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draft - 23 september 2014 MTL1000 series signal conditioning range september 2014 inm 1000 1 instruction manual signal conditioners
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iii contents 1 intr oduction 1 1 1 general 1 2 MTL1000 se ries description 1 2 1 modules 1 2 2 accessories 1 3 ins tallati on pre cautions 2 3 1 general 2 3 2 installation 2 3 2 1 modules 2 3 2 2 cabinet and enclosure mounting 2 4 common spe cifications 3 5 modules 4 5 1 5 1 1 mtl1991 p ower feed and alarm module 4 5 1 2 mtl1141 transmitter repeater power supply 4 5 1 3 mtl1142 transmitter repeater power supply with hart 5 5 1 4 mtl1143 transmitter repeater power supply with hart and repeat output 5 5 2 mtl1171, 1172 temperature and mtl1173 p otentiometer converters 6 table 1 confguration and switch settings 6 table 2 mtl1171 and mtl1172 range switch setting 6 5 2 1 mtl1171 thermocouple input converter 7 5 2 2 mtl1172 rtd input converter 7 5 2 3 mtl1173 p otentiometer input converter 7 6 maintenance 8 6 1 routine maintenance 8 6 2 e nclosures 8 7 appendix a 8 table 3 isolator current consumption for mtl1991 calculation 8 draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
iv s ymbols used on the product and in this manual caution - read the instructions caution - hot surface draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
1 1 intr oduction 1 1 general this instruction manual describes the procedures for installing, connecting, checking and maintaining MTL1000 series isolating interfaces and accessories. the MTL1000 products are designed to provide signal isolation and signal conversion between equipment and areas of a process plant. signal isolation eliminates or reduces the risk of earth loops, surges and noise, all of which can result in loss of signal integrity or damage to equipment. in addition, some modules offer the ability to convert signal types to provide level compatibility between system components. 2 MTL1000 series description the MTL1000 series of modules and accessories is designed for use with process connected systems. it consists of compact isolating interface modules mounted on 35mm din rail. power is provided through a din rail mounted power bus, to which, the isolator module is plugged into when clipped onto the din rail. power is supplied to the isolators via a dedicated power feed module which also provides current limit protection in the event of a fault. the MTL1000 series modules provide power and status information via leds on the top of the module. where module confguration is required, then switches are accessed by the user through the side cover. 2 1 modules the table below lists the modules in the MTL1000 range: mtl1141 transmitter repeater power supply mtl1142 transmitter repeater power supply with hart passthrough mtl1143 transmitter repeater power supply with hart passthrough and repeat output mtl1171 thermocouple input converter mtl1172 resistance temperature device (rtd) converter mtl1173 potentiometer input converter mtl1991 power feed and alarm module 2 2 accessories pbus6 2 din rail power bus connector for 2 module positions (pack of 10) pbus02 power bus, direct connection terminals (1 set) th1000 module tagging holder (pack of 20) in m1000-1 s eptember 2014 MTL1000 s eries s ignal conditioning pbus6.2 draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
2 3 ins tallati on pre cautions 3 1 general this equipment must be installed, operated and maintained only by trained competent personnel and in accordance with all appropriate international, national and local standard codes of practice and site regulations for apparatus and in accordance with the instructions contained here. 3 2 installation 3 2 1 modules all modules are din rail mounted in conjunction with the power bus connector. the power bus must be installed on the din frst with the required number of slots for the modules that will be ftted. each power bus connector powers 2 isolators. the mtl1991 power feed module, if used, will occupy one position. this may be located in any position. power may be connected directly to the bus using the pbus02 connector set. these are screw terminals that plug directly into the power bus at either end of the bus. modules are mounted on the din rail by clipping the foot, furthest from