User`s Manual
Contents
1. FM 3615 UL 1203 UL 50 UL 50E C22 2 No 94 C22 2 No 94 2 Explosionproof for Class l Division 1 Groups A B C and D Dust ignitionproof for Class II III Division 1 Groups E F and G Enclosure TVPE 4X Temp Code T5 Ex d IIC T5 Enclosure IP66 and IP67 Amb Temp 40 to 85 C 40 to 185 F for T5 Applicable Standard C22 2 No 0 FM 3600 FM 3610 FMRC 3611 UL 60079 0 UL 60079 11 C22 2 No 60079 0 CAN CSA E60079 11 C22 2 No 213 CAN CSA C22 2 No 157 Intrinsically Safe for Class Division 1 Groups A B C 8 D Class II Division 1 Groups E F 8 G Class III Division 1 Non incendive for Class I Division 2 Groups A B C 8 D Class Il Division 2 Groups E F amp G Class III Division 1 Enclosure Type 4X Temp Code T5 Amb Temp 40 to 85 C 40 to 185 F Electrical Parameters Intrinsically Safe Vmax 30V Imax 200mA Pmax 0 9W Ci 10nF Li 0 Non incendive Vmax 30V Ci 10nF Li 0 For CSA E60079 Ex ia IIC T5 Ex ic IIC T5 Enclosure IP66 and IP67 Amb Temp 40 to 85 C 40 to 185 F Electrical Parameters Ex ia Ui 30V li 200mA Pi 0 9W Ci 10nF Li 0 Ex ic Ui 30V Ci 10nF Li 0 CUI IECEx Scheme IEC Intrinsically Safe IEC Flameproof Approval Pending Intrinsically safe and type n Applicable Standard IEC 60079 0 IEC 60079 1 IEC 60079 11 IEC 60079 26 IEC 60079 31 Il 1G 1D Ex ia IIC T5 II 3G Ex ic IIC T5 Degree of protection IP66 and IP67 Amb Temp 40 to 85C 40 to 185F Electrical Parame2. Use to select units from a common set of units 4 Custom Allows a custom unit to be specified Touch Enter to select alphabetical or Next to select another desired method In this example we will use Common units f Touch to displav the Units of Measure routine IM 60A02S01 01E A Page 21 0f 28 The alphanumeric display reads Units of Measure g Touch to display the Common units routine The alphanumeric display reads Common units h Touch to select the Common units routine 1 Touch to scroll forward through the units or to scroll backwards j When the desired unit is shown in this case m h touch Enter to select the unit The alphanumeric display shows Eng units 0 value The numeric display shows the current engineering unit zero value with the least significant digit blinking At this point the menu buttons are redefined as in Table 5 2 Table 5 2 MLX key functions when in Engineering units mode Key Function Selects the digit to modify digits advance from least significant to most Last significant to the sign symbol and back to least significant 6 digits plus sign Increments the selected digit values roll over from 9 to 0 Decrements the selected digit values roll over from 0 to 9 Accepts the modified value as the current engineering unit zero or full scale FS value k Touch Next to increment the least significant digit to the desired
3. 3 Return Calibrate 1 Start Cal 2 Return Eng Units Set Units Eng unit O value Eng unit FS value Return Response 1 Linear 2 Sqrt 3 3 2 4 5 2 5 Custom 6 Return Indicators x10 VLONADARADN N gt P SP T LF 10 Sqrt 11 Return Dec places Real time 1 Start Real 2 Return Simulated 1 Start Simulated 2 Return Set Units 1 Common 2 Alphabetical 3 Clear Units 4 Return Zero value 1 Zero unit value 2 Return FS value 1 FS unit value 2 Return Speed 1 Fast scroll 2 Medium scroll 3 Slow scroll 4 Return Page 16 of 28 Common 1 bar barg degC degF inH20 kg h KNm3 h m 10 m3 h 11 Nm3 h 12 t h 13 Return Alphabetical IM 60A02S01 01E A MLX Menu Tree cont Bar From Indicators x10 x100 x100 on x100 off Return x1000 x1000 on x1000 off Return on Off Return SP on SP off Return Page 17 of 28 IM 60A02S01 01E A MLX Menu Tree cont C CH4 CO C02 CP H2 H20 LEL N2 O2 R H RF RH RV VH 1 min 1 s A ABS at ata atg atm BACARA bar BARA barabs bare bareG barG bbl d bbl h bbl min bbl s bbl b d bbl b h bbl b min bbl b p bbl b s bbl o d bbl o h bbl o min bbl o p bbl o s Bq cm2 Bq cm3 List of a
4. Division 1 Class I Zone 2 Group IIC in Hazardous Locations Enclosure NEMA 4X Temp Class T5 Amb Temp 40 to 85 C 40 to 185 F Intrinsically Safe Apparatus Parameters Groups A B C D E F and G Vmax 30 V Imax 200 mA Pmax 0 9 W Ci 6 nF Li 0 _H Groups C D E F and G Vmax 30 V Imax 200 mA Pmax 0 9 W Ci 10 nF Li 0 mH FU1 CENELEC ATEX ATEX Intrinsicallv Safe ATEX Flameproof Non incendive Approval Pending Flameproof Applicable Standard EN 60079 0 EN 60079 1 EN 60079 31 112G 2D Ex d IIC T5 Ex tD A21 IP6X T85 Degree of protection IP66 and IP67 Temperature class T5 Ambient Temperature 40 to 85 C 40 to 185 F Intrinsically safe Applicable Standard EN 60079 0 EN 60079 11 EN 60079 26 111G 1D Ex ia IIC T5 Degree of protection IP66 and IP67 Temperature class T5 Ambient Temperature 40 to 85 C 40 to 185 F Entity parameters Ui 30 V li 200 mA Pi 0 9 W Ci 10 nF Li 0 mH Non incendive Applicable Standard EN 60079 0 EN 60079 11 11 3G Ex ic IIC T5 Temperature class T5 Ambient Temperature 40 to 85 C 40 to 185 F Entity parameters Ui 30 V li 200 mA Pi 0 9 W Ci 10 nF Li 0 mH KU21 IM 60A02S01 01E A Page 26 of 28 Item Description Code Association CSA Association CSA Canadian Standards Canadian Standards CSA Intrinsically Safe CSA Explosionproof Approval Pending Applicable C22 2 No 25 C22 2 No 30 Standard FM 3600
