC-Type-Examination Certificate
Fig. 3
1PED: 1G (at PS > 20 MPa)
SEP (at PS 20 MPa) 2CE 0045: Identification number of the
notified body with reference to the
Pressure Equipment Directive (for
PS > 20 MPa only)
Devices with PS 200 bar (20 MPa)
Devices with a permissible pressure of PS 200 bar (20 MPa) conform to Sec. 3 Para. (3) and
have not been tested for conformity. The devices have been constructed and manufactured
according to sound engineering practice (SEP).
The CE marking on the device does not refer to the Pressure Equipment Directive.
The name plate thus bears the identification code PED: SEP.

Safety
12 265Gx, 265Ax IM/265Gx/Ax-EN-07
1.9 Transport and storage
• After unpacking the pressure transmitter, check the device for transport damage.
• Check the packaging material for accessories.
• During intermediate storage or transport, store the pressure transmitter in the original
packaging only.
For information on permissible ambient conditions for storage and transport, see "Technical
data". Although there is no limit on the duration of storage, the warranty conditions stipulated in
the order confirmation from the supplier still apply.
1.10 Safety instructions for electrical installation
The electrical connection may only be made by authorized specialist personnel according to the
electrical plans.
The electrical connection information in the manual must be observed; otherwise, the electrical
protection type may be adversely affected.
Ground the measurement system according to requirements.
1.11 Safety information for inspection and maintenance
WARNING – Risk to persons
There is no EMC protection or protection against accidental contact when the housing cover is
open. There are electric circuits within the housing which are dangerous if touched.
Therefore, the supply power must be switched off before opening the housing cover.
WARNING – Risk to persons
The device can be operated at high pressure and with aggressive media. Any medium that
squirts out can cause severe injuries.
Depressurize the pipeline / tank before opening the transmitter connection.
Corrective maintenance work may only be performed by trained personnel.
• Before removing the device, depressurize it and any adjacent lines or containers.
• Check whether hazardous materials have been used as materials to be measured before
opening the device. Residual amounts of hazardous material may still be present in the
device and could escape when the device is opened.
• Within the scope of operator responsibility, check the following as part of a regular
inspection:
 Pressure-bearing walls/lining of the pressure device
 Measurement-related function
 Leaktightness
 Wear (corrosion)

Safety
IM/265Gx/Ax-EN-07 265Gx, 265Ax 13
1.12 Returning devices
Use the original packaging or suitably secure shipping containers if you need to return the
device for repair or recalibration purposes. Fill out the return form (see the Appendix) and
include this with the device.
According to EC guidelines for hazardous materials, the owner of hazardous waste is
responsible for its disposal or must observe the following regulations for shipping purposes:
All devices delivered to ABB Automation Products GmbH must be free from any hazardous
materials (acids, alkalis, solvents, etc.).
Please
Please contact Customer Center Service acc. to page 2 for nearest service location.
1.13 Integrated management system
ABB Automation Products GmbH operates an integrated management system, consisting of:
• Quality management system to ISO 9001:2008
• Environmental management system to ISO 14001:2004
• Occupational health and safety management system to BS OHSAS 18001:2007 and
• Data and information protection management system
Environmental awareness is an important part of our company policy.
Our products and solutions are intended to have a minimal impact on the environment and on
people during manufacturing, storage, transport, use, and disposal.
This includes the environmentally-friendly use of natural resources. We conducts an open
dialog with the public through our publications.
1.14 Disposal
This product is manufactured from materials that can be reused by specialist recycling
companies.
1.14.1 Information on WEEE Directive 2002/96/EC (Waste Electrical and Electronic Equipment)
This product is not subject to WEEE Directive 2002/96/EC or relevant national laws
(e.g., ElektroG in Germany).
The product must be disposed of at a specialist recycling facility. Do not use municipal garbage
collection points. According to the WEEE Directive 2002/96/EC, only products used in private
applications may be disposed of at municipal garbage facilities. Proper disposal prevents
negative effects on people and the environment, and supports the reuse of valuable raw
materials.
If it is not possible to dispose of old equipment properly, ABB Service can accept and dispose of
returns for a fee.

