GE Masoneilan 12420 Instruction Manual & Safety Manual Download Page 26

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7.2. TRANSMITTER CONFIGURATION

Always perform or check instrument configuration before any calibration procedure. Configuration defines 12400 operating

mode, validates various features or sub-menus activation and impacts instrument internal diagnostics.

Check the following key features before initiating any calibration procedure:

♦

Measurement function: LEVEL or INTERFACE.

For special applications, it might be of interest to set the instrument in interface mode even for a level measurement. In this

case low specific gravity is set at 0.

♦

Mounting position of the instrument head versus displacer: LEFT or RIGHT.

An incorrect configuration causes calibration errors that my impact instrument operating and advanced diagnostics

capabilities.

♦

Loop current action: DIRECT or REVERSE.

This function both applies on AO_1 and AO_2 (main and second 4-20 mA output signals).

♦

See Appendixes A to G which describe operating and setting menus.

CAUTION:

In case of failsafe signal use ([FAIL LOW] or [FAIL HIGH]), check that loop current variations are in line with

process and safety rules implemented into the Distributed Control System.

Summary of Contents for Masoneilan 12420

Page 1: ...GE Oil Gas Masoneilan 12400 Series Level Transmitter Controller Instruction Manual Safety Guide GE Data classification Public ...

Page 2: ......

Page 3: ...CULAR REQUIREMENTS FOR OPERATION OF OTHER EQUIPMENT AT THE SITE THESE INSTRUCTIONS DO NOT PURPORT TO COVER ALL DETAILS OR VARIATIONS IN EQUIPMENT NOR TO PROVIDE FOR EVERY POSSIBLE CONTINGENCY TO BE MET IN CONNECTION WITH INSTALLATION OPERATION OR MAINTENANCE SHOULD FURTHER INFORMATION BE DESIRED OR SHOULD PARTICULAR PROBLEMS ARISE WHICH ARE NOT COVERED SUFFICIENTLY FOR THE CUSTOMER OPERATOR S PURP...

Page 4: ...LIBRATION WITH MECHANICAL STOPS 31 7 4 CALIBRATION OF SPECIFIC GRAVITY METER 33 7 5 MECHANICAL STOPS SETTING 34 7 6 TORQUE TUBE TEMPERATURE COMPENSATION 36 7 7 CONTROLLER FUNCTION 12410 MODEL ONLY 38 8 SAFETY MANUAL FOR SIL APPLICATIONS 44 8 1 RELEVANT STANDARDS 44 8 2 TERMS AND DEFINITIONS 44 8 3 SAFETY REQUIREMENTS 45 8 3 1 PROBABILITY OF FAILURES ON DEMAND PFD 45 8 3 2 SAFETY INTEGRITY OF THE H...

Page 5: ...very whichever occurs first provided such items are used according to all relevant recommendations and instructions from GE GE reserves the right to discontinue manufacture of any product or change product materials design or specifications without notice General This manual provides installation operation and maintenance instructions for the Masoneilan 12400 Series Digital Level Transmitter Contr...

Page 6: ...available on the AO_1 terminal is the level or interface measurement signal with HART communication Transmitter model with two 2 adjustable switches and second 4 20mA analog output The two 4 20 mA analog output signals available on the AO_1 and AO_2 terminals are the level or interface measurement signal with HART communication AO_1 only DO_1 and DO_2 terminals are two independent isolated digital...

Page 7: ...dance with the recommendations contained in the relevant standards concerning potentially explosive atmospheres b Used only in situations which comply with the certification conditions shown in this document and after verification of their compatibility with the zone of intended use and the permitted maximum ambient temperature c Installed and maintained only by personnel who have been trained and...

Page 8: ...sing is in a standard die casting alloy which is predominately aluminum The housing can be stainless steel also Before powering the 12400 1 Verify that the electronic cover screws are tightened This maintains the ingress protection level and the integrity of the flameproof enclosure 2 If the Installation is Intrinsically Safe check that the proper barriers are installed and the field wiring meets ...