5. Products ordered with the ENG Engineering Units option other than 0 100 use 0 100 as the basis for the desired engineering units Use the procedure below to check instrument operation and accuracy during periodic maintenance or troubleshooting 2 Connect the instruments as shown in Figure 6 1 red wire to OUT on current source black wire to OUT on current source and warm up the instruments for at least five minutes Table 6 1 Instruments Required for Calibration Name Yokogawa recommended Instrument Remarks Current Standard Model CA11 Voltage Current Calibrator 4 20mA source or Model CA71 Multifunction Calibrator Current Source MLX Loop Indicator Figure 6 1 Calibrating the MLX IM 60A02S01 01E A Page 23 of 28 3 Using the values in Table 6 2 check the MLX readings by setting the current source to each of the table values Check all points in the table and verify unit is within specification Table 6 2 Percent vs Current Values Value Current 0 4 0mA 25 8 0mA 50 12mA 75 16mA 100 20mA 4 If a re calibration is required use the following method a Touch the Menu button to enter the menu system The alphanumeric display reads Setup b Touch to begin the setup routine The alphanumeric display reads Calibrate c Touch Enter to begin the calibrate routine Follow the instructions given on the display For each calibration poi
6. m2 kN m2abs kN m2G kN m3 h knot kOhm kPa kPaabs kPaG kt kt h kV kvar kW kW h kW m 2 kW m2 KWH M3 L E L l d I h l min I p l s lb Ib cf Ib d Ib gal Ib h Ib in2 Ib min Ib p Ib s Ibf in2 Ibf in2abs Ibw in2 Ix m m h M H2 m min m p m s m s2 m2 m3 m3 d m3 h m3 min m3 p m3 s m3N h mA mAq mAgabs mAqG mb mbar mbarabs mbare mbareG mbarG mbbl d mbbl h mbbl min mbbl s mbbl_b d mbbl_b h mbbl_b min mbbl_b p mbbl_b s mbbl_o d mbbl_o h mbbl o min mbbl o p mbbl o s mBq mef d mcf h mcf min mcf p mcf s mF Mg mg mg cm2 mg l MG LO2 MG LT mg m3 mg Nm3 Mgal d mgal d Mgal h mgal h Mgal min mgal min Mgal s mgal s Mgal p mgal p mGy h mH20 mH20abs mH20G mHg mHgabs MHO MHO CM MHz micron min min 1 MJ mJ MJ m 2 MJ m2 MJ Nm3 mK ml MI d MI h ml h MI min ml min MI p MI s ml s MLB H mm mm h mm min mm s mm2 mm3 mmAq mmAqabs mmAqG MMAT MMCE mmH20 mmH20abs mmH20G mmHg mmHgabs MMHO mmol mmP P MMSCFD mmWC mmWCabs mmWG mmWGabs MN mN mN m MN m2 MN m2G MNGF MOhm mOhm MOhm cm MOhm cm mol MOLWT MPa mPa mPa s MPaabs mPaabs MPaG mPaG MPM mR h mS ms mS cm mS m MSCFD MSI CM mSv h Mt h MV mV Mvar MW mW MW h MW m2 mWC mWG N N m N m2 N m2abs N m2G N2ppm nA nF nGy h Nkm3 d Nkm3 h NI h Page 19 of 28 NI min NI s Nm3 d Nm3 h Nm3 min Nm3 s ns nSv h NTU Ohm Ohm cm Ohm
7. standard communication ANSI Y NPT electrical connection without blind plugs FM Explosion proof approval 0 200 InH20 Scale in Engineering Units Please specify Scale and Engineering units when ordering ENG FT 201 Specify Tag Number when ordering SST and or SSW 7 5 Dimensions Unit mm Approx inch 111 4 37 Electrical Connection Electrical Connection 2 inch pipe 960 5 92 38 56 2 21 YOKOGAWA ZZZ SEA Page 28 of 28 Revision Record Title MLX Loop Powered Process Indicator Manual No IM 60A02S01 01E A Edition Date Page Revised Item Ist Januarv 2012 New publication 2nd March 2012 14 21 Removed J12 reference modified Specifications IM 60A02S01 01E A
8. 1 OPm IM 60A02S01 01E A Page 20 of 28 t h ubbl o p VAC t min ubbl o s var t p uF vol t s ug vol 02 TF ug l volpct THz ug m3 W TM uGy h W h Torr uHg W s TPm um W m2 TR min UMHO wi uA UMHO CM wipct ubbl d umP P wipciS ubbl h uOhm wippb ubbl min uPa wippm ubbl s us X10L ubbl_b d us ubbl b h uS cm ubbl_b min uS m ubbl_b p USI CM ubbl_b s uSv h ubbl_o d uV ubbl o h uW cm2 ubbl o min V 5 2 Setting Engineering Units The standard configuration of the MLX sets the engineering units to 0 100 Also after calibration the MLX will be set to 0 100 Refer to the Maintenance section for instructions on calibrating the MLX If other engineering units are desired they must be setup The following procedure illustrates an example of using units of 200 400 m h a Touch the Menu button to enter the menu system The alphanumeric display reads Setup b Touch Enter to begin the setup routine The alphanumeric display reads Calibrate c Touch to advance to the next menu item The alphanumeric display reads Eng units d Touch to select the Eng units routine The alphanumeric display reads Units e Touch to select the Units routine The alphanumeric display reads Alphabetical The choices here are 1 Alphabetical Use to select units from an alphabetical list Units of Measure Use to select units by specifying the units of measure i e volume time etc 3 Common units
