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Field Operating instruction IM/268H_1 2600T Series Pressure Transmitters Models 268H/N - 1 -...
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Cert. No. Q5907 As a part of ABB, a world leader in process automation technology, we offer customers application expertise, service and support worldwide. ISO 9001: 2000 We are committed to teamwork, high quality manufacturing, advanced technology and unrivalled service and support.
CONTENTS INTRODUCTION Section Page The 2600T series is a modular range of field mounted, micro- processor based electronic transmitters, using a unique inductive sensing element. The Model 266/268H/N is a INTRODUCTION .............. 3 pressure transmitter with "single port" process connection; this TRANSPORT, STORAGE, HANDLING AND PRODUCT IDENTIFICATION ..........
PRODUCT IDENTIFICATION TRANSPORT The instrument is identified by the data plates shown in After final calibration, the instrument is packed in a carton Figure 1. (Type 2 to ANSI/ASME N45.2.2-1978), intended to provide The Nameplate (Ref.A) provides information concerning the protection from physical damage.
SAFETY PHILOSOPHY MANAGEMENT OF FUNCTIONAL SAFETY The Safety 2600T Pressure Transmitters are field devices designed according to the requirements of the standard For each application the installer of the owner of a safety IEC61508 for the Safety Related Systems. Standard currently system must prepare a Safety Planning which must be updated used focus on individual parts of all the safe instrumentation throughout the Safety Life-cycle of the Safety Instrumented...
LIFE-CYCLE ACTIVITIES Application Scope - Definition of the Process Interface requirements. - Identification of the instrumentation for every physical risk Definition of the Application Target property (input) and define their fail safe signal. The process equipment shall be described in order to define - Definition of the required amount of instruments and clearly the application target with its hazard potential.
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..LIFE-CYCLE ACTIVITIES Application Software Development or final element are operating together and perform the required function are described in the "Electrical connections" and Programming Environment "Calibration" sections of the present document. The application software of the Safety 2600T has been developed in ANSI C language.
FAULTS OUTSIDE THE FUNCTIONAL SAFETY The redundant algorithms and the electronics are designed to detect all the internal hardware faults therefore the transmitter diagnostic is not able to detect faults related to the process and to the installation configuration. In the following table the known weaknesses resulting from the transducer FMEA (Failure Mode and Effect Analysis) are listed.
PRINCIPLE OF OPERATION Primary Electronics Printed Circuit Inductance Coil & Magnetic Core Ferrite disc Sensor Diaphragm Reference chamber Isolating Diaphragm Process connection Input Fig. 2a - Primary Unit The instrument consists of two functional units: The unit also includes a temperature sensor. The two inductance - Primary Unit values and the sensor temperature, are combined in the - Secondary Unit...
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2600T Safety Transmitter takes advantage of the intrinsic when a fault occurs in the analog section of the electronics. The redundancy of the 2600T series differential inductive sensor. output stage is also checked by reading back the analog output The two inductive signals are separately detected in the signal.
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. . . PRINCIPLE OF OPERATION Primary Electronics Watchdog2 Main purpose of this unit is to convert the pressure signal to an A secondary watchdog is used to monitor the correct working electronic pulse-width signal. As help for added accuracy both of the main clock.
ABB cannot guarantee that a construction material is suited to a particular process fluid under all possible process conditions. See also the paragraph on "Operati- ve limits".
ELECTRICAL CONNECTIONS recommended. The cable shield should be grounded in one WARNING - For installation in Hazardous Areas, side only, to avoid dangerous earth paths. i.e. areas with danger of fire and/or explosion, prior to making electrical connections, ensure compliance with WARNING - For Hazardous Areas installations, safety information on the Safety Marking plate.
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. . . ELECTRICAL CONNECTIONS NOTE: If the use of the Hand Held Communicator is WARNING : DO NOT ATTEMPT TO CONNECT foreseen, a resistance of 250 ohms minimum must be AN AMPEROMETER BETWEEN A "TEST" TERMINAL included in the current loop, between the power supply and AND A "COMM"...
ELECTRICAL REQUIREMENTS Transmitter failure mode (compliant to NE 43 NAMUR The transmitter operates on a minimum voltage of 10.5 Vdc to regulation) a maximum of 42 Vdc and is protected against polarity The output signal can be user-selected to a value of 3.7 or 22 inversion.
