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Technical Reference Manual LSGH

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2. 1 4 1 2 Contact information 1 6 2 1 Terminal names and descriptions 2 6 3 1 Calibration 3 4 3 2 Standard method calibration 3 6 3 3 Simple methodcalibration llle 3 8 3 4 Standard calibration sensor counts levels record 3 14 4 1 Primary channel screen display values 4 1 4 2 Process variable screen display values 4 3 4 3 Auxiliary channel chain screen display values 4 3 4 4 Min Max history screen display values 4 4 4 5 Other advanced functions descriptions 4 11 Dl Alarm onu he Eee Roe xw x Due 4 xod 5 1 5 2 Alarm type outputs 5 2 5 3 Diagnostic alarm conditions 5 4 5 4 Power supply board test point labels and descriptions 5 10 5 5 CPU test point labels and descriptions 5 11 5 6 Jumper settings 5 11 5 7 Power supply board LED summary 5 12 5 8 board LED 5 13 5 9 Periodic maintenance schedule 5 14 5 10 Spare part numbers
3. 5 15 Calibration parameters and descriptions A 4 A 2 Setting process values of 0 100 A 8 Diagnostic alarm conditions A 13 A 4 Analog alarm conditions A 14 A 5 Process relay set alarm A 15 A 6 X ray parameters anddescriptions A 16 Bid LSGF spareparts iul a eRe aae ES a E E B 3 B 2 Initial setting and calibration locations B 6 Heater kit part numbers B 31 Smart Prodatarecord 2 2 Linearizerrecord 2 LSGH User Manual xi xii LSGH User Manual PREFACE Explanation of symbols Table P 1 lists the symbols that the manual and instrument use TableP 1 Explanation of symbols Radiation notice In the manual information concerning radioactive materials or radiation safety information is found in the accompanying text Caution In the manual warnings concerning potential damage to the equipment or bodily harm are found in the accompanying text AC current or voltage On the instrument a terminal to which or from which an alternating sine wave
4. 27 ILL ZZA LFXGF DSGF or LSGF Output signal cable Xl Power cable per local LFXGF DSGF LSXGF OSGF or LSGF unit interconnect is typical of all units to be used in a piggyback multiple cell application Power cable per local Power Earth E mum Housing ground Cenelec type ground type Output signal cable 3 LSGF BENDTES possible Power cable additional per local LFXGF detectors Auxiliary frequency input Figure Interconnect Multiple detector 1 CONTROL ROOM SYSTEM mA INPUT DCS Optional modem Output signal terminal m Optional hand held terminal Total number of LFXGF DSGF or LSGF detectors for this application LSGH User Manual B 5 LSGH LFXG F DSGF or LSGF 1 Power L 210 Power N 1 3 0 2 Powerin 440 30 4 5 5 6 Freq 710 0 Freq 8 O 9 O 9 10 11 Aux 12 O Aux 13 14 O Figure B 4 Multiple detector interconnect terminals Initial settings and calibration requirements Refer to these sections of this manual for more details Table B 2 Initial setting and calibration locations Setting Manual heading Page Select Summation mode in Setting up summation mode B 6 Initial setup Set span for total of all Span settings A 7 detectors Calibrate according to Initial proces
5. jenuew 226 sobueuo Ajje uswepuny NOILNV 1 Figure 0 22 Select gage type 20 uomeoo 12ejes ees sobueuo Ajjeyuowepuny ed NOILO VO 190 129 956 Figure D 23 Select gage location D 21 LSGH User Manual Notes D 22 LSGH User Manual Symbols count range 4 2 96 process span 4 2 Numerics 20 mA Level A 8 4 mA Level A 8 A Acknowledging diagnostic alarms 5 3 active area between mounting brackets 2 4 Adj counts 4 2 Advanced Functions 4 1 Advanced Fxns 4 1 alarm analog alarm 5 5 A 14 setup A 12 Alarm out 2 mA alarm setup A 14 Alarm out 22 mA alarm setup A 14 analog alarm acknowledging 5 5 selecting 2mA or 22mA A 14 analog output See current loop output 3 1 output fixed at 2mA or 22mA 5 5 applications 1 6 Auto Zero feature B 20 Aux channel chain 4 3 auxiliary input A 17 multiple gauges A 18 Auxiliary input test mode 4 9 Auxiliary x ray alarm 5 7 C calibration current loop analog output 3 1 initial simple method of 3 7 initial standard method of 3 5 initial See initial calibration 3 3 process 3 3 Counts high 4 3 Counts low 4 3 I
6. If using hand held HART Communicator press F2 to send the setting to the transmitter LSGH User Manual A 17 Summation mode The HART level transmitter can have as an input a raw sensor output from another slave level gauge which cannot be used in the HART current loop The master level transmitter receiving the input uses the incoming signal to modify its output For example you may use this feature to make the master HART level transmitter read the sum of two level gauges Note Referto Setting up summation mode page B 6 for complete application information on using summation mode for multiple level detectors 18 LSGH User Manual APPENDIX SPECIAL APPLICATIONS This chapter provides application specific information for special installations If your application is not in this chapter you may find application specific information on the certified drawings provided by VEGA or the engineering contractor If you have other application questions contact VEGA Field Service in the U S or Canada at 513 272 0131 or your local rep outside of the U S or Canada Note To use the compensation features of the HART gauge you must be using VEGA View 2 0 or higher Ohmview 2000 or have a HART hand held communicator programmed with the VEGA COMP device description LSGH User Manual B 1 Multiple detectors summation Some applications require a measurement length longer than the maxi
7. ueds 9 2 eq syun Uojsno 2 906 4 ul Sjun sun syun SS920Jd SS920Jd Figure D 4 Process parameters D 5 LSGH User Manual P xo 1nus JXeN Z enp enp inus ediM S inus v skep lemau yo inus 6 1009 ON 292 19 pom Lyc SS INW HH 2 5 2 s ep 09 09 AA GC WWI exea 1 abessoy eAJ8 U 12159 oju uonoun edA uiejs S 2 pue 5 Figure D 5 System parameters LSGH User Manual D 6 sseooJg uO HO np yoayo Jennus 9 uO HO n1109 onsoubeiq dt eun JOU S ponad
8. ER A 2 Level nits 57 v ah uu xe xe edd A 2 CUStOm UNIS o RT NE SERO NR REOR SERA UP A 2 Setting the process A 2 Setting custom units A 3 Calibration parameters A 4 Setting the calibration 4 eeu on ter p les ig RA qe gid A 5 RC exponential or rectangular window A 5 RGO exponential u s EDI UE Bae a OE ub od A 5 Rectangular window A 6 DAMPING eon ut eet Weta Qe PA dL desde copre ca tta bend A 6 Fast response cutoff A 6 Selecting a filter type damping and fast cutoff A 7 Spam settings s aces iore x uem E Fy tig en et Aaya a A eee A 7 5 s di eben tel doi jr Vd idk aye arb e A 7 vi LSGH User Manual Setting process Span ss o ts a tee tk e Bae 8 8 System parameters A 9 Hime Soo our AN A 9 Date
9. JOULIG Z pjouseJu HHH JUIOdjas 2 UOMO uO HO uO HO enp edim 2 05 OZIPIEPUEIS 105095 1012109 HSV14 09 20505 jdnuoo yes 5 vulc INO wey do onsouBeiq Dojeuy 2 KeJ X SS8001q onsouBeiq c ux uonounj 95 suuelv Figure D 6 Alarms D 7 LSGH User Manual HH d JOA 9JEMpJEH py S v Joder 9ej oo xny 2 Sjunoo 1 joejoo 2 HEHEH UID WHON HHH JOA ON JodeA INHON HO JodeA INHON ON Z ed uonesueduio S HET OL Je indu
10. vcrc TUE D 7 Ds Auxiliaty Anp t rat iek i RO ee x Xue RES D 8 0 8 View seling ave e UL S XE ee D 9 Galibrati ris RIA DES RUM e M Re cd D C AD Jed PO rb a D 10 D TO Initiabealk zd ur o a rh Nee Neri Ant ah pees eif RR or D 11 D 11 Process stdz irure dS uui Hd D 12 D 12 Data collect 4 ace db A te atem du db mu ura D 12 0 13 Gurrentloop Gal av pam D 12 dar tur Eua uo de Pu e INEST UR D Er D 13 0 15 Gauge Status Rom dex E vd VEL ess D 14 D 16 Advanced Fxns D 15 Didi Precess chalb 7 a ar Be Senta ed cw Rem n D 16 D 18 Min maxhistory 0 17 Del 9 iNew WardWware 525522254 ow 3e RO D 18 D 20 Te6Sst mode c i eor ee mex ue Pete arcto t deed om des eb y 28S ADAE D 19 21 Other advanced ux som wee XR CELO Te DAI ORAT XR D 20 0 22 0 21 0 23 21 X LSGH User Manual List of Tables 1 Explanation ofsymbols 1 1 1 1
11. Detector WINING uuu e pomis m mr eee gr une de gs ossa Ae ER at ah Mae ae wes Responder Gauge Responder Function Communication Master Configuration Responder Main menu Initial Setup e sus moto epa POR sek goes Auto Zerofeat re u sos Lomo E DS Setting up the Auto Zero feature NORM naturally occurring radioactive material compensation Special drawings for NORM Compensation Installation requirements Detector WINING oa be Ble Se oe X E e Initial settings and calibration requirements for NORM compensation Setting up NORM compensation Calibrating with NORM Vapor pressure compensation Installation requirements Detectot wiritlg s iuo oe xb tea REOR ace qoem ale Algorithm for vapor comp Variable definitions Reference counts Vapor density Counts a m P nt eS
12. Notes C4 LSGH User Manual APPENDIX HART MENUS AND SCREENS The following charts illustrate the HART hand held communicator menus and screens If using VEGA View refer to the VEGA View User Manual part number 237855 for description of the VEGA View HART menus and screens If using Ohmview 2000 refer to the electronic user manual on the software CD part number 243008 for a description of the software menus and tabs LSGH User Manual D 1 uone nuis 6 uoneoo oDeJolS Od 10 uomeuuoju uleis S 2 Aunn euou 5 euou AouenbeJJ 991A0q ON eujuo pe1oeuuoo ou nuayy HART screen Transmitter not connected Figure D 1 LSGH User Manual D 2 sux4 peoueApy p 5 c Suomneaqi et dnies jenu VUA THE THE THE jno 2 L 05 Figure 0 2 HART screen Online D 3 LSGH User Manual
13. RAM corrupt Standardize due CPU EEPROM corrupt Sensor EEPROM corrupt Source wipe due Alarm Type 1 Flash corrupt New hardware found Alarm Type 2 Real time clock Sensor fail Shutter check due Sensor temp Sensor high voltage fail Process out of measurement range Setting the diagnostic alarm conditions Procedure A 12 Setting the relay as a diagnostic alarm 1 From the Main menu select Initial setup Alarms Mode configuration Diagnstic alarm 2 If using a hand held HART communicator from the Diagnstic alarm menu select Diagnstic Gp1 Diagnostic Group 1 If using VEGA View or Ohmview 2000 proceed to the next step 3 From the Diagnstic Gp1 screen scroll through the list of diagnostic conditions that can be used to activate the relay Toggle the conditions On or Off with the F2 key Press F2 to enter Press the LEFT ARROW key to return to the Diagnstic alarm screen 4 a hand held HART Communicator from the Diagnstic alarm menu select Diagnstic Gp2 Diagnostic Group 2 A 12 LSGH User Manual 5 From the select Diagnstic Gp2 screen scroll through the list of diagnostic conditions and toggle the conditions On or Off 6 If using a hand held HART communicator press F2 to send the setting to the transmitter Setting the relay as a diagnostic alarm Procedure A 13 Setting the diagnostic alarm conditions 1 From the Main menu select Initial setup Alarms Set relay func
14. 2 6 2 5 LSGH wiring diagram 2 8 3 1 Measuring the current loop output 3 2 3 2 Standard method calibration low chart 3 5 3 3 Simple method calibration flow chart 3 7 3 4 Linearizer data collected at various process levels 3 9 3 5 Raw counts vs actual level with 3 10 3 6 Count range vs span shown linearizer table 3 11 3 7 Indicated level vs actuallevel 3 11 5 1 X ray interference alarm output 5 7 5 2 Circuit board identifications 5 9 5 3 Power supply and CPU board simplified component layout 5 10 5 4 LED IndiGalors 3 2 eg doe m s WU dew ang 5 11 RC exponential filtering A 5 A 2 Rectangular window filtering A 6 X ray interference alarm output A 16 B 1 Multiple detectors summation 2 B 2 Placement of multiple detectors B 4 Interconnect Multiple detector B 5 B 4 Multiple detector interconnect terminals B 6 B 5 Typical installation vapor compensation amp auto zero B 8 6 Interconnect GEN2000 RS 48
15. SOA L 01 5900 4 195 12D 195 1 1 82 109195 Figure D 10 Initial cal D 11 LSGH User Manual 5 Bay 2 ON L 4 jenje ndul ITED elep exer oj sseooJd 18S Zpis 55 Figure D 11 Process 5192 HHE SJUNOD sseooud HHHH HH SIUNOD Figure D 12 Data collect ON Z L e2u819JaJ jenbe 00 02 1ndino J9 u4 ONZ SOA jenbe 1ndino 191u3 BOUSIIJ9J JOBUUOD 9 2 Figure 0 13 Current loop LSGH User Manual D 12 _ __ SOA Kyueeui
16. eed 3 14 Step Setlowlevel 3 15 Setting the cal low level 3 15 Step2 high 3 16 Setting the cal high level 3 16 Step 3 Collecting linearizer table data 3 17 Collecting linearizer table data 3 17 Step 4 Calculating the 3 18 Calculating a new 3 18 Step 5 Calculate calibration 3 18 Calculating the calibration result 3 18 When new initial calibration be necessary 3 19 Periodic process standardization 3 19 Automatic standardization 3 19 Performing a standardization 3 20 iv LSGH User Manual Standardizingthegauge 3 20 Chapter 4 Advanced functions 4 1 Pirocess chaln m aiie 57 teeta a 4 1 Primary chanrielz sepe homm Bade A Ee 4 1 Process variables xs GM e RU 4 3 mx rete emen ee ed UA TNR eR Un
17. 14 LSGH User Manual Introduction LSGH specifications Table 1 1 LSGH specifications System Accuracy 1 of span typical Accuracy depends on specific application parameters Electronics Housing Typical Sources Cesium 137 0 66MeV gamma radiation emitter 30 2 year half life Cobalt 60 1 2 amp 1 3MeV gamma radiation emitter 5 3 year half life Power AC 100 230 10 90 250VAC at 50 60 Hz Requirements at 15VA maximum power consumption 25VA max with heater CE compliance requires 100 230 10 20 60VDC less than 100mV 1 1 000 Hz ripple at 15VA CE compliance requires 24VDC 10 Wiring 1 63 0 643mm 14 22 Signal Cable Maximum length 1 000 m 3 280ft HART signal 1 02 0 643mm 18 22 AWG two conductor shielded GEN2000 4 wire hookup with 1 02 0 643mm 18 22 AWG four conductor DC shielded Certification to CSA and UL standards Designed to meet National Electric Code U S amp Canada Class Groups A B C amp D Div 1 amp 2 Class Groups E F amp G Div 1 amp 2 CENELEC certification EExd T5 pending Enclosure rating NEMA 4X IP 66 Ambient temperature 20 60 C 4 F 140 F option for lower temperatures available Humidity 0 95 non condensing Vibration Tested to IEC 68 2 6 IEC 68 2 27 and IEC 68 2 36 Material Cast aluminum ASTM A 357 Paint Polyes
18. Setting process span Procedure A 5 Setting the process span 1 From the Main menu select Initial setup Process parameters Spans Process span 2 From the Process span screen set both the minimum and maximum values for the measurement span 3 Press F2 to send the setting to the transmitter Current loop span The current loop output can be set to be either forward acting or reverse acting by choosing the appropriate values of 4 mA Level and 20 mA Level A forward acting output is proportional to the level and a reverse acting output is inversely proportional to the level See Table A 2 for an example of settings for process values of 096 and 100 The current loop span is the lowest and highest level to be indicated by the 4 20 mA current loop analog output These settings do not have to be the same as the process LSGH User Manual A 7 span settings Min level and Max level but must within the boundaries for the process span The screens prompt entry of a 4 mA level and 20 mA level Table A 2 Setting process values of 0 and 100 Forward acting proportional Reverse acting inversely proportional 4 mA Level 20 mA Level 4 mA Level 20 mA Level 096 10096 10096 0 Procedure 6 Setting the current loop span 1 From the Main menu select Initial setup Process parameters Spans Current loop span 4 mA Level In the 4 mA Level screen enter the minimum
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20. VGA zu sou oe bee coe faa ate d X133 Initial settings and calibration Setting up vapor compensation Calibrating with vapor compensation Calibrating with vapor compensation Internal heater kit for applications 50 Changes to specifications Appendix C Preserving information from Smart Pro to the LSGH Preserving information from Smart Pro Appendix D HART menus and screens Index viii LSGH User Manual List of Figures 1 1 IEGex Label gun ox Rus os 4 ue 1 4 1 2 System overview 1 7 1 3 Typicalsourceholder 1 8 1 4 LSGH exploded view 1 8 1 5 Scintillator material 1 9 1 6 HART hand held 1 10 1 7 Example of VEGA View software 1 11 1 8 Example of Ohmview 2000 software 1 12 21 Benchtestsetup 2 1 2 2 Mounting the detector 2 4 2 3 LSGH internal and external ground screw 2 5 2 4 ue ue Oa poe EE X weh ue RR dein
21. HART Communicator 1 9 HART load resistance 1 9 History information 5 8 hot spot key 4 1 HV setting 4 3 initial calibration 3 3 new required 3 19 theory of 3 8 input filter A 18 J jumpers 5 11 L LED indicators 5 11 Level instead of density is indicated See Select gauge type 4 12 linear table 3 12 linearizer choosing 3 12 linear table 3 12 non linear table 3 12 low temperature application B 31 Max Level 3 8 entry in initial setup A 7 Max level 4 3 Message user defined in System information A 11 milliamp output test mode 4 7 Min Level 3 8 entry in initial setup A 7 Min level 4 3 Min Max history 4 4 N New hardware advanced function 4 5 New hardware found alarm acknowledge 5 5 alarm setup A 13 diagnostics check 5 5 in diagnostic history 5 8 New hardware found message responses to 4 5 Next wipe shutter check due A 11 No device found message 5 12 non linear table 3 12 P percent count range 4 2 percent process span 4 2 Primary channel 4 1 process alarm 5 6 override switch 5 6 setting relay as A 15 Process chain 4 1 Process out of measurement range alarm setup A 13 Process out of range alarm acknowledge 5 5 diagnostics check 5 5 in diagnostic history 5 8 Process standardize type A 4 PV process value 4 2 R RAM corrupt alarm acknowledge 5 4 alarm setup A 13 in diagnostic history 5 8 RAM status diagnostics check 5 4 Index 2 LSGH Use
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23. select Fast cutoff From the Fast cutoff screen enter the cutoff value desired and press F2 to enter Refer to the help screens F1 or page A 6 in this manual for details Note To turn off Fast cutoff enter 0 as the value 7 If using a hand held HART Communicator press F2 to send the updated filtering parameters to the transmitter A 6 LSGH User Manual Span settings The spans for the process current loop and any optional auxiliary input are set in the Spans screen from the Initial setup Process parameters menus Process span Process span is the anticipated lowest and highest level Min and Max level measurement with the gauge The level transmitter calibrates within these settings These define the endpoints for the calibration and linearizer curve This does not define the span for the output current loop Refer to the Setting the current loop span procedure in this section Note The Min and Max Level values for the process span are essential to proper calibration of the system You must enter the Min and Max level for process span before you perform an initial calibration You must perform a new initial calibration procedure if the values for the process span Min or Max levels change Modify the span setting if the level transmitter moves from its intended location or is measuring on a different span It is a good practice to verify that the setting is correct before performing an initial calibration
24. 10 90 250VAC at 50 60 Hz at 15 watts without heater or 25 watts with optional heater maximum power consumption AC power must not be shared with transient producing loads Use an individual AC lighting circuit Supply a separate earth ground The DC power source voltage input is 20 60VDC less than 100mV 1 1 000 Hz ripple at 15VA maximum power consumption DC power cable can be part of a single cable 4 wire hookup or can be separate from output signal cable See Output current loop section Use shielded two conductor wire 18 or 20AWG for power wiring Use supply wire suitable for 40 C above surrounding ambient temperature All field wiring must have insulation suitable for 250 volts or higher Note signal may not operate with some isolating barriers or other non resistive loads Switch for CE compliance For CE compliance install a power line switch no more than one meter from the operator control station Output current loop Output signal is 4 mA 20 mA into 250 800ohms 13 is positive and Pin 14 is negative HART communication protocol BEL202 FSK standard is available on these connections The output is isolated to standard ISA 50 1 Type 4 Class U When using signal current loop or 4 20 mA output cables that VEGA did not supply the cables should meet the following specifications Maximum cable length is 1 000m 3 280ft All wires should be 18 or 20AWG When using DC pow
25. 2000 5 1 12 Chapter 2 Installation 2 1 Testing the bench 2 1 Location considerations 2 2 Stable temperature 2 2 Protect insulation 2 2 Avoid internal obstructions 2 3 Avoid external 2 3 Avoid source cross talk 2 0 2 3 Mounting the measuring assembly 2 4 Wiring the equipment 2 5 POWER 2 7 Switch for compliance 2 7 Output current 2 7 Relay e cae eed doe a aa We a eee em m os Bub 0 2 7 LSGH User Manual HS 48535 E ee xcd egets So eq BS a ated 2 8 GommuhiCcatiorcs s Oe ud eg upon PEOR RD d x verbe ded 2 8 Process alarm override switch 2 8 sa feta RI uc eee A pA AE Mee RE GRE a Ne E 2 9 Commissioning the 2 9 Field service commissioning call checklist 2 10 Chapter 3 Calibration 3 1 Current loop analog output 3 1 Calibrating the current
