Related Manuals for Siemens SITRANS P 7MF4232
Summary of Contents for Siemens SITRANS P 7MF4232
- Page 1 SITRANS P Absolute pressure transmitter, DS series (Smart) 7MF4232 Operating Instructions C79000-B5676-C92-01...
- Page 2 SIPART, SITRANS, SIMATIC are Siemens registered trademarks. All other product or system names are (registered) trademarks of their respective owners and must be treated accordingly. The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages.
- Page 3 SITRANS P Absolute pressure transmitter, DS series (Smart) (from the pressure transmitter series) 7MF4232 Operating Instructions...
- Page 4 Operating Instructions 7MF4232 C79000-B5676-C92-01...
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Page 5: Table Of Contents
7MF4232 Operating Instructions Contents Page Technical Description ..........Range of Application . - Page 6 The contents of this instruction manual shall not become part of or modify any prior or existing agreement, commitment or relationship. The Sales Contract contains the entire obligations of Siemens. The warranty contained in the contract between the parties is the sole warranty of Siemens. Any statements contained herein do not create new warranties or modify the existing warranty.
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Page 7: Technical Description
7MF4232 Operating Instructions Technical Description Range of Application The Smart version of the SITRANS P transmitter measures the absolute pressure of non-aggressive and aggressive gases, steam and liquids. Measuring spans between 8.3 mbar and 30 bar are possible. The output signal is a load-independent direct current of 4 to 20 mA which is linearly proportional to the absolute pressure. - Page 8 Operating Instructions 7MF4232 Output current Auxiliary power Input variable pressure Process cover μC Overload diaphragm Filling liquid Silicon absolute pressure sensor Measuring amplifier Analog-Digital converter Microcontroller Digital-Analog converter Digital indicator Analog indicator (option) Figure 1.1 SITRANS P absolute pressure transmitter, function diagram 230 Ω...
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Page 9: Technical Data
7MF4232 Operating Instructions Technical Data Functional data Measuring spans and overrange limits Variable measuring spans Overrange limits 250 mbar ≙ 0.83 25 kPa 6 bar 1300 mbar ≙ 130 kPa 10 bar 5000 mbar ≙ 500 kPa 30 bar 1000 30000 mbar ≙... - Page 10 Operating Instructions 7MF4232 Load – 11 V R ≤ in Ω, 0, 023 A : auxiliary power in V 230 to 500 Ω for communication with PC/Laptop 230 to 1100 Ω for communication with ≥230 Ω HARTR-Communicator Electrical damping variable time constant 0 to 100 s Current sensor adjustable 3.6 mA to 22.8 mA...
- Page 11 7MF4232 Operating Instructions Instrument design 1) 2) Electrical connection Screw terminals or connector Han 7 D For screw terminals cable inlet via 1) 2) compression gland Pg 13.5 female thread M20¢1.5 female thread --14 NPT Not in flame- -proof enclosure type of protection Not in FM exp/CSA exp type of ignition protection Type of protection according to EN 60529 IP65...
- Page 12 Operating Instructions 7MF4232 Flame--proof enclosure ”d” Identification EEx d IIC T5 or T6 Certificate of conformity PTB No. Ex-94.C.1021 Max. ambient temperature +85 _C in temperature class T5 +75 _C in temperature class T6 Communication (PC/laptop or HARTR-Communicator with SITRANS P transmitter) Load with connection of HARTR-Modem 230 to 500 Ω...
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Page 13: Ordering Data
7MF4232 Operating Instructions Ordering data Name Order number SITRANS P transmitter for absolute pressure (from pressure transmitter series), 7MF4232- - j j j j j - - 1 j j j two-wire system, Smart version Measuring cell filling Measuring cell cleaning silicone oil normal inert filling liquid... - Page 14 Operating Instructions 7MF4232 Other versions Suffix ”- -Z” and code to order number. Description Code Transmitter with mounting bracket made of steel stainless steel Han 7D connector (metal, gray) Han 8U connector (instead of Han 7D) Labeling of plates (instead of German) English French Spanish...
