OXYMAT 6 Gas Analyzers for the Determination of Oxygen

Transcription

1 Gas Analyzers for the Determination of Oxygen General Application Design ode of operation Reference gases, cross interferences Versions - Wetted parts Communication 9 9 unit 9 Connections, assembly 0 Gas paths Electrical connection Technical data Dimensions Ordering data Field unit Connections, assembly Gas paths 9 Electrical connection Technical data Dimensions Ordering data Explosion-proof design BARTEC EEx p control unit 0 Ex purging unit inipurge F Spare parts Documentation Conditions of sale and delivery Export regulations Contact addresses Siemens Extract PA 0 November 00

2 General Application The gas analyzers are based on the paramagnetic alternating pressure method and are used to measure oxygen in gases. Special applications Besides the standard combinations special applications concerning material of the gas path, material of sample cells are also available on request. Application examples easurement of O For boiler control in firing systems In safety-relevant areas As a reference variable for emission measurements according to TA-Luft,. and. BImSchV In the automotive industry (engine test systems) Warning equipment In chemical plants In ultra-pure gases for quality monitoring Version to analyze flammable and non-flammable gases or vapors for use in hazardous areas (zone and zone ). (Use in hazardous areas of zone 0 is not permissible.) Essential characteristics Four freely-parameterizable measuring ranges, also with zero offset, all measuring ranges linear Electrically isolated signal output selectable as 0// to 0 ma (also inverted) Autoranging or manual range switching possible; remote switching is also possible Storage of measured values possible during adjustments Time constants selectable within wide limits (static/dynamic noise suppression); i.e. the response time of the analyzer can be matched to the respective application Simple handling using menu-based operation Short response time Low long-term drift Two-stage access code to prevent unintentional and unauthorized inputs Internal pressure sensor for correction of pressure variations in sample gas (range 00 to 000 hpa absolute) External pressure sensor can be connected for correction of variations in sample gas pressure (up to 000 hpa absolute), only with piping as the gas path Automatic range calibration can be parameterized Operation based on NAUR Recommendation easuring-point selection for up to measuring points (programmable) easuring point identification easuring range identification onitoring of sample gas and/or reference gas (option) onitoring of reference gas with reference gas connection 000 to 000 hpa (option) Different smallest spans (0. %,.0 % or.0 % O ), depending on version Customer-specific analyzer options such as e.g.: - Customer acceptance - Tag labels - Drift recording - Clean for O service - Kalrez gaskets Analyzer section with flow-type compensation circuit (option): a flow is passed through the compensation branch to reduce the vibration dependency in the case of highly different densities of the sample and reference gases Simple analyzer exchange since electric connections are easy to remove. Sample cell for use in presence of highly corrosive sample gases. 9 unit: essential characteristics 9 unit with HU for installation - in swing frame - in cabinets, with or without slide rails Front panel for service can be hinged down (laptop connection) Internal gas paths: flexible tube made of Viton or pipe made of titanium Gas connections for sample gas input and output and for reference gas: pipe diameter mm or /" Field unit: essential characteristics Two-door housing with gas-tight separation of analyzer and electronics sections Each half of the enclosure can be purged separately Analyzer section and piping can be heated up to 0 C (option) Gas path and pipe conections made of stainless steel (type No..) or titanium Purging gas connections: pipe diameter 0 mm or /" Gas connections for sample gas input and output and for reference gas: clamping ring connection for pipe diameter mm or /" Simple analyzer exchange since electric connections are easy to remove. Siemens Catalog Extract PA 0 November 00

3 General Design Display and control panel Large LCD panel for simultaneous display of: - easured value (digital and analog displays) - Status line - easuring ranges Contrast of LCD panel adjustable using menu Permanent LED backlighting Washable membrane keyboard with five softkeys enu-based operation for configuration, test functions, calibration User help in plain text Graphic display of concentration trend; programmable time intervals Operating software in two languages: German/English, English/French, French/English, Spanish/English, Italian/English. Inputs and outputs One analog output for measured value Two analog inputs programmable (correction of cross interferences or external pressure sensor) Six binary inputs freely configurable (e.g. for range switching, processing external signals from sample conditioning) Six relay outputs freely configurable (failure, maintenance request, maintenance switch, limit alarm, external solenoid valves) Extension with eight additional binary inputs and eight additional relay outputs for automatic calibration with up to four calibration gases. Communication RS present in basic unit (connection at the rear; with 9 unit also possibility of connection behind the front plate). Options AK interface for the automotive industry with extended functions Converter to RS Converter to TCP/IP Ethernet Linking to networks via PROFIBUS-DP/-PA interface SIPRO GA software as service and maintenance tool LED backlit graphic display and membrane keyboard with noticeable click Status line for display of analyzer status (programmable) Two code levels according to NAUR (maintenance and specialist level) Easy operation with menu control using five softkeys Display of concentrations as numbers and bargraph Display of current measuring ranges Display of start-of-scale and full-scale values Keyboard to enter values ESC key to abort inputs INFO key for help in plain text CLEAR key to delete inputs ENTER key to accept input values EAS key to return to measurement mode Fig., membrane keyboard and graphic display Siemens Catalog Extract PA 0 November 00