Safety
14 265Gx, 265Ax IM/265Gx/Ax-EN-07
1.14.2 RoHS Directive 2002/95/EC
With the Electrical and Electronic Equipment Act (ElektroG) in Germany, the European
Directives 2002/96/EC (WEEE) and 2002/95/EC (RoHS) are translated into national law.
ElektroG defines the products that are subject to regulated collection and disposal or reuse in
the event of disposal or at the end of their service life. ElektroG also prohibits the marketing of
electrical and electronic equipment that contains certain amounts of lead, cadmium, mercury,
hexavalent chromium, polybrominated biphenyls (PBB), and polybrominated diphenyl ethers
(PBDE) (also known as hazardous substances with restricted uses).
The products provided by ABB Automation Products GmbH do not fall within the current scope
of the directive on waste from electrical and electronic equipment according to ElektroG. If the
necessary components are available on the market at the right time, in the future these
substances will no longer be used in new product development.

Use in potentially explosive atmospheres
IM/265Gx/Ax-EN-07 265Gx, 265Ax 15
2 Use in potentially explosive atmospheres
According to Directive 94/9/EC (ATEX):
When installing explosion-proof transmitters (electrical connection, grounding / equipotential
bonding, etc.), national regulations, DIN / VDE standards, explosion protection directives, and
the Ex test certificate of the device must be observed. The certified explosion-proof designation
for the transmitter is provided on the name plate.
2.1 Type-examination certificate/Declaration of conformity
For explosion-proof transmitter models, the EC-type-examination certificate or declaration of
conformity forms an integral part of these operating instructions.
2.2 Type of protection "intrinsic safety Ex i"
• Only intrinsically safe devices may be installed in the transmitter signal circuit. The signal
circuit can be interrupted while the transmitter is in operation (e.g., clamping/unclamping
signal lines).
• The housing may be opened during operation.
• Transmitters with and without remote seals and featuring type of protection "intrinsic safety
Ex i" may be directly integrated into the partition separating Zone 0 and Zone 1 (sensor
diaphragm in Zone 0, transmitter in Zone1), provided that the power is supplied via an
intrinsically safe circuit (Ex ia or Ex ib). (measuring ranges ≤400 mbar with Ex ia only)
• Test circuit (terminals "TEST +/-"): With type of protection "intrinsic safety", connections
should only be established to passive, intrinsically safe circuits. The category, explosion
group, and maximum values for Uo, Io, and Poof the intrinsically safe test circuit can be
determined on the basis of the intrinsically safe signal circuit connected.
IMPORTANT (NOTE)
Please observe the rules governing interconnection.

Use in potentially explosive atmospheres
16 265Gx, 265Ax IM/265Gx/Ax-EN-07
2.3 Use in areas with combustible dust
Installation must be performed in accordance with EN 61241-14:2004.
• Transmitters can only be connected using cable glands certified in accordance with Directive
94/9/EC (ATEX) (not included in scope of delivery). The cable gland must conform to IP 67
degree of protection. The smoldering temperature of the dust must be at least 75 K above
the max. surface temperature of the transmitter. The max. surface temperature is 95 °C and
is obtained by adding together the max. ambient temperature (85 °C) and max. self-heating
(10 K).
CAUTION - Risk
When using separating sensors with an anti-stick coating, be aware of the risk of electrostatic
discharge (with consideration given to the medium and transport speed).
2.4 Category 3 for use in "Zone 2"
• The transmitter must be connected using a certified cable gland (not included in scope of
delivery). The cable gland must satisfy the requirements of type of protection "increased
safety Ex e" in accordance with Directive 94/9/EC (ATEX). Additionally, the conditions
stipulated in the type-examination certificate for the cable gland must be observed.
WARNING - Risk of explosion!
Opening the cover presents a risk of spark formation and, therefore, explosion.
Opening the housing during operation (with the operating voltage switched on) is not
permitted.

Use in potentially explosive atmospheres
IM/265Gx/Ax-EN-07 265Gx, 265Ax 17
2.5 Type of protection "flameproof enclosure Ex d"
Please observe the following installation information:
• The transmitter must be connected using suitable cable and wire entries or pipeline systems,
which satisfy the requirements of EN 60079-1:2007, Section 13.1 or 13.2, and for which a
separate examination certificate exists.
• Openings in the housing that are not being used must be closed in accordance with
EN 60079-1:2007, Section 11.9.
• Cable and wire entries, as well as plugs, which do not comply with the points stipulated
above may not be used.
To align the transmitter at the measuring point (by turning by a maximum of 360°), the rotatable
housing may be loosened on the shaft between the measuring equipment and housing:
1.Loosen the locking screw by a maximum of 1 rotation.
2.Align the housing.
3.Retighten the locking screw.
Before switching on the operating voltage:
1.Close the housing.
2.Secure the housing cover by turning the locking screws (hex-head socket screws)
counterclockwise.
3.Secure the housing against rotating by turning the locking screw clockwise.
4.The housing cover, electronics housing, and measuring equipment may only be replaced
with components that have been approved for this purpose.
CAUTION - Risk
Opening the housing during operation (with the operating voltage switched on) is not
permitted.