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Page 15: Dimensions
7MF4232 Operating Instructions Dimensions Process connection - -14 NPT or connection shank G A or oval flange with connection pin Terminal side, analog indicator (optional) electronics side, cover with viewing window Rotation reference mark (see chapter 2.1.2, page 15) Permissible range of rotation, hatched in the diagram (see chapter 2.1.2) Locking screw (see chapter 2.1.2) Safety angle for housing cover (only for flame- -proof enclosure, not illustrated in the drawing) -
Page 16: Installation
Operating Instructions 7MF4232 Installation Installation The transmitter can be installed above or below the pressure tapping point. When measuring gases we recommend installing the transmitter above the pressure tapping point and laying the pressure pipe with a constant downward gradient to the pressure tapping point so that condensation which forms can drain into the main pipe and the measured value is not falsified. -
Page 17: Turning The Measuring Cell In Relation To The Housing
7MF4232 Operating Instructions 2.1.2 Turning the measuring cell in relation to the housing If necessary, the electronics housing can be turned in relation to the measuring cell in the SITRANS P transmitter to move the electronics side (with digital indicator) into view. Only a limited rotation is permitted! The range of rotation (7) is marked on the base of the electronics housing;... -
Page 18: Electrical Connection
Operating Instructions 7MF4232 Electrical connection Warning The pertinent regulations must be observed for electrical installation; particularly in hazard- ous areas. the directive governing electrical systems in hazardous areas (Elex V) the regulation for installing electrical systems in hazardous areas (VDE 0165) and the certificate of conformity Check whether the auxiliary power supply matches that specified on the rating plate. - Page 19 For error-free communication at least one load of 230 Ω must be available in the signal circuit (see Figure 2.4). When using power supply isolators for Smart transmitters, e.g. Siemens 7NG4021, a load is already installed in the isolator (see Figure 2.5, page 18). The isolator with intrinsically safe input circuit (transmitter circuit) is at the same time a safe isolation between the intrinsically safe and the not intrinsically safe circuit.
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Page 20: Installing The Analog Indicator
Operating Instructions 7MF4232 Hazardous Non-hazardous lo- location cation + HK - - Total of 230 to 500 Ω SITRANS P transmitter 7NG4021 HART -Modem HART Communicator Figure 2.5 Electrical connection with power supply isolator for Smart transmitter Installing the analog indicator Unscrew the housing cover of the terminal side (marked ”FIELD TERMINALS”... -
Page 21: Commissioning
7MF4232 Operating Instructions Commissioning The process data must match the values specified on the rating plate. The transmitter is in operation when the power supply is switched on. Warning D If the venting valve and/or the screw plug are missing or are not tight enough, D if the valves are operated incorrectly or improperly, this can lead to serious injury or consid- erable material damage. - Page 22 Operating Instructions 7MF4232 D Measuring liquids The isolating valves must be operated in the following order: Initial position: all valves closed Open isolating valve (2B), Apply pressure corresponding to the start of the scale through the test connection of the isolating valve (2) to the transmitter, Check the start of scale and correct if necessary, Close the isolating valve (2B),...
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Page 23: Operation
7MF4232 Operating Instructions Operation Operation with PC/Laptop For parameterization of the SITRANS P transmitter with PC/laptop, the SIMATIC PDM software is re- quired (see also Technical data, page 10). See the software description for operating instructions. Operating from a HART -Communicator The handheld terminal is connected to the transmitter (see Figure 2.4, pg. - Page 24 Operating Instructions 7MF4232 HART communicator SITRANS P: <TAG> SITRANS P: <TAG> 1 Offline Online 2 Online 1 Press 2.19 mbar Press 2.19 mbar 3 Frequency device 2 Device setup 4 Utility HELP SAVE HELP EXIT SITRANS P: Boiler_1 SITRANS P: Boiler_1 Device setup Process variables 1 Process variables...
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Page 25: Operation On The Transmitter
7MF4232 Operating Instructions Operation on the transmitter 4.3.1 General The SITRANS P pressure transmitter can also be set locally. The start of the scale and full scale can be ”set” or adjusted with three keys; other parameters can be set using the digital indicator. The keys are accessible after unscrewing both screws and lifting up the protective cover. - Page 26 Operating Instructions 7MF4232 In the version with cover with viewing window (option) or with open cover and released lock, all functions of the Table 4.1, page 26 are selected with the mode key M . If the M -key is pressed, (Mode) 2 appears at the bottom left of the digital indicator.
