Thermocouple temperature sensor omnigrad S TSC-266

Transcription

1 Technicl informtion TI 248T/02/en Thermocouple temperture sensor omnigrd S TSC-266 Thermometer with EEx d certifiction Lmintion nipple nd/or 3 elements coupling Thermowell mde from metl br The Omnigrd S TSC 266 is n industril thermometer with thermocouple (type J, K), developed for the use in the chemicl, petrochemicl nd energy industries but suitble lso for other generic pplictions. The TSC 266 is supplied with EEx d certifiction, in complince with Europen stndrds EN nd EN 50018, nd is therefore suitble lso for industril res with potentilly explosive environments. The unit is usully fitted on pipes or tnks by mens of threded or flnged process connections. The TSC 266, which is vilble in severl stndrd versions nd different configurtions, cn lso be configured with specific dimensions nd chrcteristics depending on process requirements. Fetures nd benefits Severl types of process connections Thermowell vilble in severl mterils Mteril certifiction in ccordnce with 3.1.B, NACE or PMI Trnsmitters with 2-wire technology (PCP ma, HART, PROFIBUS- PA ) Customisble immersion length Thermowells complint with stndrd ENI nd Montedison, mde of br, lso of significnt length Hed/thermowell connection fitting in SS 304 (nipple + 3 elements coupling + nipple) Explosion-proof enclosure with EEx d certifiction nd lmintion coupling on the insert Minerl oxide replceble insert (MgO) Thermocouple sensing element type J or K

2 omnigrd S TSC 266 Ares of ppliction The TSC 266 cn lso be used in generic industril pplictions but is prticulrly suitble for EEx d certified pplictions like: chemicl industry petrochemicl industry energy industry gs processing industry. Function nd system design Mesuring principle Equipment rchitecture The thermocouple thermometer's sensing element consists of two metl wires tht re homogenous but different one from the other nd insulted long their entire length. The two wires re welded together t one end, known s the mesurement or hot junction. The other end, where the wires re free, is known s the cold or reference junction nd is connected to electromotive force mesurement where the force is generted by the different thermoelectric power of ech of the thermocouple's wires if there is temperture difference between the hot joint (T 1 ) nd the cold joint (Seebeck effect). The cold junction hs to be compensted with reference to the temperture of 0 C (T 0 ). The function tht links the electromotive force to the tempertures T 1 nd T 0 is curve whose chrcteristics depend on the mterils used in the construction of the thermcouple. Some thermocouples curves, nd prticulrly those most relible for the purposes of industril redings, re those complint with stndrds DIN EN nd ANSI MC96.1. The TSC 266 thermocouple thermometer comprises: n EEx d certified luminium housing n insert with thermocouple (type J or K), insulted with minerl oxide (MgO), with oversheth nd terminls on cermic support lmintion nipple nd 3 elements coupling thermowell mde from br with threded or flnged process connection. Dimensions re determined s follows (fig. 1): N = length of the hed/thermowell connection fitting A = totl length of the thermowell U = immersion length of the thermowell T = length of the extension neck of the thermowell ØDf = dimeter of the internl hole of the thermowell ØD1 = dimeter of the extension neck of the thermowell ØQ1 = dimeter of the re below the thermowell process connection ØQ2 = dimeter of the lower side of the thermowell. N ØD1 T A ØQ1 T A U N N ØD1 ØD1 T ØQ1 A ØQ1 ØDf ØQ2 Extension type L U ØDf ØQ2 Extension type LUN U ØDf ØQ2 Extension type LUC TST266_G_dd_07_en_03 Fig. 1: Generl informtion on sizes 2 Endress+Huser

3 omnigrd S TSC 266 Mteril Weight Housing: treted nd pinted luminium lloy. Mesuring insert: externl sheth in SS 316/1.4401, Inconel 600/ Hed/thermowell connection: SS 304/ Thermowell: SS 316/1.4401, SS 316L/1.4404, Hstelloy C276/2.4819, Monel 400/2.4360, Inconel 600/ From 1 to 5 Kg for stndrd options. Electronics The required type of output signl cn be obtined by choosing the correct hed-mounted trnsmitter. Endress+Huser supplies "stte-of-the-rt" trnsmitters (the itemp series) built in 2-wire technology nd with 4 20 ma output signl, HART or PROFIBUS-PA. All trnsmitters cn be esily progrmmed using personl computer nd the RedWin 2000 public domin softwre (for trnsmitters 4 20 ma nd HART ) or the Commuwin II softwre (for PROFIBUS-PA trnsmitters). HART trnsmitters cn lso be progrmmed with the hnd-held operting module DXR 275 (Universl HART Communictor). For more detiled informtion on the trnsmitters, see the relted documenttion (codes TI t the end of this document). If no hed trnsmitter is used, it is lso possible to connect the thermocouple to remote trnsmitter DIN-ril. Performnce Operting conditions Ambient temperture Metl hed with terminl block nd without trnsmitter Metl hed without terminl block nd with trnsmitter Process temperture Sme of mesurement rnge (see below) C C Mximum process pressure The pressure vlues tht the thermowell cn withstnd t different tempertures, re shown in the following grphs, which cn be used for some reference configurtions: Thermowell with dimeter D1 = 35 mm (TA 557, option "6") MAEWP (br) Temperture ( C) Threded, SS 316 Threded, SS 316L Flnged 300, SS 316 Flnged 600, SS 316 MAEWP = mximum llowble externl working pressure Vlid for: Q1 = 25 mm or superior Q2 = 18 mm or superior Df = 7 mmor superior (mx flow rte = 20 m/s for immersion depth 200 mm) Grfic_g_gd_05_en_08 Endress+Huser 3