Page 9: ...ation NOT pertaining to FM approval is allowed on the label SERIAL xxx WARNING POTENTIAL DANGER OF ELECTROSTATIC DISCHARGE Protection PERMANENTLY MARK PROTECTION TYPE ONCE MARKED IT CAN NOT BE CHANGED Protection Protection AO_1 40V 23mA AO_2 30V 23mA DO_1 DO_2 30V 1A Dresser Inc Masoneilan Operations DPI 14110 Conde Sur Noireau France SUPPLY CONNECTION WIRING RATED 5o C ABOVE AMBIENT HOUSING CONDU...

Page 10: ...read and O ring are greased with one of the following acceptable greases Grease Type Manufacturer GRAPHENE 702 ORAPI MOLYKOTE111 COMPOUND MOLYKOTE MULTILUB MOLYKOTE GRIPCOTT NF MOLYDAL It is the user s responsibility to check the gaskets once a year and in the event of damage to replace the defective parts with manufacturer s replacement parts only For use in dusty hazardous areas the user must ma...

Page 11: ...OID LOAD 1 to 5 Volts or 4 20mA LEVEL FEEDBACK to Control System VALVE POSITIONER 3 1 2 4 250 Ω Note 7 Note 4 Note 6 Note 7 Note 7 Note 7 Note 5 Barrier with internal or external sense resistor Barrier with 4 20 mA retransmit See Note 3 Note 5 Note 6 Barrier with internal or external sense resistor See Note 4 Barrier type See Note 5 Barrier type See Note 6 4 20 mA SETPOINT FROM CONTROL SYSTEM With...

Page 12: ...ion for example MTL 788 or 788R For controller application an active barrier with 4 20mA retransmit can be used to drive a valve positioner Entity Parameters Vmax 30 VDC Imax 125 mA Ci 2 nF Li 500 μH Pmax 900 mW Note 4 SECONDARY OUT and 4 20 mA Terminals These terminals provide an additional 4 to 20 mA signal related to the level measurement Use a transmitter type barrier with 250 Ohm series resis...

Page 13: ...d entity parameters Note 9 Use in dust atmosphere Dust tight conduit seal must be used when installed in dust hazard environments Note 10 Multiple protection approvals A device which has previously been installed without an approved IS barrier must NEVER be used subsequently in an intrinsically safe system Installing the device without a barrier can permanently damage the safety related components...

Page 14: ... switches and second 4 20mA analogue output signal AO_1 AO_2 DO_1 DO_2 2 Transmitter AO_1 3 Transmitter with adjustable switches and second 4 20mA analogue output signal AO_1 AO_2 DO_1 DO_2 0 Top and bottom Screwed BW or SW 1 Top and bottom Flanged 2 Side and side Flanged 3 Top vessel Flanged 4 Side vessel Flanged 5 Top and side Screwed BW or SW 6 Side and bottom Screwed BW or SW 7 Side and bottom...

Page 15: ...f 50 C to 80 C unless limitations due to hazardous area approvals see Section 2 NOTE Do not remove instrument cover until the unit has been installed and is ready for calibration The codes shown on numbering system indicate the instrument designation as a function of various installation modes displacer chamber connections and environmental standard or protection of the case against explosion Figu...

Page 16: ... Reach into the end of the protective case and depress the torque arm Bring the displacer hanger up through the hole in the bottom of the case and slip the displacer hanger over the torque arm pin Lower the displacer until the pin engages the top of the slot in the hanger 4 2 2 1 Guide brackets for type 12404 Figure 6 If the liquid is in motion provide brackets as shown in Figure 6 to guide the lo...

Page 17: ...the mechanical flexure 59 which is part of the beam The mechanism 50 is completely factory assembled and calibrated before being installed into the mechanism compartment The pivot 51 is positioned toward the back of the case through two pins 52 53 and fastened by two screws 113 Two set screws 114 are located in tapped holes in the side of the case The holes are covered by two plugs 115 5 3 MTBF Th...

Page 18: ...30 V 0 5 V 30 V 5 4 4 MAXIMUM POWER 3 W into 12400 case 5 4 5 OUTPUT SIGNAL AND LOAD RESISTANCE AO_1 and AO_2 Response scan time 60ms Power interruption without causing reset 100ms Power Up time 1s Compliance with NAMUR NE 43 specification standard level measurement 3 8mA to 20 5mA Low or high failsafe signals severe fault 3 6mA or 21mA Maximum load resistance For AO_1 and AO_2 R max Ω U V 10 V Im...