26. Manual From the Auxiliary input menu select Filter Set the filter time constant For best response this value should be five seconds If this value is too large gt 10sec the system response slows with long settling times on the final output From the Compensation menu select Vapor From the Vapor menu select Gain Set the Gain to 1 0 You adjust it again during the calibration procedure 9 If using a hand held HART communicator press F2 to send the settings to the transmitter Calibrating with vapor compensation Before calibrating make sure the vapor compensation option is set up see Setting up vapor compensation on page 28 Note To calibrate the vapor pressure compensation system you must be able to adjust both the product level and the vapor pressure Calibrating with vapor compensation Procedure B 9 Calibrating with vapor compensation 1 Setthe vapor pressure to a typical pressure this is the reference pressure At this point the product level is not important as long as the density gauge is not blocked by the product From the Main menu select Initial setup Auxiliary input Vapor From the Vapor menu select Aux data collect This determines the reference counts for the vapor compensation algorithm 4 Atthe prompt select Yes to take data When data collection is complete select Yes to save the vapor pressure reference counts 5 If using a hand held HART Communicator
27. Source function menu select Record wipe or select Record shut chk 3 Atthe prompt select Yes to start recording 5 14 LSGH User Manual Diagnostics and repair Check when the next source wipe or shutter check is due Procedure 5 3 Check due date of source wipe or shutter check 1 From the Main menu select Initial setup System parameters Source function Next wipe shut due 2 From the Next wipe shut due menu select either Next wipe due or Next shut chk due to view the due date 3 Press F2 to exit Spare parts Contact VEGA Field Service at 1 513 272 0131 for parts service and repairs Outside the U S contact your local VEGA representative for parts service and repairs LSGH User Manual Diagnostics and repair Field repair procedures Very few parts are field repairable but you can replace entire assemblies or boards The following parts are replaceable CPU circuit board Power supply circuit board Note Prevent damage to the electrical components of the gauge using the appropriate electrostatic discharge procedures Replacing the CPU or Power supply board You may have to replace a circuit board if there is damage to one of its components Before replacing a circuit board check the troubleshooting flowcharts or call VEGA Field Service to be sure a replacement is necessary The sensor EEPROM contains a backup of the CPU board EEPROM After physically replacing the CPU board yo
28. a problem has recently occurred and internally repaired An example of this would be an EEPROM corruption 5 8 LSGH User Manual Diagnostics and repair Troubleshooting There are two circuit boards in the LSGH that are field replaceable Power supply board Terminal Block RS 485 ground if applicable CPU board Internal housing a ound screw 2 SS EA Z IN 3h lii P d T f mi y NI E 2 Mounting 42 ___ Nox GEN2000 Figure 5 2 Circuit board identifications LSGH User Manual 5 9 Diagnostics and repair Refer to Figure 5 3 for help in finding test points fuses jumpers and connectors on the CPU circuit board COUNTS Figure 5 3 Power supply and CPU board simplified component layout Test points Test points are located on the power supply and CPU board Table 5 4 lists and describes the power supply board test point labels 5 4 Power supply board test point labels and descriptions Power supply board test point label Description H1 HART connection H2 HART connection TP1 Isolated ground TP2 Loop current test point 200mV mA loop current Referenced to isolated ground 5 10 LSGH User Manual Diagnostics and repair Table 5 5 lists and describes the CPU test point labels Table5 5 CPU test point labels and descriptions CPU test point label Descri
29. auxiliary input test mode after you enter the desired number of counts it may be useful to look at the Process chain screen to view the variables affected by the auxiliary input counts value To view the Process chain screen back out of the test mode screens using the LEFT ARROW The transmitter continues to operate in auxiliary input test mode until it times out after one hour or until you choose Exit auxiliary input test mode Start auxiliary input test mode Procedure 4 8 Start Auxiliary test mode 1 From the Main menu select Advanced Fxns Test mode Aux Inp test mode Aux Inp test mode At the prompt select Yes to adjust counts Input the Aux counts that you want to force At the prompt select Yes to start test mode and send new data a gt The transmitter continues functioning in auxiliary test mode until it times out after one hour or until you choose Exit Aux test mode Exit auxiliary input test mode Procedure 4 9 Exit Auxiliary test mode 1 From the Advanced Fxns menu select Test mode Aux Inp test mode Exit Aux test mode 2 Atthe prompt select Yes to exit the test mode LSGH User Manual 4 9 Advanced functions Relay test mode Use this feature to manually toggle the relay On or Off to test the contacts This is useful for verifying whether alarm annunciators are functioning Start relay test mode Procedure 4 10 Start Relay test mode 1 From the Main menu select Advanced Fxns
30. current or voltage may be applied or supplied DC current or voltage On the instrument a terminal to which or from which a direct current voltage may be applied or supplied Potentially hazardous voltages On the instrument a terminal on which potentially hazardous voltage exists LSGH User Manual xiii User s comments VEGA values your opinion Please fill out this page so that we can continually improve our technical documentation Manual LSGH User Manual v 1 1 Date Customer Order Number How we can contact you optional if you prefer to remain anonymous Name Title Company Address Did you find errors in this manual If so specify the error and page number Did you find this manual understandable usable and well organized Please make suggestions for improvement Was information you needed or would find helpful not in this manual Please specify Please send this page to VEGA Americas Inc Director of Engineering 4241 Allendorf Drive Cincinnati OH 45209 1599 xiv LSGH User Manual INTRODUCTION Nuclear materials notice This equipment contains radioactive source material that emits gamma radiation Gamma radiation is a form of high energy electromagnetic radiation In many cases only persons with a specific license from the U S NRC or other regulating body m
31. de I 9 Setting the time 9 4 acoso RR RR UC RR V 10 SOUrGe hcllor So oi td e 10 Wipe ix BORSE REIR gt XXE 10 Record wipe e le Geach Ro o3 dokn Pe 10 Shut chk Interval 10 Becord shu tcehk uuum all ete ok RNC 10 Next wipe Shutdue A 11 ss has gers le eel ds Bw needa A 11 Setting A 11 Systemnformation i22 mal ced E Y M RO S noe EUR RON Wd A 11 eee IRR t TU COR RU enu Rec les A 11 Descriptors ie e dene acere d aa eed ies GP gad Re eV RR A 12 Setting Up alarmss s d etu A 12 Diagnostic alarmsetup 13 Setting the diagnostic alarm conditions A 13 Setting the relay as a diagnostic alarm A 14 Analog alarmsetup 14 Setting the analog alarm output 14 Process alarm se
32. enters this parameter based on information received at the time of the order You can check the isotope type against the source holder label Procedure A 8 Setting the source type 1 From the Main menu select Initial setup System parameters Source type 2 In the Source type screen select one of the following source types Cs 137 Co 60 Am 241 Cf 252 No source Press F2 to enter If using a hand held HART communicator press F2 to send the updated parameters to the transmitter LSGH User Manual A 9 Source function Wipe Interval Use the Wipe interval feature to view or enter the interval in days between successive source wipe diagnostic alarms Check with current applicable regulations Record wipe Use the Record wipe feature to record the date and time when you perform a source wipe This resets the diagnostic alarm source wipe due For more information see the Diagnostics and repair chapter Shut chk Interval Use the Shutter check interval feature to enter the number of days between successive shutter check diagnostic alarms Check with current applicable regulations for recommendations on shutter check intervals Record shut chk Use the Record shutter check feature to record the date and time when you perform a shutter check This resets the diagnostic alarm shutter check due For more information see the Diagnostics and repair chapter Next wipe Shut due Use the Ne
33. external ground screw is next to the conduit entry Note Not all connections are required for operation See Table 2 1 Terminal names and descriptions j Power supply board Terminal Block gt RS 485 ground if applicable CPU board Internal housing ground screw Mounting gt c Bracket GEN2000 Figure 2 3 LSGH internal and external ground screw LSGH User Manual 2 5 Installation LSGH v 0 i30 NA Figure 24 Interconnect Power in L Power in N Relay Table2 1 Terminal names and descriptions Terminal Name Description 1 L1 AC or DC power input 2 L2 AC or DC power input 3 RY NO Relay normally open 4 RYC Relay common 5 RY NC Relay normally closed 6 Freqt Not used in HART applications 7 Freq Not used in HART applications 8 6 Auxiliary input power 9 COM Auxiliary input power common 10 6 Auxiliary input power 11 Aux Auxiliary input frequency signal 12 Aux Auxiliary input frequency signal 13 mA Positive current loop output 14 Negative current loop output Note The power input terminals are not polarity sensitive 2 6 LSGH User Manual Installation Power Caution DO NOT APPLY POWER until a thorough check of all the wiring is complete The AC power source voltage input is 100 230
34. functions use the correct engineering units Calibration parameters Table Calibration parameters and descriptions Value Name Description Data coll interval The time in seconds over which the system collects a process measurement Use this interval time to collect data for Initial calibration Linearizer curve Standardization Warn span cal The difference between the two initial calibration points cal low level and cal high level as a percent of level span that causes a warning to appear For a good calibration it is important for the two initial calibration points to be as far apart as possible The default value is 1096 The user typically does not need to change this value for most applications Process stdz type Determines how you enter the actual process value of a standardize sample If this is set as Use Lab sample value the software screens prompt entry of the sample value during a standardize If this is set as Use Default value the software always uses the Default standardize level as the sample value Default std The default level value in engineering units that you use in the standardization procedure At standardization enter the actual level of the process material to override this default Stdz interval The intervals in days between standardize alarms The level transmitter alarms to indicate that a standardize procedure is due if the diagnostic alarm Stan
35. in engineering units and the sensor counts Go to the Add new data pt screen from the Calibration Linearizer Linearizer data Linear data collect menus and follow the prompts to enter the data LSGH User Manual 3 17 Calibration Step 4 Calculating the linearity Note The simple method of initial calibration does not use this step After collecting the data for a linearizer table the transmitter uses the data to calculate a new calibration linearizer table The Calc linearity function initiates this calculation You must perform this step before the Calculate Calibration step described in the next section Calculating a new linearizer table Calculate the linearizer after you perform the following steps Select non linear table for the linearizer curve Collect linearizer data Procedure 3 7 Calculating the linearizer 1 From the Main menu select Calibrations Linearizer Linearizer data Linear data collect Calc linearity 2 Atthe prompt select Yes to proceed with the linearity calculation The linearizer table calculates based on the level values 3 Press F2 to save Step 5 Calculate calibration After collecting the high and low level calibration data and calculating the linearity the level transmitter is ready to make the calibration calculation Calculating the calibration result Procedure 3 8 Calculating the calibration result 1 From the Main menu select Calibrations Initial cal T
36. liquids or bulk materials throughout a range on vessels reactors or tanks In order to achieve a level indication over the desired length it may be necessary to use more than one detector The manner in which these multiple detectors link together depends upon the types of detectors used Specific details on using multiple detectors are available in Appendix B Special applications Customer Service information Field Service Engineers regularly assist customers over the phone If you have a question or need help call Customer Service during office hours If your problem is an emergency for example line shut down because of VEGA equipment you can reach us 24 hours a day Table 1 2 Contact information VEGA Phone 513 272 0131 VEGA FAX 513 272 0133 When calling with a question if possible please have the following information ready VEGA Customer Order Number Locate on the engraved label on the source holder Sensor serial number Locate on the sensor housing inside the external housing Principle of operation The LSGH is a continuous level nuclear gauge The gauge receives a shaped or collimated beam of radiation from the source holder through the process material The material in the vessel acts as a shield that prevents a portion of the detector from exposure to the radiation field As the process material level decreases the detector senses more radiation As the process material level in
37. loop 3 2 Initial process 3 3 Choosing the initial calibration method 3 4 Standard method of initial calibration 3 5 Simple method of initial 3 7 Theory of initial calibration 3 8 Both calibration methods 3 8 Both calibration methods 3 8 Standard calibration method 3 9 Simple calibration method 3 9 Standard calibration method 3 9 Simple calibration method 3 10 Standard calibration method 3 10 Simple calibration 3 11 Both calibration methods 3 11 Choosing the 3 12 Non lineartable s 2 45 uae a gue eoi OX Ge Ros 3 12 Tables inate sac Cais oe eee BE 3 12 Choosing alinearizer method 3 13 Checking the gauge repeatability 3 13 Performing 3 13 Initial Calibration Pace eee RO RUE Rog at
38. number Note VEGA reserves the right to refuse any shipment that does not have a MRA number assignment Indicate the MRA on the repair service purchase order Clearly mark the shipping package with the MRA number Send the confirming purchase order and the equipment to VEGA Americas Inc Attention Repair Department 4170 Rosslyn Drive Cincinnati OH 45209 1599 USA Note You must first contact VEGA and receive a material return authorization number MRA before returning any equipment to VEGA VEGA reserves the right to refuse any shipment not marked with the MRA number LSGH User Manual APPENDIX INITIAL FACTORY SETUP Perform all setup functions from the Initial setup menu These functions include the following Process parameters Units Calibration parameters System parameters Time and date Source type Source function System information Alarms Dianostic Analog Process X Ray Auxiliary inputs Input filter Spans setup Note Perform setup before the initial calibration since some parameters are gt necessary for calibration LSGH User Manual A 1 Process parameters Units Level units The following engineering units are available for a level measurement In inches ft feet cm centimeters mm millimeters m meters 96 percent Spcl special used in conjunction with Custom units below Custom units You can program a custom unit if
39. of the level gauge there are no day to day requirements for external electronics Using a universal hand held terminal VEGA s LSGH level gauge is compatible with the Fisher Rosemount HART Communicator Model 275 or equivalent VEGA part number 236907 The HART Highway Addressable Remote Transducer Communicator uses the Bell 202 Frequency Shift Keying technique to superimpose high frequency digital communication signals on the standard 4 20 mA current loop To function the minimum load resistance on the 4 20 mA loop must be 250ohms Note In most cases the procedures in this manual are based on using the hand held terminal Refer to the instruction manual for your HART Communicator for information on the following Key usage Data entry Equipment interface In order to effectively use the features in VEGA s level gauge you must use VEGA s device description DD to program the HART communicator You may purchase a universal hand held terminal programmed with the device through VEGA VEGA part number 236907 Use firmware 2000 00 or higher when you use the hand held HART communicator to make NORM or vapor compensation See Appendix B Special applications for further information concerning NORM and vapor compensation LSGH User Manual 1 11 Introduction Using VEGA View software on a PC When you use an IBM compatible personal computer to communicate with the LSGH or other VEGA HART transmi
40. perform the following Change the process Shield the source Vary the radiation field While in sensor test mode after entering the desired number of counts it may be useful to look at the Process chain screen to view the variables affected by the raw counts value To view the Process chain screen back out of the test mode screens pressing the LEFT ARROW The transmitter continues to operate in sensor test mode until it times out after one hour or until you choose Exit test mode Start sensor test mode Procedure 4 6 Start Sensor test mode 1 From the Main menu select Advanced Fxns Test mode Sensor test mode Enter test mode At the prompt enter the value of the new counts you want to force At the prompt select Yes to start the test mode and send new data The transmitter continues functioning in sensor test mode until it times out after one hour or until you choose Exit test mode Exit sensor test mode Procedure 4 7 Exit Sensor test mode 1 From the Advanced Fxns menu select Test mode Sensor test mode Exit test mode 2 Atthe prompt select Yes to exit the test mode 4 8 LSGH User Manual Advanced functions Auxiliary input test mode The auxiliary input test mode simulates the auxiliary input frequency at a user defined number of counts The effect of auxiliary input counts depends on the auxiliary input mode Examples are Temperature probe Flow meter Second transmitter While in
41. screens Figure 3 2 Standard method calibration flow chart LSGH User Manual Calibration Table3 2 Standard method calibration Standard method calibration Step in flow chart Manual heading Page Check process engineering Units A 3 units Check process span Span settings process span A 7 Check linearizer type set to Choosing the linearizer type 3 12 table non linear Check the repeatability of Checking the gauge 3 13 measurement repeatability Perform Set Cal low level and Step 1 Set low level 3 15 Set Cal high level Step 2 Set high level 3 16 Collect linearizer data on known Step 3 Collecting linearizer 3 17 samples table data Perform Calc linearity Step 4 Calculating the linearity 3 18 Perform Cal result Step 5 Calculate calibration 3 18 3 6 LSGH User Manual Calibration Simple method of initial calibration Figure 3 3 illustrates the steps to prepare for and perform a simple method calibration Are process units set correctly Change units in Initial setup screens Is linearizer set to Table non linear Change linearizer to Table non linear in Calibrations Linearizer Is process span set correctly Change measurement span in Initial setup screens Perform Set Cal low level and Set Cal high level steps in any sequence in Initial cal screens Per
42. shield the first time the gauge takes measurements in the field Only persons with a specific license from the U S NRC Agreement State or other appropriate nuclear regulatory body may remove the source holder lock If you have a source holder shield refer to the Model SHGL Addendum to the Radiation Safety Manual 244589 for further instructions Note Users outside the U S must comply with the appropriate nuclear regulatory body regulations in matters pertaining to licensing and handling the equipment Canadian and International Users Manual 239291 Radiation Safety Manual Addendum of Reference Information CD 244316 and the Model SHGL Addendum to the Radiation Safety Manual 244589 if applicable that came with the source holder and the appropriate current regulations for details Note Referto the Hadiation Safety for 0 5 General and Specific Licensees LSGH User Manual 2 9 Installation Field service commissioning call checklist In many U S installations an VEGA Field Service Engineer commissions the gauge To reduce service time and costs use this checklist to ensure the gauge is ready for commission before the Field Service Engineer arrives Mount the source holder and detector per the VEGA certified drawings Allow access for future maintenance Make all wiring connections per the certified drawings and the Wiring the Equipment section in this manual Tie in the wiring from the field transmitt