COMMISSIONING AND CONFIGURATION ISSUES disabled. The Safety 2600T pressure transmitter is protected The 2600T Safety transmitters contain inside its non-volatile against undesirable configuration changes by a dedicated memories a number of parameters. Some of them, factory hardware link placed on the secondary electronics board which defined, are typical of the sensor and are not user-modifiable, is identified as Write Protect Mode Link (see fig.
Fig. 10 - Calibration electrical connections calibration must be done by method ii) or iii). In the Safety 2600T Series it is also possible to apply a scaling Set up an appropriate test rig in accordance with the required to the reading of the transmitter.
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..CALIBRATION Zero and span - true zero procedure Absolute pressure Gauge pressure Use the zero and span procedure above but apply to the process connection absolute pressures equal to the Lower - Set the A-B switch into "A" position Range Value (LRV) and then to the Upper Range Value (URV), turning, for at least 1 second, the zero and span screws - Switch on the power supply.
PROOF TESTS PRE-STARTUP ACCEPTANCE TEST To maintain the claimed Safety Integrity Level (SIL 2) a After the installation of the device in order to validate the proof test procedure is requested every 10 years. The required safety functionality of the system together with the proof tests consists in the following operations: target equipment according to the Safety Requirement Specification a Pre-Startup Acceptance test shall be performed...
(*) The spare parts list is Nameplate available at: Blind cover Terminal www.abb.com blocks Tang - searching for: Extended SL262_4H.pdf or from local ABB representatives. Secondary Analog or digital output indicator Blind cover Electronics screw Sensor assembly Transmitter Sectional View - 22 -...
SIMPLE FAULT FINDING (HART) This part is applicable only for a quick fault finding in the case that the Hand Held Terminal or the P.C. Configurator Package are not available. If the transmitter does not appear to be working satisfactory, carry out the following fault finding checks before contacting your nearest Service Centre.
ADDENDUM FOR "METERS" OPTION OF THE TRANSMITTERS GENERAL DESCRIPTION This option provides three different indications (meters) inside the transmitter housing. The "output meters" can be mounted on the terminal block (field terminals) side; one is of "analog" type, the second is of "digital" type (LCD, ProMeter) and the third is the CoMeter.
It can be connected, plug & play, into the standard terminal block of the 2600T Series Pressure Transmitter. And more precisely, they are: It is capable to provide both reading and configuration...
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ADDENDUM FOR COMETER OR INDICATOR WITH HART PROGRAMMING CAPABILITY AND PROMETER - PROGRAMMABLE INDICATOR COMETER ONLY COMETER and PROMETER ConF METER ENTER NEXT ConF NEXT PREV ConF NEXT PREV PREV MANUAL AUTO ENTER ENTER NEXT NEXT NEXT NEXT NEXT 20000 4000 .
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ADDENDUM FOR COMETER OR INDICATOR WITH HART PROGRAMMING CAPABILITY AND PROMETER - PROGRAMMABLE INDICATOR Under ConF PERCENT option, the user can decide for linear Then the CONF option appears. or SQR output. When SQR output is selected, the output is Using PREV or NEXT key, the user can select CONF, TRIM, linear from 0 to 20% (to 4% of input).
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ADDENDUM FOR COMETER OR INDICATOR WITH HART PROGRAMMING CAPABILITY AND PROMETER - PROGRAMMABLE INDICATOR TRIM ENTER LOOP IN_MAN. ENTER NEXT NEXT PREV NEXT PREV PREV LOOPTST RERANG. ENTER ENTER NEXT NEXT NEXT PREV PREV 0.000 40.000 PREV OTHER SET 4 mA 20 mA SET 20 mA 4 mA...
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ADDENDUM FOR COMETER OR INDICATOR WITH HART PROGRAMMING CAPABILITY AND PROMETER - PROGRAMMABLE INDICATOR REVIEW ENTER NEXT NEXT PREV PREV SENS N' UP/DOWN UNITS TAG 8 XMTR N' ENTER ENTER ENTER ENTER ENTER 1234567 1234567 ABCDEFG NEXT PREV NEXT PREV NEXT PREV (SCROLL) (SCROLL)
ADDENDUM FOR PV-SCALING OPERATION You can apply this 50 mbar for your PV scaling operation, with PV-scaling operation can be used to align the "zero" of the process with the "zero" reading of the transmitter. A configuration similar effect as per the previous example: tool must be use to perform this operation through digital PV reading = 50 mbar communication.