9. 2 6 4 Rotating Display Direction dees i ash la ee 23 G 5 Cleamno A ali Liana 23 Te General SpeciieationiSio lira a ais 24 7 1 Standard Specifications inoa hail l aj 24 7 2 Model and Suffix Codes ri 25 DI te L L L A EN 27 REVISION Record ie ki A A NTE eds Aad aia aas 28 IM 60A02S01 01E A Page 3 of 28 1 Introduction Thank you for purchasing the Model MLX Loop Powered Process Indicator Your Model MLX Process Indicator was preciselv calibrated at the factorv before shipment To ensure both safetv and efficiencv please read this manual carefully before you operate the instrument The Model MLX field mounted indicator receives DC current signals from electronic transmitters and indicates process measurement values This instruction manual gives instructions on handling mounting and wiring of the indicator m Regarding This Manual This manual should be provided to the end user The contents of this manual are subject to change without prior notice All rights reserved No part of this manual may be reproduced in any form without Yokogawa s written permission Yokogawa makes no warranty of any kind with regard to this manual including but not limited to implied warranty of merchantability and fitness for a particular purpose If any question arises or errors are found or if any information is missing from this manual please inform the nearest Yokogawa sales office The specificati
10. 8M Communication Standard HART Communications To be announced later Electrical Connection LI ANSI NPT female two electrical connections without blind plugs AAA ANSI Y NPT female two electrical connections and a 304 SST blind plug Die eras ANSI Y NPT female two electrical connections and a 316 SST blind plug Fila ian ISO M20 female two electrical connections without blind plugs dicci ISO M20 female two electrical connections and a 316 SST blind plug Optional Codes QOptional specification IM OPTIONAL SPECIFICATIONS For Explosion Protected Type Item Description Code Factory Mutual FM FM Explosion proof Approval Applicable Standard FM3600 FM3615 FM3810 ANSI NEMA 250 Explosionproof for Class I Division 1 Groups A B C and D Dust ignitionproof for Class III Division 1 Groups E F and G in Hazardous locations indoors and outdoors NEMA 4X Temperature class T5 Ambient Temperature 40 to 85 C 40 to 185 F FF1 FM Intrinsically Safe FM Explosion proof FM Non incendive Approval Pending Applicable Standard FM3600 FM3610 FM3611 FM3615 FM3810 ANSI NEMA 250 Intrinsically Safe for Class Division 1 Groups A B C 4 D Class II Division 1 Groups E F amp G and Class III Division 1 Class I Zone 0 in Hazardous Locations AEx ia IIC Non incendive for Class I Division 2 Groups A B C 4 D Class II Division 2 Groups E F 8 G and Class III
11. RFORMANCE SPECIFICATIONS Accuracy 0 05 of full scale 1 digit Operating Current 3 6mA to 28mA Ambient Temperature 30 to 60 C 22 to 140 F Ambient Humidity 0 to 100 RH at 23 C 73 F Ambient Temperature Effect 0 1 C per 10 C Over range 200mA without damage Maximum error 0 02 0 03 of full scale Conformity Linearity 0 03 Hysteresis error 0 03 Repeatability 0 03 Vibration 3G 10 150Hz Shock 50G Explosion Protection FM CSA ATEX and IEC pending PHYSICAL SPECIFICATIONS Enclosure Material Housing Low copper cast aluminum alloy with Polyurethane resin baked finish Deep sea moss green equivalent of Munsell 0 6GY3 1 2 0 or SUS316 cast stainless steel ASTM CF 8M Name plate Black anodized aluminum or 316 SST Tag 304 SST or 316 SST Wired tag 304 SST or 316 SST Degrees of Protection NEMA 4X IP67 Mounting Nominal 27 50mm pipe mount or surface horizontal or vertical Weight 1 25kg 2 70 lbs Without mounting bracket Add 0 8 kg 0 35 Ibs for mounting bracket Electrical Connection Y NPT female or M20 female IM 60A02S01 01E A 7 2 Model and Suffix Codes E MODEL AND SUFFIX CODES Page 25 of 28 Model Suffix Codes Description MX CO Asa elia Loop Indicator Input signal Alici 4 to 20mA DC Mounting ji a 2 inch Horizontal Pipe Dr a 2 inch Vertical Pipe or wall mount Housing Cast aluminum alloy SUS316 cast stainless steel and ASTM CF