43. span Temp comp gain The current value of the temperature compensation gain Use this to adjust for inherent sensor output change with temperature Uniformity gain The current of the uniformity gain Use this to force all level sensors to output the same counts at a given radiation field Most level applications do not use uniformity gain and have it set as default value of 1 0 Source decay gain The current value of the source decay gain Use this to compensate for the natural decay of the radiation source which produces a lower field over time Stz gain The current value of the standardize gain that adjusts with each standardize procedure HV setting The set point for the sensor high voltage Aux channel chain The Aux channel chain screen displays the values in Table 4 3 Table4 3 Auxiliary channel chain screen display values Value Name Description Aux raw counts The frequency input counts from optional auxiliary input Filt counts The filtered auxiliary counts The filter dampening value is the number to enter for the auxiliary input filter time constant LSGH User Manual 4 8 Advanced functions Min Max history The min max history displays the minimum and maximum value for parameters since the last min max reset Table 4 4 lists these display values Table 4 4 Min Max history screen display values Value Name Description
44. the process source on if applicable Figure 1 3 Typical source holder Detector assembly Mounts opposite the source holder Inside the detector is a scintillation material The scintillation material produces light in proportion to the intensity of its exposure to radiation A photomultiplier tube detects the scintillator s light and converts it into voltage pulses The microprocessor receives these voltage pulses after amplification and conditioning by the photomultiplier tube The microprocessor and associated electronics convert the pulses into an output that can be calibrated LSGH User Manual 1 9 Introduction Power supply board Terminal Block gt RS 485 ground if applicable i CPU board Internal housing ground screw EE a O ENS ER y NIS A Mounting _ ____ gt 4 Bracket 2000 Figure 1 4 LSGH exploded view Figure 1 5 Scintillator material 1 10 LSGH User Manual Introduction Communicating with the gauge The LSGH is a transmitter that produces the current loop signal directly at the measurement site Use either a HART Communicator or HART modem and VEGA View or Ohmview 2000 software with a PC to enable the following Initial setup Calibration Other communication with the gauge You can make a connection anywhere along the 4 20 mA current loop line After setup and calibration
45. value for the measurement span From the Current loop span menu select 20 mA Level In the 20 mA Level screen enter the maximum value for the measurement span m Press F2 to send the setting to the transmitter System parameters The system parameters define settings for the internal operation of the level transmitter and the radiation source Time Current time in HH MM SS as set in the real time clock The time maintains during power failure for up to 28 days It is important to enter the correct time and date because they are used for several internal calculations Time reverts to 00 00 00 on clock failure Date Current date in MM DD YY month day year format The date reverts to 00 00 00 on failure A 8 LSGH User Manual Setting the time and date Procedure A 7 Setting the time and date 1 From the Main menu select Initial setup System parameters Time and Date 2 From the Time and Date menu select Time Enter the current time Press F2 to save the time setting Press the LEFT ARROW key to return to the previous Time and Date screen 3 From the Time and Date screen select Date Enter the current Date Press F2 to save the date setting 4 If using a hand held HART Communicator press F2 to send the updated parameters to the transmitter Source type Use the Source type feature to view or enter the isotope in the source holder that produces the radiation signal The VEGA factory
46. 0 1 12 differences with communicator 1 11 vessel agitators effect 2 3 View settings screen 3 1 W Wipe Interval A 10 X x ray alarm 5 1 5 6 setting parameters A 17 setting relay as A 17 Z zero counts 5 5 Index 4 LSGH User Manual VEGA VEGA Americas Inc 4170 Rosslyn Drive Cincinnati Ohio 45209 USA Phone 1 513 272 0131 Fax 1 513 272 0133 E mail americas vega com www vega americas com All statements concerning scope of delivery application practical use and operating conditions of the sensors and processing systems correspond to the information available at the time of printing VEGA Americas Inc Cincinnati Ohio USA 2011 Subject to change without prior notice 31558 US 110301
47. 4 3 Min Max history 4 eter em pede Re aom dense e XC eR gs 4 4 Resetting the minimum and maximum 4 4 To reset the minimum and maximum 4 4 New hardware or EEPROM corrupt 4 5 Proper response to New hardware found message if new hardware has been installed4 5 If a new CPU board has been installed 4 5 Proper response to New hardware found message if new hardware has not beeri installed vues RO Ux PRG BOR E MESA NR 4 6 CPU EEPROM Corrupt message or Sensor EEPROM Corrupt message 4 6 To repair the corruption from the EEPROM backup 4 6 Testmodes RED dA M En ede Need 4 6 4 7 Start milliamp output test mode 4 7 Exit milliamp output test mode 4 7 Sensortest mode a s ia xke ws EY E Ron Xs 4 8 Start sensor test mode 4 8 Exit sensor test Modes aai 0 do Pb oe denm e xu Gd ad 4 8 Auxiliary inputtest mode 4 9 Start auxiliary input test mode 4 9 Exit 11 4 9 Relay test modes Se EM ei
48. 4 5 Other advanced functions descriptions Value Name Description Sensor voltage The scintillator sensor voltage Poll address The HART poll address of the transmitter Each transmitter in a current loop must have a unique poll address This value is meaningful only when multiple transmitters connect on the same loop Firmware version The firmware version on the FLASH Hardware version The Hardware version number CPU serial number The GEN2000 CPU boards serial number Sensor serial number The GEN2000 unit serial number Temperature coefficients The algorithm that compensates for variations in measurement output with changes in temperature uses temperature coefficients The VEGA factory determines the coefficients through rigorous testing You cannot change these values through normal operation LSGH User Manual 4 11 Advanced functions Checking the sensor voltage poll address version and serial numbers Procedure 4 14 Checking equipment version and serial numbers From the Main menu select Advanced Fxns Other advanced 2 From the Other advanced screen select one of the following Sensor voltage Poll addr Firmware ver Hardware ver CPU Serial No Sensor Serial No View Temp coefs Select gauge type VEGA s nuclear density gauges use much of the hardware and software of the VEGA HART Level transmitt
49. 5 multiple detectors transmitters B 9 7 Ohmview 2000 Launcher program B 10 B 8 Ohmview 2000 RS 485 main screen B 11 9 RS 485 Master Main menu screen B 12 10 RS 485 Responder gauge data screen B 13 B 11 RS 485 Responder Function screen B 13 B 12 Responder function pull down menu B 14 13 RS 485 Communication Statistics 5 B 15 14 RS 485 Master Configuration screen B 15 LSGH User Manual B 15 Responder Main 5 16 B 16 NORM compensation system B 22 B 17 Placement of detectors for NORM compensation B 23 18 Interconnect LSGF with LSGH B 24 B 19 Dual detector interconnect terminals B 25 B 20 Vapor compensation system B 27 B 21 Interconnect DSGH with LSGH B 28 D 1 HART screen Transmitter not connected D 2 D 2 HART screen Online D 3 D 3 Initial Setup s soon nomen PO D 4 0 4 Process parameters D 5 D 5 System parameters D 6 6 er scar
50. 6 17 18 19 20 21 22 Middle level CENELEC ground Housing ground RS 485 connection enlarged Bottom level Low level alarm auto zero Additional detectors option Control room 4 20 mA output signal Modem PC Handheld terminal option mA input DCS Software To setup the RS 485 network you must have a copy of Ohmview 2000 version 1 0 4 or higher The Ohmview 2000 Launcher program has the RS 485 feature Select this feature to choose compensation types and view information about the gauges Ohmview 2000 Launcher Version 1 0 1 0 Ext Language About zipixi OHMART DSGH DSTH 2000 85485 NETWORK LSTH LJTH Data Logger Config File Convert Figure 7 Ohmview 2000 Launcher program LSGH User Manual gt Note If it does not connect click Disconnect click Exit and entirely close Ohmview 2000 Wait for 30 seconds and open the program again using the Launcher program Select another port After selecting the proper port the program remembers the last port used and selects it again Main Screen xj Connected to Tag Number Main Screen Address Exit Figure 8 Ohmview 2000 RS 485 main screen Current errors or alarms Tag number of the Master gauge Main Screen ag Number ADD 15 Disconnect icona Master jumper setting UNO CUM Master should not have a n
51. 9 xny jueuno ONZ SOA SOA amp 1501 Meu pues pues pues 0 jueM 1X3 epou 11215 epou Ng THE 5 L xne mau Ndu sjunoo meu indino mau ndul 2 2 Meu pues Z 59 SOA SOA j1ueAuno jsnfi dH esiunos isnipy sunos ysnipy as 5 xny Juana jndino 1501 1521 duie 19103 eziDJou3 xny 159 3 jal 1591 1521 1591 15281 e v dul xny 105 6 Z ino vui L 1591 Figure D 20 Test mode D 19 LSGH User Manual 4JeoDelv 1909 CLE THHHHHETE 1900 LL THHHHHE 1900 012 Sj8902 duio 51902 VVEVVVVV VVEVVVVV HHH THERE dw L 5 2198S JOA JOA Z 105095 9 2 5 p JOSUaS 13410 Figure D 21 Other advanced LSGH User Manual D 20 Ajlsuap od A 1
52. Technical Reference Manual LSGH Radiation Based Detector with HART Electronics for Density Measurement Document ID 31558 Nuclear Revision history Manual version Revision description 1 0 Initial release 1 1 Add RS 485 special application and Ohmview 2000 information 1 2 Electronics revision 1 3 Added certification information and IECex label 1 4 Changed company name logo and website Copyright 2011 VEGA Americas Inc Cincinnati Ohio All rights reserved This document contains proprietary information of VEGA Americas Inc It shall not be reproduced in whole or in part in any form without the expressed written permission of VEGA Americas Inc The material in this document is provided for informational purposes and is subject to change without notice GEN2000 is a registered trademark of the VEGA Americas Inc VEGA View and Ohmview 2000 are trademarks of VEGA Americas Inc HART is a registered trademark of The HART Communication Foundation ISO 9001 approval by Lloyd s Register Quality Assurance Limited to the following Quality Management System Standards ISO 9001 2000 ANSI ASQC Q9001 2000 Approval Certificate No 107563 VEGA Americas Inc 4170 Rosslyn Drive Cincinnati Ohio 45209 1599 USA Voice 513 272 0131 FAX 513 272 0133 Web site www vega americas com manual describes If you do not use the equipment per VEGA specification
53. Temp min max The internal temperature of the scintillator sensor in the LSGH model level transmitter Sensor min max The raw uncompensated counts from the detector Aux in min max The auxiliary input counts if used Last reset The date of the last min max reset Resetting the minimum and maximum history You can reset the minimum and maximum history values so that they record from the time of the reset To reset the minimum and maximum history Procedure 4 1 Resetting the minimum and maximum history From the Main menu select Advanced Fxns Min max history From the Min max history screen select Reset min max When prompted select Yes to reset the min max values or select No to cancel 8 Press F2 to save 4 4 LSGH User Manual Advanced functions New hardware or EEPROM corrupt The transmitter contains two electrically erasable programmable read only memory EEPROM chips The EEPROMs store all data specific to that sensor electronics pair for the installation The locations of the 5 Onthe CPU board Onthe sensor board Each EEPROM contains a backup of the other EEPROM The system monitors both 5 at power up to assure an accurate backup If you install a new CPU board the EEPROM performs a backup of information on the CPU and the sensor boards do not match The software signals the discrepancy with the error message New Hardware Found The transmitter does not automatic
54. Test mode Relay test mode Enter mA test mode 2 Atthe prompt select Energize relay or De energize relay The transmitter continues functioning in Relay test mode until it times out after one hour or until you choose Exit relay test Exit relay test mode Procedure 4 11 Exit Relay test mode 1 From the Advanced Fxns menu select Test mode Relay test mode Exit relay test Temperature test mode The temperature test mode enables the user to manually force the LSGH sensor temperature probe output to a specified value This is useful for verifying the scintillator sensor temperature compensation Start temperature test mode Procedure 4 12 Start Temperature test mode 1 From the Main menu select Advanced Fxns Test mode Temperature test mode Enter Temp test 2 Atthe prompt enter the value of the new temperature that you want to force The transmitter continues functioning in Temperature test mode until it times out after one hour or until you choose Exit Temp test mode 4 10 LSGH User Manual Advanced functions Exit temperature test mode Procedure 4 13 Exit Temperature test mode 1 From the Advanced Fxns menu select Test mode Temp test mode Exit Temp test mode 2 Atthe prompt select Yes to exit the test mode Other advanced functions The information that displays in the Other Advanced functions is useful for diagnostics Table 4 5 lists the value name and descriptions Table
55. agnostic alarm relay and if the diagnostic condition is set to On in the Initial setup screens conditions and recommended actions Gauge status diagnostics screens To check the status of the system you can use the Diagnostics screen from the Gauge status menu to scroll through a series of checks This screen indicates only the status historical occurrences are stored in the Diagnostic history screens from the Gauge status View history menus Note Refer to the table on page 5 4 for a summary of all diagnostic alarm Some conditions are self repairing for example RAM and EEPROM corruption Therefore these may appear in the history screens but not in the diagnostic screens You can view the status of all diagnostic alarms in the Diagnostics screen from the Gauge status menu 5 2 LSGH User Manual Diagnostics and repair Acknowledging diagnostic alarms If a condition is in alarm you can acknowledge it turn it off in the Diagnostics screen from the Gauge status menu The following alarms are exceptions to this rule Source wipe due Shutter check due Standardize due These exceptions acknowledge when the function performs Note If the relay is set as a diagnostic alarm you must acknowledge all gt diagnostic alarms to reset relay Checking and acknowledging the diagnostic alarms with Gauge status Procedure 5 1 Checking and acknowledging diagnostic alarms From the Main menu select Ga
56. ally perform a backup in case the discrepancy is not due to new hardware but some corruption of the EEPROM Note Only use the New hardware functions if you replace the CPU board This function is not necessary if installing a completely new detector assembly The new detector assembly includes the CPU board and the sensor assembly Proper response to New hardware found message if new hardware has been installed When you install a new CPU board you must verify installation in the New hardware screen This function enables new backups of the EEPROMs If a new CPU board has been installed Procedure 4 2 New Hardware Found message with new CPU board 1 From the Main menu select Advanced Fxns New hardware New CPU board 2 The prompt Verify New CPU Board Installed displays Select Yes to allow new backups on the EEPROMs or select to cancel LSGH User Manual 4 5 Advanced functions Proper response to hardware found message if new hardware has not been installed CPU EEPROM Corrupt message or Sensor EEPROM Corrupt message If there has not been an installation of a new CPU board and the error message New Hardware Found displays then one of the EEPROMs is probably corrupt You normally can repair the corruption with the EEPROM backup Caution If you suspect that an EEPROM is corrupt we recommend you call VEGA Field Service for advice before performing the following procedure To repair the c
57. are available in the Calibration chapter of this manual Note While in milliamp test mode the HART communication may post a Status error This is expected and not an indication of a failure If the message Status Error Ignore Next xx Occurrences displays select Yes to ignore the Status Error Start milliamp output test mode Procedure 4 4 Start mA output test mode 1 From the Main menu select Advanced Fxns Test mode mA Out test mode Enter mA test mode At the prompt enter the value of the current output you want to force At the prompt select Yes to start the test mode and send new data The transmitter continues functioning in milliamp test mode until it times out after one hour or until you choose Exit mA test mode Exit milliamp output test mode Procedure 4 5 Exit mA output test mode 1 From the Main menu select Advanced Fxns Test mode mA Out test mode Exit mA test mode 2 Atthe prompt select Yes to exit the test mode LSGH User Manual 4 7 Advanced functions Sensor test mode The sensor test mode simulates the sensor output at a user defined number of raw counts This is before application of the following Temperature compensation Sensor uniformity gain Standardize gain The true sensor output is ignored while the transmitter is in sensor test mode Sensor test mode is extremely useful for verifying the electronics and software response to input counts without having to
58. asurement indication that is repeatable but not accurate between the Cal Low Level and Cal High Level points The measurement indication is not linear with respect to the actual process level In some applications accuracy is not critical and this method is valid If your application requires a linear or accurate indication of the actual process level you must use the standard method of calibration 34 LSGH User Manual Calibration Standard method of initial calibration Figure 3 2 illustrates the steps to prepare for and perform a standard method calibration Afe process gt lt units set correctly 4 gt bw p 4 Change units in Initial setup screens Yes LC SC s linearizer lt set to Table S hange linearizer to Table non linear in Calibrations Linearizer de AS process lt span set N correctly EX N Yes No hange measurement span in Initial setup 2 screens Perform these data collection steps in any sequence Perform Set Cal low level and sequence in Initial cal screens Set Cal high level steps in any lt samples using the function Collect Collect linearizer data on known data point in the Linearizer Perform Calc linearity function in the Linearizer screens Perform Cal result function in Initial cal
59. at it This ensures the continuing proper operation of the source ON OFF mechanism if applicable Many regulatory agencies for example the U S NRC require periodic testing of the ON OFF mechanism Refer to the Radiation Safety for U S General and Specific Licensees Canadian and International Users Manual 239291 Radiation Safety Manual Addendum of Reference Information CD 244316 and the Model SHGL Addendum to the Radiation Safety Manual 244589 if applicable that came with the source holder and the appropriate current regulations for details Stable temperature Mount the level gauge on a portion of the line where the temperature of the process material is relatively stable Process temperature can effect the gauge indication The amount of the effect depends upon the following Sensitivity of the gauge Temperature coefficient of the process material 2 2 LSGH User Manual Installation Protect insulation If insulation is between the measuring assembly and the process protect the insulation from liquids The absorption of a liquid such as water can affect the gauge indication because it blocks some radiation Avoid internal obstructions The best possible installation of a nuclear level gauge is on a vessel that has no internal obstructions agitator baffle manways and so forth directly in the path of the radiation beam If one of these obstructions is present it can shield the radiation from the detector
60. at it indicates Count Range vs 96 Span as shown in Figure 3 6 To construct the linearizer table a data point calculates for every 2 5 of the span View or edit these points in the Linearizer table screen 3 10 LSGH User Manual Calibration Simple calibration method The internal software calculates a straight line between the Min Level and Max Level based on the Cal Low Level and Cal High Level 100 Standard Count Range 096 1009 96 Span 00 Figure 3 6 range vs shown in linearizer table Both calibration methods Figure 3 7 illustrates the effect on the final output of using the non linear table vs the linear table for the linearizer Using the non linear table linearizer in the standard method produces a linear output Using the linear table linearizer table produces a non linear output Max Level Standard Indicated Level Simple Min Level Min Level Max Level Actual Level Figure 3 7 Indicated level vs actual level LSGH User Manual 3 11 Calibration Choosing the linearizer type The level transmitter response curve is non linear due to the measurement method of radiation transmission The linearizer determines the shape of the curve between the endpoints As part of the signal processing necessary to produce a linear final output with respect to the change in level of process material the level transmitter offers the followin
