Siemens SITRANS P 7MF4232 Operating Instructions Manual Download Page 17 | Manualshive

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7MF4232

Operating Instructions

15

C79000-B5676-C92-01

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; there is a reference mark (6)

on the neck of the measuring cell which must stay within the marked area (7) when rotating.

D

Loosen the locking screw (8)

D

Turn the housing within the marked area

D

Tighten the locking screw

Figure 2.2 Turning the electronics housing in relation to the measuring cell

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Summary of Contents for SITRANS P 7MF4232

Page 1: ...SITRANS P Absolute pressure transmitter DS series Smart 7MF4232 Operating Instructions C79000 B5676 C92 01 ...

Page 2: ...r respective owners and must be treated accordingly Thereproduction transmissionoruseofthisdocumentoritscontentsisnotpermittedwithoutexpresswrittenauthority Offenderswillbeliable for damages All rights created by the granting of patents or registration of a design are reserved Technical data subject to change without notice ...

Page 3: ...SITRANS P Absolute pressure transmitter DS series Smart from the pressure transmitter series 7MF4232 Operating Instructions ...

Page 4: ...7MF4232 Operating Instructions 2 C79000 B5676 C92 01 ...

Page 5: ...r 21 4 3 Operation on the transmitter 23 4 3 1 General 23 4 3 2 Setting the start of scale and full scale with the cover closed without viewing window and activated key disable 24 4 3 3 Operation with visible digital display and deactivated key lock 27 4 3 3 1 Setting start of scale and full scale with a pressure source 27 4 3 3 2 Setting start of scale and full scale without pressure transmitter ...

Page 6: ...lled and operated after qualified personnel have ensured that suitable power supplies are available These personnel must ensure that the equipment is not subjected to any hazardous voltages during normal operation or when a defect occurs in the system This equipment may be used under high pressure and with aggressive media Improper use of this equipment may therefore result in severe personal inju...

Page 7: ...tal converter 12 into a digital signal The measuring signal is evaluated by a microcontroller 13 corrected with respect to linearity and temperature behavior and transformed by a digital analog converter 14 into the output current 4 to 20 mA The measuring cell specific data and the data for parameterization of the transmitter are stored in a non volatile EEPROM The cable termination point and the ...

Page 8: ... 12 Analog Digital converter 13 Microcontroller 14 Digital Analog converter 15 Digital indicator 16 Analog indicator option μC Figure 1 1 SITRANS P absolute pressure transmitter function diagram SITRANS P Transmitter Auxiliary power PC Laptop RS 232 C HARTR Communicator or HARTR Modem 230 Ω to 500 Ω 230 Ω to 1100 Ω for HartR communicator Figure 1 2 Communication between PC Laptop or HARTR Communic...

Page 9: ...ry to readjust the start of the measuring range In pressure measurements with repeated exceeding of the measuring limits e g batch processes with transitions between vacuum and ventilation a measuring cell with a maximum range of 1300 mbar should be selected to avoid overrange errors Lower measuring limit Silicone oil filling 0 mbar abs Inert filling liquid 20 _C to 60 _C 30 mbar abs 60 _C to 100 ...

Page 10: ...ilicone oil filling and isolating diaphragm made of stainless steel All data refer to the output span Measuring span ratio MSmax MS r MSmax maximum span MS set span Measurement error when calibrating fixed point including hysteresis and reproducibi lity 0 1 at r 10 0 2 at r 10 Time constant T63 at 20 _C without electrical damping about 0 2 ms Long term drift 0 2 every 12 months at max span Influen...

Page 11: ...2 4819 Measuring cell filling silicone oil or inert filling liquid Electronics housing low copper die cast aluminum GD AISi 12 polyester based lacquer stainless steel rating plate Mounting bracket optional steel galvanized and yellow passivated or stainless steel Digital indicator Housing cover with or without viewing window accor ding to order see also chapter 4 3 1 page 23 Analog indicator optio...