12. User s Model MLX Manual Loop Powered Process Indicator IM 60A02S01 01E A VOKOGAWA gt IM ee 01E A Edition Page 2 0f 28 Contents Loop Powered Process dia a il lille ia add 1 Contar a Aa 2 1 Introduction nnen iaire teiar tasen Eaa ta 3 m Regarding This Manual l air ibs S A 3 1 1 Safe Use of This PEO A A a ANA 4 VV AA ee AO IA ee ee alee ee DARIO ACI EEE EEE NEG 5 2 Handlin BUNUN ONNS oo titi a ae 6 2 1 Model and Specifications Check nr rna r ann 7 2 2 L mia ea i ee hl i ihe eet ec ei ale al ee ec et ade Lp eee ToS 7 Did SUOLA ecc 7 2 4 Selecting the Installation Location 7 2 5 Insulation Resistance and Dielectric Strength Test 8 2 6 Installation of an Explosion Protected Instrument 9 2 6 1 Factory Mutual FM Certification sen nnnnnnnnn nn mnn nn nara nn nn nannnn mann nnnnnn na 9 2 7 EMC Conformity Standards iii iksi ieda d p d dp mnene 10 3 Installation iii A A A ice eran Fels eats Wea 11 3 1 Mounting Examples aida o i tt calli 12 DEN ia 13 4 1 Wiring P eca tionsS a Ree aca 13 4 2 Selecting the Wiring Materials e 13 4 3 WINS A AA A a 13 4 3 1 Loop Conbsurationi i ade iii 13 JO mera ti ea i lello aaa ona Error Bookmark not defined SONNERIE A ANA cd Error Bookmark not defined 6 Mate ai 22 OL OVETVICW E ISS 22 6 2 Calibration Instruments Selection nn nannti nn nnnnnnnnnnnnnnnnnnnnn nn 22 6 3 COMIDO ian a bba bg dab based da ala alia 2
13. ant heat from plant equipment provide adequate thermal insulation and or ventilation 4 Ambient Atmosphere 5 Do not install the indicator in a corrosive atmosphere If this cannot be avoided there must be adequate ventilation as well as measures to prevent the leaking of rain water and the presence of standing water in the conduits 6 Shock and Vibration 7 Although the MLX is designed to be relativelv resistant to shock and vibration an installation site should be selected where this is kept to a minimum 2 5 Insulation Resistance and Dielectric Strength Test Since the MLX has undergone insulation resistance and dielectric strength tests at the factorv before shipment normallv these tests are not required If the need arises to conduct these tests heed the following 1 Do not perform such tests more frequentiv than is absolutelv necessarv Even test voltages that do not cause visible damage to the insulation mav degrade the insulation and reduce safetv margins 2 Never applv a voltage exceeding 500 V DC 100 V DC with an internal lightning protector for the insulation resistance test nor a voltage exceeding 500 V AC 100 V AC with an internal lightning protector for the dielectric strength test 3 Before conducting these tests disconnect all signal lines from the transmitter terminals The procedure for conducting these tests is as follows e Insulation Resistance Test 1 Short circuit the and SUPPLY terminals in the
14. e SUFFIX Specified suffix code MFG Year of manufacture NO Serial number INPUT Input signal 4 20mA CALIB RANGE Specified calibration range Figure 2 2 MLX Name Plate 2 2 Unpacking Keep the indicator in its original packaging to prevent it from being damaged during shipment Do not unpack the indicator until it reaches the installation site 2 3 Storage The following precautions must be observed when storing the instrument especially for a long period a Select a storage area which meets the following conditions e Itis not exposed to rain or subject to water seepage leaks e Vibration and shock are kept to a minimum e It has an ambient temperature and relative humidity within the following ranges Ambient temperature 40 to 85 C approval codes may affect limits Relative humidity 0 to 100 R H Preferred temperature and humidity approx 25 C and 65 R H b When storing the indicator repack it carefully in the packaging that it was originally shipped with 2 4 Selecting the Installation Location 1 The MLX is designed to withstand severe environmental conditions However to ensure that it will provide years of stable and accurate performance take the following precautions when selecting the installation location 2 Ambient Temperature IM 60A02S01 01E A Page 8 of 28 3 Avoid locations subject to wide temperature variations or a significant temperature gradient If the location is exposed to radi
