Flash Point Process Analyzer

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2 Norms and standards ASTM D 56 ASTM D 93; DIN EN ISO 2719; IP 34 DIN EN ISO 13736; IP170 DIN Application The BARTEC BENKE Flash Point Process Analyzer (FPA-4) is a continuously measuring analyzer, suited to measure the flash point (FP) of a liquid phase. It correlates with laboratory measurements. The analyzer has to be calibrated with a sample of known flash point temperature. In case of multi stream use, the calibration needs to be carried out for each single stream. The flash point temperature is defined as the lowest temperature at which application of an ignition source causes the vapors of a specimen of the sample to ignite under specified conditions of test. establishing ignition specification for fuels: - Automotive diesel fuel for internal combustion engines - heating oil determination of safety limitations (fire hazards/ explosion risk) for storage and handling detection of contamination by light ends monitoring of stripping processes Measurement principle The FP analysis is based on a catalytic oxidation. The FPA-4 is first calibrated by means of a sample with known FP. The sample is mixed with preheated combustion air, both having constant flow rates, and continuously fed to the measurement cell. It is then heated up until the sample temperature in the cell reaches the known FP. At this time, the detector signal level is registered, as it corresponds to the FP of the known sample. In routine operation, the sample is heated up until the detector signal level reaches the value registered during the calibration procedure. Then the sample temperature is measured in the cell, as it represents the FP of the sample under investigation. Excess sample passes to drain (overflow). The sample vapor is vented to atmosphere. The detector signal controls the incoming sample temperature. The complete analysis procedure is controlled, monitored and visualized by the Process Analyzer Control System (PACS) software. It offers a user interface for local analyzer operation and for the regeneration function of the detector. The FP value is transferred via the standard analog 4-20 ma output. A digital output signal will be generated (come read). Additional outputs and a MODBUS interface, which allows direct control of the analyzer from the DCS, are available as an option. If remote access is demanded, the FPA analyzer can be equipped with a remote access interface (e.g. Modem, ISDN) for service and maintenance purposes. Status / page 2 / 8

3 Continuous Flash Point Process Analyzer Analyzer type Method FPA-4 Correlates with ASTM D 56, ASTM D 93 by continuous measurement (catalytic combustion) Measurement ranges Within 30 C 120 C or within 80 C 160 C / ma x. FP 160 C Reproducibility Repeatability Measurement cycle ASTM ASTM Continuously operated Ambient temperature 5 C - 40 C Ambient humidity Max. 70%, non - corrosive Sample at analyzer inlet General conditions Flow rate Pressure Inlet temperature Outlet / vent Max. viscosity at FP not to exceed 200 cst 2 l/h - 3 l/h 150 kpa kpa min. 15 C below expected FP Open to atmosphere Utilities Cooling water Clean cold water, temperature depending on measuring point 20 l/h - 60 l/h / 1 bar - 3 bar Power supply Instrument air (inlet) Combustion air See Specification of purged electronic housing See Specification of purged electronic housing At least Humidity class 2 acc. to ISO (dew point - 40 C) Electrical signals Output signals System alarm Valid signal 1 x 4 20 ma, 800 Ω out; (standard), additional outputs on request Digital output / potential-free Digital output / potential-free Status / page 3 / 8

4 Options Validation request Analyzer reset Input signal MODBUS Remote access interface Closed loop chiller Chiller alarm Digital input Digital input 1 x 4 20 ma, 200 Ω in; (electrically isolated) RS485 or fiber optics Modem (V 90 analog) or ISDN If no suitable cooling water is available at place of installation Digital output / potential-free Communication Display Mouse / Keyboard Color LC display 800 x 600 pixel Virtual keyboard, operated via mouse in front door Software Operating system MS Windows 2000 Explosion protection PACS Software, optional Remote Control Software Protection type II 2 G EEx pd (IIA; IIB; IIB+H 2 ) T3 or T4 Certificate number TÜV 03 ATEX 2222 (Protection type depending on application) Optional available: Classification (USA and CAN) Class I, Div. 2, Groups B, C and D Class I, Zone 1, Groups IIA or IIB or IIB+H2 CSA Certificate of Compliance Standard connections Tube fittings 6 / 12 / 18 mm metric SWAGELOK, other types available on request Cable entries M20 x 1,5 / M25 x 1,5 Weight Approx. 300 kg Dimensions (L x D x H) in mm Mounting Rack 1140 x 710 x 2100 Important Notice: FPA-4 is subject to continuous product improvement, specifications may be subject to change without notice. Status / page 4 / 8

5 Specification of the air purged electronic housing System type PAGS 96-1 (Process Analyzer Housing System) Version number Protection type Certificate number II 2 G EEx p II T4 TÜV 96 ATEX 1132X EC identification number 0032 Housing volume Approx. 200 dm 3 Dimensions (L x D x H) in mm 515 x 470 x 800 Protection class Power supply Power consumption Maximum power loss Ignition prevention gas IP65 (with a Vortex chiller IP54) 230 VAC / 50 Hz and 400 VAC / 3phs (standard), other on request Approx. 2 kw in total (analyzer approx. 700 W / optional chiller approx. 1300W) 515 W Instrument air (dry and oil free) 2 bar - 5 bar (for EEx p system) Instrument air (inlet) 4 bar - 4,5 bar (for valves) dew point - 40 C (humidity class 2 or better acc. to ISO ) Housing overpressure Shut down overpressure Instrument air consumption 3 bar - 4 mbar (operating pressure inside) 0,8 mbar (lower limit of operating pressure inside) Min.1,4 Nm 3 per flushing cycle during start-up (7 x housing volume) In normal operating mode only for leak-compensation. Important Notice: FPA-4 is subject to continuous product improvement, specifications may be subject to change without notice. Status / page 5 / 8

6 Figure 1: Main panel of process software Figure 2: Status of analog and digital In- and Outputs Status / page 6 / 8

7 Test Run 12 Hours Test Run on Kerosene FP [ C] : : : : : : : :10 Status / page 7 / 8

8 Legende: A: Flame arrestors B: Touch Screen C: Controller module D: Key switch E: Digital valve F: Junction box G: Sampling system (option) H: Closed loop chiller (Option) Connections for sample and validation fluid (option) Figure 3: Layout drawing of the FPA-4 (Example; incl. optional sample conditioning system and chiller) BARTEC BENKE GmbH Borsigstrasse 10 D Reinbek / Hamburg Phone +49 (0) Fax +49 (0) Internet Status / page 8 / 8