- Page 27 7MF4232 Operating Instructions Calibrate start of scale and full scale If the output current is not to be set but freely adjusted: Connect a DC meter to the output circuit or the test sockets (see Figure 2.4, page 17) Warning D For intrinsic safe current circuits only certified current meters are permitted.
- Page 28 Operating Instructions 7MF4232 Key function Mode Mode Function Function Indicator explanations Indicator, explanations Chapter Chapter Output current in mA or % or input Measured value 4.3.3.8 pressure in engineering units Error display if transmitter is disturbed 4.3.3.6 Start of range increase decrease set to 4 mA...
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Page 29: Setting Start Of Scale And Full Scale With A Pressure Source
7MF4232 Operating Instructions 4.3.3 Operation with visible digital display and deactivated function lock Note D The measuring span does not change when the start of scale is set! (span = full scale minus start of scale) D The keys and/or functions can be locked! See Table 4.1 (page 26), Mode 10, chapter 4.3.3.7 (page 31) and 4.4 (page 32). -
Page 30: Setting Start Of Scale And Full Scale Without Pressure Transmitter
Operating Instructions 7MF4232 If the character appears at the left hand side of the display the measuring limits are exceeded; the previous setting is not changed. appears in the display the set span is greater than the double max. span. If the -keys are pressed simultaneously for about 2 s, the full scale is set to 0.0000. -
Page 31: Correction Of Zero Point
7MF4232 Operating Instructions When trying to decrease the value using the key, the error note is displayed additionally to the (not changeable) value (Explanation: If the start of scale is changed the measuring span remains unchanged. The full scale 300 mbar violates the measuring range limits.) Press -and keys together for about 2 s, full scale is set to 250.00 mbar. -
Page 32: Setting Electrical Damping
Operating Instructions 7MF4232 4.3.3.4 Setting electrical damping Note The time response of the SITRANS P transmitter is determined by the dead time, the time constant T (see Chapter 1.3, Page 7), and the electrical damping value. The SITRANS P transmitter is supplied with a damping value of 0.1 s. Values of 0 to 100.0 s in increments of 0.1 s are permitted. -
Page 33: Disable Pushbuttons And/Or Functions
7MF4232 Operating Instructions 4.3.3.7 Disable pushbuttons and/or functions The pushbuttons located under the protective cover can be protected together with their functions against accidental or unauthorised use. Select mode 10 using the M key. Use the key to select one out of four functions ! no pushbuttons or functions disabled (operation see chapter 4.3.3, page 27) ! all pushbuttons and functions disabled ! all functions disabled except start of scale (to set or adjust start of scale see chapter 4.3.2,... -
Page 34: Write Protection
Operating Instructions 7MF4232 Write protection The transmitter parameters can be protected against accidental or unauthorised overwriting. The write protection prevents changing the parameters using the keys or PC/laptop or HARTR Communicator. But they can be read out by PC/Laptop or HARTR Communicator. Clean the transmitter before opening it to prevent the ingress of dirt Switch off the voltage for transmitters conforming to protection type ”Flame--proof enclosure”... -
Page 35: Maintenance
7MF4232 Operating Instructions Maintenance The transmitter requires no maintenance. Check the transmitter’s start of scale value occasionally. If an error occurs: the output current is set to 22.8 mA or 3.6 mA, depending on selection (see chapter 4.3.3.6, page 30), using SIMATIC PDM an appropriate message is displayed in the ”Measured values”... -
Page 36: Conformance Certificates
Operating Instructions 7MF4232 Conformance Certificates C79000-B5676-C92-01... - Page 38 Siemens AG Bereich Automatisierungs- und Antriebstechnik Geschäftsgebiet A&D PA D-76181 Karlsruhe E Siemens AG 1999 All rights reserved C79000-B5676-C92 Siemens Aktiengesellschaft Printed in France AG 0899 MG 38 GB...