61. ay perform the following to the source holder Dismantle Install Maintain Relocate Repair Test VEGA Field Service engineers have the specific license to install and commission nuclear gauges and can instruct you in the safe operation of your level gauge To contact VEGA Field Service call 513 272 0131 Users outside the U S and Canada may contact their local representative for parts and service Canadian and International Users Manual 239291 Radiation Safety Manual Addendum of Reference Information CD 244316 and the Model SHGL Addendum to the Radiation Safety Manual 244589 if applicable that came with the source holder and the appropriate current regulations for details Refer to the Radiation Safety for U S General and Specific Licensees LSGH User Manual 1 1 Introduction Unpacking the equipment accordance with your U S Agreement State U S NRC or your country s Caution Make sure that you are familiar with radiation safety practices in applicable regulations before unpacking the equipment Unpack the unit in a clean dry area Inspect the shipment for completeness by checking against the packing slip Inspect the shipment for damage during shipment or storage If the detector is included as a separate package in the shipment inspect the assembly for damage that may have occurred during shipment or storage If there was damage to the unit during shipment file a claim against the
62. ble PC Process alarm override switch If the output relay is set as a process alarm relay high or low level alarm you can install an override switch to manually deactivate the alarm If you do not install an override switch the process alarm relay de energizes only when the measured level is out of the alarm condition The function of the output relay is set in the Alarms screen from the Initial Setup menu 2 8 LSGH User Manual Installation Conduit Conduit runs must be continuous and you must provide protection to prevent conduit moisture condensation from dripping into any of the housings or junction boxes Use sealant in the conduit or arrange the runs so that they are below the entries to the housings and use weep holes where permitted You must use a conduit seal off in the proximity of the housing when the location is in a hazardous area Requirements for the actual distance must be in accordance with local code If you use only one conduit hub plug the other conduit hub to prevent the entry of dirt and moisture Commissioning the gauge Depending on the type of source holder the process of commissioning the gauge can include the following Taking appropriate radiation field tests Checking the pre programmed setup parameters Calibrating on process Verifying the working of the gauge VEGA Field Service Engineers typically commission the gauge It is necessary to remove the source holder lock or
63. carrier reporting the damage in detail Any claim on the VEGA for shortages errors in shipment etc must be made within 30 days of receipt of the shipment If you need to return the equipment see the section Returning equipment for repair to Ohmart VEGA in the Diagnostics and repair chapter After you unpack the equipment inspect each source holder in the shipment to assure that the operating handle is in the OFF position In the event that you find the handle in the ON position place it in the OFF position immediately and secure it Note This is not applicable to all source holders Note Most source holder models accept a lock Call VEGA Field Service A immediately for further instructions at 513 272 0131 if the source holder has one of the following conditions i1 Does accept a lock and there is no lock on i The lock is not secured i You are unable to secure the lock i operating handle does not properly move into the OFF position Refer to the Radiation Safety for U S General and Specific Licensees Canadian and International Users Manual 239291 Radiation Safety Manual Addendum of Reference Information CD 244316 and the Model SHGL Addendum to the Radiation Safety Manual 244589 if applicable that came with the source holder and the appropriate current regulations for details 1 2 LSGH User Manual Introduction Storing the equipment Storing the source holder If itis necessa
64. causing an erroneous reading If the vessel has a central agitator the source holder and detector can mount to the vessel on an arc other than a diameter so that the beam of radiation does not cross the agitator You can also avoid other obstructions this way Avoid external obstructions Any material in the path of the radiation can affect the measurement Some materials that are present when the gauge initially calibrates pose no problem because the calibration accounts for their effect Examples of these materials are Tank walls Liners Insulation However when the materials change or you introduce new ones the gauge reading can be erroneous Examples of these situations are Insulation that you add after calibration absorbs the radiation and causes the gauge to erroneously read upscale Rapidly changing tank conditions due to material buildup Regular standardizations compensate for slowly changing tank conditions due to material buildup See the Calibration chapter for information on standardization Avoid source cross talk When multiple adjacent pipes or vessels have nuclear gauges you must consider the orientation of the source beams so that each detector senses radiation only from its appropriate source The best orientation in this case is for the source holders to be on the inside with radiation beams pointing away from each other LSGH User Manual 2 3 Installation Mounting the measuring assembl
65. connector 12 Install the plastic electronics cover 13 Install the housing cover 14 Turn on the power to the unit 15 Connect a HART communicator to the unit and verify that the unit is operational Note If you change the CPU board a New Hardware Found error message appears when you connect with the HART communicator In Ohmview 2000 click Diagnostics New hardware New CPU and click OK for a new backup of EEPROMS Mounting Nuts Replace Power Supply or CPU Board Requesting field service To request field service within the U S and Canada call 513 272 0131 from 8 00 A M to 5 00 P M EST Monday through Friday For emergency service after hours call 513 272 0131 and follow the voice mail instructions LSGH User Manual 5 17 Diagnostics and repair Returning equipment for repair to VEGA When calling VEGA to arrange repair service have the following information available Product model that is being returned for repair Description of the problem VEGA Customer Order C O Number Purchase order number for the repair service Shipping address Billing address Date needed Method of shipment Tax information Returning equipment for repair Procedure 5 5 Returning equipment for repair Call VEGA Nuclear Products Repair at 513 272 0131 between Monday and Friday 8 00 A M to 5 00 P M United States Eastern Standard Time VEGA assigns the job a material return authorization MRA
66. creases the detector senses less radiation Calibration of the level gauge associates the detector readings known as counts with the level of the material in engineering units The output range of the gauge is a 4 20 mA current loop signal in proportion to the level of the process See Appendix A Initial factory setup for examples of process value settings LSGH User Manual 1 7 Introduction System overview The LSGH detector uses VEGA s GEN2000 electronics The GEN2000 is VEGA s newest compact electronics that support 4 20 mA HART protocol frequency or field bus output The level measurement system consists of three main components 1 Source holder 2 Detector assembly LSGH 3 Communication device HART modem with PC and VEGA software or HART Communicator model 275 ES Hand held terminal ontrol NN System R 6A relay alarm Current loop Computer Figure 1 2 System overview 1 8 LSGH User Manual Introduction Source holder A cast or welded steel device that houses a radiation emitting source capsule Directs the radiation in a narrow collimated beam through the process vessel Shields the radiation elsewhere The model chosen for each particular system depends on the source capsule inside and the radiation specification requirements A shutter on the source holder either completely shields the radiation source off or allows it to pass through
67. ction limit High limit Relay action limit Low limit Relay setpoint 96 Setting up the process alarm BG NS Procedure 15 Setting up the process alarm From the Main menu select Initial setup Alarms Set relay function From Set relay function menu select Process and press F2 to enter Press the LEFT ARROW key to return to the Alarms menu From the Alarms menu select Mode configuration Process relay set Relay action From the Relay action screen select either High limit or Low limit From the Process relay set menu select Relay setpoint From the Relay setpoint screen enter the numeric value of the alarm setpoint in process units and press F2 to enter when finished entering the value If using a hand held HART communicator press F2 to send the setting to the transmitter A 14 LSGH User Manual lt The x ray alarm compensates for false indicated process values that occur when external radiographic sources the gauge detects Vessel weld inspections often use portable radiographic sources Detection of x rays by the gauge causes a false low reading and adversely affects any control based on the gauge output The x ray alarm distinctly changes the current loop mA output in response to a marked increase in radiation field It can also trigger the output relay if set up to do so When the gauge detects a radiation field above a set threshold as a percentage of th
68. d 5 6 Auxiliary x ray alarm 5 7 History Informations nee Ee RO a el a ee Oo a A FOE a ae ROS 5 8 Troubleshootirig x em uro RAN a 5 9 Test ipolhtS 2225 gos Poen Remi e alae Ry ROS 5 10 JOE o d spa heo Due cec le aly de up uno ONES E na dem 5 11 EEDundicators i um sue E RM XR dd 5 11 FLASH corrupt LED pattern 5 12 Maintenance andrepair 5 14 Periodic maintenance 5 5 14 Source wipe and shutter check recording 5 14 Recording a source wipe shutter check 5 14 Check when the next source wipe or shutter checkisdue 5 15 Spare a 5 15 Field repairprocedures 5 16 Replacing the CPU Power supply board 5 16 Replace the CPU or Power supply board 5 16 Requesting field service 5 17 Returning equipment for repair to VEGA 5 17 Returning equipmentforrepair 5 18 Appendix Initial factory setup 1 Process parameters 5 eun dog d P Rx Red A 2 Mz Pd rect
69. dardize due is toggled on LSGH User Manual A 3 Setting the calibration parameters Procedure A 3 Setting the calibration parameters 1 From the Main menu select Initial setup Process parameters Cal parameters 2 From the Cal parameters menu select the calibration parameters to view or edit as needed Refer to the help screens F1 or page 3 in this manual for descriptions View or edit the following parameters Data coll interval Warn 96 cal span Process stdz type Default std Stdz interval 3 If using a hand held HART Communicator press F2 to send the updated calibration parameters to the transmitter Filtering This feature enables change to the response time of the system by increasing or decreasing the averaging time that is used to filter the noise in the signal An increased time for averaging enables the accumulation of a greater number of readings and therefore produces a greater statistical accuracy However this is at the expense of response time to changes in the process Type RC exponential or rectangular window The level transmitter offers a choice of signal filters RC exponential or rectangular window The level transmitter has a sample rate of about 1 sample second but process variables generally change measurably on the order of minutes Electrical and source noise occur on the order of seconds so they can be filtered out with a low pass filter leaving only the chan
70. detector that measures only the radiation emitted by the product material A primary detector measures the process level measurement The signal from the secondary detector is input to the primary detector The primary detector runs an algorithm to subtract the effect of the material s radiation from the source holder s radiation Source holder DCS or HHT Wi a LSGHwith S86 option Frequency output LSGF Figure 16 NORM compensation system LSGH User Manual B 21 Special drawings for NORM Compensation Ideally identification of applications requiring NORM compensation occurs at the time of order The end user engineering contractor or both may have received certified drawings for the exact equipment ordered Refer to the drawings along with this section of the manual Note If the instructions on the drawings and this manual differ follow the drawing instructions They are specific to your order Installation requirements You must install the detectors correctly for NORM compensation to work Mount the primary detector so it is in the source holder radiation beam Mount the secondary detector so that it is NOT in the source holder radiation beam vessel top view source holder primary detector secondary detector Figure B 17 Placement of detectors for NORM compensation B 22 LSGH User Manual Detector wiring Wire the secondary detector into the primary detector as
71. du xny 2 MOU ON xny 2 SsoJppe 1581 205098 Z Josues Z MON Z SS920Jd Z edA 1oejos Josueg 189 M N adA peoueApe 51 199JaS Z 1 9 06 159 p M N Ss920Jd sux4 peoueApy Figure D 16 Advanced Fxns D 15 LSGH User Manual LSGH User Manual HHH 19497 1 dwooun Dunes AH 6 THHHE THE THHHE 2015 8 HHH HH uedS jo 6 HEHEH ii 1 0 8 HHH H Z 9100 2 15 Ayuuoju 9 dwog i 05 2 9 9 UIN 7 dt HHEH XEN 2 sjunod O1 0 Sjunoo SJUNO 6510 108095 2 0 s unoo xny n Bop due Jouueuo Jeuueuo xny SS920Jd 2 ssa2oJd Figure D 17 Process chain D 16 AA QQ INW 3888 152 9 19S9H ui xny Josues Z Figure D 18 Min max history D 17 LSGH User Manual SeA 2 ON L 2
72. e corruption EEPROM corrupt diagnostics Call EEPROMs 2 blinks Sensor VEGA Field Service and FLASH EEPROM corrupt 3 blinks Both EEPROMs corrupt 4 blinks RAM corrupt 5 blinks Memory mismatch ON solid combination of errors HART HART ON blinks when None Check HART device communicati receiving HART connection on loop on indicator messages and HART device functioning CPU Central Blinks at rate of 1 LED does not blink Check power input processing time per second CPU not functioning Replace CPU unit on CPU board board heartbeat Aux Auxiliary Blinks if auxiliary None Check auxiliary input input present OFF input wiring frequency if no auxiliary input terminals 11 and 12 signal present with a meter for indicator frequency signal Check auxiliary input equipment HV Sensor high ON high voltage OFF high voltage is Call VEGA Field voltage is in spec out of spec Service Field Radiation Cycles in None A 1mR hr 2 580nC kg hr field is usually required for a measurement Check for closed source shutter buildup and insulation LSGH User Manual 5 13 Diagnostics and repair Maintenance and repair Periodic maintenance schedule Since the VEGA level transmitter contains no moving parts very little periodic maintenance is required We suggest the following schedule to prevent problems and to comply with radiation regulations Table5 9 Periodic maintenance schedule Descripti
73. e cal low counts value it sets the current loop output at its value 10 seconds before the detection of the x ray interference It periodically dithers the output about the average cycling until the radiation field is back to the normal level or until a time out period of 60 minutes See the following figure for a diagram of the current loop output in x ray interference mode current loop output mA output 10s before x ray Dither level time ms Dither time Cycle period Figure A 3 X ray interference alarm output gt Note Only VEGA Field Service can adjust the time out period of 60 minutes and the reversion to 10 seconds before the x ray detection Table 6 X ray parameters and descriptions Value Name Description Threshold The percentage beyond the calibration low counts that triggers x ray interference suppression Default value 196 Dither level The magnitude in mA above and below the average output of the current loop dithering Default value 1mA Cycle period The repetition rate for presenting the current loop dither in x ray interference output mode Default value 1s Dither time The percentage of the cycle period to output the dither Default value 196 LSGH User Manual A 15 Setting up the x ray alarm parameters 3 Procedure A 16 Setting up the x ray alarm parameters From the Main menu select Initial setup Alarms Mode configuration Xray alarm Edi
74. edure B 6 Setting up NORM compensation Note calibrate the NORM compensation system you must be able to fill the vessel to the maximum level with radioactive product Procedure B 7 Calibrating with NORM compensation Set the product level to maximum Turn the source holder shutter to OFF this ensures that the only radiation picked up by the detector comes from the product and not the source Perform a data collect of the primary sensor From the Main menu select Calibrations Data collect Record the value of the counts from the primary data collect From the Main menu select Initial setup Auxiliary input NORM Aux data collect At the prompt select Yes to take data Record the value of the counts from the Auxiliary data collect LSGH User Manual 10 From the NORM compensation screen select Gain Adjust the gain value as follows Compare the counts from the primary and auxiliary data collects f the auxiliary channel data collect counts are higher than the primary sensor data collect counts adjust the NORM compensation gain down Select Yes to accept the counts and press F4 to enter If the auxiliary counts are lower than the primary counts adjust the NORM compensation gain up Repeat the auxiliary data collect and gain adjustment steps until the auxiliary channel counts are within 10 of the primary sensor counts If using a hand held HART communicator press F2 to send the
75. edures use exactly the same steps Refer to the VEGA View User Manual or Ohmview 2000 Electronic Manual Using Ohmview 2000 Software on a PC When you use an IBM compatible personal computer with windows and a Pentium processor to communicate with the LSGH or other VEGA HART transmitter field devices you must have a HART modem and Ohmview 2000 software The Ohmview 2000 software kit part number 243008 includes the following Modem Cables Software Ohmview 2000 RS 485 Network Ohmview 2000 Logger and Ohmview 2000 Configurator software is a window s program that emulates the HART Communicator Model 275 In addition Ohmview 2000 Charts the 4 20 mA current output graphically Stores and retrieves configuration data to disk Off line editing of configurations LSGH User Manual 1 13 Introduction 7 Ohmyiew 2000 Yersion 1 0 1 0 Figure 1 7 Example of Ohmview 2000 software The Ohmview 2000 software includes the main Ohmview 2000 software HART Communication Server Launcher program Ohmview 2000 Logger Ohmview 2000 File Configurator and the Ohmview 2000 Electronic User Manual When you insert the disk into your CD drive the program automatically starts installing these programs onto your hard drive onan pea eig o 1 14 LSGH User Manual Testing on the bench CHAPTER INSTALLATION To ensure a quick start up after installation you can test the detector assembly with the HART compa
76. een The functions available for each responder are Not Used Summation Vapor Comp Auto Zero External Summation To Change data 1 Select Function 2 Click On any Function cell 3 Press Accept Function Uni 1 Not used Not Used Unit 2 Not used Summetion Una 3 Auto Zero Unt 4 Not used Tal im Unit 5 Not used Unt 6 Not used 7 Surmahion ADD7 TOP Uni Not ured Uni 9 Not used Unit 10 Not usad 12 Not ured Unt 13 Not used Unit 14 Not used Unit 15 comp MES Figure B 12 Responder function pull down menu LSGH User Manual To change the function for a unit perform the following steps Procedure B 2 Changing the Responder unit function 1 Select the Function cell next to the unit number 2 From the pull down menu select the proper function type 3 Click Accept Function Communication Statistics Use this screen to view the number of times the Master unit has sent messages to the Responder units and the number of times the responder units have replied 1 xi Connected to Communication Tag Number ADD 15 Statistics MainScreen Figure B 13 RS 485 Communication Statistics screen B 14 LSGH User Manual Master Configuration Use this screen to setup the Polling requirements for each unit Polling activates the function for the unit To turn the polling On or Off double click on the Poll cell nex
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78. ents the Auto Zero feature This feature resets the zero point Setting up the Auto Zero feature To enable this feature using Ohmview 2000 s RS 485 Network program you must have firmware 2000 30 or 30C or higher for GEN2000 instruments Procedure B 5 Setting up the Auto Zero feature Determine the gauge and unit number for your point level indicators 2 Fill the vessel until the process is just above the low process indicator and record the count 3 Fill the vessel until the process is just below the low process indicator and record the count 4 Calculate the 50 level of the two count totals This number is your auto zero threshold Open the Ohmview 2000 Launcher program bM About Click RS 485 NETWORK LSGH User Manual B 19 Click Responder Function Select Responder Enter the Auto Zero and Select Auto SetPoint and click Accept Threshold rei c 10 The Auto Zero feature is enabled B 20 LSGH User Manual NORM naturally occurring radioactive material compensation Products that contain natural radioactive materials for example radon may require special compensation of the level measurement The radiation emitted by the product material can interfere with the measurement since the detector cannot differentiate between the radiation from the source and the radiation from the product Achieve compensation of the measurement by using a second