4 omnigrd S TSC 266 Thermowell with dimeter D1 = 30 mm (TA 550, option "1") MAEWP (br) Temperture ( C) Threded, SS 316 Threded, SS 316L Flnged 300, SS 316 Flnged 600, SS 316 MAEWP = mximum llowble externl working pressure Vlid for: Q1 = 20 mm or superior Q2 = 14 mm or superior Df = 7 mmor superior (mx flow rte = 15 m/s for immersion depth 200 mm) Grfic_g_gd_05_en_09 Fig. 2: Pressure / Temperture rtings Mximum flow rte The mximum flow rte tolerted by the thermowell decreses s the immersion length increses (U). The methods used to verify the resistnce of thermowells with pressure, temperture nd flow rte dt cn lso be complint with those indicted in stndrd ASME/ANSI PTC For ssistnce on resistnce verifictions, plese contct the E+H Customer Service Deprtment. Shock nd vibrtion resistnce According to DIN EN g di pek / Hz Accurcy The tolernces set by the stndrd DIN EN re the following: Type Stndrd tolernce (DIN EN 60584) Specil tolernce (DIN EN 60584) Clss Mx. devition Clss Mx. devition J (Fe-CuNi) 2 +/-2.5 C ( C) +/ t ( C) 1 +/-1.5 C ( C) +/ t ( C) K (NiCr-Ni) 2 +/-2.5 C ( C) +/ t ( C) 1 +/-1.5 C ( C) +/ t ( C) Note! (ItI=bsolute temperture vlue in C) Trnsmitter mximum error See the corresponding documenttion (codes re shown t the end of this document). Mesurement rnge Type J sensor C Type K sensor C Response time Tests in wter t 0.4 m/s (ccording to DIN EN 60751; temperture vrition from 23 to 33 C), only on the TC thermometer insert: t s t 90 7 s Insultion Insultion resistnce between terminls nd probe sheth > 1 GΩ t 25 C (in ccordnce with DIN EN 60584, test voltge 500 Vdc) > 5 MΩ t 500 C 4 Endress+Huser

5 omnigrd S TSC 266 Instlltion The Omnigrd S TSC 266 cn be instlled on pipes or tnks by mens of threded or flnged connections. The counterprts for process connections nd gskets, when required, re not supplied with the sensor nd must be purchsed seprtely by the user. The immersion length must tke into ccount ll the prmeters of the thermometer nd thermowell in the process to mesure. If the immersion is too low, n error my be generted in the temperture recorded due to the lower temperture of the process fluid ner to the wlls nd het trnsfer, which tkes plce through the sensor stem. The incidence of such n error cn be not negligible if there is big difference between the process temperture nd the mbient temperture. To prevent mesuring errors of this kind, it is dvisble to use thermowells with smll dimeter nd n immersion length (U) of t lest mm. In smll section ducts the tubing's xis must be reched nd preferbly slightly exceeded by the tip of the probe (see fig. 3A-3C). Insultion of the outer prt of the sensor reduces the effect produced by low immersion. Alterntively, it is lso possible to dopt tilted instlltion (see fig. 3B-3D). In processes involving gses t very high temperture (> C), where rdition effects re importnt, the immersion length my be secondry problem. As fr s corrosion is concerned, the bse mteril for prts in contct with the fluid is ble to withstnd the most common corrosive gents up to the highest tempertures. Even the nipples nd 3 elements coupling supplied with the connection fitting of the instrument re ble to withstnd wide rnge of ggressive substnces. For further informtion on specific pplictions, contct the E+H Customer Service Deprtment. Disssembled components of the sensors must be ressembled with the recommended clmping torques in order to ensure the pproprite IP protection clss within the sensor-housing coupling. A U C D B TST264_g_id_07_xx_02 Fig. 3: Instlltion on pipes nd tnks by mens of flnged or threded process connections Endress+Huser 5