the release clip, on to the dinrail frst. rotate the module down onto the din rail and clip into place (fig.1). to release, use a fatbladed screwdriver to release the module clip (fig 2), hold module and rotate clip upwards. (fig.3) 3 2 2 cabinet and enclosure mounting the MTL1000 modules will normally be installed with other equipment and wiring in a cabinet or enclosure. consideration must be given to the management of the internal temperatures. space must be provided around the modules to allow airflow. the optimum transfer of heat is attained when the din rail is mounted horizontally but vertical din rails may also be used where adequate space is available, especially in larger cabinets. principle sources of heat, such as power supplies, should be located above the modules. an enclosure depth, measured from the base of the din rail, of at least 150mm is recommended. the absolute minimum is 115mm. caution: exercise care when removing modules in operation from the middle of a group as the surface temperature on the side faces may be hot. pbus02 fitting module to din rail release clip module removal fig. 1 fig. 2 fig. 3 draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
3 4 common spe cifications for individual product specifcations please refer to individual product specifcation sheets. terminals screw clamp. conductors of up to 13awg / 1.8mm dia. stranded or single- core copper. max torque 0.4nm to 0.6nm. cable insulation strip /ferrule length 6-8mm pbus02 use wire type solid / stranded, 28 C 16 awg / 0.14-1.3mm dia, C copper p ower supply voltage 18v to 32v dc selv (ul listed where ul is applicable) isolation 50v ac or dc between power, feld and system circuits. (tested to 1500v) mounting t-section 35mm din rail (7.5mm or 15mm) to en 50022 ambient temperature limits -20 to +60c (-6 to +140f) operating -40 to +80c (-40 to +176f) storage humidity 5 to 95% relative humidity altitude <2000m weight 120g emc en61326 and ne21* dimensions 101 mm 112 mm 110 mm 6.2 mm draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
4 5 modules 5 1 5 1 1 mtl1991 p ower feed and alarm module the mtl1991 module is required to feed power to a group of MTL1000 series modules via the din rail power bus. each power feed module provides reverse voltage protection and power monitoring. the power monitor relay provides a dry contact output which may be used for connection into a monitoring system or local indicator. the number of isolators connected to any one power feed module must be assessed for power consumption. the maximum load current when feeding power via terminal 5 is 1a. if redundant power inputs are not required then terminal 6 may be used and a maximum load current of 2 a is acceptable. check current consumption table in appendix a for details. where redundant power feeds are required, two mtl1991 modules are ftted with one power feed on each. the maximum load current is 1a 5 1 2 mtl1141 transmitter repeater power supply before installing this modules check the connection requirements on the system side of the module. the output may be confgured to source or sink current. current source is used when the input to the system is passive, ie there is no power supply present and it presents a resistive load. current sink is used mainly with a 2 wire transmitter input to the system where loop power and input terminals are provided. terminal 6 on the mtl1141 is connected to the transmitter supply, and terminal 5 to the input. see fig.4. switch sw1 on the module must be set prior to installation. the module is supplied with the switch set in source mode. v+ supply input 19-32v dc 1a d e alarm 1 2 5 6 7 2a direct v+ supply input (max 2a) v- supply input bus supply output vs+ vs- pwr + - tx+ input com 1 2 3 5 6 d e vs- vs+ 4-20ma + - + - output + - load load sw1 source - sink source output 5 + 6 - 4-20ma load sink output 5 6 - + - + power label side of module sw1 source - sink fig. 4 draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