4 General ode of operation In contrast to almost all other gases, oxygen is paramagnetic. This property is utilized as the measuring principle by the gas analyzers. Oxygen molecules in an inhomogeneous magnetic field are drawn in the direction of increased field strength due to their paramagnetism. When two gases with different oxygen concentrations meet in a magnetic field, a pressure difference is produced between them. In the case of, one gas (, Fig. ) is a reference gas (N, O or air), the other is the sample gas (). The reference gas is introduced into the sample cell () through two channels (). One of these reference gas streams meets the sample gas within the area of a magnetic field (). Because the two channels are connected, the pressure, which is proportional to the oxygen concentration, causes a cross flow. This flow is converted into an electric signal by a microflow sensor (). The microflow sensor consists of two nickel grids heated to approx. 0 ºC which form a Wheatstone bridge together with two supplementary resistors. The pulsating flow results in a change in the resistance of the Ni grids. This results in a bridge offset which depends on the oxygen concentration in the sample gas. Because the microflow sensor is located in the reference gas stream, the measurement is not influenced by the thermal conductivity, the specific heat or the internal friction of the sample gas. This also provides a high degree of corrosion resistance because the flow sensor is not exposed to the direct influence of the sample gas. By using a magnetic field with alternating strength (), the effect of the background flow in the microflow sensor is not detected, and the measurement is thus independent of the instrument orientation. The sample cell is directly in the sample path and has a small volume. The microflow sensor thus responds quickly, resulting in a very short response time for the. Vibrations frequently occur at the place of measurement and may falsify the measured signal (noise). A further microflow sensor (0) through which no gas passes acts as a vibration sensor. Its signal is applied to the measured signal as compensation. If the density of the sample gas deviates by more than 0 % from that of the reference gas, the compensation microflow sensor (0) is flushed with reference gas just like the measuring sensor (). Note: The sample gas have to enter the analyzer dustless. Condensate in the cells must be avoided. That is why the most measuring tasks require an appropriate gas preparation. DP O O O O O 9 0 Reference gas inlet Restrictors Reference gas channels icroflow sensor for measurement Sample gas inlet Sample cell Paramagnetic effect Electromagnet with alternating field strength 9 Sample gas and reference gas outlet 0 icroflow sensor in compensation system (without flow) Fig., mode of operation Siemens Catalog Extract PA 0 November 00

5 Reference gases General Reference gases, cross interferences easuring range Recommended reference gas Reference gas pressure Remarks 0 to... % v/v O N 000 to 000 hpa... to 00 % v/v O (suppressed zero with full-scale value 00 % v/v O ) Around % v/v O (suppressed zero with % v/v O within the span) O Air above sample gas pressure (max. 000 hpa absolute) 00 hpa with respect to sample gas pressure which may vary by max. 0 hpa around the atmospheric pressure The reference gas flow is set automatically to to 0 ml/min (up to 0 ml/min when also flowing through compensation branch). Table Reference gases for Correction of zero error / Cross interferences Residual gas (concentration 00 % v/v) Organic gases Zero deviation in % v/v O absolute Residual gas (concentration 00 % v/v) Inert gases Zero deviation in % v/v O absolute Acetic acid CH COOH -0. Argon Ar -0. Acetylene C H -0.9 Helium He +0., butadiene C H -0. Krypton Kr -0., butadiene C H -0.9 Neon Ne +0. iso-butane C H Xenon Xe -.0 n-butane C H butene C H -0.9 Anorganic gases iso-butene C H -.0 Ammonia NH -0.0 Cyclo-hexane C H -. Carbon dioxide CO -0.0 Dichlorodifluoromethane (R) CCl F -. Carbon monoxide CO +0.0 Ethane C H -0.9 Chlorine Cl -0.9 Ethylene C H -0. Dinitrogen monoxide N O -0. n-heptane C H -. Hydrogen H +0. n-hexane C H -.0 Hydrogen bromide HBr -0. ethane CH -0. Hydrogen chloride HCl -0. ethanol CH OH -0. Hydrogen fluoride HF -0.0 n-octane C H -. Hydrogen iodide HI -.9 n-pentane C H -. Hydrogen sulphide H S -0. iso-pentane C H -.9 Oxygen O +00 Propane C H -0. Nitrogen N 0.00 Propylene C H -0. Nitrogen dioxide NO Trichlorofluoromethane (R) CCl F -. Nitrogen oxide NO +.9 Vinyl chloride C H Cl -0. Sulphur dioxide SO -0.0 Vinyl fluoride C H F -0. Sulphur hexafluoride SF -.0, vinylidene chloride C H Cl -. Water H O -0.0 Table Zero error due to diamagnetism or paramagnetism of residual gases with nitrogen as the reference gas at 0 C and 000 hpa absolute (according to IEC 0/) Conversion to other temperatures: The zero errors mentionned in Table must be multiplied with a correction factor (k): with diamagnetic gases: k = K / (υ [ C] + K) with paramagnetic gases: k = [ K / (υ [ C] + K)] (all diamagnetic gases have a negative zero error). Siemens Catalog Extract PA 0 November 00

6 General Versions - Wetted parts Standard Gas path 9 unit Field unit Explosion-protected field unit with hoses with pipes with pipes with pipes Nipple Hose Sample cell Stub sample cell Restrictor O-rings Nipple Pipe Sample cell Restrictor O-rings Nipple Pipe Sample cell Restrictor O-rings Nipple Pipe Sample cell Restrictor O-rings SS, type No.. Viton SS, type No.. SS, type No.. PTFE (Teflon) Viton Further versions (e.g. with Hastelloy C) available as special application. Titanium Titanium SS, type No.. or tantalum Titanium Viton or FFK (Kalrez) SS, type No.. SS, type No.. SS, type No.. or tantalum SS, type No.. Viton or FFK (Kalrez) Hastelloy C Hastelloy C. or Tantal Hastelloy C FK (Viton) or Kalrez Options Flowmeter etering pipe Float Float limit Elbows Duran glass Duran glass, black Teflon Viton Pressure switch embrane Enclosure Viton PA.T Siemens Catalog Extract PA 0 November 00

