Siemens FX300 Electrical Connections, Maximum frequency of the pulse output is fmax = 0.5 Hz

Page 35

SITRANS FX300

ELECTRICAL CONNECTIONS 4

The pulse output is a passive "open collector" output which is electrically separated from the current interface and the measuring sensor. It can be configured as a high current output or NAMUR output using a jumper on the amplifier board.

Jumper in NAMUR setting

Ri = 900 Ω

Umax = 36 VDC

The maximum frequency of the pulse output is fmax = 0.5 Hz

Jumper in high current setting

Open:	Maximum voltage Umax = 36 VDC	Closed current IR < 1 mA
Closed:	Maximum current Imax = 100 mA	Voltage U < 2 VDC

The maximum frequency of the pulse output is fmax = 0.5 Hz

Figure 4-4: Jumper settings pulse output

1Electronic insert

2Jumper on board

3Jumper in high current setting

4Jumper in NAMUR setting

06/2009 - SFIDK.PS.050.F2.02 A5E02100423

www.siemens.com/flow

35

Image 35

Contents Page Imprint Contents Contents Technical data Devices are rated for the following flow velocities Safety InstructionsIntended use Devices are particularly suitable for the measurementCE marking CertificationsDisclaimer Safety instructions from the manufacturerCopyright and data protection Information concerning the documentation Product liability and warrantySafety warnings are indicated by the following symbols Safety instructions for the operatorFollowing designs are available as options Scope of deliveryInstrument versions Devices come in the following versionsSandwich version Devices with connection flangeFree air delivery measurement FAD optional Gross heat meter Dual seal Nameplate Transport StorageInstallation condtitions InstallationMeasurement of liquids Prohibited installationRecommended installations for measurement of liquids Measurement of vapours and gases Prohibited installationPreferred mounting position Pipelines with control valvePreferred mounting position Allen screws on connection housing Turning the connection housingTurn the display as follows Turning the displayHeat insulation Minimum inlet runs Inlet and outlet runsFlow straightener Minimum outlet runsGeneral installation notes InstallationInstalling devices in flange design Installing devices in sandwich design Electrical Connections Safety instructionsElectrical Connections Following procedures are to be performedMaximum load resistance is calculated as follows Electrical connection of current and pulse outputTotalizer / pulse output Power supplyMaximum frequency of the pulse output is fmax = 0.5 Hz Electrical ConnectionsGrounding connections Therefore it is essential to observe the following points Protection categoryStart-up and control START-UPStart Display and operating elements OperationFunctional description of the keys Switch from measuring mode to menu modeOperation Operating principlesNavigation within the menu structure Changing the settings in the menuChanging units Example Measures in the event of faulty indicationsTotalizer / pulse output Max. pulses per hourLevel Designation Explanation Volume Standard volume Mass Liquids, steams, gases Air GasOverview of the most important functions and units Temp Absolute Power Energy Density Pressure Over Volume Standard volume Mass Liquids, steams, gases GasError message Cause Measure Error messagesOverview of firmware versions Menu structureCharacter selection in change mode Entering values in change modeMenu item Quick Setup Test current is maintained until the menu has been exited Menu item TestsLevel Designation Selection / entry Explanation Menu item Setup firmware version basic Hart SV Operation Menu item Setup firmware version steam Reset heat energy Hart tertiary variable Temp. ↑ Pressure ↑ Density Operation Menu item Setup firmware version gas Hart SV RPM Pressure, temperature and density Operation Following steps are to be performed Replacing signal converter / LCD displayReturning the device to the manufacturer ServiceAvailability of services Spare parts availabilityForm for copying to accompany a returned device Functional principle Technical DataMeasuring accuracy Technical dataMeasuring system Materials Installation conditionsOperating conditions Approvals and certifications Process connectionsElectrical connections Flange version EN Dimensions and weightsFlange versions Technical Data NPS Flange version Asme B16.5Sandwich version EN With Without Pressure sensor Size Pressure Dimensions inches Weight lbs RatingSandwich version Asme Air Flow tablesMeasuring ranges WaterFt/s Flow rate limitsProduct Nominal sizes Minimum flow rates Maximum flow rates 1092-1 Measuring range saturated steam 1...7 barMeasuring range saturated steam 10.5...20 bar Kg/hLbs/h Measuring range saturated steam 15...100 psigMeasuring range saturated steam 150...300 psig Sitrans FX300