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LXT-380 Universal Transmitter

Introduction

Teledyne Analytical Instruments

1

1.0 Introduction

The Teledyne Model LXT-380 transmitter is a single or dual

channel, intelligent, multiparameter transmitter designed for the online
continuous measurement of pH, ORP, pION, dissolved oxygen,
conductivity, resistivity and in a hazardous industrial environment. The
Model LXT-380 transmitter communicates digitally with any Teledyne
SP3X digital sensor, automatically configuring the transmitter’s menus
and display screens to the measured parameter.

The Model LXT-380 transmitter can be loop powered or 24 VDC

powered. The standard configuration has a 4-20 mA output and a RS485
serial communication port with MODBUS

®

RTU output. A HART

®

communication version (single channel version only) is also available.
Alarm relays are optionally available on any 24 VDC powered
transmitter.

1.1 MODEL LXT-380 TRANSMITTER

IECEx: ETL 17.0030X
ATEX: ITS17ATEX101945X

1180

II 2 G Ex db mb [ia IIC Ga] IIC T4 Gb

This Model LXT-380 Transmitter is intended for installation in

hazardous locations with Zone 1, Ex db mb Gb classification. Ambient
temperature conditions must be within -20°C ≤ T

a

≤ +55°C to comply

with product approval.

Power connections into the transmitter must be made with flame-

proof conduit and cable glands certified for hazardous locations and
compatible with Ex db mb Gb certified equipment.

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Содержание LXT-380

Страница 1: ...mponents internally which may persist for a time even after the power is turned off and disconnected Only authorized personnel should conduct maintenance and or servicing Before conducting any mainten...

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Страница 3: ...db mb ia IIC Ga IIC T4 Gb Main Enclosure 20 C Ta 55 C Ex ia IIC T4 Ga Sensor Assembly 20 C Ta 85 C MODEL NUMBER LXT380 FCA380 CDA380 I THE UNDERSIGNED HEREBY DECLARE THAT THE EQUIPMENT SPECIFIED ABOVE...

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Страница 7: ...hape or weight of any parts in so far as such alterations do not adversely affect our warranty Important Notice This instrument provides measurement readings to its user and serves as a tool by which...

Страница 8: ...iversal Transmitter Teledyne Analytical Instruments iii Specific Model Information Instrument Serial Number _______________________ Sample Gas 1 _______________ Zero Gas _______________ Span Gas _____...

Страница 9: ...ic procedures which if not followed could cause bodily Injury and or damage the instrument CAUTION HOT SURFACE WARNING This warning is specific to heated components within the instrument Failure to he...

Страница 10: ...d maintenance of your new analyzer Please read this manual and keep it available Occasionally some instruments are customized for a particular application or features and or options added per customer...

Страница 11: ...NG PLUG 9310062 3 1 4 SP3X SENSOR 3 1 5 FEATURES 4 1 6 SPECIFICATIONS 5 1 6 1 INPUT SPECIFICATION 5 1 6 2 INPUT RANGES 5 1 6 3 ACCURACY 5 1 6 4 OUTPUT SIGNALS 5 1 6 5 CONTACT RELAYS 6 1 6 6 DISPLAY 6...

Страница 12: ...1 HOLD OUTPUT HOLD 21 3 2 2 CAL CALIBRATION MENU 21 3 2 3 CONFIG CONFIGURATION MENU 22 3 2 4 INFO INFORMATION MENU 25 3 2 5 SIM SIMULATION MENU 26 3 2 6 FAULT SCREENS 27 3 2 7 SENTINEL SCREENS 27 3 3...

Страница 13: ...NDARDIZE 41 4 3 PION CALIBRATION PROCEDURES 42 4 3 1 AUTO CAL USING 1 10 100 PPM SOLUTIONS4 3 2 42 4 3 2 AUTO CAL USING NON DECIMAL PPM SOLUTIONS 42 4 3 3 STANDARDIZE 43 4 4 SP3X DISSOLVED OXYGEN CALI...

Страница 14: ...ELECTRODE CARTRIDGE CLEANING 62 8 3 5 ORP ELECTRODE CARTRIDGE CLEANING 62 8 3 6 PION ELECTRODE CARTRIDGE CLEANING 63 8 3 7 DISSOLVED OXYGEN CARTRIDGES 64 8 3 8 CONDUCTIVITY AND RESISTIVITY SENSORS 65...