Page 12: ...ure class T6 Communication PC laptop or HARTR Communicator with SITRANS P transmitter Load with connection of HARTR Modem 230 to 500 Ω HARTR Communicator 230 to 1100 Ω Cable Shielded two core 3 0 km Shielded multicore 1 5 km Protocol HARTR Revision 5 1 PC laptop requirements IBM compatible RAM 32 Mbyte Hard disk at least 70 Mbyte RS 232 C interface VGA graphics Software for PC laptop Windows 95 or...

Page 13: ... 3 Material of the components that do not come into contact with the medium electronics housing die cast aluminum precision cast stainless steel 0 3 Explosion protection without explosion protection A with explosion protection CENELEC ignition protection type Intrinsic safety EEx ia Pressure proof housing EEx d2 Intrinsic safety EEx ia and flame proof enclosure EEx d 2 in planning B D P Use in zon...

Page 14: ...the output signal to 22 mA D05 Acidic gas version according to NACE only in connection with diaphragm of Hastelloy D07 IP 68 not in connection with plug D12 Use in zone 0 standard instrument EEx ia E02 four wire connection on request Additional data Suffix Z and code to the order number and specify in writing Description Code Range to be set state in plain text Y01 to mbar bar kPa MPa Y01 Measurin...

Page 15: ...ee chapter 2 1 2 8 Locking screw see chapter 2 1 2 9 Safety angle for housing cover only for flame proof enclosure not illustrated in the drawing 10 Blanking plug only for Pg 13 5 and Han 7D 11 Protective key cover 12 Electrical connection compression gland Pg 13 5 2 3 or female thread M20 x 1 53 or female thread 1 2 14 NPT or Han 7D connector 2 3 1 take approx 20 mm thread length into account add...

Page 16: ...o that entrapped gas can escape into the main pipe The installation point should have good access if possible in the vicinity of the measuring point and should not be exposed to strong vibration The permissible ambient temperature limits should not be exceeded The transmitter should be protected against direct heat The operating data must be compared with the values specified on the rating plate b...

Page 17: ...ronics 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 there is a reference mark 6 on the neck of the measuring cell which must stay within the marked area 7 when rotating D Loosen the locking screw 8 D Turn the housing within the marked area D Tighten the locking screw Figure 2 2 Turning the electr...

Page 18: ...e replaced by suitable compression glands or blank ing plugs which must be certified for transmitters with flame proof enclosure protection type D For laying the connecting cable max 1 5 mm2 cross section signal cable it generally applies that the signal cable should laid separately from cables with voltages 60 V use cables with twisted pairs avoid the vicinity of large electrical installations or...

Page 19: ...ator or HARTR Modem 230 Ω to 500 Ω 230 Ω to 1100 Ω for HartR communicator Figure 2 4 Electrical connection schematic diagram 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 in...

Page 20: ... on the housing Plug analog indicator into the test sockets Depending on the operating position of the transmitter the analog indicator can be plugged in two different positions rotation by 180_ possible Screw in casing cover with glass pane 2 4 Turning the digital indicator Unscrew housing cover of the electronics side Unscrew digital indicator Plug in the digital indicator Depending on the opera...

Page 21: ...s 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 Open the isolating valve 4 on the pressure tapping point Open isolating ...

Page 22: ... for test connection or venting screw 3 Pressure pipe 4 Isolating valve 6 Outlet valve 4 Figure 3 2 Measuring liquids D Measuring steam 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 o...

Page 23: ...gh the menu list The selected menu line is marked With the key the cursor is moved down through the menu list The selected menu line is marked With the key the cursor is moved to the right through the menu list or branched to a subroutine The name of the selected subroutine is displayed at the top of the display With the key the cursor is moved to the left through the menu list or a subroutine is ...

Page 24: ...o span set 3 Sensor trim 4 Trim analog output 5 Restore mfgr trims SAVE HOME SITRANS P Boiler_1 Basic setup 1 TAG 2 Unit mbar 3 LVR 0 00 mbar 4 URV 1 000 00 mbar 5 Damp 0 10 s 6 for fctn Linear HELP SAVE HOME SITRANS P Boiler_1 Detailed setup 1 Sensors 2 Signal condition 3 Output condition 4 Device information SAVE HOME SITRANS P Boiler_1 Review Engineering unit mbar HELP PREV NEXT EXIT SITRANS P ...