7 General Communication Communications Interface parameters The gas analyzers of series, ULTRAAT, Level RS ULTRAAT/,, and Baud rate 900 CALOAT, as well as the ULTRAAT offer the following communications facilities: Serial RS interface present as standard with internal communications bus (ELAN) which permits communication between the analyzers and with multi-channel analyzers from one channel to the other via the serial interface even without a PC for e.g. information on the process gas pressure and compensation Data bits Stop bit Start bit Parity No echo mode None of the influences of interfering gases. SIPRO GA, a software tool especially for servicing and maintenance tasks. All functions of the analyzers, whether an indi- Ordering information Order No. vidual device or where several are networked together, can be remote controlled and monitored using SIPRO GA. Interface description (German) RS /RS converter AE000 C9-Z9-U PROFIBUS-DP/-PA is the leading field bus on the market. All RS /Ethernet converter C9-A-D Siemens gas analyzers are suitable for PROFIBUS when equipped with an optional plug-in card (retrofitting also possible) SIATIC cable/bus cable XV 0-0EH0 and satisfy the binding "Device profile for analyzers" de- SIATIC bus connector ES 9-0BB-0XA0 fined by the PNO (PROFIBUS user organization). Central access to the analyzers in the system is possible using the 9-pin DSUB plug ES 9-0BB-0XA0 SIATIC PD operator input software. Repeater ES 9-0AA0-0XA0 (see also Catalog CA 0 or IK PI) RS SIPRO GA 9 RS RS Converter RS RS RS Converter RS RS Application: communications software for remote maintenance and servicing of Siemens process gas analyzers; max. analyzers with up to components each. Networking of several gateways is possible when using the RS /Ethernet converter. The number of operatable analyzers is increased correspondingly. Functions: display and saving of all analyzer data, remote operation of all analyzer functions, parameter and configuration settings; comprehensive diagnostics information, remote calibration; online help; cyclic saving of measured values and status on hard disk and exporting to commercially available application programs, downloading of new software. Hardware requirements: PC/laptop; recommended with Pentium II B RA, free CO port: RS or RS, CD drive. Software requirements: Windows 9 or NT ( SP), Windows 000 or Windows X-P. Fig. Typical design of an RS network Item Designation Computer RS /RS converter with RS /RS cable RS bus connector with jumper Analyzers RS cable RS bus connector RS network 9-pin DSUB plug 9 Option: RS repeater Ordering information SIPRO GA software German/English selectable during installation, comprising CD, with installation instructions, software product certificate and registration form Firmware retrofitting sets for older analyzers: ULTRAAT (prior to SW version.0) All languages ULTRAAT (prior to SW version.) German English French Spanish Italian (prior to SW version.) German English French Spanish Italian Order No. S90-B0-A C9-A9-S0 C9-A-S0 C9-A-S0 C9-A-S0 C9-A-S0 C9-A-S0 C9-A0-S0 C9-A0-S0 C9-A0-S0 C9-A0-S0 C9-A0-S0 Siemens Catalog Extract PA 0 November 00

8 General Communication PROFIBUS-DP/-PA Fig. Basic structure of a PROFIBUS system The term "Field bus" describes a digital communications system with which distributed field devices in a plant are networked together via one single cable, and connected at the same time to programmable controllers or to a process control system. PROFIBUS is the leading field bus on the market. The PROFIBUS-DP version is widely used for production automation because of its high transmission rate for relatively small data quantities per device, whereas PROFIBUS-PA particularly takes into account the features required for process engineering, e.g. large data quantities and application in potentially explosive atmospheres. User benefits can be found in the extremely high potentials for cost savings in all areas of the plant, covering configuring and commissioning, operation and maintenance, and up to later plant extensions. Operation of the gas analyzers from a control system or separate PC is possible using the SIATIC PD (Process Device anager) operator input tool which is software executing under Windows 9/9/NT and which can also be incorporated into the SIATIC PCS process control system. This permits clear display of both the incorporation of devices into the system and the complex parameter structure of the analyzers, permitting operation to be carried out simply by clicking. The PROFIBUS user organization (PNO) is an independent international institution, and represents the interests of many vendors and users. In addition to services such as consultation, training and device certification, its prime task is the further development, standardization and promotion of the PROFIBUS technology. The definition of a binding functionality for a device class in a profile is a prerequisite for the uniform response of devices from different vendors, the so-called interoperability. The profile for analyzers was defined as binding at the end of 999, thus guaranteeing the interaction of all PROFIBUS-based devices in a plant. This profile defines the functionality of the analyzers in a block model: e.g. the physical block describes the measuring procedure, analyzer and vendor names, serial number and operating state (operation, maintenance). Various functional blocks contain the execution of specific functions such as the processing of measured values or alarms. The transducer blocks describe the functionality of the actual measuring procedure and its control, e.g. preprocessing of a measured value, correction of cross interferences, characteristics, measuring ranges as well as switching and control procedures. Protocols define the data transmission between the stations on the bus. A differentiation is made between cyclic and acyclic services. Cyclic services are used to transmit time-critical data such as measured values and statuses. The acyclic services permit the scanning or modification of device parameters during operation. All gas analyzers of Series, ULTRAAT, ULTRAAT/, / and CALOAT, as well as the ULTRAAT, are suitable for PROFIBUS when fitted with the optional plug-in card (retrofitting also possible, see Ordering information). Siemens Catalog Extract PA 0 November 00

9 9" unit Connections, assembly Gas and electrical connections Sample gas outlet Reference gas inlet Sample gas inlet -pin connector: Binary inputs and relay outputs 9-pin connector: RS 9-pin interface connector (option): e.g. PROFIBUS) Gas outlet Gas connections: stubs mm or ¼" -pin connector: Binary inputs and relay outputs Power supply and fuse -pin connector: Binary inputs and relay outputs Supply of reference gas Supply of sample gas Gas preparation (not included in delivery) 9 N Gas sampling device (heated if required) Sample gas line (heated if required) Gas cooler Coarse filter Fine filter Sample gas pump Control valve, flow regulator Flowmeter 9 Reference gas cylinder e.g. N with reduction valve and pressure gauge 0 Condensation drain 0 Fig., 9" unit, gas and electrical connections shown at top, typical installation shown at bottom Siemens Catalog Extract PA 0 November 00 9

10 9" unit Gas paths Internal gas paths, gas flow diagrams, basic layout A A 9 Sample gas inlet Sample gas outlet not used Reference gas inlet with filter and exhaust restrictor (reference gas pressure 00 hpa above sample gas pressure) Restrictor in reference gas inlet O physics Restrictor in sample gas path Pushbutton in sample gas path 9 Flowmeter in sample gas path A Excess reference gas (outlet restrictor) Option Fig. Gas path E with reference gas connection 00 hpa 0 Sample gas inlet Sample gas outlet not used Reference gas inlet with filter (reference gas pressure 000 to 000 hpa above sample gas pressure) Restrictor in reference gas inlet O physics Restrictor in sample gas path Pushbutton in sample gas path 9 Flowmeter in sample gas path Option 0 Pushbutton in reference gas path 9 Fig. Gas path E with reference gas connection 000 to 000 hpa 0 Siemens Catalog Extract PA 0 November 00