Страница 15: ...Transmitter Teledyne Analytical Instruments x Appendix 71 A Auto Cal Buffer Tables 71 B LXT 380 Hart Menu 72 C MODBUS RTU REGISTER LISTING 74 D RESISTIVITY TEMPERATURE COMPENSATION 81 E Drawings 82 F...

Страница 16: ...s xi List of Figures Figure 2 1 Dimensions SS Housing 10 Figure 2 2 LXT 380 Transmitter Wiring Terminals 11 Figure 2 3 B80 Barrier Wiring 13 Figure 2 4 SP3X Sensor Connector Wiring 14 Figure 2 5 Wirin...

Страница 17: ...LXT 380 Universal Transmitter Teledyne Analytical Instruments xii List of Tables Table 1 Saturation Index 44 Table 2 Altitude Correction 45...

Страница 18: ...ways exist The customer should ensure that the principles of operating this equipment are well understood by the user Misuse of this product in any manner tampering with its components or unauthorized...

Страница 19: ...LXT 380 Universal Transmitter Teledyne Analytical Instruments xiv Blank Page...

Страница 20: ...d or 24 VDC powered The standard configuration has a 4 20 mA output and a RS485 serial communication port with MODBUS RTU output A HART communication version single channel version only is also availa...

Страница 21: ...19 is intended for installation in hazardous locations with Zone 1 Ex d Gb classification The barrier is installed into the LXT 380 flame proof housing and performs two important functions First the b...

Страница 22: ...stallation in hazardous locations with Zone 1 Ex d Gb classification The plug is factory installed into the LXT 380 flame proof housing to maintain the flame proof integrity for unused wiring ports in...

Страница 23: ...ent in hazardous locations Refer to Control Drawing T1700004 for specific installaton requirements See Appendix Do not install any equipment approved for non hazardous locations in a hazardous area Su...

Страница 24: ...ved Oxygen 000 1 999 9 Auto Ranging ppb 20 00 ppm SAT mg L Conductivity 0 000 2 000 Auto Ranging S mS S TDS 0 00 9999 ppm Resistivity 0 00 50 00 MO Temperature 100 K ohm TC 20 C 85 C 1 6 3 ACCURACY pH...

Страница 25: ...VDC powered instruments English numeric and graphical displays 1 6 7 ENCLOSURE Explosion Proof Certified FM CSA ATEX and IECEx Materials Electro Polished 316 SS Mounting 2 x M4 3 16 and 3 x FNPT 1 6 8...

Страница 26: ...r pH ORP pION DO Conductivity Resistivity Power Supply 0 Loop Powered Transmitter 1 24 VDC Powered Transmitter Relay Option 0 No Relays 1 3 for 1C 250 V 3A Relays Outputs 0 4 20 mA output and Modbus 1...

Страница 27: ...Introduction LXT 380 Universal Transmitter Teledyne Analytical Instruments 8 1 8 APPROVALS 1 8 1 ENCLOSURE...

Страница 28: ...access to the analyzer and sensors Install the system in an area where vibrations electromagnetic and radio frequency interference are minimized or absent Do not mount in direct sunlight or areas of e...

Страница 29: ...ication Examples of unauthorized repairs include flame path alteration or modification of flame proof components Omission of components including but not limited to flame proof conduit flame proof sea...

Страница 30: ...XT 380 Transmitter Wiring Terminals WARNING RISK OF ELECTRICAL SHOCK DISCONNECT POWER BEFORE OPENING INSTRUMENT WARNING ELECTRICAL INSTALLATION MUST BE IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE...

Страница 31: ...wire configuration Attach the 24VDC power cable to terminals 1 and 2 as shown in Figure 2 2 and on the diagram inside of the LXT 380 cover Attach the 4 20 mA1 cable to terminals 3 out and 2 return si...

Страница 32: ...ytical Instruments 13 ground lug provided inside the LXT 380 housing If the installation is a single channel unit remember to install the sealing plug supplied and tighten to 55nM 41ft lbs to maintain...

Страница 33: ...g Strip wire insulation as indicated below and slide into Housing Gently tighten the Backshell to the Housing to fix the cable Insert the individual wire conductors into the location identified White...

Страница 34: ...nnect the 4 20 mA cable s to terminals 3 out for channel 1 and 2 return and to terminals 4 out for channel 2 and 2 return Transmitters with HART Communication can be wired as shown below See HART Comm...

Страница 35: ...ODBUS RTU Attach the sensor wires as shown in Figure 2 2 or as described on the diagram inside the LXT 380 cover Feed the sensor cable through the gland fitting on the left hand side of the LXT 380 Do...