Page 25: ...ents of the SITRANS P transmitter The transmitter is always delivered with a built in digital indicator full pushbutton operation possible The version of the cover with or without viewing window is as ordered In transmitters with cover without viewing window the pushbuttons and functions are disabled LS in the digital indicator means all functions disabled except start of scale and full scale see ...

Page 26: ...ptop or HARTR Communicator The output current is independent of the applied absolute pressure The keys are locked D For all modes except 7 and 8 the following applies A set new value is only saved when the mode is changed or when the transmitter returns automatically to the Measured value function about 2 minutes after the last keypress 4 3 2 Setting the start of scale and full scale with the cove...

Page 27: ...ockets Clean the transmitter to prevent the ingress of dirt Open the housing cover of the terminal side Remove the analogue indicator if fitted Connect DC meter D Start of scale Apply an absolute pressure corresponding to the start of scale to the transmitter Set the output current for start of scale using the and keys D Full scale Apply an absolute pressure corresponding to the full scale to the ...

Page 28: ...M 4 3 3 5 Output current in error situation 9 toggles between the two values Selected output current possible 22 8 or 3 6 mA 4 3 3 6 Disable pusbuttons and or functions 10 change between the four functions none all locked all locked except start of range all locked except Start of scale and full scale 4 3 3 7 11 Omitted only differential pressure 12 Omitted only differential pressure Measured valu...

Page 29: ...o pressure source in mode 5 the start of source and in mode 6 the full scale can be set in the selected uengineering unit see chapter 4 3 3 2 page 28 D Setting start of scale Apply absolute pressure corresponding to the start of scale to the transmitter With the M key set mode 2 With the key or the key set the output current of the start of the scale or set the output current to 4 mA Press the key...

Page 30: ...to set the full scale in the selected engineering unit When pressing both and keys simultaneously for about 2 s the full scale is set to the upper measuring limit in the selected engineering unit Example 1 A transmitter with a maximum measuring span of 5 bar is to be calibrated to a measuring range of 0 to 3 52 bar to correspond to 4 to 20 mA Select engineering unit bar in mode 14 For the start of...

Page 31: ...ng span Select mode 7 using the M key Press the and keys simultaneously for about 2 s The value 0 or 0 0 etc to 0 0000 is displayed on the LCD depending on the maximum measuring span of the transmitter and the selected engineering unit Note At absolute pressure sensors the start of scale is at vacuum The zero adjustment in ventilated transmitters leads to misadjustments The factory calibration fun...

Page 32: ...ission ing irrespective of the pressure 3 6 mA 4 0 mA 12 0 mA 20 0 mA 22 8 mA Select mode 8 using the M key Press the and keys simultaneously for about 2 s This activates the loop check function An output current of 4 0 mA is displayed Use the and keys to select the required current Changing the mode disables the loop check function 4 3 3 6 Output current in error situations The pressure sensor an...

Page 33: ...e than 5 s Note D When selecting lock or the measured value display current in mA or should be chosen beforehand in mode 13 see chapter 4 3 3 8 page 31 Otherwise a change of the output value is not noticeable when the or keys are pressed D If an is displayed on the LCD then the transmitter parameters are protected against overwriting see chapter 4 4 4 3 3 8 Select display current pressure It can b...

Page 34: ... off the voltage for transmitters conforming to protection type Flame proof enclosure when using in hazardous location undo the screw holding the safety angle on the electronics side if fitted Move angle out of the way Screw off housing cover of the electronics side On the LCD optional is the displayed letter locked Secure jumper against losing push jumper horizonta on the right jumper pin LCD Jum...

Page 35: ... 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 field is displayed on LCD ...

Page 36: ...7MF4232 Operating Instructions 34 C79000 B5676 C92 01 6 Conformance Certificates ...

Page 37: ......

Page 38: ...ens AG 1999 All rights reserved Siemens AG Bereich Automatisierungs und Antriebstechnik Geschäftsgebiet A D PA D 76181 Karlsruhe Siemens Aktiengesellschaft C79000 B5676 C92 Printed in France AG 0899 MG 38 GB ...

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