79. er the signal and power can run on a single cable 4 wire hookup two wires for power two for 4 mA 20 mA Relay Use relay contacts rated at 6 A at 240VAC 6A at 24VDC or 1 4HP at 120VAC Frequency input signal is 0 100 kHz maximum true digital LSGH User Manual 2 7 Installation 5 485 RS 485 The maximum cable length is 609 meters 2 000 feet Use shielded wire 18 or 20 AWG Connect positive terminals together Connect negative terminals together Connect ground terminals together SENSOR CONTROL ROOM AUXILIARY FREQUENG Y 1 1 1 1 I I 1 1 1 1 1 1 1 SYSTEM ARCHITECTURE I 1 1 I I 1 If 1 I 1 1 1 POWER CABLE PE CAL 5 R LOI NN POWER EARTH A LLL X GROUND OUTPUT SIGN CABLE OPTIONAL HAND HELD TERMINAL mA INPUT DCS PC OPTIONAL MODEM MODEM AL 9 HAND HELD ERMINAL Figure 25 LSGH wiring diagram Communication The HART hand held terminal can connect anywhere across the 4 20 mA wires to communicate with the level transmitter A minimum requirement is a 2500 load resistance on the current loop The hand held terminal is Rosemount model 275 or equivalent VEGA number 236907 A HART modem may also connect across the 4 20 mA wires to enable communication between the level transmitter and an IBM compati
80. er analog output to the DCS PLO chart recorder Ensure that the AC power to the transmitter is a regulated transient free power source UPS type power is the best If using DC power verify that the ripple is less than 100mV 1 1 000 Hz at 15 watts Note The equipment warranty is void if there is damage to the gauge due to incorrect wiring not checked by the VEGA Field Service Engineer Have process ready for calibration When possible it is best to have process available near both the low and high end of the measurement span When possible it is best to be able to completely fill and empty the vessel at the high and low levels for the initial calibration procedure and at 1096 increments in between for the linearization procedure Do not remove the lock or shield on the source holder Notify VEGA Field Service if there is damage to the source holder LSGH User Manual CALIBRATION Before using the level transmitter to make measurements you must perform the following Calibrate it to relate the detection of radiation from the source to the level of the process material Calibrate the current loop to a reference ammeter or the DCS Periodically you must standardize the system on process to adjust for changes over time Current loop analog output calibration Calibrating the current loop adjusts the 4 20 mA output to a reference either the PLC DCS or a certified ammeter It forces t
81. ers If your level transmitter indicates PV or Density as the process variable it was set incorrectly for a level type application Select gage type enables the users to set the software to operate as either a density or a level gage Procedure 4 15 Select gage type 1 From the Main menu select Advanced Fxns Select gage type Level 2 If using a HART hand held communication device press F2 to send Select gauge location The local gauge refers to a gauge that has its sensor electronics and processing electronics all contained in the same housing Set a gauge to remote if the sensor electronics and processing electronics are in separate housings and the process signal connects to the auxiliary input of the processing electronics Procedure 4 16 Select gage location 1 From the Main menu select Advanced Fxns Select Gage Locati 2 From the Select Gage Locati menu select either Local or Remote 3 If using a HART hand held communication device press F2 to send 4 12 LSGH User Manual DIAGNOSTICS AND REPAIR Software diagnostics The level transmitter system can alert users to potential problems by Posting messages on the HART screens Energizing the output relay Distinctly changing the current loop output Tracking the current status and history in the Gauge status screens Table5 1 Alarm types Value Name Description Diagnostic alarm Provides information about t
82. form Cal result function in Initial cal screens Figure 3 3 Simple method calibration flow chart LSGH User Manual 3 7 Calibration Table3 3 Simple method calibration Simple method calibration Step in flow chart Manual heading Page Check process engineering Units 2 units Check process span Span settings process span A 7 Check linearizer type set to Choosing the linearizer type 3 12 linear table Check the repeatability of Checking the gauge 3 13 measurement repeatability Perform Set Cal low level and Step 1 Set low level 3 15 Set Cal high level Step 2 Set high level 3 16 Perform Cal result Step 5 Calculate calibration 3 18 Theory of initial calibration This section explains both the standard and simple methods of calibration Both calibration methods Enter the values that define the maximum and minimum levels to measure in the Process span screens from the Initial setup Process parameters Spans menus These parameters are Max Level and Min Level and must be set correctly before any of the calibration steps Both calibration methods Collection of data points nearest the Maximum but not higher and Minimum but not lower levels occurs during calibration Refer to the Two Point Cal procedure in this manual for the steps necessary to collect these data points In Figure 3 4 stars indicate the Maximum and minimum level data points LSGH User Ma
83. g choices 1 Non linear table 2 Linear table Non linear table Use this option for a standard method calibration The non linear table is more accurate than the linear table This is because it the non linear table takes into account the inherent non linearity of a nuclear transmission measurement The non linear table can use data from the following Linearizer look up table data points that you collect and enter during the calibration process Linearizer data from an earlier model VEGA level gauge Table linear Use this option for a simple method calibration This option enables you to use a linear straight line set of data for a linearizer look up table You do not need to collect linearizer table data points The straight line linearizer calculates from the high and low level initial calibration points This requires you to perform the following Two point calibration Calculate the calibration This is not as accurate because it does not compensate for the non linearity of a radiation transmission measurement 3 12 LSGH User Manual Calibration Choosing a linearizer method Procedure 3 2 Choosing a linearizer method 1 Select Main menu Calibrations Linearizer Select linearizer 2 Onthe Select linearizer screen the currently used linearizer is displayed on the second line 3 From the Select linearizer screen select either Table non linear Table linear 4 Press F2 to enter Refe
84. ge in the process variable in the signal A 4 LSGH User Manual RC exponential RC exponential filtering simulates the traditional Resistance Capacitance filtering It provides an infinite impulse in which all of the previous samples contribute less and less to the average but all contribute somewhat The most recent samples are weighted most heavily in computing the average Compared to rectangular window filtering RC exponential filtering provides a quicker response to step changes in the process but has a larger noise band Damping o oc po E 63 t 1 Time Constant Figure RC exponential filtering Rectangular window filtering Rectangular window filtering computes an average based only on a specified finite number of samples All samples are weighted equally in the average Although it provides a slower step response since the most recent measurements are weighted the same as those further back in time it produces a less noisy signal Generally rectangular window linear averaging by itself produces results similar to combining RC exponential filtering with the fast cutoff feature Sample Weighting Sample Current Sample Figure A 2 Rectangular window filtering LSGH User Manual A 5 Damping The type of filter you choose determines the damping function With the RC exponential method the damping entry is equivalent to a time constant that is the amount of time i
85. he 4 and 20 mA outputs to the external reference The VEGA factory pre adjusts the current loop with a certified ammeter so it is very close to the outputs required To correlate the 4 20 mA to the process value set the span of the current loop output in the Loop Span screen from the Initial setup Process parameters Spans Current Loops Span menu See the Appendix A Initial factory setup section for details Note The current loop and process spans are independent and set separately The current loop span sets the level indications for the 4 mA and the 20 mA outputs The process span sets the endpoints of the calibration curve The current loop span and process span are set in the Initial setup screen from the Main menu A quick way to check the span settings is to use the View settings menu from the Initial setup menu LSGH User Manual 3 1 Calibration A direct measurement of the current is preferable Take this measurement by hooking the meter up in series with the instrument and the DCS However if you know the resistance of the DCS use a voltage measurement to calculate the current 1 Current Volt meter meter 000000 Detector Terminal Detector Terminal housing block pins 13 housing block pins 13 Figure 3 1 Measuring the current loop output Before a current loop calibration Connect an ammeter or the DCS to terminal connections 13 mA and 14 or the test poin
86. he following features Initiates all communication on the network Keeps a list of expected gauges on the network and cycles through each gauge requesting a response Updates the tag counts information from the responder gauges and tracks the network health The responder gauges have the following features Have a unique address for their reply Havea table listing other network gauges with information that it requires and the function of that data Can listen to all of the responses of the other gauges which enables each responder gauge to update the count information from other gauges if setup to do so LSGH User Manual B 7 Installation requirements EPL Fa d Ju a TAL Figure B 5 Typical installation vapor compensation amp auto zero Figure notes Radiation source holder Radiation beam Minimum process level measured Side view Radiation detector DSG with HART protocol output using RS 485 Radiation detector s level with HART protocol output using RS 485 LSGH User Manual Detector wiring Figure 6 Interconnect GEN2000 RS 485 multiple detectors transmitters Figure notes 1 Sensor location 2 High level alarm vapor density 3 Relay 4 DSGH detector 5 6 7 8 9 Power Earth ground Top level LFXG H or LSGH RS 485 signal cable 4 20 mA output LSGH User Manual B 9 10 11 12 13 14 15 1
87. he level transmitter system and alerts the user when periodic procedures are due Analog alarm Sets the current loop mA output to either 2mA or 22mA when the detector outputs zero counts Process alarm The process alarm allows the relay output to trip when the process level is either above high limit or below low limit a setpoint X ray alarm Distinctly changes the current loop mA output in response to a marked increase in the radiation field This prevents control problems when external radiographic sources are in the area for vessel inspections LSGH User Manual 5 1 Diagnostics and repair Table 5 2 Alarm type outputs Gauge status Option to Display HART Current loop and gauge Alarm type trigger relay message output affected history Diagnostic Yes Optional No Yes Analog No No Yes No Process Yes No No No X ray Yes No Yes No Note See page A 11 for further information about alarm function set up Gauge status Use the Gauge Status screens under the Main menu to check status and historical information Diagnostic alarms and HART messages Diagnostic conditions that are currently in alarm alert the user by three possible means 1 Diagnostics screens in the Gauge status menu 2 HART messages that appear when a HART device connects if the diagnostic condition is set to On in the Initial setup screens 3 Relay output if it is set as a di
88. i Aveyixny Figure 0 7 Auxiliary input LSGH User Manual D 8 19497 VW p t VHE HHH VW oc I9 e7 XEN Figure D 8 View settings D 9 LSGH User Manual 2 S Je doo uang p THHBE HH 12 02 zpis SS920Jd Z 5 Figure D 9 Calibrations LSGH User Manual D 10 HHH SJUNOD ON Z E iie S9A Z SOA UUM uod uir ON L juod eo 7 SUNOD slunog 58 anjen quiod uogeJqieo ON uod ott anjen rene 1nduj erep exe juod uoneagieo UBI Nig uBiu eui ss 901d 49S 1943 Suo 948 5 o 195 2 HE jeep exe o 4i erep aye 2120 SIUD
89. iagnostics check 5 5 in diagnostic history 5 8 Shutter check interval A 10 Smart Pro transferring data from C 1 Source decay gain 4 3 Source type A 10 Source wipe alarm setup A 13 frequency 5 14 recording when complete 5 14 setting the interval A 10 Source wipe due alarm acknowledge 5 4 source wipe due diagnostics check 5 4 in diagnostic history 5 8 span current loop analog output A 8 process A 7 setup A 7 with multiple detectors B 7 Spare parts 5 15 frequency output detectors B 3 specifications heater kit changes B 32 LSGH 1 4 Standardize due alarm acknowledge 5 4 LSGH User Manual Index 3 Index standardize due alarm setup A 13 diagnostics check 5 4 in diagnostic history 5 8 Standardize gain 3 19 4 3 Standardize interval A 4 Status Error 4 7 Stdz standardize counts 4 2 storage 1 3 summation mode setup A 18 System parameters A 9 T Tag A 11 TC temperature compensated counts 4 1 Temp sensor temperature 4 1 Temp comp gain 4 3 Temperature test mode 4 10 Test modes 4 6 Threshold A 16 Time A 9 time and date failure after extended power down A 9 re set if extended power down 2 2 5 4 U Uncompensated level 4 2 Uniformity gain 4 3 units A 2 V vapor compensation calibrating B 30 setting up B 29 VEGA Customer Service 1 6 Field Service 1 6 VEGA Field Service 1 1 5 17 VEGA Parts and Repairs 5 15 VEGA View software 1 1
90. indicates the system is using the default value as the actual value of the standardization material A screen that displays the detector counts the calculated process value and a field for the user to input the actual value of the level The prompt asks Edit Counts Select No to continue or Yes to input the average counts 4 Press F2to send LSGH User Manual ADVANCED FUNCTIONS Functions not required for normal operation of the transmitter are found in the software menu structure under the heading Advanced Fxns These functions are primarily for use by VEGA personnel for advanced troubleshooting and repair This chapter gives a basic explanation of these functions Note VEGA strongly recommends that you ask our advice before using any of these advanced functions Process chain The process chain is a description of the transmitter software s calculation of a level measurement from a radiation reading In the Process chain screen you can view intermediate values of the calculation to verify proper functionality of the software Primary channel Press the hot spot key 111 on the hand held communicator to display the Primary channel screen The display values for the Primary channel screen are Table4 1 Primary channel screen display values Value Description Temp The internal probe s measurement of the sensor temperature Sensor cnts The counts that are true counts output from the se
91. ing on your usage of the process alarm relay you may want to install a process alarm override switch to manually turn off an annunciator when the level transmitter relay energizes X ray alarm The x ray alarm compensates for false indicated process values that occur when the gauge detects external radiographic sources For example vessel weld inspections often use portable radiographic x ray sources X rays that the gauge detects can cause a false low reading and adversely affect any control based on the gauge output The x ray alarm can perform the following actions Alter the current loop output to indicate the alarm condition Trip the output relay if the relay is set up to do so The level transmitter enters the x ray alarm condition when it detects a radiation field above a set threshold The gauge sets the current loop output at its value 10 seconds before the condition It periodically dithers the output about the average cycling until the radiation field is back to the normal level or until a time out period of 60 minutes The standard x ray alarm only triggers when the counts are greater than the cal low count value These counts are found on the process variable menu If the x ray source is setup so that the counts increase but do not go above the cal low counts the x ray alarm does not trigger and the gauge reads the x ray interference as a true process shift 5 6 LSGH User Manual Diagnostics and repair Auxiliary
92. jumper Comm Stats Master Configuration Exit Figure 9 RS 485 Master Main menu screen LSGH User Manual B 11 The Main menu for the master contains the following selections Connect or Disconnect Click to connect or disconnect from the gauge Responder Gauge Data see page B 12 Responder Function see page B 13 Comm Stats see page B 14 Master Configuration see page B 15 Exit Click to exit program Responder Gauge Data This screen displays the units and the counts for each Responder gauge as selected If a unit does not display a count it has not been set up to do so or is not on the network Connected to Responder Tag Number ADD 15 Communication Read Only Address 15 RS 485 Master Pal Status Unit Count Tagid 5 Gauges C Al Possible Unt 2 Un 3 00 E t ime Unt 4 r Uni 5 No Check Box Selected Uni 6 r Uni 7 12 App roe Unit 8 r Uni Um 10 r Uni 12 Uni 13 Unt 14 Unit 15 Figure 10 RS 485 Responder gauge data screen B 12 LSGH User Manual Responder Function Use this screen to select the function for different units Connected to Responder Function Tag Number ADD 15 Configuration Address 15 5485 Master To Change data 1 Select Function 2 Click On any Function cell 3 Press Accept Function Figure B 11 RS 485 Responder Function scr
93. le dll ERa Bde a ete A 4 10 Start relay test mode 4 10 Extrelay tost modes wes A 4 10 Temperature test mode 4 10 Start temperature test mode 4 10 Exit temperature test 4 11 Other advanced functions 4 11 Checking the sensor voltage poll address version and serial numbers 4 12 Selectgauge type vuU ehe ROIG p Ws 4 12 Select gauge 4 12 Chapter 5 Diagnostics and repair 5 1 Software diagnostics 2 5 1 Stats Sa Sc 5 2 Diagnostic alarms and HART messages 5 2 Gauge status diagnostics screens 5 2 Acknowledging diagnostic 5 3 LSGH User Manual Checking and acknowledging the diagnostic alarms with Gauge status 5 3 Diagnostic alarm messages 5 3 Summary of diagnostic alarm 5 4 Analog alatm edie eR Ree ah aa eu x p acd 5 5 Process alarm i xoxo RU SU Os te RR RO SCRIP E RD SR eas 5 6 REPAY AIAN dt do dds wep ane ob E ay ei
94. lue 4 Repeat as often as necessary if checking repeatability LSGH User Manual 3 13 Calibration Initial calibration The standard calibration method involves five main steps Setting the low level and collecting Cal low data Setting the high level and collecting Cal high data 2 3 Collecting linearizer data 4 Calculating the linearizer 5 Calculating the calibration Perform these data collection steps in any sequence Your ability to empty and fill the vessel determines the best sequence The simple calibration method skips Step 3 and 4 If using the standard calibration method you may find it helpful to record the sensor counts and levels at each step in Table 3 4 Table3 4 Standard calibration sensor counts and levels record Data type Sensor counts Actual level eng units Cal low level usually empty Linearizer data point 0 Linearizer data point 1 Linearizer data point 2 Linearizer data point 3 Linearizer data point 4 Linearizer data point 5 Linearizer data point 6 Linearizer data point 7 Linearizer data point 8 Linearizer data point 9 Cal high level usually full and Linearizer data point 10 3 14 LSGH User Manual Calibration Step 1 Set low level Setting the low level for calibration requires the following activities Measurement with the level transmitter of the low proces
95. mum level transmitter detector length Last LSGH Smart Pro gt Summed frequncy output to Smart Pro Frequency output to last level detector 5 2 First LSGH Figure B 1 Multiple detectors summation B 2 LSGH User Manual Special drawings from VEGA Identification of applications that require multiple detectors occurs at the time of order The end user or engineering contractor or both receive certified drawings for the exact equipment ordered Refer to the drawings along with this section of the manual Note If the instructions on the drawings and this manual differ follow the drawing instructions They will be specific to your order Notes on the frequency output detector You may not receive a separate manual for the detector that provides the frequency output for the HART level transmitter especially if ordered as part of a complete system that included a HART level transmitter The certified drawings and this manual section have sufficient information in most cases Some special notes about the frequency output detector are below Model LSGF uses much of the same hardware as the model LSGH the HART level transmitter model They look similar so verify that you are installing the correct detector as the frequency output slave detector Model LSGF uses a different version of firmware than LSGH This firmware enables a frequency output instead of the HART output Some spare parts are uni