Страница 36: ...lay screens to the measured parameter 3 1 MAGNETIC KEYS The keys on the Model LXT 380 transmitter are magnetic Hall Effect switches Use the magnetic end of the supplied instrument screw driver to actu...

Страница 37: ...ts and temperature Only one of the three graphical display styles is available through the HOME key either the Bar Gauge or Line display Choose which style will be displayed in the Graph Menu pathway...

Страница 38: ...L and PASSWORD Caps and Numbers only Menus allow alphanumeric entry Entry is accomplished by scrolling through the alphanumeric list with the forward and backwards arrows to the character of choice an...

Страница 39: ...Operation LXT 380 Universal Transmitter Teledyne Analytical Instruments 20 Figure 3 1 LXT 380 Screen Map...

Страница 40: ...ON until it is turned OFF See Time Out in CONFIG XMTR OUTPUT HOLD 3 2 2 CAL CALIBRATION MENU Four options are available AUTO STAND MANUAL and TEMP On dual channel instruments choose Sensor 1 or Sensor...

Страница 41: ...to agree with a laboratory determined grab sample reading MANUAL is a data entry screen Manual calibration allows the user to enter a concentration with the corresponding mV value and a slope for an...

Страница 42: ...100 of 4 20 mA range LABELS TAG Enter up to 2 lines x 16 characters example Name tag Displayed in INFO screen TAG ON Turn TAG ON OFF adds TAG to Main Display Sequence DATA mV GRAF TAG DATA POP UP Tur...

Страница 43: ...the HOME screen display HOLD Freezes outputs at current value and locks relays in their current state Hold Timeout Removes HOLD after a certain period of time default setting No Timeout selections in...

Страница 44: ...o a pION electrode Select Sensor Type pH ORP DO2 NH3 NH4 Br Ca Cl Conductivity Resistivity Cu CN F NO3 K Ag Na S T COMP Enter temperature compensation per degree pH pION 0 33 ORP 0 00 DO2 4 Conductivi...

Страница 45: ...t or Output signals to be simulated SYSTEM allows the input to be simulated Two choices are available FIXED is a fixed value RAMP varies the signal across the 4 20 mA range from the lowest value to th...

Страница 46: ...the reference electrode A filled gauge indicates a properly functioning measurement while the emptying gauge indicates the remaining life of the electrode This Pre pHault diagnostic alerts the user t...

Страница 47: ...SENTINEL Voltage offset The diagnostic voltage of a new electrode Ve SENTINEL expiration Voltage Vo Range RANGE The shift in the diagnostic voltage required to trigger diagnostic fault The default val...

Страница 48: ...CONFIG XMTR OUTPUT 4 20 1 2 PV or TEMP Press CHANGE to enter New Values Choose 4 mA value press OK Enter value using or and NEXT to move to the next digit press OK Back Choose 20 mA value press OK Ent...

Страница 49: ...sensor Delay ON The amount of time the PV must remain above below the set point before the relay activates SET POINT OFF The Value of the process variable that deactivates the relay SET POINT OFF Set...

Страница 50: ...n Press OK Choose time from drop down menu using or press OK press BACK Choose Delay ON Press OK Enter value using or and NEXT to move to the next digit press OK press BACK Choose OFF Set Point Press...

Страница 51: ...calibrated at the factory before shipment no calibration should be necessary before use Allow the sensor to equilibrate to the process solution conditions for hour before verifying the reading agains...

Страница 52: ...SMITTER NAME Two 16 character lines are available for naming the transmitter Upper and Lower case characters Numbers and Punctuation are available The information entered will be displayed in the INFO...

Страница 53: ...o speed auto scrolling Press BACK to exit the screen Location CONFIG XMTR LCD LABELS SENSOR 3 4 5 PASSWORD PROTECTION PASSWD Enter a 4 character password to protect access to MENU Level CAL Menu CONFI...

Страница 54: ...Analytical Instruments 35 MENU ON OFF Locks Main Menu CAL ON OFF Locks CAL and CONFIG CONFIG ON OFF Locks CONFIG SIM ON OFF Locks SIM and CONFIG In the case of a Lost or Forgotten password enter MSTR...

Страница 55: ...Operation LXT 380 Universal Transmitter Teledyne Analytical Instruments 36 Blank Page...

Страница 56: ...point or offset value of the sensor The second calibration sets the slope or span of the sensor When the AUTO key is pressed the transmitter displays the PV Process Variable and the associated mV sig...