ADDENDUM FOR "SURGE PROTECTION" OPTION OF THE TRANSMITTERS WARNING - Note for Hazardous Area Installation For the Pressure Transmitter with surge protector must be additional considered: 1 The transmitter has to be supplied from a voltage source which is safely separated from mains (galvanic separation). 2 The potential equalization for the entire cable link must be guaranteed since the intrinsic safety circuit of the transmitter is grounded.
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. . . ADDENDUM FOR "SURGE PROTECTION" OPTION OF THE TRANSMITTERS Self-tapping screw M2.9x6 mm to secure Stuck on label to disclose the the surge prot. p.c. board presence of the surge protector +/- Terminals Socket for built-in indicator Two holes for M4x18 mm fixing screws TERMINAL BLOCK...
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. . . ADDENDUM FOR "SURGE PROTECTION" OPTION OF THE TRANSMITTERS Fig. 2a Connection for terminal block and housing. Note: Before to fix the terminal block to the housing put the two wires in the position as shown above, in order to avoid any damages.
ADDENDUM USE OF HARDWARE LINKS ON THE SECONDARY ELECTRONIC The secondary electronic is shown in the figure. There are 4 dip switches located on the secondary electronics as indicated below; they are used for settings when integral digital display is not available. ✶...
ADDENDUM FOR SELECTABLE OUTPUT FUNCTIONS GENERAL DESCRIPTION The 2600T Series Pressure Transmitter can be selected with a linear, a "polynomial" output function, for input linearization using a 5th order polynomial function, or for input linearization using 2 polynomial functions of 2nd order.
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. . . ADDENDUM FOR SELECTABLE OUTPUT FUNCTIONS The non conformity error depends on the ratio between diameter and length of the vessel: for ratio ≥5 to 1 the error is ≤0.25%. The polynomium found with mathematical method gives an error of ±0.15%. c) Cilindrical vessel with elliptical or pseudoelliptical ends (see Fig.
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. . . ADDENDUM FOR SELECTABLE OUTPUT FUNCTIONS 3.0 POLYNOMIAL 2 (Two polinomial functions of 2nd order) - Available for Analog + HART version - Fig. 2b Analog Output transfer function can also be defined as a two polinomial function. Both polinomials are of 2nd order. So two different polinomial functions are used: Out = [±...
ADDENDUM FOR OUTPUT % RERANGING Sometimes, in case of tank level measurement, it becomes difficult to calculate the LRV or the URV of the transmitter, or to empty the tank for zero adjustment. So, not only with flange-mounted, but also with differential pressure transmitters using remote seals, the Output % Reranging operation helps the user during transmitter calibration.
EN 61241-0 (General requirements), EN 61241-1 (Flameproof enclosures “d”), EN 61241-11 (Intrinsic safety “i”) for DUST. The pressure transmitters of the 2600T SERIES have been certified for the following group, categories, media of dangerous atmosphere, temperature classes, types of protection. Examples of application are also shown below by simple sketches.
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. . . ADDENDUM FOR "EX SAFETY" ASPECTS AND "IP" PROTECTION (EUROPE) ° Certificate ATEX II 1D Ex iaD 20 T95 Application with Dust ZELM Certificate number ZELM 08 ATEX 0361 X The meaning of ATEX code is as follows: Zone "20"...
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IP code Separation elements About the degree of protection provided by the enclosure of the pressure transmitter, the 2600T SERIES has been certified IP67 according to EN 60529 standard (corresponding to IEC 529). Note: the protection is mainly assured by the The first characteristic numeral indicates the protection of the inside electronics against "IP degree"...
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[ib] or [ia] supply (associated apparatus) IP code About the degree of protection provided by the enclosure of the pressure transmitter, the 2600T SERIES has been certified IP67 according to EN 60529 standard (corresponding to IEC 529). The first characteristic numeral indicates the protection of the inside electronics against ingress of solid forein objects including dusts.
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FM 3810 : Electrical and Electronic Test, Measuring and Process Control Equipment. NEMA 250 : Enclosure for Electrical Equipment (1000 Volts Maximum) The 2600T Series pressure transmitters have been certified by Factory Mutual for the following Class, Divisions and Gas groups, hazardous classified locations, temperature class and types of protection.
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Electrical apparatus for explosive gas atmosphere. Part 11 : Intrinsic Safety “i” The 2600T Series pressure transmitters have been certified by CSA International for the following Class, Divisions and Gas groups, hazardous classified locations, temperature class and types of protection.