Page 19: ...ll rights reserved Masoneilan 12400 Series Transmitter Controller Instruction Manual 17 Figure 11 Case External side view of case Terminals for local HART communication Figure 12 Front view Cross section back view 90 or 90A 90 or 90A ...

Page 20: ...rew 1 O ring 1 251 1 Glass 62 1 CHC M3 8 screw 110 1 CHC M4 16 screw 252 1 Clamp spring 63 1 Flange lamella 111 1 O ring sensor housing 253 4 CHC M4x0 7x10 screw 270 1 Bell 112 2 CHC M3 8 screw 255 1 Cover pushbuttons 271 1 HC M3 6 screw bell 113 2 CHC M4 20 screw 256 1 Gasket cover pushbuttons 70 1 Coupling lamella S A 114 2 Adjusting screw 257 1 Screw captive panel 71 1 Coupling lamella 115 2 1 ...

Page 21: ... cover 255 on the front of the instrument The left button is marked with a star the middle button with the sign and the right one with the sign means enter the function accept or save to memory It may be understood as YES or means vertical movement in the program structure It may be understood by NO or NEXT or PREVIOUS NOTE Do not over push on the buttons Press a button at least one second to perf...

Page 22: ...nu Appendix G Clear all faults with CLEAR FAULT function Appendix G Come back to normal operating mode display in sequence of level variable and output current 6 1 4 2 SETUP Menu Appendix A SETUP menu allows to Enter BASIC SETUP menu Appendix B to set all basic configuration and calibration parameters for a quick commissioning Enter ADVANCED SETUP menu Appendix C to set all advanced configuration ...

Page 23: ... parameters 6 1 4 7 FAILSAFE Menu Appendix G This menu is available only when the instrument failed and went to FAILSAFE mode Then the output signal is locked in low or high failsafe value see Advanced Setup menu This menu allows the user to Enter SETUP menu to change any parameter Come back to normal operating mode display in sequence of level variable and output current Perform a reset of the in...

Page 24: ... plug 190 located at the bottom of the instrument b Required level of liquid for coupling b1 At workshop with weights Coupling between torque tube and mechanism is achieved by simulating a half level of a 1 4 specific gravity liquid with weights Attach to the torque arm a weight equivalent to that of a displacer half immersed in a 1 4 specific gravity liquid according to the following calculation ...

Page 25: ...e of the flexure towards the special conical ended pin 53 by bending the flexure 59 toward the case front see Figure 15 The value read on the LCD must be between 5 and 5 NOTE Check there is no oscillation of the weight used to simulate the displacer f While holding the flexure 59 in that position slightly but firmly tighten the screw 62 using a 2 5 mm Allen wrench g Bias spring arm function settin...

Page 26: ... set the instrument in interface mode even for a level measurement In this case low specific gravity is set at 0 Mounting position of the instrument head versus displacer LEFT or RIGHT An incorrect configuration causes calibration errors that my impact instrument operating and advanced diagnostics capabilities Loop current action DIRECT or REVERSE This function both applies on AO_1 and AO_2 main a...

Page 27: ...rrectly performed or may generate measurement errors The Specific Gravity of Calibration is that of the liquid used or simulated by weights for zero and span calibration in the BASIC SETUP menu Modify it only if zero and span calibration are performed again for a liquid of different specific gravity See Section 7 3 3 Specific Gravity of Service Specific Gravity of Service is unique in level servic...

Page 28: ...oop current corresponding to REF L may be set through MA LO mA via VAR SET it is generally 4mA The current corresponding to REF H may be set through MA HI mA via VAR SET it is generally 20mA The value of MA HI mA must always be higher than the value of MA LO mA The level indication corresponding to REF L is set through function LRV via VAR SET it is expressed in the unit set through UNIT function ...

Page 29: ...calibration LSG CALIB REF H corresponds to the displacer fully immersed in the liquid of Higher Specific Gravity used for calibration HSG CALIB The loop current corresponding to REF L may be set through MA LO mA via VAR SET it is generally 4mA The current corresponding to REF H may be set through MA HI mA via VAR SET it is generally 20mA The value of MA HI mA must always be higher than the value o...