Use in potentially explosive atmospheres
18 265Gx, 265Ax IM/265Gx/Ax-EN-07
2.6 Type of protection "intrinsic safety i", "flameproof enclosure d", "protection by enclosure tD", and
"non-sparking nA"
Certificate with alternative types of protection:
A Intrinsic safety (Category 1/2G or 1D, Ex i)
Flameproof enclosure (Category 1/2G, Ex d)
Protection by enclosure (Category 2D, Ex tD)
B
Non-sparking (Category 3G, Ex nA)
IMPORTANT (NOTE)
Prior to final installation, the operator must decide whether the device is to be used
(A) as a device featuring type of protection "Ex ia" or "Ex iaD" (intrinsic safety) or
(B) as a device featuring any of the other types of protection ("Ex d", "Ex tD", "Ex nA"). The
operator must then permanently mark the selected type of usage in the appropriate box on the
name plate.
Once selected, the type of protection may not be changed.
The information provided previously on the selected type of protection must be observed.
CAUTION - Risk
Failure to observe this information will have an adverse effect on explosion protection.
2.7 Canadian Standards Association (CSA): "Explosion-proof"
NOTICE - Potential damage to parts
Transmitters with LCD displays must not be used in etherized atmospheres.

Use in potentially explosive atmospheres
IM/265Gx/Ax-EN-07 265Gx, 265Ax 19
2.8 Aspects of "Ex safety" and "IP protection" for Australian applications
TestSafe certificate number
ANZEx 06.3056
Ingress protection
Ex d IIC T6 IP 66 / IP 67
Ex tD A21 IP 66 / IP 67 T85 deg C
Tamb = -20 ... 75 °C (-4 ... 167 °F)
Symbol Meaning
Ex d Flameproof enclosure (gas)
IIC Gas group
T6 Transmitter temperature class (corresponds to max. 85 °C (185 °F) at an
ambient temperature Tamb of 75 °C (167 °F).
Ex tD Dust (dangerous medium)
A21 Suitable for "Zone 21"
IP 66 / IP 67 Protection type
T85 deg C Maximum surface temperature of the transmitter at an ambient temperature
Tamb of 75 °C (167 °F), for dust layers of up to 5 mm (0.20 inch) in thickness.
The transmitters have been certified in accordance with the following standards:
IEC 60079-0:2004
AS/NZS 60079.0:2005
Electrical apparatus for explosive gas atmospheres.
Part 0: General requirements
IEC 60079-1:2003
AS/NZS 60079.1:2005
Electrical apparatus for explosive gas atmospheres.
Part 1: Flameproof enclosure "d"
IEC 61241-0:2004
AS/NZS 61241.0:2005
Electrical apparatus for use in the presence of combustible dust.
Part 0: General requirements
IEC 61241-1:2004
AS/NZS 61241.1:2005
Electrical apparatus for use in the presence of combustible dust.
Part 1: Protection by enclosure "tD"

Use in potentially explosive atmospheres
20 265Gx, 265Ax IM/265Gx/Ax-EN-07
Notes
• Opening the housing during operation (i.e., while the operating voltage is switched on) is not
permitted.
• The transmitter must be connected using a suitable cable, cable glands, or pipeline systems,
which satisfy the requirements of the standards listed above and for which a separate test
certificate is available.
CAUTION - Risk
Only use cables and cable glands that are approved for temperatures of 80 °C (176 °F).
• Openings in the housing that are not being used must be closed in accordance with the
standards listed above.
• Before switching on the operating voltage:
• The housing must be closed.
• Secure the housing cover by turning the locking screws (hex-head socket screws)
counterclockwise.
• Secure the housing against rotating by turning the locking screw clockwise.
• The housing cover, electronics housing, and measuring equipment may only be replaced
with components that have been approved for this purpose.