96. n seconds that it takes for the gauge reading to achieve 63 2 of a step change in process A range of integer values from 1 600 seconds is possible for this time constant entry With the rectangular window filtering the damping entry determines how many samples to use when calculating the average responding to 10096 of a process step change The maximum damping entry is 100 with this type of filtering Fast response cutoff Fast response cutoff temporarily bypasses the RC or digital filtering when the change in process exceeds this value in engineering units between successive samples This enables the level transmitter to respond immediately to large step changes while filtering the smaller variations in the signal caused by noise and normal process variations To turn off the fast cutoff filter set the value to zero Selecting a filter type damping and fast cutoff Procedure A 4 Selecting a filter type damping and fast cutoff 1 From the Main menu select Initial setup Process parameters Filtering Filter type 2 OntheFilter type screen the currently used filter type displays as either RC Exp Filter or Rect Window Filter To change the filter type select either RC Exp Filter or Rect Window Filter Press F2 to enter From the Filtering menu select Damping From the Damping screen enter the damping desired and F2 to enter Refer to the help screens F1 or page A 6 in this manual for details From the Filtering menu
97. ndex CPU board jumpers 5 11 LED indicators 5 11 replacing 5 14 5 16 CPU EEPROM corrupt 4 6 alarm acknowledge 5 3 5 4 alarm setup A 12 A 13 in diagnostic history 5 8 CPU EEPROM status diagnostics check 5 4 current loop calibrating on the bench 2 1 2 2 calibration 3 1 3 2 output fixed at 2mA or 22mA 5 5 output test mode 4 6 power source or sink mode 5 11 span A 7 A 8 current loop output test mode 4 7 custom units A 2 Customer Order C O Number 1 6 required for repairs 5 17 Cycle period A 16 alarm setup A 17 D Damping A 6 Data collect 3 13 Data collection interval using data collect on sample to check interval 3 13 Date A 9 Default standardize level A 4 Descriptor user defined in System information A 12 device description 1 10 diagnostic alarm acknowledging 5 3 messages 5 3 resetting relay 5 3 setting relay as A 14 diagnostic history 5 8 Dither level A 16 Dither time A 16 drawings B 3 B 23 E EEPROM corruption repair 4 6 LSGH User Manual Index 1 Index F Fast response cutoff A 6 Field service See VEGA Customer Service 1 6 filtering A 5 damping A 6 fast response cutoff A 6 of auxiliary input A 18 RC A 5 rectangular window A 6 FLASH corrupt alarm setup A 13 in diagnostic history 5 8 LED pattern 5 12 G gain 3 16 GEN2000 Local RS 485 Network B 7 ground screw internal and external 2 5 H hand held terminal 1 9 HART 1 9
98. ng up GEN2000 RS 485 local network 1 Checkthe wiring connections for power network and analog output for all gauges Disconnect the RS 485 network from the master gauge Verify that the master gauge has no jumpers made address F Power up the master gauge m Use the RS 485 configuration program to disable the RS 485 local network From the Main Screen pull down menu select Off Main Screen Connected to Tag Number E ERE Master Main Screen RS 485 Port Selection LSGH User Manual 6 Re connect the RS 485 wiring on the master gauge Note Wire the Master gauge relay as the RS 485 Network Fault relay Failure to use this relay can result in significant measurement error from incorrect compensation or no compensation 7 Confirm that all of the gauges have a unique address jumper configuration Connected to Tag Number ADD T Address 7 RS 485 Responder Power up all network gauges Confirm that all hardware is functioning properly 10 Run the RS 485 configuration program and configure the master gauge to poll all of the gauges on the network II gt Connected to Master Tag Number ADD 1 Poll Configuration To Change data 2 Press Change Setting Double Click on the Poll cell toggl On Click Chang Ora tars 11 Verify that all gauges are communica
99. nsor before application of the following Temperature compensation Standardize Sensor uniformity gains TC counts The temperature compensated counts that are sensor counts with application of temperature compensation LSGH User Manual 4 1 Advanced functions Table4 1 Primary channel screen display values continued Value Description Raw counts The raw counts that are temperature compensated counts with application of uniformity gain Adj counts The adjusted or sum counts that are raw counts plus auxiliary raw counts In most applications this does not use auxiliary input so sum counts are equal to raw counts SD counts The source decay counts that are sum counts with application of Source decay gain Stdz counts Displays standardize counts that are source decay counts with application of standardization gain 96 Cnt range The compensated measurement counts that express as a percent of the counts at the high and low endpoints of the calibration determined with the two point initial calibration This quantity shows where the current measurement is in relation to the total count range count range 100 x C Cs Cy where sum counts C Cy counts at Cal low level and Cal high level C counts range of span The measurement value as a percent of the measurement span The maximum and minimum level values are input in the Initial set
100. nsor voltage status Pass Fail Sensor high voltage fail The high voltage on the PMT is outside the usable range Check wiring on CN2 Consult VEGA Field Service Analog alarm If the current loop output analog output is stable at either 2mA or 22mA the analog alarm is set The analog alarm is set when the counts from the detector falls below a set threshold indicating that the detector is not outputting enough counts to make a meaningful measurement This is also known as zero counts If the analog alarm is on check the following Source holder shutter is in the On or Open position to create the required radiation field Extreme build up on walls or other material shielding the detector from the radiation field Damage or disconnection of electrical connections from sensor assembly to CPU board LSGH User Manual 5 5 Diagnostics and repair Process alarm The process alarm alerts users when the process level is above a setpoint high limit or below a setpoint low limit Enter the choice of low or high limit and the setpoint in the Initial setup screens See Appendix A Initial factory setup for details The process alarm works only with the output relay No HART messages gauge status diagnostics or history information saves for the process alarms The level transmitter acknowledges or resets the process alarm when the process value returns back to the setpoint value Depend
101. nual Calibration Standard calibration method A standard calibration method requires collection of intermediate data points Use the Linear data collect function from the Calibrations Linearizer menus to collect these data points In Figure 3 4 circles indicate the intermediate data points Cal Low Counts Raw Sensor Counts Cal High Counts Min Level Max Level Cal Low Cal High Level Actual Level eng Figure 3 4 Linearizer data collected at various process levels Simple calibration method The simple method of calibration does not require collection of intermediate data points Standard calibration method Internal software calculates a linearizer curve based on data points The curve is the most accurate between the Cal Low Level and Cal High Level as shown in Figure 3 5 For this reason it is best to take the Cal Low and Cal High samples as close as possible to the Min Level and Max Level to maximize the accuracy within the span LSGH User Manual 3 9 Calibration Simple calibration method Based on the Cal Low Level and Cal High Level the internal software calculates a straight line between the Min Level and Max Level Cal Low Counts Standard Raw Sensor Counts Cal High Counts Min Level ax Level Cal High Cal Low Level Actual Level eng units Figure 3 5 Raw counts vs actual level with linearizers Standard calibration method The linearizer curve maps on two axes so th
102. on Standardization adjusts the system by resetting one point of the calibration curve to an independently measured or known level The frequency of standardization depends on several factors including desired accuracy of the reading During the standardization procedure the system displays either A default value for the standardization condition A prompt to enter the actual level of the standardization condition The Initial factory setup appendix details how to set up the software for either prompt Automatic standardization reminder If you enable the standardization due alarm the level transmitter alarms when standardization is due The standardize interval is programmed into the calibration parameters setup Refer to Appendix A Initial factory setup for details on the following subjects Output relay setup e Standardization due alarm e Standardization interval LSGH User Manual 3 19 Calibration Performing a standardization Standardizing the gauge Procedure 3 9 Standardizing the gauge From the Main menu select Calibrations Process stdz 2 The Process stdz screen prompts if you want to take data Select Yes if you are ready with the standardization material in the process vessel to continue the standardization procedure The timer counts down while it is collecting data 3 Depending on how the system is set up it displays one of the following The message Gage Set up to Use Default Value
103. on Frequency Procedure Standardize As required by process conditions Calibration chapter usually at least once a month Source holder Every six months unless otherwise Radiation safety instructions shutter check required by applicable nuclear shipped separately with source regulatory agency holder and following instructions Source wipe Every three years unless otherwise Radiation safety instructions required by applicable nuclear shipped separately with source regulatory agency holder and following instructions Source wipe and shutter check recording The VEGA level transmitter can automatically remind users when a source wipe and shutter check are due using the diagnostic alarms If you use this feature you must record the source wipes and shutter checks in the software to acknowledge the alarm and to reset the timer Perform the following procedure after a source wipe or a shutter check Refer to the Radiation Safety for U S General and Specific Licensees Canadian and International Users Manual 239291 Radiation Safety Manual Addendum of Reference Information CD 244316 and the Model SHGL Addendum to the Radiation Safety Manual 244589 if applicable that came with the source holder and the appropriate current regulations for details Recording a source wipe or shutter check Procedure 5 2 Recording a source wipe or shutter check 1 From the Main menu select Initial setup System parameters Source function 2 From the
104. on your individual installation Note EDS users cannot transfer information to the HART electronics You must perform new setup and calibration procedures After the new electronics are installed refer to Appendix A Initial factory setup to enter the correct parameters Proceed to Chapter 3 Calibration for instructions to calibrate the gauge LSGH User Manual C 1 Use the following table to record data from the Smart Pro Table C 1 Smart Pro data record Smart Pro parameter Smart Pro screen item Value Corresponding HART parameter Standardize parameter 520 25 Standardize parameter 520 26 Process low value 520 32 Cal low level Low sample input Process high value 520 33 Cal high level High sample input Cal low counts 520 39 Counts low Cal high counts 520 40 Counts high Time constant 527 0 Filter Fast response filter 527 1 Threshold chrontrol Span 527 2 527 10 4 level Output max 527 11 20 mA level Linearizer curve On Off 528 41 N A Low product value 528 42 Min level High product value 528 43 Max level Use Table C 2 to record the linearizer table information Transferring this information makes a new initial calibration procedure unnecessary If you prefer to do a new initial calibration refer to the Calibration chapter of this manual for instructions To calculate the new value to enter in
105. orruption from the EEPROM backup Procedure 4 3 Repairing corrupted EEPROM 1 From the Main menu select Advanced Fxns New hardware No new hardware 2 Atthe prompt Do You Want To Reconcile Differences select Yes to allow restoration from backups on the EEPROMs or select to cancel Test modes Five independent test modes are available These test modes are mA Out test mode Sensor test mode 1 2 3 Aux Inp test mode 4 Relay test mode 5 Temperature test In the test modes the transmitter stops measuring the process material and allows manual adjustment of critical variables for troubleshooting The test modes function independently However you can use them in combination to test multiple variable effects of the test modes time out automatically after one hour if you do not manually exit Caution While in a test mode the transmitter is not measuring process and N so its current output does not reflect the process value If your DCS is controlling from the transmitter s current output be sure to remove the system from automatic control before entering a test mode The software screens prompt you to do so before entering test mode 4 6 LSGH User Manual Advanced functions Milliamp output test mode Use the milliamp output test mode to manually force the current output to a specified value This is useful for verifying the current loop calibration Instructions to calibrate the current loop
106. pan based on a percent change in vapor density from a reference density Refer to the Calibration chapter for a complete discussion of continuous level gauge calibrations Each time the gauge computes a level measurement a new Cal low counts value calculates which changes the percent span The algorithm for calculating the cal low counts is New cal low counts cal low counts 1 vc gain change in vapor density counts Where 96 change in vapor density counts reference counts vapor density counts reference counts Variable definitions Reference counts Reference counts are counts from DSGH at reference pressure condition determined during first step of calibration Vapor density counts Vapor density counts are counts from DSGH at current pressure condition VC gain VC gain is the vapor compensation gain user enters value during calibration Initial settings and calibration for vapor comp Setting up vapor compensation Procedure B 8 Setting up vapor compensation 1 Perform the following steps to set the DSGH up as a level gauge From the Main menu select Advanced Fxns Select Gage type Level Press F2 to send to the transmitter Return to the Main menu Perform the following steps to select Vapor compensation From the Main menu select Auxiliary input Compensation Type Vapor Press to enter You return to the Compensation menu 4 Return to the Auxiliary input menu LSGH User
107. press F2 to send the settings to the transmitter 6 Return to the Main menu Follow the procedures for performing a Two point calibration and linearizer curve from the Calibration chapter of this manual These procedures require changing the product level from minimum to maximum and collecting data During the calibration and linearization procedure maintain the reference pressure in the headspace LSGH User Manual B 29 9 10 11 12 13 14 Complete the linearization and calibration with the Procedure 3 7 Calculating the linearizer and Procedure 3 8 Calculating the calibration result See page 3 19 Set the product to the lowest possible level while at the maximum pressure Set the vapor density to its highest possible value Note the level indication it will probably be upscale From the Initial setup menu select Auxiliary input Vapor Gain Adjust the vapor compensation gain value until the level indication reads the correct minimum level value Press F2 to send to the transmitter Internal heater kit for applications rated at 50 A heater kit option is available for the LSGH for applications that require a 50 58 temperature rating With the heater option the internal temperature of the unit rises approximately 30 54 F The features of the heater are as follows The heater kit does not affect the functionality of the LSGH in any way There is no requi
108. ption Count Raw input signal coming from preamp GND Logic ground U5 pin 8 5V power supply test points referenced to Logic ground Jumpers Jumpers JP1 and JP2 on the power supply board set the current loop source or sink mode Do not change the jumpers from the current setting without consulting VEGA Field Service The jumpers for the current loop power source or sink mode are set as follows Table 5 6 Jumper settings Mode Jumper setting Source mode LSGH current loop is self powered JP1 1 2 JP2 2 3 Sink mode LSGH current loop is DCS powered JP1 2 3 JP2 1 2 The LSGH does not use jumpers J1 J4 on the CPU board LED indicators Check the basic functioning of the LSGH at the instrument with LED indicators on the CPU board They are visible when you remove the explosion proof housing pipe cap See the Tables on page 5 12 and page 5 13 for the summary of the LED indications Figure 5 4 illustrates the LED indicators Fx a z hj tH gt gt D b B x xw S oU B d A E sinking Omoooo omoooo Normal LED pattern Memory corrupt pattern Figure 5 4 LED indicators LSGH User Manual 5 11 Diagnostics and repair FLASH corrupt LED pattern The FLASH chip stores the device description DD software The transmitter does not operate if the FLASH chip is corrupt When this occurs the HART device that connects to the transmitter displays the mes
109. ptor screen enter a short message or note for the operator Press F2 to save If using a hand held HART Communicator press F2 to send the updated parameters to the transmitter Setting up alarms Four types of alarms are available 1 Diagnostic 2 Analog 3 Process 4 X ray The Diagnostics and repair chapter thoroughly explains use and acknowledgement of alarms When you set up alarms the following options are available Which alarm type triggers the output relay LSGH User Manual A 11 Which diagnostic messages appears on the HART display screens The output level of the analog alarm Specialized parameters of the x ray alarm Diagnostic alarm setup Diagnostic alarms give information about the condition of the level transmitter and can provide reminders to perform periodic maintenance procedures The reminders appear as messages on the HART screens when a HART device connects to the level transmitter In addition if the level transmitter relay is set as a diagnostic alarm the condition trips the relay on In the setup there is a list of every diagnostic alarm condition that can toggle On or Off If the condition flag is Off that condition does not cause the diagnostic alarm relay to trigger and no HART message appears The following table lists the available diagnostic alarms conditions See the Diagnostics and repair chapter page 5 1 for more details Table A 3 Diagnostic alarm conditions
110. que to the frequency output models See the following tables for the spare part descriptions and part numbers LSGF spare parts Table LSGF spare parts Description VEGA part number Power supply board 241519 LSGF CPU board 242281 125 mA fuse on power supply board 238661 2 0A fuse on power supply board 240539 LSGH User Manual B 3 Installation requirements A multiple detector application consists of one HART level transmitter and one or more level gauges that output a frequency to the HART transmitter Follow these installation guidelines Install the detector with the HART output model LSGH at the top of the vessel Install the other detector s beneath the HART detector The mounting tabs of the detectors define the active or sensing length Offset the detectors vertically so that the end of the top detector s active length corresponds to the beginning of the bottom detector s active length Place all detectors in the radiation beam Second detector active Overall active length First detector active length Figure 2 Placement of multiple detectors 4 LSGH User Manual Detector wiring Multiple detectors application require at least one frequency output detector and only one HART output detector SENSOR LOCATION LFXGH T eir DSGH or Soe LSGH detector Relay Power cable 2 per local Power Earth
111. r Manual Index Raw counts 4 2 Raw level 4 2 Real time clock fail alarm acknowledge 5 4 alarm setup A 13 in diagnostic history 5 8 Real time clock test diagnostics check 5 4 Record shutter check A 10 Record wipe A 10 Relay action limit High limit alarm setup A 15 Relay action limit Low limit alarm setup A 15 Relay setpoint 96 alarm setup A 15 relay settings diagnostic alarm A 14 process alarm A 15 x ray alarm A 17 Relay test mode 4 10 repairs material return authorization MRA number 5 18 returning equipment to VEGA 5 17 RS 485 Network B 20 S SD source decay counts 4 2 Select gage location 4 12 Select gage type 4 12 Select gauge location 4 12 Select gauge type 4 12 Sensor counts 4 1 Sensor EEPROM corrupt 4 6 alarm acknowledge 5 4 alarm setup A 13 in diagnostic history 5 8 Sensor EEPROM status diagnostics check 5 4 Sensor fail alarm acknowledge 5 5 alarm setup A 13 in diagnostic history 5 8 Sensor high voltage fail alarm acknowledge 5 5 alarm setup A 13 Sensor status diagnostics check 5 5 Sensor temp probe alarm acknowledge 5 4 Sensor temperature alarm setup A 13 in diagnostic history 5 8 Sensor test mode 4 8 Sensor voltage out of spec in diagnostic history 5 8 Sensor voltage status diagnostics check 5 5 shutter check alarm setup A 13 frequency 5 14 recording when complete 5 14 setting the interval A 10 Shutter check due alarm acknowledge 5 5 d