15. ease be sure to follow this manual s safetv instructions when handling this instrument If these instructions are not heeded the protection provided by this instrument may be impaired In this case Yokogawa cannot guarantee that the instrument can be safely operated Please pay special attention to the following points a Installation e This instrument may only be installed by an engineer or technician who has an expert knowledge of this device Operators are not allowed to carry out installation unless they meet this condition e All installation shall comply with local installation requirements and the local electrical code b Wiring e The instrument must be installed by an engineer or technician who has an expert knowledge of this instrument Operators are not permitted to carry out wiring unless they meet this condition Before connecting the power cables please confirm that there is no current flowing through the cables and that the power supply to the instrument is switched off c Operation Do not open the covers when an explosive atmosphere is present d Maintenance e Please carry out only the maintenance procedures described in this manual If you require further assistance please contact the nearest Yokogawa office e Care should be taken to prevent the build up of dust or other materials on the display glass and the name plate e Modification IM 60A02S01 01E A Page 5 of 28 Yokogawa will not be liable for malfunctions
16. es the MLX must be protected by a suitable enclosure capable of protecting it from the environment and the effects of impact thermal or mechanical stress Do not install the MLX in the following conditions e Extreme Temperatures beyond the temperature rating of the instrument e High vibration areas above the vibration rating of the instrument e Extremely corrosive environments Installation MUST comply with the requirements specified in FM 3600 and must be performed by suitably qualified staff only IM 60A02S01 01E A Page 12 of 28 3 1 Mounting Examples Vertical Pipe Mounting U bolt nut Mounting bracket Spring washer Bolt Note Wall mounting bolts are user supplied Figure 3 1 Mounting configurations IM 60A02S01 01E A Page 13 of 28 4 Wiring 4 1 Wiring Precautions A weortant Lay wiring as far as possible from electrical noise sources such as large capacity transformers motors and power supplies Remove the electrical connection dust cap before wiring e To prevent noise pickup do not pass signal and power cables through the same ducts Explosion protected instruments must be wired in accordance with specific requirements and in certain countries legal regulations in order to preserve the effectiveness of their explosion protected features The MLX is powered by the current output loop and does not require external power All devices must be wired in series with the current
17. kogawa or an approved representative of Yokogawa Malfunction or damage from improper relocation of the product in question after delivery Reason of force majeure such as fires earthquakes storms floods thunder lightening or other natural disasters or disturbances riots warfare or radioactive contamination IM 60A02S01 01E A Page 6 of 28 2 Handling Cautions This chapter provides important information on how to handle the MLX Loop Powered Process Indicator Read this carefully before using the indicator The MLX indicator is thoroughly tested at the factory before shipment When taking delivery of an instrument visually check it to make sure that no damage occurred during shipment Also check that the indicator mounting hardware shown in figure 2 1 is included After checking the indicator carefully repack it in its box and keep it there until you are ready to install it Vertical Pipe Mounting Note Wall mounting bolts are user supplied Figure 2 1 MLX Mounting Hardware IM 60A02S01 01E A Page 7 of 28 2 1 Model and Specifications Check The model name and specifications are written on the name plate attached to the case TMLX A11 10 FF1 ENG_ ASSEMBLED IN USA WITH Intertek WARNING FOREIGN AND DOMESTIC 4000798 OPEN CIRCUIT BEFORE REMOVING COVER March 2012 PARTS Conforms to Standards INSTALL IN ACCORDANCE WITH THE YOKOGAWA 888 rename INSTRUCTION MANUAL MODEL Specified model cod
18. loop Twisted pair shielded cable is recommended 4 2 Selecting the Wiring Materials a Use stranded leadwires or cables which are the same as or better than 600 V grade PVC insulated wire or its equivalent b Use shielded wires in areas that are susceptible to electrical noise c In areas with higher or lower ambient temperatures use appropriate wires or cables d In environment where oils solvents corrosive gases or liquids may be present use wires or cables that are resistant to such substances e It is recommended that crimp on solderless terminal lugs for 4 mm screws with insulating sleeves be used for leadwire ends 4 3 Wiring 4 3 1 Loop Configuration The following is a typical wiring example of the MLX connected to an EJA Pressure Transmitter IM 60A02S01 01E A 1 General use Tvpe Note The EJ A Transmitter below can be replaced with any 4 20mA 2 wire device LOOP INDICATOR TRANSMITTER EJA SUPPLY CHECK SHORT BAR Figure 4 1 General use Type wiring examples Page 14 of 28 IM 60A02S01 01E A Page 15 of 28 5 Operation 5 1 Overview The MLX is loop powered Connect it in series with a 4 20mA loop as per Section 4 Wiring Observe correct polarity as the indicator is protected against reversed connections but will not display a reading After properly connecting the indicator to a transmitter or other 4 20mA source the display will indicate the value of the current flo