11 9" unit Electrical connection Pin assignment Connector SUB-D 9F (RS ) + V 9 R_Level-N- NC RD/TD-N RD/TD-P R_Level-P- NC NC Possibility for connection of bus terminating resistors to pins and 9. Connector SUB-D F 0 9 NC NC Analog output -P Analog output -N NC NC Analog input -P Analog input -N Analog input -P Analog input -N Binary input -P Binary input -P Binary input to -N Floating analog outputs (also with respect to one another), R L 0 W Pressure correction Pressure correction Interfering gas correction Interfering gas correction Non-floating analog inputs, 0 to 0 ma/00 W or 0 to 0 V (low-resistance) Connector SUB-D F Binary input -P Binary input -P Binary input -P Binary input -P Binary input to -N Relay Relay Relay Relay Relay Relay Floating via opto isolator "0" = 0 V (0 to. V) "" = V ( to V) Contact loading max. V/ A, AC/DC; relay contacts shown: de-energized relay coil Note: Cable and plug must be shielded and connected to chassis potential. Fig., 9 unit, pin assignment Siemens Catalog Extract PA 0 November 00

12 9" unit Electrical connection Pin assignment Connector SUB-D F (option) NC NC Binary input -P Binary input -P Binary input -P Binary input -P Binary input 0-P Binary input 9-P Binary input -P Binary input -P Binary input to -N Relay Relay Relay Relay Relay 0 Relay 9 Relay Relay floating via opto coupler "0" = 0 V (0 to. V) "" = V ( to V) Contact loading max. V/ A, AC/DC; relay contacts shown: de-energized relay coil Note: Cable and plug must be shielded and connected to chassis potential. Connector SUB-D 9F -X90 PROFIBUS-DP optional Connector SUB-D 9 -X90 PROFIBUS-PA 9 D CNTR-P/direction control RxD/TxD-P B RxD/TxD-N A VP /+ V 9 Pa-N(-) PA-P(+) (PA-N(-)) Fig. 9, 9 unit, pin assignment of Autocal board and PROFIBUS connectors Siemens Catalog Extract PA 0 November 00

13 9" unit Technical data Technical data General easuring ranges Smallest possible measuring span ) Largest possible measuring span easuring ranges with suppressed zero Position of use, switchable internally and externally; autoranging is also possible 0. % v/v, % v/v or % v/v O 00 % v/v O ( % v/v O for a pressure beyond 000 hpa) Any zero point is possible between 0 to 00 % v/v as long as a suitable reference gas is used Front panel vertical Conformity CE identification EN 00-, EN 00- Design, enclosure Degree of protection IP 0 according to EN 09 Dimensions see Fig. 0 Weight Approx. kg Electrical characteristics Power supply Power consumption EC interference immunity (Electroagnetic Compatibility) 00 to 0 V AC (rated range 90 V to V), to Hz or 00 to 0 V AC (rated range 0 V to V), to Hz Approx. VA According to standard requirements of NAUR NE (0/9) Electrical safety According to EN 00- overvoltage category III Fuses V:.0T/ V: 0.T/0 Gas inlet conditions Perm. sample gas pressure for analyzers with pipes 00 to 000 hpa absolute for analyzers with hoses - without pressure switch 00 to 00 hpa absolute - with pressure switch 00 to 00 hpa absolute Sample gas flow to 0 l/h (0. to l/min) Sample gas temperature 0 to 0 C Sample gas humidity < 90 % RH ) Time response Warm-up period Response time (T 90 time) Damping (electric time constant) Dead time (purging time of gas path in analyzer at l/min) Time for internal signal processing With ambient temperature < 0 min ) min.. to. s, depending on version 0 to 00 s, programmable Approx. 0. to. s depending on version < s ) Referred to 000 hpa absolute sample gas pressure, 0. l/min sample gas flow and C ambient temperature. ) RH: relative humidity. ) aximum accuracy achieved after hours. ) Dew point must not be fallen below. ) With air (00 hpa) as reference gas, a correction of the atmospheric pressure fluctuations is only possible when the sample gas is vented to ambient air. Pressure correction range Pressure sensor internal external easuring response ) Output signal fluctuation Zero drift easured-value drift Repeatability Linearity error Influencing variables ) Ambient temperature Sample gas pressure ) Residual gases Sample gas flow Power supply Electric inputs and outputs Analog output Relay outputs Analog inputs Binary inputs 00 to 000 hpa absolute 00 to 000 hpa absolute < 0. % of smallest possible measuring range specified on rating plate with an electronic time constant of s (corresponds to ± 0. % with σ) < 0. %/month of smallest possible measuring span specified on rating plate < 0. %/month of respective measuring span < %/month of respective measuring span < %/month of respective measuring span < 0. %/0 K referred to the smallest possible measuring span according to rating plate Without pressure compensation: < % of measuring span/ % change in pressure With pressure compensation: < 0. % of measuring span/ % change in pressure Deviation in zero point corresponding to paramagnetic or diamagnetic deviation of residual gas (see Table, page ) < % of smallest possible measuring span according to rating plate with a change in flow of 0. l/min within the permissible flow range < 0. % of output signal span with rated voltage ± 0 % 0// to 0 ma, floating; max. load 0 Ω, with changeover contacts, freely selectable, e.g. for range identification; loading capacity: V AC/DC/ A, floating, designed for 0// to 0 ma, for external pressure sensor and correction of influence of residual gas (correction of cross interference), designed for V, floating, freelyselectable, e.g. for range switching Serial interface RS Options Autocal function with binary inputs and relay outputs, also with PROFIBUS-PA or PROFIBUS-DP Ambient conditions Perm. ambient temperature Permissible humidity -0 to +0 C during storage and transport, + to + ºC during operation < 90 % RH ) as annual average, during storage and transport ) Siemens Catalog Extract PA 0 November 00