5 5 1 3 mtl1142 transmitter repeater power supply with hart before installing this modules check the connection requirements on the system side of the module. the output may be confgured to source or sink current. current source is used when the input to the system is passive, i.e. there is no power supply present and it presents a resistive load. current sink is used mainly with a 2 wire transmitter input to the system where loop power and input terminals are provided. terminal 6 on the mtl1142 is connected to the transmitter supply, and terminal 5 to the input. switch sw1 on the module must be set prior to installation. the module is supplied with the switch set in source mode. hart communications are passed with both settings. in source mode the input impedance on the system input must be >240 for hart compliance. 5 1 4 mtl1143 transmitter repeater power supply with hart and repeat output before installing this modules check the connection requirements on the system side of the module. output 1 is confgured to source current. output 2 on terminals 7 and 8 generates a repeat 4-20ma signal to another device. this output provides a 4-20ma source current to the system input. hart communication is not provided via this output. an active current source may also be applied via terminals 2 and 3. hart communications are not provided when operating in this mode. pwr + - tx+ input com 1 2 3 5 6 d e vs- vs+ 4-20ma + - + - output + - load load sw1 source - sink tx+ input com 1 2 3 5 6 d e vs- vs+ 4-20ma + - load 7 8 4-20ma + - load output 1 output 2 pwr + - + - draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
6 5 2 mtl1171, 1172 temperature and mtl1173 p otentiometer converters the mtl1171, for thermocouples and mtl1172, for rtd, convert low level temperature inputs to 4-20ma. the mtl1173 is for a potentiometer inputs. input type and range setting is performed using switches on the side of the module. the sensor types and wire break detection are selected using switches 1-4 and a selection of popular ranges is available using switches 6-9. see tables 1 and 2. table 1 confguration and switch settings model input type sw1 sw2 sw3 sw4 sw5 type wire break wire break drive trip 1 trip 2 mtl1171 thc j/k on/off up/down n/a n/a mtl1172 rtd 3w/4w mtl1173 pot - table 2 mtl1171 and mtl1172 range switch setting range thc/rtd sw6 sw7 sw8 sw9 s w10 0 to 100c 0 0 0 0 - 0 to 150c 0 0 0 1 - 0 to 200c 0 0 1 0 - 0 to 350c 0 0 1 1 - 0 to 500c 0 1 0 0 - 0 to 650c 0 1 0 1 - 0 to 800c 0 1 1 0 - 0 to 1000c 0 1 1 1 - -10 to 50c 1 0 0 0 - -50 to 50c 1 0 0 1 - -50 to 100c 1 0 1 0 - -50 to 150c 1 0 1 1 - -50 to 250c 1 1 0 0 - -50 to 350c 1 1 0 1 - -200 to 600c 1 1 1 0 - s pecial (reserved) 1 1 1 1 - 5 2 1 mtl1171 thermocouple input converter sw1 sw10 mtl117x draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
7 for type j or k thermocouples. cold junction compensation is provided by the mtl1171. switch settings select open wire detection and up/down scale drive. 5 2 1 5 2 2 mtl1172 rtd input converter for pt100 rtd sensors. switch settings select 3 or 4 wire connection and open wire detection with up/down scale drive. 5 2 3 mtl1173 p otentiometer input converter potentiometer input. switch settings select open wire detection with up/down scale drive. mtl1171 e d input- 5 6 2 1 vs- vs+ 4-20ma input + type j or k thermocouple 7 8 1-5v + - load system ai + - current channel input + - voltage channel input load 24v tx power limit 2 wire tx system input - + input mtl1172 e d 5 6 2 1 4-20ma 7 8 1-5v + - load system ai + - current channel input + - voltage channel input load 24v tx power limit 2 wire tx system input - + input input + input - 4 wire pt100 rtd input + input - 3 wire pt100 rtd vs- vs+ mtl1173 e d 5 6 2 1 4-20ma 7 8 1-5v + - load system ai + - current channel input + - voltage channel input load 24v tx power limit 2 wire tx system input - + input potentiometer input vs- vs+ draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
8 6 maintenance n ote: return any isolator identifed as faulty to the mtl group company or representative from which it was purchased, for repair or replacement. 6 1 routine maintenance occasionally check the general condition of the installation to make sure that no deterioration has occurred. at least once every two years (and more frequently for particularly harsh environments), check that: ? isolators are of the types specifed in the relevant documentation. ? isolators are legibly tagged and tag details given comply with the relevant documentation. ? isolators are securely clipped to the din rail. ? all cable connections are properly made to the isolators. ? all connecting cables are of the specifed type and rating, are correctly routed (particularly when ftted in enclosures), and are not frayed or otherwise damaged. ? all cable screens are properly earthed. ? there is no sign of damage or corrosion. 