112. r to Appendix C Preserving information from Smart Pro to the LSGH for further instructions if you choose the Table linear option Checking the gauge repeatability Check the level transmitter measurement repeatability before performing the calibration Access the Data collect function in the Data Collect screen from the Calibrations menu to enable simple measurement of the process without altering the calibration or standardization values It enables the system to measure the process and report the number of sensor counts For more information about counts and the calculations performed to produce the final process value see the Process chain section in the Advanced functions chapter You can perform a data collect three or four times on the same level to check the repeatability of the sensor If the sensor counts vary widely you should increase the Data collection interval parameter from the Initial setup menu Process parameters menu Data coll interval screen Refer to page 3 for further information Performing a data collect Procedure 3 3 Performing a data collect 1 From the Main menu select Calibrations Data collect 2 Atthe prompt select Yes to enable the data collection to take place The on screen counter displays the time left Press F3 to abort if necessary to discontinue data collect 3 After data collection the screen displays the number of counts cnts output by the sensor Make note of the counts va
113. recurring after acknowledging the alarm cycle power to the unit If alarm occurs again it indicates a hardware problem Perform the procedure Repairing corrupted EEPROM on page 4 6 5 4 LSGH User Manual Diagnostics and repair Table 5 3 Diagnostic alarm conditions continued Diagnostic check Normal Error conditions HART message Diagnostic description Recommended action Alarm type 1 Not used Not used in standard software Consult VEGA special software Alarm type 2 Not used Not used in standard software Consult VEGA special software Shutter check due No Yes Shutter check due Alarm is acknowledged by logging a shutter check under Initial setup system parameters source functions screen See page 5 14 for details New hardware found No Yes New hardware found The CPU board detects a configuration mismatch The CPU board or sensor assembly may have been replaced or one of the EEPROM configurations is erroneous Refer to page 4 5 for more information Sensor status Pass Fail Sensor fail Less than one count seen in the last 10 seconds Configurable by Field Service Indicates the sensor is malfunctioning Call VEGA Process out of range No Yes Process out of measurement range The current process value is not within the limits set by the Max level and Min level in the gauge span settings Call VEGA Se
114. rement for special firmware The factory installs the internal heater kit if you order it with the LSGH Retrofits are available for previously installed equipment Three different kits are available one for 115VAC one for 220VAC and one for 24VDC The part numbers are shown below Table B 3 Heater kit part numbers Heater kit power VEGA Part Number 115 VAC 240723 220 VAC 240724 24VDC 241912 Changes to specifications The power rating changes from the specifications on page 1 5 of this manual when you install the heater kit on the LSGH With the installation of the heater the maximum power consumption increases to 25W The unit is either 115VAC 10 or 220VAC 10 instead of the standard 90 270VAC range or 24VDC LSGH User Manual APPENDIX PRESERVING INFORMATION FROM SMART PRO TO THE LSGH This appendix describes how to preserve information from an existing level gauge to the LSGH Preserving information from Smart Pro If you have existing Smart Pro electronics Smart Pro or Smart Pro Pac you can preserve information on setup and calibration from the Smart Pro electronics This information can transfer to the new transmitter electronics saving a great deal of time commissioning the gauge Note Smart 1 and Smart 2 electronics users can preserve the information from their systems and transfer it to the HART electronics We recommend consulting VEGA Field Service for help
115. rm occurs again it indicates a hardware problem Perform the procedure Repairing corrupted EEPROM on page 4 6 Real time clock test Pass Fail Real time clock fail The clock has failed This can cause a miscalculation of timed events If the transmitter has not been powered up for more than 28 days the time and date should be reset Reset the time and date If the time and date do not reset call VEGA Field Service Sensor temp probe test Pass Fail Sensor temp probe fail The sensor temperature probe may not be functioning which results in erroneous measurements Verify by checking the sensor temperature on the Advanced Fxns Process chain Primary channel screen If the temperature reads 0 5 C constantly the probe is broken and the sensor assembly may need to replacement Call VEGA Field Service Standardize due No Yes Standardize due Alarm is acknowledged automatically by the system when a process standardize procedure is completed under the Calibrations Process stdz screen Source wipe due No Yes Source wipe due Alarm is acknowledged by logging a shutter check under Initial setup System parameters Source function screen See page 5 14 for details CPU EEPROM status Pass Fail CPU EEPROM corrupt Non critical memory corruption has occurred on the CPU board EEPROM and may not have been resolved internally To check if the problem is
116. ry to store the source holder do so in a clean dry area Be sure the source holder shutter is in the OFF or CLOSED position if applicable Check the current local regulations U S NRC Agreement State or other to determine if this area must have any restrictions Storing the detector Avoid storage at temperatures below freezing Store the detector indoors in an area that has temperature control between 10 C 35 50 F 95 F and less than 50 relative humidity Store equipment in dry conditions until installation LSGH User Manual 1 3 Introduction Certifications This gauge is designed for certi cation compliance from the following agencies ATEX Standard CCOE India CEPEL INMETRO Brazil CSA FM Standard GOST B Standard GOST R Standard JIS Japan KTL Korea NEPSI China Safety Information for EX Areas Please note the EX speci c safety information for installation and operation in EX areas 19 Ex VEGA MAR 2000 Me No 6 198 103 IECEx CSA 09 0005X rcd INPUT 115V y 25 W 50 60 Hz CONTACT RATINGS 240VAC 2A OR 24VDC 2A OR 1 4HP 120VAC Ex d IIC T6 20 C TO 60 C OR Ex d IIB H2 T6 Ta 50 C TO 60 C IP66 WARNING USE A CABLE OR WIRING RATED FOR AT LEAST 90 C WARNING POTENTIAL ELECTROSTATIC CHARGING HAZARD SEE INSTRUCTIONS WARNING DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE MAY BE PRESENT Figure 1 1 IECex Label
117. s the unit is not CE compliant and may be damaged or cause personal injury Warning Use this equipment only in the manner that this 5 LSGH User Manual Table of Contents Revisionhistory ii List of Figures vii List of Tables Explanation of symbols 22 User s comments xiii Chapter 1 Introduction 1 1 Nuclear materials 1 1 Unpacking the equipment 1 2 Storing the equipment 1 3 Storing the source holder 1 3 Storing the detector 1 3 LSGH specifications 1 4 Typical applications 2 5 xe aR Rowe a a ee eee 1 6 Customer Service 1 6 Principle ofoperation 1 6 System overview 1 7 Source holder 4 eS ow dea ee a 1 8 Detector assembly 1 8 Communicating with the gauge 1 9 Using a universal hand held 1 1 9 Using VEGA View 1 10 Using Ohmview
118. s calibration 3 3 guidelines in calibration chapter Setting up summation mode Procedure B 1 Setting up summation mode 1 From the Main menu select Initial setup Auxiliary input Compensation Type Summation Press F4 to enter If using a hand held HART communicator press F2 to send the settings to the transmitter B 6 LSGH User Manual Calibrating with multiple detectors summation The calibration procedures are the same with one or multiple detectors The summing of the counts from multiple detectors is invisible to the user When setting the span set it for the length that is the total of all the detectors Note In many cases you cannot fill or empty the process vessel for calibration Use the following hints in these situations With the vessel empty open the source holder shutter to simulate low level set low level in software Close the source holder shutter to simulate high level set high level in software GEN2000 Local RS 485 Network This feature supports gauging systems that require two or more measurement systems that interact to provide a single compensated measurement The RS 485 network has the following gauge types Master Responder The gauges use the half duplex RS 485 communication network The gauges transfer specific information between each other in the field with only the master gauge actually communicating with the control room The master gauge has t
119. s level Entry of the actual level This sets the low end sometimes referred to in the U S as zero of the calibration curve Perform this procedure either before or after setting the high level Note Perform the data collection for the low and high level within ten days of each other for a good calibration The low and high values must be more than 10 percent of the process span apart for the most accurate calibration Increasing the process span usually increases the gauge accuracy Before starting the cal low data collection Fill vessel to its low level Have actual level value ready to enter Setting the cal low level Procedure 3 4 Setting the cal low density 1 From the Main menu select Calibrations Initial cal Two point cal Set Cal low level 2 The prompt Set process to desired value Take data displays Select Yes to start the data collection The on screen counter displays the time left If necessary press F3 to discontinue data collection 3 After collection of the data the screen prompts you to input the actual value Input the actual value in engineering units 4 a hand held Communicator press F2 to send the calibration setting to the level gauge LSGH User Manual 3 15 Calibration Step 2 Set high level Setting the high level for calibration requires the following activities Measurement with the level transmitter of the high process condition Entry of the ac
120. sage No Device Found In this situation the LED bank displays a distinctive pattern shown in Figure 5 4 Call VEGA Field service to report this condition Table 5 7 Power supply board LED summary Power Supply Board LED summary table Normal LED Description condition Error condition Recommendation 46V 6V DC ON OFF Verify 6V on test voltage electronics are points Check fuse level to not receiving 6V on Power Supply electronics DC voltage board Check power required for input terminals 1 2 functioning 24V Analog ON OFF 24V not Check loop wiring output loop present on 4 and jumpers JP1 voltage 20 mA output 4 JP2 on Power 20 MA output Supply board and HART P Replace Power communications are bad Supply board Relay Relay ON when None Check against relay condition relay is output terminals 3 indicator energized 4 amp 5 If no relay OFF when output replace relay is Power Supply de _ board energized LSGH User Manual Diagnostics and repair Table5 8 CPU board LED summary CPU Board LED summary table field indicator proportion to radiation field intensity at detector ON for 10 seconds for each mR hr then off for two seconds Can use LED 5 that blinks 1 time sec to time LED1 for field indicator LED Description Normal condition Error condition Recommendation Mem Memory OFF 1 blink CPU Check softwar
121. se this step This step allows you to collect data points between the high and the low calibration points so that the VEGA level transmitter calculates a response curve based on your data Note VEGA View and Ohmview 2000 users The linearizer data collection procedure is significantly different in VEGA View Refer to the VEGA View User Manual for instructions to collect linearizer data Before collecting the linearizer table data Prepare to set the level and take data Ten levels including the Cal low and Cal high levels are the maximum Prepare to enter the levels into the transmitter Youcan collect linearizer table data along with the data collection for the Cal low and Cal high levels Collecting linearizer table data Procedure 3 6 Collecting linearizer table data 1 From the Main menu select Calibrations Linearizer Linearizer data Linear data collect Collect datapoint At the prompt enter the actual known level of process Accept or reject the results when they display Repeat procedure for all available levels OQ RON Press F2 to send Note Include the data for the Cal low and Cal high with the linearizer data before you perform Calculate linearity If you did not perform a linearizer data collect while the process was at the levels for Cal low and Cal high you can manually add those values to the linearizer data To add a data point to the linearizer data you must know the level
122. settings to the transmitter Follow the procedures for performing a Two point calibration and linearizer curve from the Calibration chapter of this manual These procedures require changing the product level from minimum to maximum and collecting data Complete the linearization and calibration with the Procedure 3 7 Calculating the linearizer and Procedure 3 8 Calculating the calibration result See page 3 19 LSGH User Manual Vapor pressure compensation A nuclear level gauge works on the principle that the product shields the detector from the radiation beam allowing more or less radiation to strike the detector as the product level falls and rises For an accurate level indication the variation in the detector output should depend only on the product level However vapor pressure variations in the headspace of the vessel can cause erroneous product level indications This is because the vapor also blocks some of the radiation When the pressure is higher more radiation is blocked when the vapor pressure is lower less is blocked Therefore even at the same product level the detector can receive varying amounts of radiation depending on the head vapor pressure You can compensate for this by using a point detector model DSGH to separately measure the radiation passing through the vapor space This detector signal and the signal from the continuous level detector combine to eliminate the effect of the vapor press
123. shown in Figure B 18 Sensor location LFXG H DSG H or LSG H Housing ground CENELE C ground Output signal cable Power cable peKAN local code Auxiliary Eum a Frequency Input 1 ground CENELE C ground 1 Figure B 18 Interconnect LSGF with LSGH LSGH Power in L Power in N Relay WOON A UABRWN 6V T Aux Aux Figure B 19 Dual detector interconnect terminals Control room LFXG F DSGF LSGF 1 CO PO ES System architecture land helt terminal optional Power in Power in Freq Freq Aux Aux LSGH User Manual B 23 Initial settings and calibration requirements for NORM compensation Specific software settings and calibration procedures are required for NORM compensation Setting up NORM compensation Procedure B 6 Setting up NORM compensation From the Main menu select Initial setup Auxiliary input Compensation The compensation screen displays the current type of auxiliary input From the Compensation menu select Type Compensation Press F4 to enter If using a hand held HART communicator press F2 to send the settings to the transmitter Calibrating with NORM compensation Before calibrating make sure the NORM compensation option is set up Refer to Proc
124. st make an initial calibration before the gauge can make measurements of any accuracy Perform the initial calibration after the installation and commission of the gauge at the actual field site You do not need to repeat the initial calibration procedures as long as certain critical process and equipment conditions remain the same See page 3 19 for further information The gauge requires only a periodic standardization to compensate for changing conditions LSGH User Manual 3 3 Calibration Choosing the initial calibration method For each installation the user must choose one of two ways to calibrate the level transmitter The best calibration method depends on how you use the continuous level transmitter Read the following table to decide which method to use Table3 1 Calibration methods Standard method Simple method Use the standard method if the gauge Use the simple method if the gauge is is required to be repeatable and only required to be repeatable but accurately indicate the level of process need not accurately indicate the level of throughout the span process Typically used for vessels in which it is Typically used for surge bins or other critical to know the accurate level vessels under control that maintains one level The linearizer type chosen must be The linearizer type chosen must be Non linear table Linear table Note The simple calibration method produces a me
125. t the following values as necessary Threshold Dither level Cycle period Dither time If using a hand held Communicator press F2 to send changes to the transmitter Setting the relay as an x ray alarm Procedure A 17 Setting the relay as an x ray alarm From the Main menu select Initial setup Alarms Set relay function X ray Press F2 to enter If using a hand held HART Communicator press F2 to send the setting to the transmitter A 16 LSGH User Manual Auxiliary input settings The auxiliary input is an option for the HART level transmitter to receive a frequency signal With special software the frequency signal incorporates into the final output The software provides special settings for three typical uses of a frequency input Summation mode NORM compensation Vapor pressure compensation Note Refer to Appendix B Special applications for complete application information on using the following compensation methods 1 Summation i NORM 1 Vapor pressure Input filter Input filter is the auxiliary input signal with application of the time constant The filter type RC or rectangular window applied to the auxiliary input is the same as the primary channel Setting the auxiliary input filter Procedure A 18 Setting the input filter From the Main menu select Auxiliary input Filter TC In the Filter TC screen input the value for the filter time constant Press F2 to enter
126. t to the unit number Master Poll Configuration Connected to Master Tag Number ADD 15 Poll Configuration Address 15 RS 485 Master To Change data 1 Click On any Poll cell 2 Press Change Setting Poll 2519 Unit 4 of Uni 5 Unit amp Unit 7 On ADD Uni 8 Unit 9 Jnit 10 on Unit 11 On ADD 11 Unt 13 Double click 1 amp a 10 toggle On Change Setting MainScteen Click to change poll settings Figure B 14 RS 485 Master Configuration screen Responder Main menu To setup and test a specific responder unit connect the HART modem jumpers anywhere along the 4 20 mA output Procedure B 3 Connecting directly to a Responder 1 Open Ohmview 2000 Launcher 2 Select the proper Port number 3 Click Connect The Responder Main Menu screen displays LSGH User Manual Connected to Tag Number ADD C RS 485 Main Screen Port Selection Disconnect Responder Gauge Data Responder Function Figure B 15 Responder Main Screen The following choices are available on this menu Responder Gauge Data see page B 12 Responder Function see page B 13 Connect or Disconnect Click to connect or disconnect from gauge Exit Click to close program Initial setup Perform the following steps to set up the GEN2000 RS 485 local network Procedure B 4 Setti
127. ter Powder Coating LSGH User Manual 1 5 Introduction Table 1 1 LSGH specifications continued Weight Housing detector 5 44kg 1216 Current Loop Output Rating 4 20 isolated into 250 8000 Power Jumper selectable source active or sink passive mode Communication Relay Output Software user Diagnostic alarm or process high low alarm settable function Rating 6A at 240VAC or 6A 24VDC SPDTForm C or 1 4HP at 120VAC HART Protocol BEL202 FSK standard current loop output PC interface HART modem and VEGA communications software package Optional hand held interface HART Communicator model 275 hand held terminal with VEGA device descriptions loaded Auxiliary Input Type Frequency input 0 100 kHz Capability Possible function Optional NORM or vapor phase compensation multiple gauge linking amp others Electronics On board memory FLASH and two EEPROMs Real time clock Maintains time date source decay compensation and is Y2K compatible Diagnostics LED indication 6V Memory Corruption HART CPU Active Auxiliary High Voltage Relay amp Field Strength Power specifications change to 115VAC or 230VAC if an internal heater kit is used For more information see page C 1 1 6 LSGH User Manual Introduction Typical applications VEGA level gauges accurately indicate the level of
128. the unit you require is not in the standard list Choose the unit Spcl Special from the Units screen Enter the numeric conversion factor in the form custom units inch Setting the process units Procedure A 1 Setting the process units 1 From the Main menu select Initial setup Process parameters Process units Level units 2 From the Level units screen scroll through the list and choose the correct level unit for your process by pressing F2 to enter You will need to enter a custom unit if the unit you want is not in the list See the procedure for setting custom units in this section 3 After selecting the units press F2 to send the information to the transmitter This ensures that other setup and calibration functions you perform use the desired engineering units A 2 LSGH User Manual Setting custom units Procedure A 2 Setting custom units 1 From the Main menu select Initial setup Process parameters Process units Custom units PF ON From the Custom units screen select Conversion to length Enter the conversion factor in factor in custom units per inch Press F2 to enter Press the LEFT ARROW to move back to the Process units menu From the Process units menu select Level units In the Level units screen select Spcl as the units If using a hand held HART Communicator press F2 to send the units to the transmitter This ensures that other setup and calibration