Page 30: ...interface application LSG CALIB and HSG CALIB Actual volume and weight of the displacer can be read using HART communication if data have been previously saved into the 12400 instrument memory Otherwise actual volume of the displacer is marked on the firm plate and displacer weight can be measured by weighting of it c Low Level ZERO c1 Liquid application Attach to the torque arm a set of weights e...

Page 31: ...displacer weight completely immersed in the liquid of Higher Specific Gravity used for calibration HSG CALIB using the following formula d3 Enter and validate the SPAN the LEVEL value indicated on the display must equal 100 0 If not restart the procedure until very close to this value See Appendix B e Press the button when SAVE is displayed to validate the ZERO and SPAN settings Displacer Apparent...

Page 32: ...ion f Low Level ZERO f1 Liquid application Empty the displacer chamber f2 Interface application Fully immerse the displacer in the liquid of Lower Specific Gravity used for calibration LSG CALIB f3 Enter and validate the ZERO the LEVEL value indicated on the display must equal to 0 0 If not restart the procedure until very close to this value See Appendix B g High Level SPAN g1 Liquid application ...

Page 33: ...B Z S sub menu e Enter specific gravity of calibration in level application SG CALIB or the low and high specific gravities in interface application LSG CALIB and HSG CALIB f Low Level ZERO f1 Liquid application Move the flexure 59 against the adjusting screw shoulder 114 which corresponds to the low level opposite side to the displacer Wait for a few seconds until the displacer stabilizes f2 Inte...

Page 34: ...plication Move the flexure 59 against the adjusting screw shoulder 114 which corresponds to the high level of highest specific gravity fluid of calibration HSG CALIB on displacer side Wait for a few seconds until the displacer stabilizes g3 Enter and validate the SPAN the LEVEL value indicated on the display must equal 100 0 If not restart the procedure until very close to this value See Appendix ...

Page 35: ... Appendix C b Enter the Specific Gravity of Calibration of the S G Meter SG CALIB 1 0 c LOW LEVEL ZERO c1 Attach a set of weights to the torque arm equivalent to the true displacer weight i e 1362 g for a standard displacer to simulate the low level or empty the displacer chamber c2 Enter and validate the ZERO the LEVEL value indicated on the display must equal 0 0 If not restart the procedure unt...

Page 36: ...right along the surface of the screw post Figure 18 c Perform the two adjusting screws 114 setting by reading the specific gravity value indicated by the specific gravity meter through VIEW DATA menu and SPECIFIC GRAVITY METER sub menu d Enter VIEW DATA menu and SPECIFIC GRAVITY METER sub menu e LOW LEVEL REFERENCE ZERO e1 Liquid application Press the flexure 59 against the adjusting screw shoulde...

Page 37: ...djusting screw until LCD displays the value of process specific gravity SG CALIB f2 Interface application Press the flexure 59 against the adjusting screw shoulder 114 which corresponds to the highest specific gravity HSG CALIB While maintaining contact and using a 3 mm hex wrench turn the adjusting screw until LCD displays this specific gravity g Slowly move the flexure 59 from one shoulder 114 t...

Page 38: ...se of temperature difference between temperature saved during calibration procedure and current temperature impacted by ambient and process temperatures This function is available on device revision Firmware 114 or later ValVue suite software is required to set this temperature compensation feature Push buttons and any HART handheld do not enable to activate and set this feature 7 6 1 TEMPERATURE ...

Page 39: ... the Advanced Setup menu a On the Advanced Setup tab click on Database b Click on the arrow of the drop down list located at the right of the Torque Tube Matl c Select the materials related to the torque tube and housing sub assembly Inconel Carbon Steel Inconel St Steel St Steel St St Monel Carbon Steel etc In case of No Torque Tube setting Inconel Carbon Steel temperature compensation is applied...

Page 40: ...rminals is the controller output signal generated by a PID algorithm based on error between the local setpoint and the level process variable HART communication is available on AO_1 The 4 20 mA analog output signal available on the AO_2 terminals is the level or interface measurement signal No HART communication DO_1 and DO_2 terminals are two independent isolated digital switch outputs They are u...