6 2 e nclosures when ftted in enclosures the only maintenance needed is cleaning and periodic visual inspections. clean external surfaces only, using soap and water, do not use chemical solvents or proprietary cleaning fuids. every year (more frequently in harsh environments), inspect enclosures and check that: ? they are attached securely to their mountings. ? any accumulation of water inside has been removed (using the drain plug, if ftted). ? cable gland nuts are tight. ? there are no signs of any damage. ? all connections are properly made. 7 appendix a table 3 isolator current consumption for mtl1991 calculation @ 24v isolator typical load current maximum load current mtl1141 33ma @16ma output 51ma mtl1142 35ma @16ma output 52ma mtl1143 50ma @16ma output 53ma mtl1171 38ma 40ma mtl1172 38ma 40ma mtl1173 38ma 40ma draft - 23 september 2014 draft - 23 september 2014 inm 1000 1
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eur ope (emea): +44 (0)1582 723633 mtlenquiry@eaton.com the america s: +1 800 835 7075 mtl-us-info@eaton.com a s ia-p acific: +65 6 645 9888 sales.mtlsing@eaton.com the given data is only intended as a product description and should not be regarded as a legal warranty of properties or guarantee. in the interest of further technical developments, we reserve the right to make design changes. measurement technology limited, great marlings, butterfeld, luton beds, lu2 8dl, uk. tel: + 44 (0)1582 723633 fax: + 44 (0)1582 422283 e-mail: mtlenquiry@eaton.com www.mtl-inst.com ? 2014 mtl all rights reserved publication no. inm 1000 1 september 2014 au s tralia mtl instruments pty ltd, 205-209 woodpark road, smithfeld, new south wales 2164, australia tel: + 61 1300 308 374 fax: + 61 1300 308 463 e-mail: mtlsalesanz@eaton.com china cooper electric (shanghai) co. ltd. room 2001, china life tower, 16 chao yang men wai street, chao yang district, beijing, china 100020 tel: + 86 10 5980 0231 fax: + 86 10 8562 5725 e-mail: mtl-cn@eaton.com france mtl instruments sarl, 7 rue des rosiristes, 69410 champagne au mont dor france tel: + 33 (0)4 37 46 16 70 fax: +33 (0)4 37 46 17 20 e-mail: mtlfrance@eaton.com germany mtl instruments gmbh, heinrich-hertz-str. 12, 50170 kerpen, germany tel: + 49 (0)22 73 98 12 - 0 fax: + 49 (0)22 73 98 12 - 2 00 e-mail: mtlgmbh@eaton.com india mtl india, no.36, nehru street, off old mahabalipuram road sholinganallur, chennai - 600 119, india tel: + 91 (0) 44 24501660 /24501857 fax: + 91 (0) 44 24501463 e-mail: mtlindiasales@eaton.com italy mtl italia srl, via a. meucci, 10, i-20094 corsico (mi), italy tel: + 39 (0)2 61802011 fax: + 39 (0)2 61294560 e-mail: chmninfo@eaton.com ja p an cooper crouse-hinds japan kk, mt building 3f, 2-7-5 shiba daimon, minato-ku, tokyo, japan 105-0012 tel: + 81 (0)3 6430 3128 fax: + 81 (0)3 6430 3129 e-mail: mtl-jp@eaton.com benelux mtl instruments bv terheijdenseweg 465, 4825 bk breda the netherlands tel: +31 (0) 76 7505360 fax: +31 (0) 76 7505370 e-mail: mtl.benelux@eaton.com no rway norex as fekjan 7c, postboks 147, n-1378 nesbru, norway tel: +47 66 77 43 80 fax: +47 66 84 55 33 e-mail: info@norex.no singapore cooper crouse-hinds pte ltd no 2 serangoon north avenue 5, #06-01 fu yu building singapore 554911 tel: + 65 6 645 9888 fax: + 65 6 487 7997 e-mail: sales.mtlsing@eaton.com south k orea cooper crouse-hinds korea 12f, vision tower, 707-2 yeoksam-dong gangnam-gu, seoul 135-080, south korea. tel: +82 2 538 3481 fax: +82 2 538 3505 e-mail: mtl-korea@eaton.com united arab e mirates cooper industries/eaton corporation offce 205/206, 2nd floor sj towers, off. old airport road, abu dhabi, united arab emirates tel: +971 2 44 66 840 fax: +971 2 44 66 841 e-mail: mtlgulf@eaton.com united kingdom measurement technology limited, great marlings, butterfeld, luton beds lu2 8dl tel: + 44 (0)1582 723633 fax: + 44 (0)1582 422283 e-mail: mtlenquiry@eaton.com america s cooper crouse-hinds mtl inc. 3413 n. sam houston parkway w. suite 210, houston tx 77086, usa tel: + 1 281-571-8065 fax: + 1 281-571-8069 e-mail: mtl-us-info@eaton.com draft - 23 september 2014

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