19. lphabetical engineering units from Alphabetical BTU SCF c s cal cal kWh CC MIN Cel CelD P cf d cf h cf min cf p cf s CFM cft min cm cm min cm s cm2 cm3 cm3 d cm3 h cm3 min cm3 p cm3 s cmAq cmAqabs cmAgG cmH20 cmH20abs cmH20G cmHg cmHgabs CO2ppm COS cP cpm cps cSt d D P dB deg degF degR degree DEWPOINT dm2 F FNU foot foot p foot s footAq footAqabs footH20 footH20abs ftH20 ftH20abs g g cm2 g cm2G g cm3 g d g h g l g m2 g m3 g min g ml g mm2 g mm2G g Nm3 g p g s G T gal d gal h gal min gal p gal s GBq Gcal h gf gf m gf cm2 GHz GJ GJ h GOhm GPM gpm GW GW h h HL H hPa hPaabs hPaG Hz in in s inAq inAqabs inAqG inH20 inH20abs inH20G inHg inHgabs inWC inWCabs inWG inWGabs J K kA kbbl d kbbl h kbbl min kbbl s kbbl_b d kbbl_b h kbbl b min kbbl b p kbbl b s kbbl o d kbbl o h kbbl o min kbbl_o p kbbl_ o s KC NM3 kcal kcal Nm3 kef d kef h kcf min kcf p kcf s kg kg cm2 kg cm2abs Page 18 of 28 kg d kg h kg l kg m2 kg m2G kg m3 kg min kg mm2 kg mm2G kg p kg s kgal d kgal h kgal min kgal p kgal s kgf kgf m kgf cm2 kgf cm2abs kgf cm2G kgf m2 kgf m2G kgf mm2 kgf mm2G kgfm kHz kJ kl kl d kl h kl min kl p kl s klb d klb h klb min klb p klb s KLEENH klx km km h km3 km3 d km3 h km3 min BRIX Heme GB s IM 60A02S01 01E A km3N h KMHO kN kN m kN
20. nt after adjusting the current standard to the value indicated press the Menu button 6 4 Rotating Display Direction The MLX display is designed so that 1t can be rotated in increments of 90 degrees When there is a need to change the orientation of the display use the following procedure 1 Remove power from the MLX 2 Remove the glass cover from the display side 3 Remove the two anchor nuts from the MLX module assembly 4 Remove and rotate the display assembly to the desired orientation 5 Re install and tighten the two nuts on the module assembly 6 Replace the glass cover 6 5 Cleaning Cleaning should be restricted to wiping with a damp cloth or approved anti static cleaner to avoid the danger of ignition due to electrostatic charges IM 60A02S01 01E A Page 24 of 28 7 General Specifications 7 1 Standard Specifications FUNCTIONAL SPECIFICATIONS Input 4 20mA DC 2 wire Voltage Drop 3 5V at 20mA LCD Display Numerical Six 7 segment digits Alpha numerical Six 14 segment characters Bar graph 20 segment Bar graph Symbols P SP T F N x10 x100 x1000 Configuration User configurable for desired engineering units Method User configurable from front panel Zero amp Span Zero and span can be set between 999999 Turn on Time 12 second includes power on self test and memory integritv check Update Time 1 second Isolation Input Output Ground isolated to 500V DC PE
21. ode ANSI NEPA70 and Local Electrical Codes e FACTORY SEALED CONDUIT SEAL NOT REQUIRED IM 60A02S01 01E A Page 10 of 28 Note 3 Installation e Strictly observe the WARNING on the attached nameplate WARNING OPEN CIRCUIT BEFORE REMOVING COVER FACTORY SEALED CONDUIT SEAL NOT REQUIRED INSTALL IN ACCORDANCE WITH THE INSTRUCTION MANUAL Note 4 Maintenance and Repair e The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void Factory Mutual Explosionproof Approval Note 5 Special Conditions for Safe Use e In the case where the enclosure of the MLX is made of aluminum it must be installed such that even in the event of rare incidents ignition sources due to impact and friction sparks are excluded 2 7 EMC Conformity Standards EN61326 1 Class A Table 2 for use in industrial locations EN61326 2 3 IM 60A02S01 01E A Page 11 of 28 3 Installation The MLX can be mounted on a wall or a 2 pipe The housing is NEMA 4X rated so it can be mounted outside in the field 0 Ring seals MUST be carefully examined after opening to ensure that the NEMA 4X protection is maintained Damaged seals MUST be replaced The complete electrical circuit in the hazardous area MUST be capable of withstanding an AC test voltage of 500V RMS to earth or frame of the apparatus Where there is a possibility of attack by aggressive substanc