Page 41: ...he push buttons go the Controller CTRL menu and press to enter c Activate or disable the Controller function d Leave the Advanced Setup menu to validate the new setting 7 7 3 PID CONTROLLER STRUCTURE The PID structure used is the parallel mode Two types of designs can be selected for the derivative action based on the error or on the process variable Derivative action is on the ERROR Derivative ac...

Page 42: ... Use the pulldown to select the unit for use in the program If the setpoint units do not match the level units the Ratio Control Activation automatically activates Setpoint Tracking Click to enable setpoint tracking When enabled if the controller is changed from manual mode to normal mode the setpoint is set equal to the current process variable Ratio Control Activation Automatically activated whe...

Page 43: ...l time or reset time is the time constant of integral control Higher values of I cause slower integral action Common values are 0 to 100 10 seconds A value of zero disables integral action D ms Derivative time or rate time is the time constant of derivative control expressed in milliseconds It ranges from 0 to 5000 msec A value of zero disables derivative action Kd Differential gain used in PID co...

Page 44: ...ler Bargraphs with controller output on the left bargraph and process variable and controller setpoint on the right bargraph Set Controller Setpoint in Normal mode or Controller Output in Setup mode Read Device Status Change Tag Name Set PID Parameters View activation of PID Alarms Send HART Command Change the Controller Mode This screen allows to change the 4 20mA output signal when in MANUAL mod...

Page 46: ... on Demand Safety Accuracy The measurement error that occurs due to component degradation and failure during the useful life of an instrument SFF Safe Failure Fraction summarizes the fraction of failures which leads to a safe state and the fraction of failures which will be detected by diagnostic measures and lead to a defined safety action SIF Safety Instrumented Function SIL Safety Integrity Lev...

Page 47: ...e fault tolerance of the hardware HFT for safety related type B subsystems Proportion of non dangerous failures SFF Fault tolerance of the hardware HFT 0 1 2 60 Not permitted SIL 1 SIL 2 60 90 SIL 1 SIL 2 SIL 3 90 99 SIL 2 SIL 3 SIL 4 99 SIL 3 SIL 4 SIL 4 8 4 SAFETY CHARACTERISTICS 8 4 1 ASSUMPTIONS The specified characteristics are applicable under the following assumptions that have been made du...

Page 48: ...s purposes not for safety critical operation The application program in the logic solver is constructed in such a way that Fail High and Fail Low failures are detected regardless of the effect safe or dangerous on the safety function Materials are compatible with process conditions The device is installed calibrated and maintained per manufacturer s instructions External power supply failure rates...

Page 49: ...of test Step Action 1 Bypass the safety function and take appropriate actions to avoid a false trip and any safe actions against dangerous atmospheres 2 Inspect the instrument for dirty or clogging parts adequate wiring correct mounting of end connections and other physical damage 3 Examine the torque tube and the displacer to detect corrosion or leaks replace if necessary 4 Observe the tightening...

Page 50: ...S TORQUE TUBE a Mount the torque tube 137 on a support The knife pivot at the back of the tube must be oriented toward the top b On the transmission rod 138 mount the bias assembly 241 c On the transmission rod 138 mount the coupling S A 75 including flange 116 coupling flexure S A 70 incl flexure 71 pin 72 and washer 73 flange 117 and its two loosened screws 118 see figure 19 d Attach a weight to...

Page 51: ... the beam is free to rotate by placing your finger on the flexure 59 through the lower 3 4 NPT hole k Fasten the case with four screws 121 and washers 122 Firmly tighten l Verify again that the beam is free to rotate and that the coupling flexure 71 is not deformed The coupling on the beam 54 is tightened later NOTE At this point if instrument service conditions are well defined refer to Section 7...

Page 52: ... sure that requirements for instruments installed in explosive areas are strictly followed Remove screw 106 from connection compartment and unscrew cover 104 Disconnect supply electrical wires and other equipment from terminals 90 h Remove nuts 142 holding the torque tube subassembly and slide the subassembly out of the mechanism chamber PART REFERENCE 130 Displacer 143 Gasket 131 Displacer chambe...