Страница 57: ...ss OK The user is then prompted to accept the value yes no and the calibration is complete Standardizations are single point calibrations At the end of each calibration the Offset and Slope are displa...

Страница 58: ...The Calibration is complete the Offset and Slope values are displayed press OK to exit 4 1 pH CALIBRATION PROCEDURES AUTO Calibration recognizes pH 4 01 pH 7 00 and pH 10 00 buffer solutions for autom...

Страница 59: ...Teledyne Analytical Instruments 40 4 1 2 AUTO CAL USING OTHER PH BUFFERS 4 1 3 STANDARDIZE Leave the sensor in the process solution take a grab sample from the process and determine the pH or place s...

Страница 60: ...solution 90 mV and pH 4 01 quinhydrone solution 267 mV for automatic ORP calibrations Any calibration solutions can be used but the ORP value will have to be entered manually Follow the steps below t...

Страница 61: ...UTO Calibration recognizes 1 10 or 100 ppm ppb calibration solutions Any calibration solutions can be used but the ppm value will have to be entered manually Follow the steps below to accomplish a pIO...

Страница 62: ...ue below 1 mV The sensor will take a few minutes to equilibrate to the zero oxygen solution but for the highest accuracy it is best to wait 15 20 minutes before initiating a calibration The typical se...

Страница 63: ...itude correction K from Table 2 and the current air pressure in bar P 1 bar equals 14 7 psi Use 1 bar if the actual air pressure is unknown C S x K x P Example Temperature 20 C Saturation 9 08 mg L Al...

Страница 64: ...zes air for zero point Cal 1 and 50 S 100 S 500 S 1mS 5mS 10mS 50mS and 100mS solutions for the span Cal 2 Any calibration solutions can be used but the conductivity value will have to be entered manu...

Страница 65: ...nductivity in S x correlation factor ppm Conductivity is a measurement of a solution s electrolytic conductivity 1 ohms The type of dissolved ions in the solution is irrelevant to the measurement TDS...

Страница 66: ...into the CONFIG SENSOR TDS menu or by standardizing the sensor in a solution of known TDS in the CAL STAND menu by entering the TDS value Since the correlation of conductivity to concentration is not...

Страница 67: ...Analytical Instruments 48 4 7 1 AUTO CAL USING AIR AND MEG OHM PROCESS WATER 4 7 2 STANDARDIZE With the sensor in the process solution take a grab sample from the process and determine the conductivi...

Страница 68: ...ter requires no periodic maintenance except to make sure the front window is kept clean in order to permit a clear view of the display and allow proper operation of the navigation buttons If the windo...

Страница 69: ...Maintenance LXT 380 Universal Transmitter Teledyne Analytical Instruments 50 Blank Page...

Страница 70: ...LXT 380 Universal Transmitter Troubleshooting Teledyne Analytical Instruments 51 6 0 TROUBLESHOOTING...

Страница 71: ...Troubleshooting LXT 380 Universal Transmitter Teledyne Analytical Instruments 52 Blank Page...

Страница 72: ...LXT 380 Universal Transmitter Parts and Accessories Teledyne Analytical Instruments 53 7 0 PARTS AND ACCESSORIES 7 1 REPLACEMENT PARTS...

Страница 73: ...Parts and Accessories LXT 380 Universal Transmitter Teledyne Analytical Instruments 54 Blank Page...

Страница 74: ...tself into a calibrated pH transmitter The internal components of the SP3X sensors the signal conditioner temperature sensor and cable assembly are epoxy encapsulated inside the O D housing Epoxy enca...

Страница 75: ...nsertion configuration can be used as a flow through mounting by inserting the SP3X sensor into a pipe tee Teledyne has various flow cells available for convenience The flow cells are 2 0 diameter by...

Страница 76: ...ly slowly as this compression fitting is holding the sensor in place CAUTION the sensor may snap back quickly if it is under pressure do not remove the nut from the body of the fitting 2 Slide the sen...

Страница 77: ...nge and by mounting the gland fitting or valve retraction assembly to the flange 8 2 SP3X PART NUMBER CONFIGURATOR SP3X sensors are available in five measurement types 0 a millivolt style for pH ORP a...

Страница 78: ...LXT 380 Universal Transmitter SP3X Sensors Teledyne Analytical Instruments 59...

Страница 79: ...pendent on the process conditions it is exposed to a pH electrode may last a year or longer in potable water and only a few weeks in a hot caustic bath The chemical constituents in the process may coa...

Страница 80: ...se the electrode tip in tap water and wipe the electrode body dry then lubricate the o ring seals with the included lubricant Save the protective soaker boot in the event the electrode must be stored...