22. ons covered by this manual are limited to those for the standard type under the specified model number break down and do not cover custom made instruments Please note that changes in the specifications construction or component parts of the instrument may not immediately be reflected in this manual at the time of change provided that postponement of revisions will not cause difficulty to the user from a functional or performance standpoint Yokogawa assumes no responsibilities for this product except as stated in the warranty If the customer or any third party is harmed by the use of this product Yokogawa assumes no responsibility for any such harm owing to any defects in the product which were not predictable or for any indirect damages The following safety symbols are used in this manual NWARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury IM 60A02S01 01E A Page 4 of 28 caution Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices AimpoRTANT Indicates that operating the hardware or software in this manner mav damage it or lead to svstem failure A nore Draws attention to information essential for understanding the operation and features 1 1 Safe Use of This Product For the safetv of the operator and to protect the instrument and the svstem pl
23. or damage resulting from any modification made to this instrument by the customer 1 2 Warranty The warranty shall cover the period noted on the quotation presented to the purchaser at the time of purchase Problems occurring during the warranty period shall basically be repaired free of charge If any problems are experienced with this instrument the customer should contact the Yokogawa representative from which this instrument was purchased or the nearest Yokogawa office If a problem arises with this instrument please inform us of the nature of the problem and the circumstances under which it developed including the model specification and serial number Any diagrams data and other information you can include in your communication will also be helpful The party responsible for the cost of fixing the problem shall be determined by Yokogawa following an investigation conducted by Yokogawa The purchaser shall bear the responsibility for repair costs even during the warranty period if the malfunction is due to Improper and or inadequate maintenance by the purchaser Malfunction or damage due to a failure to handle use or store the instrument in accordance with the design specifications Use of the product in question in a location not conforming to the standards specified by Yokogawa or due to improper maintenance of the installation location Failure or damage due to modification or repair by any party except Yo
24. otected Instrument NWARNING If a customer makes a repair or modification and the instrument is not restored to its original condition its safety may be compromised and the instrument may be hazardous to operate Please contact Yokogawa before making any repair or modification to an instrument AN caution This instrument has been tested and certified as being Explosionproof Please note that severe restrictions apply to this instrument s construction installation external wiring maintenance and repair A failure to abide by these restrictions could make the instrument a hazard to operate NWARNING Maintaining the safety of Explosionproof equipment requires great care during mounting wiring and piping Safety requirements also place restrictions on maintenance and repair Please read the following sections very carefully 2 6 1 Factory Mutual FM Certification 1 Technical Data a FM Explosionproof Type Caution for FM Explosionproof type Note 1 Model MLX Loop Process Indicator with optional code FF1 for potentially explosive atmospheres e Certificate No 4000798 e Applicable Standard FM 3600 FM 3615 FM 3810 NEMA 250 e Explosionproof for Class I Division 1 Groups A B C and D e Dust ignitionproof for Class II III Division 1 Groups E F and G e Enclosure rating NEMA 4X Temperature Class T5 e Ambient Temperature 30 to 60 C Note 2 Wiring e All wiring shall comply with National Electrical C
25. terminal box 2 Turn OFF the insulation tester Then connect the insulation tester plus lead wire to the shorted SUPPLY terminals and the minus lead wire to the grounding terminal 3 Turn ON the insulation tester power and measure the insulation resistance The voltage should be applied as briefly as possible to verify that the insulation resistance is at least 20 MO 4 After completing the test and being very careful not to touch exposed conductors disconnect the insulation tester and connect a 100 kQ resistor between the grounding terminal and the short circuiting SUPPLY terminals Leave this resistor connected at least one second to discharge any static potential Do not touch the terminals while it is discharging e Dielectric Strength Test 1 Short circuit the and SUPPLY terminals in the terminal box 2 Turn OFF the dielectric strength tester Then connect the tester between the shorted SUPPLY terminals and the grounding terminal Be sure to connect the grounding lead of the dielectric strength tester to the ground terminal 3 Set the current limit on the dielectric strength tester to 10mA then turn ON the power and graduallv increase the test voltage from 0 to the specified voltage 4 When the specified voltage is reached hold it for one minute 5 After completing this test slowly decrease the voltage to avoid any voltage surges IM 60A02S01 01E A Page 9 0f 28 2 6 Installation of an Explosion Pr