14 9" unit Dimensions Dimensions.... 0, Fig. 0, 9 unit, dimensions in mm Siemens Catalog Extract PA 0 November 00

15 9" unit Ordering data Ordering data gas analyzer 9 unit for installation in cabinets Order No. B cannot be combined Gas connections for sample gas and reference gas Piping with outer diameter mm 0 Piping with outer diameter ¼" Smallest possible span O 0. % Reference gas pressure 000 hpa A 0. % Reference gas pressure 00 hpa (external pump) B B B % Reference gas pressure 000 hpa C % Reference gas pressure 00 hpa (external pump) D D D % Reference gas pressure 000 hpa E % Reference gas pressure 00 hpa (external pump) F F F Sample cell Without flow-type compensation branch - ade of stainless steel, type No.. A - ade of tantalum B With flow-type compensation branch - ade of stainless steel, type No.. C C - ade of tantalum D D Internal gas paths Viton hose 0 Titanium piping Pipe made of stainless steel Power supply 00 V to 0 V AC, to Hz 0 00 V to 0 V AC, to Hz onitoring (reference gas, sample gas) Without A Only reference gas B B Reference gas and sample gas (with flowmeter and C C C pressure switch for sample gas) Sample gas only D D Additional electronics Without A With additional binary inputs and outputs B With serial interface for the automotive industry (AK) D Additional electronics with binary inputs/outputs E and PROFIBUS-PA interface Additional electronics with binary inputs/outputs F and PROFIBUS-DP interface Language German 0 English French Spanish Italian Siemens Catalog Extract PA 0 November 00

16 9" unit Ordering data Ordering data (continued) Further versions Please add -Z to Order No. and specify Order code RS /RS converter Slide rails ( rails) Set of Torx tools, socket spanner Kalrez gaskets in sample gas path TAG labels (customer-defined inscriptions) Customer acceptance (in factory before delivery) ) Clean for O service (specially cleaned gas path) Drift recording ) easuring range in plain text, if different from standard setting ) TÜV version according to.blmsch Pressure attenuator (to reduce pump pressure pulses) Retrofitting sets RS /Ethernet converter RS /RS converter Additional electronics with binary inputs/outputs Additional electronics with binary inputs/outputs and PROFIBUS-PA Additional electronics with binary inputs/outputs and PROFIBUS-DP Order code A A A B0 B0 Y0 Y0 Y0 Y Y Y0 C9-A-D C9-Z9-U C9-A0-D AE0000 AE000 ) Customer acceptance: ½ day at factory in presence of customer. The following work is carried out: comparison of analyzer with ordering data; linearization check (zero, mid-point value and full-scale value); reproducibility check with calibration gas (recording in each case on XT recorder, logging of results). ) Drift recording: an XT recording is supplied when the analyzer is delivered: zero drift with hours continuous operation and sensitivity drift (largest measuring range) with hours continuous operation. ) Standard setting: easuring range : 0 to smallest possible span easuring range : 0 to 0 % easuring range : 0 to % easuring range : 0 to 00 %. Siemens Catalog Extract PA 0 November 00

17 Field unit Connections, assembly Gas and electrical connections (unit underside) a b c d e Gas connections Electric connections not used Sample gas inlet Reference gas inlet Sample gas outlet Clamping ring connection for pipe Ø mm or ¼" a - c d e Signal line (analog + digital): Pg Interface connection: Pg. Power connection: Pg. - Purging gas inlets/outlets Stubs Ø 0 mm or ¼ " Gas preparation (not included in delivery) 9 Gas sampling device (heated if required) Sample gas line (heated if required) Gas cooler Coarse filter Fine filter Sample gas pump Control valve, flow regulator Flowmeter 9 Reference gas supply synthetic air or N from gas cylinder) 0 Condensation drain 0 Fig., field unit, gas and electrical connections shown at top, external installation preparation (example) shown at bottom Siemens Catalog Extract PA 0 November 00

18 Field unit Gas paths Internal gas paths, gas flow diagrams, basic layout A not used Sample gas inlet Reference gas inlet with filter and exhaust restrictor (reference gas pressure 00 hpa above sample gas pressure) Sample gas outlet Restrictor in reference gas inlet O physics Restrictor in sample gas path A Excess reference gas (outlet restrictor) Fig. Gas path F with reference gas connection 00 hpa (e.g. external pump) not used Sample gas inlet Reference gas inlet with filter (reference gas pressure 000 to 000 hpa above sample gas pressure) Sample gas outlet Restrictor in reference gas inlet O physics Restrictor in sample gas path Pressure switch in sample gas path (option) Fig. Gas path F with reference gas connection 000 to 000 hpa Siemens Catalog Extract PA 0 November 00

19 Field unit Electrical connection Pin assignment Connector SUB-D 9F (RS ) + V 9 R_Level-N- NC RD/TD-N RD/TD-P R_Level-P- NC NC Possibility for connection of bus terminating resistors to pins and 9 Terminal block A 00 W Relay Relay Relay Relay Relay Relay Binary input to -N Binary input -P Binary input -P Binary input -P Binary input -P Binary input to -N Binary input -P Binary input -P Analog input -N Analog input -P Analog input -N Analog input -P NC Analog output -N Analog output -P NC NC Contact loading max. V/ A, AC/DC; relay contacts shown: de-energized relay coil Floating via opto isolator "0" = 0 V (0 to. V) "" = V ( to V) Floating via opto isolator "0" = 0 V (0 to. V) "" = V ( to V) Interfering gas corr. Non-floating Interfering gas corr. analog inputs, 0 to 0 ma or Pressure correction 0 to 0 V (lowresistance 00 Pressure correction W) Analog outputs floating Note: Cable and plug must be shielded and connected to chassis potential. Fig., field unit, connector and terminal assignment Siemens Catalog Extract PA 0 November 00 9