Страница 81: ...of detergent and water or with methyl alcohol If the electrode response is not improved soak the electrode in 0 1 molar HCl for 5 minutes Remove and rinse the electrode with tap water and soak in 0 1...

Страница 82: ...omise the measurement Cleaning should be followed by polishing before calibrating the sensor The PVC membrane sensors Ca K NH4 NO3 are fragile membranes and should be cleaned using a soft artist style...

Страница 83: ...to wet the polishing surface b Hold the electrode with the sensing surface facing up c Slide the polishing strip back and forth across the electrode tip the sensing tip will be abraded and a new elect...

Страница 84: ...ith alcohol methanol ethanol or isopropyl will work fine Soak for 5 minutes in a dilute nitric acid solution a 3 5 solution is made by a 20 1 dilution of concentrated Nitric Acid 5 ml HNO3 in 100ml of...

Страница 85: ...lon ferrule 100 1 Teflon glands fitting for PVDF housing only VSS 1 316 SS valve retraction assembly VKY 1 PVDF valve retraction assembly Shipping Weight SP3X 2 5 lbs 1 2 kg SP3X with VSS 5 8 lbs 2 65...

Страница 86: ...2005083 2005383 SENTINEL ISE sensor PVC membrane Construction Radel PES body Reference Electrode double porous Teflon junction Measurement range 0 05 18 000 ppm pH Range 2 10 pH Temperature Range 0 40...

Страница 87: ...easurement range 2 35 000 ppm pH Range 2 12 pH Temperature Range 0 80 C Pressure Range 150 psig 8 4 8 CUPRIC ELECTRODE Part 2005058 2005358 SENTINEL ISE sensor solid state CuS membrane Construction Ra...

Страница 88: ...Electrode double porous Teflon junction Measurement range 0 1 40 000 ppm pH Range 2 12 pH Temperature Range 0 40 C Pressure Range 50 psig 8 4 12 SILVER ELECTRODE Part 2005016 2005316 SENTINEL ISE sen...

Страница 89: ...0 80 C Pressure Range 150 psig 8 4 14 SULFIDE ELECTRODE Part 2005122 2005322 SENTINEL ISE sensor solid state AgS membrane Construction PEEK body Reference Electrode double porous Teflon junction Measu...

Страница 90: ...LXT 380 Universal Transmitter Appendix Teledyne Analytical Instruments 71 Appendix A Auto Cal Buffer Tables...

Страница 91: ...Appendix LXT 380 Universal Transmitter Teledyne Analytical Instruments 72 B LXT 380 Hart Menu...

Страница 92: ...LXT 380 Universal Transmitter Appendix Teledyne Analytical Instruments 73...

Страница 93: ...est Protocol Data Unit specifies the starting register address and the number of registers In the Protocol Data Unit Registers are addressed starting at zero Therefore registers numbered 1 16 are addr...

Страница 94: ...ed to write a single holding register in a remote device The Request Protocol Data Unit specifies the address of the register to be written Registers are addressed starting at zero Therefore register...

Страница 95: ...Appendix LXT 380 Universal Transmitter Teledyne Analytical Instruments 76 REGISTERS Per the Modbus Application Protocol Specification V1 1b...

Страница 96: ...LXT 380 Universal Transmitter Appendix Teledyne Analytical Instruments 77...

Страница 97: ...Appendix LXT 380 Universal Transmitter Teledyne Analytical Instruments 78...

Страница 98: ...LXT 380 Universal Transmitter Appendix Teledyne Analytical Instruments 79 Fault Status WARNING STATUS...

Страница 99: ...Appendix LXT 380 Universal Transmitter Teledyne Analytical Instruments 80 Sensor Type...

Страница 100: ...e The graph below shows the change per C for 18 2 M water For the range of 20 40 C the mean value is 5 per C this is the default value set in the Model LXT 380 The temperature coefficient of 10 M wate...

Страница 101: ...Appendix LXT 380 Universal Transmitter Teledyne Analytical Instruments 82 E Drawings...

Страница 102: ...LXT 380 Universal Transmitter Appendix Teledyne Analytical Instruments 83...

Страница 103: ...Appendix LXT 380 Universal Transmitter Teledyne Analytical Instruments 84...

Страница 104: ...tical Instruments 16830 Chestnut Street City of Industry CA 91748 Telephone 626 934 1500 Fax 626 961 2538 Web www teledyne ai com or your local representative email ask_tai teledyne com IMPORTANT Orde...

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