Page 53: ...erformed see figure 22 NOTE If the coupling does not match the mounting direction verify that the screw 62 is loose and pin 72 is free to rotate in the coupling end of the beam 54 before hooking the displacer on the torque arm 135 Continue by performing operations g to i in Section 9 5 unless the instrument is already prepared and calibrated for the specific application required by the customer In...

Page 54: ...d 7 5 Proceed with calibration following Section 7 3 NOTE The specific gravity meter function and the adjusting screws are features offered by the instrument They enable a user to perform simulations that ease calibration in situations such as no liquid in low level when special interface displacers are used and for calibration with or without liquid in case of a level interface application using ...

Page 55: ...ly voltage is applied to terminal blocks of main analog output connections AO_1 10 4 OUTPUT SIGNAL DIFFERS FROM VALUE DISPLAYED ON LCD Check the load resistance is compliant with Section 5 4 5 and the power supply applied to main analog output signal is greater than 10 VDC Insert a reference milliamp meter in series with the 4 20 mA signal loop To recalibrate the internal milliamp meter enter the ...

Page 56: ...essage is indicated on LCD display when the user presses a button e Check the wiring capacitance versus length see note Note these data are given in the HART FSK physical layer specifications 10 6 OUTPUT SIGNAL DOES NOT MATCH WITH THE LIQUID LEVEL LINEARITY ISSUE a Check the calibration parameters in particular MA LOW mA MA HI mA Z SHIFT and R SPAN b Check the potential faults displayed into the V...

Page 57: ...e than the configured time Check you complete level loop LOW LEVEL ALARM 2 Level was below the configured threshold for more than configured time Low level measure for more than the configured time Check you complete level loop HIGH LEVEL ALARM 1 Level was above the configured threshold for more than configured time High level measure for more than the configured time Check you complete level loop...

Page 58: ...ng the non volatile memory Clear the condition using ValVue software or HART host NVM SENSOR TEST Non Volatile Memory error of sensor circuit board if both a FRAM record and its copy have CRC errors A problem occurred when testing the non volatile memory Clear the condition using ValVue software or HART host RAM CHECKSUM ERROR RAM checksum error A corruption of the content in non volatile memory o...

Page 59: ...RRENT SIGNAL SENSOR Error of 4 20 mA sensor Readback sensor reading was outside the 1 to 30 mA range for five reads in a row Clear the condition using ValVue software or HART host If the failure persists replace the device LOOP OUTPUT WARNING Small mismatch between commanded and read 4 20 mA loop output lower than 0 32 mA Resistance change of external loop may have changed Clear the condition usin...

Page 60: ...haracteristics Redo calibration SG LEVEL MAX Absolute value of Specific Gravity recalculated range is too small Specific Gravity value s is are incorrect Check Specific Gravity data SENSOR SUPPLY VOLTAGE Sensor supply voltage was outside sensor specification Lack of supply power or circuit board component failure Clear the condition using ValVue software or HART host Check supply power If the fail...

Page 62: ... SETUP Menu To ADV SETUP Menu Annex F Annex B Annex C VIEW DATA To VIEW ERR Menu Annex G RESET Lock Lock Lock To FAILSAFE Menu If any critical default remains Annex G CTRL mA LEVEL NORMAL CTRL SP VIEW ERR CLR ERR BAS SETUP ADV SETUP NORMAL VIEW ERR CLR ERR NORMAL MENU NORMAL MODE SETUP MENU SETUP MODE VIEW DATA To VIEW DATA Menu ALTERNATING DISPLAY 113 DLT12400 NORMAL MODE AUTOMATIC POWER ON To BA...

Page 63: ...etup Menu NORMAL Validate by pressing the to return to Normal Menu In Normal Mode the screen displays in sequence the value of the level and of the output current VIEW DATA Validate by pressing the to enter the View Data Menu VIEW ERRORS Validate by pressing the to read eventual error indication s since last clear of errors CLEAR ERRORS Validate by pressing the to clear error message s saved in me...