20 Field unit Electrical connection Pin assignment (continued) Terminal block B (option) Relay Relay Relay 9 Relay 0 Relay Relay Relay Relay NC Binary input to -N Binary input -P Binary input -P Binary input 9-P Binary input 0-P Binary input -P Binary input -P Binary input -P Binary input -P NC Contact loading max. V/ A, AC/DC; relay contacts shown: de-energized relay coil Floating via opto isolator "0" = 0 V (0 to. V) "" = V ( to V) Note: Cable and plug must be shielded and connected to chassis potential. Connector SUB-D 9F -X90 PROFIBUS-DP optional Connector SUB-D 9 -X90 PROFIBUS-PA 9 D CNTR-P/direction control RxD/TxD-P B RxD/TxD-N A VP /+ V 9 Pa-N(-) PA-P(+) (PA-N(-)) Fig., field unit, connector and terminal assignment of the Autocal board and PROFIBUS connectors 0 Siemens Catalog Extract PA 0 November 00

21 Field unit Technical data Technical data General easuring ranges Smallest possible measuring span ) ) Largest possible measuring span easuring ranges with suppressed zero Position of use, switchable internally and externally; autoranging is also possible 0. % v/v, % v/v or % v/v O 00 % v/v O ( % v/v O for a pressure beyond 000 hpa) Any zero point is possible between 0 to 00 % v/v as long as a suitable calibration gas is used (see also Table ) Front panel vertical Conformity CE identification EN 00-, EN 00- Design, enclosure Dimensions see Fig. Weight Approx. kg Degree of protection IP according to EN 09 restricted breathing to EN 00 Electrical characteristics Power supply Power consumption EC interference immunity (Electroagnetic Compatibility) Electrical safety heated analyzers non heated analyzers Fuses (unit without heater) V V Fuses (unit with heater) V V Gas inlet conditions Perm. sample gas pressure with hoses with pipes, Ex version - Leakage compensation - Continuous purging Purging gas flow permanent for short periods Sample gas flow Sample gas temperature Sample gas humidity Time response Warm-up period Reading delay time Damping (electric time constant) Dead time (purging time of gas path in analyzer at l/min) Time for internal signal processing 00 to 0 V AC (rated range 90 V to V), to Hz or 00 to 0 V AC (rated range 0 V to V), to Hz Approx. VA; with heated unit approx. 0 VA According to standard requirements of NAUR NE (0/9) According to EN 00- overvoltage category II overvoltage category III F: T/0 F: T/0 F: 0.T/0 F: 0.T/0 F: T/0 F: T/0 F: T/0 F: T/0 F: 0.T/0 F:.T/0 F:.T/0 F:.T/0 00 to 00 hpa absolute 00 to 0 hpa absolute 00 to 000 hpa absolute < hpa above ambient max. 0 hpa above ambient to 0 l/h (0. to l/min) 0 to 0 C (without heater), or to C over temperature of analyzer section (with heater) < 90 % relative humidity With ambient temperature < 0 min ) T 90 <. s 0 to 00 s, programmable Approx. 0. s < s Pressure correction range Pressure sensor internal external easuring response ) Output signal fluctuation Zero drift easured-value drift Repeatability Linearity error Influencing variables ) Ambient temperature Sample gas pressure ) Residual gases Sample gas flow Power supply Electric inputs and outputs Analog output Relay outputs Analog inputs Binary inputs 00 to 000 hpa absolute 00 to 000 hpa absolute < 0. % of smallest possible measuring range specified on rating plate with an electric time constant of s (corresponds to ± 0, % with σ) < 0. %/month of smallest possible meas. span specified on rating plate < 0.%/month of respective span < %/month of respective span < %/month of respective span < 0.%/0 K referred to the smallest possible measuring span according to rating plate With no pressure compensation: < % of measuring span/ % change in pressure With pressure compensation: < 0. % of measuring span/ % change in pressure Deviation in zero point corresponding to paramagnetic or diamagnetic deviation of residual gas < % of smallest possible measuring span according to rating plate with a change in flow of 0. l/min within the permissible flow range; up to double error for analyzer with heater (< %) ) < 0. % of output signal span with rated voltage ± 0 % 0// to 0 ma, floating; max. load 0 Ω, with changeover contacts, freely selectable e.g. for range identification; loading capacity: V AC/DC / A, floating, designed for 0// to 0 ma, for external pressure sensor and correction of residual gas (correction of cross interferences), designed for V, floating, freelyselectable e.g. for range switching Serial interface RS Options Autocal function with binary inputs and relay outputs, also with PROFIBUS-PA or PROFIBUS-DP Ambient conditions Perm. ambient temperature Permissible humidity -0 to +0 C during storage and transport, + to + ºC during operation < 90 % rel. humidity as annual average, during storage and transport ) ) Referred to 000 hpa absolute sample gas pressure, 0. l/min sample gas flow and C ambient temperature. ) aximum accuracy achieved after hours. ) Dew point must not be fallen below. ) With air (00 hpa) as reference gas, a correction of the atmospheric pressure fluctuations is only possible when the sample gas is vented to ambient air. ) Smallest possible span with a heated analyzer: 0. % (< C); 0. to % ( to 90 C); to % (90 to 0 C). Siemens Catalog Extract PA 0 November 00