129. tible communication device either a universal hand held terminal or a personal computer with a HART modem and VEGA software Bench testing enables you to check the following Power Communication Initial setup software parameters Some diagnostics Figure 2 1 FiberFlex 250 to 800 terminals A 13814 load resistor optional Mini clips Bench test setup Transmitter test points m PC running VEGA View LSGH User Manual 2 1 Installation Note You may need to reset the time and date if the transmitter has not had power for over 28 days The Real Time Clock Fail message may display It is important to enter the correct time and date because the clock is the basis for source decay calculations For instructions to set the time and date see page A 9 Many users choose to calibrate the current loop output the bench before mounting the detector on the process Refer to page 3 1 for further information on calibration of the current loop Location considerations At the time you ordered the level transmitter VEGA sized the source for optimal performance Notify VEGA prior to installation of the gauge if the location of the gauge is different from the original order location Proper location of the level gauge can sometimes mean the difference between satisfactory and unsatisfactory operation Note Try to locate the source holder in such a place that process material will not co
130. ting as expected igi xj Communication Statistics Ua I s LSGH User Manual B 17 12 13 14 15 Populate the master table to continuously poll all gauges Enable the RS 485 local network using the configuration program continuous communication starts Continue to monitor the RS 485 network to verify that all of the gauges are responding as expected For each gauge on the RS 485 local network Use the RS 485 Configuration software to configure the Responder table To Change data 1 Selact Function 2 Cick On any Function cell 3 Press Accept Function IT Um D Accept uncon Verify that the Responder table contains all of the gauges required for the particular gauge Verify that the Responder table is updating adi xj Responder Connected to Communication Read Only 5 mem 16 Connect each gauge using Ohmview 2000 and setup each gauge for the particular application Access the Ohmview 2000 electronic manual under Help for further information on setting up the gauge B 18 LSGH User Manual Auto Zero feature Use this feature with the RS 485 network to provide data to the primary level gauge The counts feed into the level gauge from the low point indicator on the vessel When the level gauge senses a preset threshold value it implem
131. tion From the Set relay function menu select Diagnstic and press F2 to enter If using a hand held HART communicator press F2 to send the setting to the transmitter Analog alarm setup The analog alarm uses the current loop analog output to signify that the sensor is outputting zero counts In this case the analog output sets to either 2mA 22mA and no longer tracks the process level The user can choose the 2mA or the 22mA setting for the analog alarm Table 4 Analog alarm conditions Alarm out 22mA Alarm out 2mA Setting the analog alarm output Procedure A 14 Setting the analog alarm output 1 From the Main menu select Initial setup Alarms Mode configuration Analog alarm Alarm output From the Alarm output menu select either 22mA or 2mA Press F2 to enter If using a hand held HART communicator press F2 to send the change to the transmitter LSGH User Manual A 13 Process alarm setup Use the process alarm setup to make the relay output a high or low process alarm For a low limit a process level below a set point energizes the relay for a high limit a process level above a set point energizes the relay Process alarms only work in conjunction with the output relay No HART messages post that relate to the process alarm You cannot use a relay as a diagnostic or x ray alarm if you have set it as a process alarm Table A 5 Process relay set alarm conditions Relay a
132. to the HART version linearizer table divide the Smart Pro value of each point by 100 For example if the Smart Pro value of point 2 is 630 enter 6 30 as the corresponding HART 5 0 point Table C 2 Linearizer record HART HART Linearizer Linearizer Smart Pro Smart Pro table table Smart Pro table points Screen item Value point span Value 100 0 528 0 0 0 1 528 1 2 5 2 528 2 5 0 3 528 3 7 5 4 528 4 10 0 5 528 5 12 5 6 528 6 15 0 7 528 7 17 5 C 2 LSGH User Manual Table C 2 Linearizer record continued HART HART Linearizer Linearizer Smart Pro Smart Pro Linearizer table table Smart Pro table points Screen item Value point span Value 100 8 528 8 20 0 9 528 9 22 5 10 528 10 25 0 11 528 11 27 5 12 528 12 30 0 13 528 13 32 5 14 528 14 35 0 15 528 15 37 5 16 528 16 40 0 17 528 17 42 5 18 528 18 45 0 19 528 19 47 5 20 528 20 50 0 21 528 21 52 5 22 528 22 55 0 23 528 23 57 5 24 528 24 60 0 25 528 25 62 5 26 528 26 65 0 27 528 27 67 5 28 528 28 70 0 29 528 29 72 5 30 528 30 75 0 31 528 31 77 5 32 528 32 80 0 33 528 33 82 5 34 528 34 85 0 35 528 35 87 5 36 528 36 90 0 37 528 37 92 5 38 528 38 95 0 39 528 39 97 5 40 528 40 100 0 LSGH User Manual C 3
133. ts H1 and H2 or anywhere along the current loop Make sure there is a 250 8000 load on the current loop If no load or an insufficient load exists on the loop it may require temporary placement of a resistor across terminals 13 and 14 Hook the meter or DCS in series with the load resistor Calibrating the current loop Procedure 3 1 Calibrating the current loop 1 Select Calibrations Current loop cal The Current loop cal screen prompts you to connect the reference meter 2 Press F2 The screen displays Setting Field Device Output To 4mA The analog output circuit on the transmitter sets the current to approximately 4mA 3 Read the ammeter and enter the actual milliamp reading Note If using a voltmeter calculate the current value 3 2 LSGH User Manual Calibration 4 The next screen prompts Field Device Output 4 00 mA Equal to Reference Meter Choose Yes if the ammeter reads 4 00 mA Choose No if the ammeter reads anything but 4 00 mA 5 Repeat until the meter reads 4 00 mA The meter approaches the 4 00 mA successively 6 Repeat procedure for 20 mA setting You can check the current loop output calibration at any time by using the test mode to output a user specified milliamp setting See page 4 7 for further information Initial process calibration Calibration establishes a reference point or points that relate the detector output to actual or known values of the process You mu
134. tter field device you must have a HART modem and VEGA View software The VEGA View software kit part number 237857 includes the following Modem Cables Software Manual VEGA View software is a DOS program that emulates the HART Communicator Model 275 In addition VEGA View enables the following Charts the 4 20 mA current output graphically Stores and retrieves configuration data to disk Off line editing of configurations 7 2000 Version 1 0 1 0 CO x File Communication Utilities Monitor Help Firmware Version 1 00 DEMO Type Density e Communication Statistics 100 Select Tabs Filtering Source Functions System Info Aux Input Process Info Gauge Setup Cal Parameters PY Units Spans Setup Gauge Type Calibration Level Gauge Info 1 Diagnostics Transmitter Location Alarms Local Linearizer Type Remote Equation RAE Status Linearizer Type Equation C Table Non linear C Table Linear Figure 1 6 Example of VEGA View software 1 12 LSGH User Manual Introduction Note There are some minor differences in operation of the VEGA View or Ohmview 2000 software and the hand held communicator Most significantly VEGA View and Ohmview 2000 software writes entries immediately to the transmitter but a hand held communicator only sends changes after pressing F2 This manual s instructions are mainly for the hand held communicator but most proc
135. tual level This sets the gain of the calibration curve Perform this procedure either before or after setting the low level Note You must perform data collection for the low and high level within ten days of each other for a good calibration The low and high values must be more than 10 percent of the process span apart for the most accurate calibration Increasing the process span usually increases the gauge accuracy Before starting the cal high data collection Fill vessel or pipe with high process or close the source holder shutter to simulate high process Have actual level ready to enter Setting the cal high level Procedure 3 5 Setting the cal high level 1 From the Main menu select Calibrations Initial cal Two point cal Set Cal high level 2 The prompt Set Process To High Calibration Point Take Data displays Select Yes to allow the data collection to take place The on screen counter displays the time left If necessary press F3 to discontinue data collection 3 After data collection the screen prompts you to input the actual value in engineering units The prompt Input Actual Value displays Enter the actual level in engineering units 4 If using a hand held communicator press F2 to send the calibration setting to the level transmitter 3 16 LSGH User Manual Calibration Step 3 Collecting linearizer table data Note The simple method of initial calibration does not u
136. tup xs axo ROS AUR a oe we d Ue 15 Setting 15 Xray alarm amp cc uem soy pem a ea rude DES 16 Setting up the x ray 8 A 17 Setting the relay as A 17 Auxiliary inputsettings A 17 Input TIlter 2 205 eme m m SAIL A 18 Setting the 11 A 18 Summation mode A 18 Appendix B Special applications B 1 Multiple detectors summation B 2 Special drawings rom B 3 Notes on the frequency output B 3 LSGE Spare Parise x ees et ei a Ble re AINE TR eds B 3 Installation requirements B 4 Detector WNG ess ack hls momo A he m n Pun RUE EV xA UE B 5 Initial settings and calibration B 6 Setting up summation mode B 6 Calibrating with multiple detectors summation B 7 LSGH User Manual GEN2000 Local RS 485 Network Installation
137. u must perform a memory backup to update the CPU board EEPROM with the information in the sensor board EEPROM Perform the memory back up in the New hardware screen from the Advanced Fxns menu Replacing the CPU or power supply board You may have to replace a circuit board if there is damage to one of its components Before replacing a circuit board check the troubleshooting flowcharts or call VEGA Field Service to be sure a replacement is necessary The sensor EEPROM contains a backup of the CPU board EEPROM After replacing the CPU board you must perform a memory backup to update the CPU board s EEPROM with the information in the sensor board EEPROM Procedure 5 4 To replace the CPU or power supply board Shut off the power to the gauge Remove the housing cover Remove the plastic electronics cover Remove the terminal wiring connector Remove the three 3 screws holding the electronics package in place Carefully pull the electronics package out of the housing fF ow Remove the appropriate board from the clamshell assembly by removing the three 3 mounting nuts Note If you are changing the CPU board you must move the old firmware chip to the new board if the new board firmware is different LSGH User Manual Diagnostics and repair Carefully reconnect any ribbon cables Install the electronics package in the housing 10 Replace the three 3 mounting nuts 11 Reconnect the terminal wiring
138. uge status Diagnostics The first diagnostic condition displays Press F2 to view all the conditions If a diagnostic condition is in alarm you can either Clear the alarm by choosing Acknowledge alarm or ignore the alarm by pressing NEXT 4 The message Current Status Complete displays after viewing all of the conditions Diagnostic alarm messages Active alarm messages may appear on the HART device if the alarm condition is toggled on You can toggle individual alarm conditions On or Off in the Diagnostic alarm screens from the Initial setup Alarms Mode configuration menus When a HART device initially connects to the level transmitter any conditions in alarm display on the screen LSGH User Manual 5 3 Diagnostics and repair Summary of diagnostic alarm conditions Table 5 3 Diagnostic alarm conditions Diagnostic check and Normal Error conditions HART message Diagnostic description Recommended action RAM status Pass Fail RAM corrupt RAM memory corruption has occurred and has been resolved internally Repeated triggering of this alarm indicates a possible hardware problem Consult VEGA Field Service Sensor EEPROM status Pass Fail Sensor EEPROM corrupt Non critical memory corruption has occurred on the sensor pre amp board EEPROM and may not have been resolved internally check if the problem is recurring after acknowledging the alarm cycle power to the unit If ala
139. up screens A graph of percent count range vs percent process span indicates the non linearity of the radiation transmission measurement If using a table linearizer the values in the table are percent count range and percent process span Raw level The level in inches without the time constant or rectangular window filter Uncomp Lvl The level in inches without the time constant or rectangular window filter Level The process value that is the level or other indication in engineering units after applying the filter This value relates to the current loop output 4 2 LSGH User Manual Advanced functions Process variables The process variables screen displays the values in Table 4 2 Table4 2 Process variable screen display values Value Name Description Counts low The temperature and sensor uniformity gain compensated counts from the sensor at the Cal low level Determination of the Cal low level occurs during the initial calibration procedure Counts high The temperature and sensor uniformity gain compensated counts from the sensor at the Cal high level Determination of the Cal high level occurs during the initial calibration procedure Max level The value in process units as entered in the Initial setup screens Use this to calculate the measurement span Min level The value in process units as entered in Initial setup screens Use this to calculate the measurement
140. ure on the level indication Smart Pro Density frequency output gt Level frequency output Figure B 20 Vapor compensation system B 26 LSGH User Manual Installation requirements A vapor compensation system requires two detectors the point detector model DSGH to measure the vapor space and the continuous level detector to measure the product level Both must be in the radiation beam from the source holder Mount the DSGH so that it is above the highest expected product level Detector wiring The level detector provides a frequency signal to the DSGH The output of the DSGH is the calibrated vapor compensated 4 20 mA signal for control and HART communication Figure B 21 illustrates the interconnection between the density gauge and the level gauges Sensor Control room location DSGH System architecture Optional modem Output signal ie H al HI Power cable per local codes WS Power zi SS zz CENELE C ground Optional hand held terminal Output signal cable SN imd E Power cable per il local codes E 22225 5 2 Auxiliary Mo i Frequency 77 Input Ho sin grouni CENELE C ground Figure B 21 Interconnect DSGH with LSGH LSGH User Manual B 27 Algorithm for vapor comp The vapor compensation algorithm adjusts the percent s
141. wo point cal Cal result 2 The screens display the results of the cal low and cal high sensor counts and values Review the values You can manually edit the counts and actual or new data can be collected by repeating the Set low and Set high procedures or press F2 to continue 3 The prompt Proceed with Calibration Calculation displays Select Yes to proceed with the calculation 4 Press F2 to save LSGH User Manual Calibration When a new initial calibration may be necessary Under most circumstances you do not need to repeat the initial calibration procedure The system requires only periodic standardization to compensate for drifts over time However certain events necessitate a new initial calibration The events are Measurement of a new process application contact VEGA for recommendation Process requires a new measurement span Entry of a new measurement span setting into the software Installation of a new radiation source holder Moving the level transmitter to another location in U S only specifically licensed persons may relocate the gauge Changes to the process vessel for example lining insulation or agitator Excessive build up or erosion of vessel that standardization cannot compensate for check standardize gain Standardize gain is greater than 1 2 after a standardization indicating it made a 2096 adjustment from the initial calibration Periodic process standardizati
142. x ray alarm VEGA has a system that can detect x rays that are causing process changes This System places a second detector outside of the radiation beam of the primary detector The second detector only monitors x ray interference The second detector has a frequency output that wires to the auxiliary input of the primary detector The primary detector s programming triggers the x ray alarm when the counts of the secondary detector are above a threshold Contact VEGA for more information about the x ray interference detection method Figure 5 1 illustrates the current loop output You can set the parameters of the output Refer to Appendix A Initial factory setup current loop output mA output 10s before x ray Dither level time ms Dither time Cycle period Figure 51 X ray interference alarm output LSGH User Manual 5 7 Diagnostics and repair History information Information about critical events stores in the Diagnostic history screens from the Gauge status View history menus You can view the newest and oldest trigger records of the following events RAM corrupt Sensor EEPROM corrupt FLASH corrupt Realtime clock fail Sensor temperature fail Standardize due Source wipe due New hardware found CPU EEPROM Alarm type 1 Alarm type 2 Shutter check due Sensor fail Process out of range Sensor voltage out of spec Use this information to determine if
143. xt wipe and Shutter check due features to view or enter the due date for the next source wipe and shutter check For more information see the Diagnostics and repair chapter Tag The tag is a unique eight digit identifier for instrument If provided at the time of your order this parameter is entered at VEGA factory prior to shipment Otherwise you can enter it on this screen Setting the tag identifier Procedure A 9 Setting the tag identifier From the Main menu select Initial setup System parameters Tag In the Tag screen enter the eight digit identifier for the instrument Press F2 to enter B Press F2 to send the updated parameters to the transmitter A 10 LSGH User Manual System information Message Use this text field to record information or messages For example this is where you can record a message to operators or notes about the gauge Procedure A 10 Setting the system information message 1 From the Main menu select Initial setup System parameters System info Message In the Message screen enter messages or notes for the operator Press F2 to enter If using a hand held HART communicator press F2 to send the updated parameters to the transmitter Descriptor This is a shorter message field to record information or messages Procedure A 11 Setting the descriptor 1 From the Main menu select Initial setup System parameters System info Descriptor In the Descri
144. y There are two sets of mounting tab brackets provided by VEGA that bolt onto the brackets securely welded to the vessel or in some cases nearby structure Note The detector active area where it is possible to make a level measurement is from the bottom of the sensor housing to approximately 76 2mm 3 from the bottom of the gauge Note In some cases the handle on the source holder operates a rotating AN shutter When installing or removing the assembly from the pipe you must turn the handle to the closed or OFF position and lock the handle with the combination lock that VEGA provides Active area 76 2 mm 3 Figure 2 2 Mounting the detector 2 4 LSGH User Manual Installation Wiring the equipment Note You may have received an interconnect drawing from VEGA or the engineering contractor If the instructions on the drawing differ from the instructions in this manual use the drawing It may contain special instructions specific to your order Use the drawing notes and the steps that follow to make the input and output connections Make the connections at the removable terminal strips mounted on the power board Access the power board by removing the explosion proof housing cap VEGA provides an internal and external ground screw for connection of the power Earth ground wire After removing the top cover the location of the internal ground screw is at the front of the housing The location of the

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