26. ters Ex ia Ui 30V Ii 200mA Pi 0 9W Ci 10nF Li 0 Ex ic Ui 30V Ci 10nF Li 0 Flameproof Applicable Standard IEC 60079 0 IEC60079 1 Il 2G 2D Ex d IIC T5 Ex tD A21 IP6X T85 Degree of protection IP66 and IP67 Amb Temp 40 to 85 C 40 to 185 F for T5 su2 Combination of Approvals Combination of FU1 CU1 and KU21 Approvals V1U INMETRO Brazil Certificate INMETRO Intrinsically Safe INMETRO Flameproof Approval Pending BUI GOST Russian Certificate Russian GOST certificate Pending QRI IM OPTIONAL SPECIFICATIONS Item Description Code Paint Epoxy resin paint Polyurethane Epoxy combination paint Anti corrosion coating X1 X2 Calibration Calibration range and scale ENG Stainless steel tag plate Stainless steel tag screw attached to housing Stainless steel tag wired to housing SST SSW IM ORDERING INFORMATION Specifv the following when ordering 1 Model and suffix codes 2 Option codes 3 Tag number IM OPTIONS The MLX is fully field configurable from the front panel To order a pre configured unit specifv the ENG option followed by the desired setpoints zero full scale and engineering units 4 Calibration range desired optional IM 60A02S01 01E A Example Ordering Information MLX A11 10 FF1 ENG SST Field Mounted Loop Indicator 4 to 20mA DC 2 Horizontal Pipe mount aluminum housing
27. valued the digits roll over from 9 to 0 1 Touch Last to move to the next digit m Touch to increment the selected blinking digit to the desired valued n Repeat Steps 1 and m until desired value is indicated including sign value o Touch Exit to accept the entered value as the engineering units zero value The alphanumeric display shows Eng units 0 value The numeric display shows the current engineering unit zero value p Touch Next to move to the next menu item The alphanumeric display reads Eng units FS value The numeric display shows the current engineering unit FS value with the least significant digit blinking q Repeat Steps k through o set the engineering units FS value r Touch to exit the setup routine and resume measurements IM 60A02S01 01E A Page 22 of 28 6 Maintenance 6 1 Overview The electronics of the MLX is maintenance free This chapter describes the procedures for calibration and rotating the display within the enclosure Please carefully and thoroughly read the following sections for information on how to perform these maintenance procedures 6 2 Calibration Instruments Selection Table 6 1 lists the instruments that can be used to calibrate the MLX When selecting an instrument consider the required accuracy level Exercise care when handling these instruments to ensure they maintain the specified accuracy 6 3 Calibration The MLX is factory calibrated to 0 100
28. wing in the loop 0 100 for the standard model or other specified engineering units can be user defined A weortant Connecting directly across a 24 V supply without a transmitter or similar device to regulate the loop current will result in damage to either the power supply or the MLX The MLX can easily be ranged to display virtually any engineering units by properly calibrating and selecting the desired units to be displayed The MLX uses a 4 key touchpad for operator input Each key may have multiple functions assigned to it based a particular menu operation These keys allow the user to access setup parameters enter engineering units zero and full scale values select display symbols and modify display functions Figure 5 1 illustrates the keyboard Figure 5 1 MLX 4 key Touch keypad Each key serves to navigate the menu systems and select a particular value or function The overall function of each key is shown in Table 5 1 Table 5 1 MLX key functions Key Function Selects the previous menu item or menu level Cast Next Selects the next menu item or menu level Enter Selects the current menu item or menu level Exit Exits the menu item or menu level and returns the MLX to normal functions IM 60A02S01 01E A MLX Menu Tree 1 Setup 2 Demo Setup Calibrate Eng units Response Indicators Decimal pt Scroll Return Demo 1 Real 2 Simulated
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