Page 65: ...in the instrument memory CANCEL Validate by pressing the to cancel the parameters saving procedure COUPLING Only necessary on instrument head delivered alone without torque tube Function used to mechanically couple the sensor to the torque tube rod Requires simulating a displacer half immersed in a liquid of S G 1 4 The value read must be between 5 and 5 See Section 7 1 ENGLISH FRENCH SPANISH PORT...

Page 66: ...m the Specific Gravity of Calibration SPECIFIC GRAVITY of SERVICE Validate by pressing the to set the Specific Gravity of the liquid of service if it is different from the Specific Gravity of Calibration Settable value ranges from 0 001 to 10 LOW SPECIFIC GRAVITY of SERVICE Used in case of an interface instrument Validate by pressing the to set the Specific Gravity of the lighter liquid used in se...

Page 69: ...el position REF H The value generally 20 mA must be between the low current signal value MA LOW and 20 5 mA ENGINEERING UNIT Validate by pressing the to enter the sub menu to define the level variable and select the desired engineering unit usually ZERO SHIFT Validate by pressing the to set the zero of a reduced range In case of an interface instrument when the Specific Gravities of Service LSG SE...

Page 70: ...IFIC GRAVITY METER CALIBRATION Validate by pressing the to calibrate the Specific Gravity Meter Enter the sub menu and proceed as a normal level calibration SPECIFIC GRAVITY for CALIBRATION Validate by pressing the to set the specific gravity of the liquid used during the calibration procedure Settable value ranges from 0 001 to 10 ZERO When displayed empty the tank or simulate so that displacer i...

Page 73: ...m LOWER REFERENCE VALUE to 9999 9 SAVE Validate by pressing the to start the saving procedure of parameters previously entered in the instrument memory BACK Return to previous menu SCREEN DESCRIPTION FOR FILTERING MENU FILTERING Validate by pressing the to check the Filtering data DAMPING Validate by pressing the to check the Damping data DAMPING ON Indicates first order Filtering function is acti...

Page 75: ...ue level measurement AO_1 GENERATOR Validate by pressing the to enter the sub menu allowing to set the Analog Output 1 loop current to a defined value SIGNAL mA Validate by pressing the to set the AO_1 loop current to a value between 3 6 and 23 mA SAVE Validate by pressing the to save the data BACK Return to previous menu AO_2 GENERATOR Validate by pressing the to enter the sub menu allowing to se...

Page 76: ...menu BA SETUP AD SETUP DIAGNOS SG METER 111 DLT REV BACK READ CTR RESET CTR SENS TEMP MODL TEMP BACK NBR FILL TIME LOW TIME HIGH TIME WORK BACK MA HI mA Z SHIFT R SPAN FILTERING SGM CALIB MA LOW mA BACK VIEW DATA To BA SETUP menu Annex B SG METER ERROR or YES NO Annex D Lock SIL 2 NON SIL CTRL ON ou OFF ...

Page 77: ...ument worked within 5 of low level calibrated value TIME HIGH Time number of hours during which the instrument worked within 5 of high level that is between 95 and 105 of calibrated value TIME WORKING Time number of hours during which the instrument has been on service BACK Return to previous menu RESET COUNTER Validate by pressing the to reset the diagnostic data to zero in memory SENSOR TEMPERAT...

Page 79: ...idate by pressing the to clear error message s saved in memory SCREEN DESCRIPTION FOR VIEW ERROR MENU NO ERROR Indicates there is no error in memory RESET Validate by pressing the to put the instrument in factory set configuration Another Fault Indicates eventual other error BACK Return to previous menu Note on pushbuttons lock Access to main functions can be locked upon the position of the hardwa...

Page 80: ...tered trademarks or trademarks of their respective owners General Electric Company All rights reserved Visit your web site www fr eps com E P S FRANCE 24 bis rue de Picpus 75012 PARIS Tel 33 0 9 83 01 21 01 ventes fr eps com E P S CAMEROON Immeuble Carré d Or Rue Njo Njo Bonapriso DOUALA Tel 237 6 52 12 70 95 ventes fr eps com ...

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Summary of Contents for Masoneilan 12420

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GE Masoneilan 12420, Instruction Manual & Safety Manual, Page: 26 / 80

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Summary of Contents for Masoneilan 12420

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