22 Field unit Dimensions Dimensions ø. 0 0 Fig., field unit, dimensions in mm Siemens Catalog Extract PA 0 November 00

23 Field unit Ordering data Ordering data gas analyzer for field mounting Order No. B cannot be combined Gas connections for sample gas and reference gas Clamping ring connection of stainless steel (type No..) - Piping with outer diameter mm 0 - Piping with outer diameter ¼" Clamping ring connection of titanium - Piping with outer diameter mm - Piping with outer diameter ¼" Piping and gas connections with Hastelloy C: B Order code D0 or D0 Smallest possible span O 0. % Reference gas pressure 000 hpa A A 0. % Reference gas pressure 00 hpa (external pump) B B B B B % Reference gas pressure 000 hpa C % Reference gas pressure 00 hpa (external pump) D D D D % Reference gas pressure 000 hpa E % Reference gas pressure 00 hpa (external pump) F F F F Sample cell Without flow-type compensation branch - ade of stainless steel, type No.. A - ade of tantalum B With flow-type compensation branch - ade of stainless steel, type No.. C C - ade of tantalum D D Heating of internal gas paths and analyzer section Without 0 With ( to 0 C) Power supply 00 V to 0 V AC, to Hz V to 0 V AC, to Hz 00 V to 0 V AC, to Hz, to ATEX 00, hazardous zone ) (protection mode: leakage compensation) 00 V to 0 V AC, to Hz, to ATEX 00, hazardous zone ) (protection mode: leakage compensation) 00 V to 0 V AC, to Hz, to ATEX 00, hazardous zone ) (operating mode: continuous purging) 00 V to 0 V AC, to Hz, to ATEX 00, hazardous zone ) (operating mode: continuous purging) Reference gas monitoring Without A With B Additional electronics Without A A With additional binary inputs and relay outputs B B Additional electronics with binary inputs/outputs E E and PROFIBUS-PA interface Additional electronics with binary inputs/outputs and PROFIBUS-DP interface F F With additional electronics for connection to PROFIBUS-PA Ex i G G Language (supplied documentation, software) German 0 English French Spanish Italian ) Only in relation with an approved purging unit. Siemens Catalog Extract PA 0 November 00

24 Field unit Ordering data Ordering data (continued) Further versions Please add -Z to Order No. and specify Order code RS /RS converter Set of Torx tools, socket spanner Kalrez gaskets in sample gas path TAG labels (customer-defined inscriptions) Gas connections and piping made of Hastelloy C, external diameter mm Gas connections and piping made of Hastelloy C, external diameter ¼" Certificate: ATEX 00; II G EEx nr; restricted breathing (Ex zone ) (only for gas compound < LEL) Certificate: ATEX 00; II /G EEx nrp; (Ex zone ) ) Customer acceptance (in factory before delivery) ) Clean for O service (specially cleaned gas path) Drift recording ) Customer acceptance explosion-protected units incl. BARTEC purging enclosure easuring range in plain text, if different from standard setting ) Additional units for explosion-proof versions, ATEX category G (zone ) Bartec EEx p control unit, 0 V, Leakage compensation Bartec EEx p control unit, V, Leakage compensation Bartec EEx p control unit, 0 V, Continuous purging Bartec EEx p control unit, V, Continuous purging Explosion-protected isolation amplifier Explosion-protected isolating relay Differential pressure switch for corrosive gases Differential pressure switch for non-corrosive gases Flame inhibitor made of stainless steel Flame inhibitor made of Hastelloy Supplementary units for Ex versions, ATEX category G (zone ) Ex purging unit inipurge F Bartec EEx p control unit (for units with Order code E) Retrofitting sets RS /Ethernet converter RS /RS converter Autocal function with binary inputs/outputs Autocal function with binary inputs/outputs and PROFIBUS-PA Autocal function with binary inputs/outputs and PROFIBUS-DP Autocal function with binary inputs/outputs and PROFIBUS-PA Ex i (requires Firmware..0) Order code A A B0 B0 D0 D0 E E Y0 Y0 Y0 Y0 Y Order No. B000-BA B000-BB B000-CA B000-CB B000-AA B000-AA B000-AA B000-AB B000-AA B000-AB Order No. B000-AA B000-BA Order No. C9-A-D C9-Z9-U AE000 AE000 AE000 AE000 ) Customer acceptance: ½ day at factory in presence of customer. The following work is carried out: comparison of analyzer with ordering data; linearization check (zero, mid-point value and full-scale value); reproducibility check with calibration gas (recording in each case on XT recorder, logging of results). ) Drift recording: an XT recording is supplied when the analyzer is delivered: zero drift with hours continuous operation and sensitivity drift (largest measuring range) with hours continuous operation. ) Standard setting: easuring range : 0 to smallest possible span easuring range : 0 to 0 % easuring range : 0 to % easuring range : 0 to 00 %. ) Only in relation with an approved purging unit. Siemens Catalog Extract PA 0 November 00

25 Explosion-proof design Explosion-proof design Use of the in hazardous areas Suitability-tested field analyzers of series must be used to measure gases in hazardous areas. The preferred explosion protection for these analyzers is the pressurized enclosure EEx p for zone or the simplified pressurized enclosure EEx n P for zone. In addition, these analyzers must be connected to monitoring equipment which must also be suitabilitytested for zone. Exception: a pressurized enclosure is not required in zone for the measurement of gases whose composition always remains below the lower explosion limit (LEL); in this case it is sufficient for the field housing to be gas damp-proof (type of protection EEx n R). Following pre-purging of minutes, the monitoring equipment ensures that no gas damp can enter the housing, and accumulation of the sample gas in the housing is prevented. The volume flow during the pre-purging phase is > 0 l/min. The protective gas is usually fed into the analyzer housing from a supply network via the monitoring equipment. Ex zone Two versions of pressurized enclosure EEx p complying with directive 9/9/EC are available for use in zone : Pressurized enclosure with compensation of losses resulting from leaks Only that volume of protective gas required to hold an overpressure of at least 0 Pa compared to the sample gas pressure and atmospheric pressure is fed into the housing. The maximum purging gas pressure is hpa; this causes a max. permissible sample gas pressure of 0 hpa. Test certificate: PTB 00 ATEX 0 X Analyzer identification: II G EEx p [ia] ia IIC T Pressurized enclosure with continuous purging Protective gas continuously flows through the housing with a volume flow of at least l/min; furthermore, the flow results in an overpressure in the housing of at least 0 Pa compared to atmospheric pressure. The max. permissible purging gas pressure is hpa. The max. permissible sample gas pressure is equivalent to the analyzer sample gas pressure. Test certificate: TÜV 0 ATEX 0 X Analyzer identification: II G EEx p [ia] ia IIC T The fundamental safety requirements are satisfied by compliance with the European standards EN 00:99, EN 00:99, EN 000:99 and EN 9:99. The EExp monitoring equipment is a stand-alone unit which is connected electrically and pneumatically to the analyzer. Ex protection is only provided when these two units are connected together. Ex zone Two versions complying with directive 9/9/EC are available for use in zone : Ex protection resulting from gas damp-proof housing The housing is sealed sufficiently such that gas damp cannot penetrate. With this type of protection, only sample gases may be connected which are below the LEL. Test certificate: TÜV 0 ATEX X Analyzer identification: II G EEx n R II T Simplified pressurized enclosure with continuous purging This type of protection must always be selected if flammable gases or gas mixtures are to be connected. Protective gas continuously flows through the housing with a volume flow of at least l/min; furthermore, the flow results in an overpressure in the housing of at least 0 Pa compared to atmospheric pressure. anually controlled pre-purging with the analyzer power supply switched off is sufficient for the simplified pressurized enclosure. It is not necessary for the analyzer to be switched off automatically should the protective gas fail. Test certificate: TÜV 0 ATEX 9 X Analyzer identification: II / G EEx n P II T The fundamental safety requirements are satisfied by compliance with the European standards EN 00:999, EN 009:99, Sec. and ZH /0, Sec.. The EEx np monitoring equipment is a stand-alone unit which is connected electrically and pneumatically to the analyzer. Ex protection is only provided when these two units are connected together. F Class Div The same applies here as to the simplified pressurized enclosure with continuous purging; the required Ex protection is only provided when appropriate equipment is connected. Type of protection and flame inhibitor It generally applies that selection of the protective gas and use of flame inhibitors depend on the type of sample gas: Connection of combustible gases above the LEL always require an inert gas (e.g. N ) as the protective gas. Furthermore, the process must be protected by flame inhibitors if it cannot be excluded that explosive gas mixtures could occasionally be present in the sample gas path. Gas mixtures which could be frequently or permanently explosive must not be connected! With gases below the LEL, air can also be used as the protective gas, and flame inhibitors can be omitted. Siemens Catalog Extract PA 0 November 00

26 Explosion-proof design Explosion-proof design Type of gas Sample gas non-flammable or permanently below the lower explosive limit (LEL) Sample gas seldom above LEL, and only briefly in such cases Sample gas occasionally above LEL Zone 0 Not possible Not possible Not possible Analyzer in ATEX 00a - EEx p version Analyzer in ATEX 00a - EEx p version Analyzer in ATEX 00a - EEx p version etal pipe for gas path etal pipe for gas path etal pipe for gas path Flame inhibitors in sample gas inlet and outlet EEx p control unit in mode "Leakage compensation" Analyzer in field housing with degree of protection EEx nr (restricted breathing enclosure) etal pipe for gas path Sample gas pressure < hpa, fail-safe: EEx p control unit in mode "Leakage compensation" Differential pressure switch (if the sample gas pressure is not controlled fail-safe) Sample gas pressure occasionally > hpa: EEx p control unit in mode "Continuous purging" Analyzer in field enclosure with degree of protection EEx np etal pipe for gas path Simplified pressurized enclosure with continuous purging with inert gas or EEx nrp (restricted breathing enclosure for electronics unit, and simplified pressurized enclosure for physical unit with continuous purging with inert gas) Sample gas pressure < hpa, fail-safe: EEx p control unit in mode "Leakage compensation" Differential pressure switch (if the sample gas pressure is not controlled fail-safe) Sample gas pressure occasionally > hpa: EEx p control unit in mode "Continuous purging" Analyzer in field enclosure with degree of protection EEx np etal pipe for gas path Flame inhibitors in sample gas inlet and outlet Simplified pressurized enclosure with continuous purging with inert gas Table Explosion-proof configuration Principle selection criteria Additional units (Ex zone ) Signal line guide Ex Ex Ex Ex Ex Ex free Ex-i isolation amplifier required conditional use (when energy recovery cannot be excluded) Isolating relay required not required not required Pressure switch non-flammable gases not required flammable gases required (when customer pressure is not controlled fail-safe) Flame inhibitors see above conditional use (when energy recovery cannot be excluded) Table Additional units Siemens Catalog Extract PA 0 November 00

27 Description Leakage compensation Technical data The APEX 00.SI/A control unit controls and monitors the Guidelines prepurging phase and the operating phase of gas analyzers with Containment Systems. The control unit redundantly monitors the set overpressure of the Design purging gas. When the overpressure decreases, it is corrected to the adjustable setpoint (max. purging gas pressure hpa). programmable relay outputs and relay contacts are available to interrupt the data lines. Additional function Due to the connection of additional pressure sensors, the internal pressure of the enclosure is maintained at a pressure higher than the sample gas with a proportional valve. During the prepurging phase the purging gas flow is max. 00 Nl/h with an internal enclosure pressure of 0 hpa. programmable relay inputs and relay contacts are available to separate the data lines. Fig. Analyzer EEx p control unit BARTEC control unit, gas connection diagram Explosion-proof design, Ex zone BARTEC EEx p control unit EC EC guideline 9//EEC EC low voltage RL //EWG Ex guideline 9/9EC Explosion-protected enclosure (EEx e) with viewing window in the cover glas-fiber reinforced polyester Enclosure material Degree of protection IP Terminals. mm, stranded conductor Pressure sensors IN A = 0 to 00 hpa IN B = 0 to 00 hpa AX = 0 to 00 hpa AX = 0 to 00 hpa DIFF A = 0 to hpa DIFF B = 0 to hpa Prepurging time 0 to 99 min; s delayed Weight kg Electrical data Supply voltage 0 V AC ( V AC) Power consomption W /0 V NO contact K/; max. 0 V, A with cos ϕ =, K/K; supply voltage or floating, max. 0 V, A with cos ϕ = Communication RS interface Temperature switching value 0 to + 0 C (option) Explosion-protected type arking EEx e d ib [ia p] IIC T/T Certification DT 99 ATEX E 0 Ambient temperature -0 to +0 C Sensor module Ext. Temperature P-switch sensor Key switch ON/OFF switch Ext. Jumper for P-sensoradjustment 00 0 EEx i Control module K/K 0 K K/K L N PE Data line Output valve Inlet valve Data line EEx p analyzer Supply voltage Fig. BARTEC control unit, electric connection diagram Fig. 9 BARTEC control unit, dimensions in mm Siemens Catalog Extract PA 0 November 00