6 omnigrd S TSC 266 System components Housing The protection housing, commonly referred to s "connection hed" is used to contin nd protect the terminl block or the trnsmitter nd to join the electric connections to the mechnicl component. The hed used for the TSC 266 is complint with DIN (form B) nd EN 50014/50018 stndrds (EEx certifiction for explosion-proof instruments). The mtching of the hed with the extension below the hed nd the cover (threded) ensures n IP66 clss of protection. The hed lso hs chin to connect the body to the cover, which fcilittes the use of the instrument during the mintennce on systems. The single or double electricl cble input hs M20x1.5, 1/2 NPT or 3/4 NPT threding. Hed trnsmitter Avilble hed trnsmitters include (see lso section "Electronics"): TMT 181 PCP 4 20 ma TMT 182 Smrt HART TMT 184 PROFIBUS-PA. The TMT 181 is PC progrmmble trnsmitter. The TMT 182 output consists of 4 20 ma nd HART superimposed signls. Ø33 Ø44 1 Ø Ø 6.5 Ø Ø TMT181_g_gd_06_IT_02 Fig. 4: TMT In the TMT 184, with PROFIBUS-PA output signl, the communiction ddress cn be set vi softwre or by mens of mechnicl dip-switch (the configurtion must be specified by the customer in order phse). Ø33 Ø44 1 Ø Ø Ø 6.5 Ø TMT184_g_gd_06_IT_01 Fig. 5: TMT 184 Extension neck The extension neck is the prt between the thermowell nd the trnsmitter housing. To prevent the process temperture from overheting the re of the trnsmitter, specil extension "neck" is inserted between the sensor, exposed to high temperture processes, nd the trnsmitter. This enbles to limit the operting temperture of the trnsmitter. It normlly consists of hydrulic connections (nipples nd/or joints) tht re suitble to llow the djustment of the sensor to the thermowell. The stndrd lengths (N) nd the versions of the extension neck cn be selected mong the following options: 6 Endress+Huser

7 omnigrd S TSC mm (only 1/2 NPT threded nipple, type L) 148 mm (nipple+3 elements coupling+nipple, type LUN) 148 mm (nipple+coupling+nipple, tipe LCN). Threded thermowell connections Type Thred Length N (mm) C (mm) Detil Type of neck 52 L* ncklxx_g_gd_15_xx_01 Mle 1/2 NPT LUN ncklun_g_gd_15_xx_ ConNPT_G_dd_09_XX_01 LCN ncklcn_g_gd_15_xx_01 " Attention! * This neck is vilble only for 1/2 NPT threds "LUN" connections enble to orient the trnsmitter housing. As illustrted by the chrt in figure 6, the length of the sensor + thermowell extension my influence the temperture in the hed. It is necessry tht this temperture is kept within the limit vlues defined in the prgrph "Operting conditions". In ddition to the stndrd versions listed bove, it is lso possible to order the extension neck by specifying the desired length (see Sles structure chrt). 60 C 50 Hed heting bove mbient Extension neck length Process temperture mm 800 C 620 C 430 C 250 C Grfic_g_gd_05_en_19 Fig. 6: Heting of the hed cused by the process temperture Process connection Stndrd process connections differ in tht they cn be threded or flnged: threded connections in the sme mteril of the thermowell: 3/4 NPT, 1 NPT flnged connection, in SS 316 or A 105: slip-on 1 ANSI 150, 300, 600 RF slip-on 1 1/2 ANSI 150, 300, 600 RF slip-on 2 ANSI 300, 600 RF. Flnges, with stndrd finishing AARH, re bolted nd welded to the rer of the thermowell neck. On request, it is possible to select lso different mterils, finishings nd connections. Endress+Huser 7

8 omnigrd S TSC 266 Thermowell The thermowell is the component of the TSC 266 tht must tolerte most of the mechnicl stress trnsmitted by the process. It is mde from round br nd supplied in different mterils nd dimensions, ccording the chemicl/physicl chrcteristics of the process: corrosion, temperture, pressure nd speed of the fluid. The thermowell consists of three prts: the extension neck (indicted s T), usully with cylindricl shpe (nd stndrd dimeters of 30 or 35 mm nd lengths of 70/100 mm), represents the externl prt of the thermowell nd is connected with the hed of the probe by mens of neck (usully nipple) the immersed prt (identified s U), with conicl or cylindricl shpe (the stndrd dimeter of the re below the fitting is 20 or 25 mm), is situted next to the process connection in direct contct with the process fluid the threded or flnged process connection represents the prt inserted between the extension nd the immersed prt nd gurntees the mechnicl nd hydrulic seling of the thermometer nd plnt. The externl finishing of the thermowell stem is vilble with stndrd vlue of R < 1.6 µm (different finishes re vilble on request). WELLxx_g_dd_13_en_02 Fig. 7: Thermowell with threded or flnged process connection # Wrning! The totl stndrd length (A) of the thermowell must never exceed 1300 mm (tht represents the mximum drilling limit; higher lengths re vilble only on request). Probe The mesuring probe of sensor TSC 266 consists of 6 mm dimeter thermometric insert (TEC 300) whose stem is mde in compressed MgO with SS 316/ or Inconel 600/ (lso clled minerl insulted cble). To improve het trnsmission, the insert tip is pushed, by mens of spring system, to the inside bottom of the thermowell. The insert is lwys supplied with lmintion nipple nd/or 3 elements coupling. In cse of spre prts, length ML must be clculted depending on the thermowell totl length, using the ½ NPT M formul: ML = A-11. ½ NPT M ½ NPT M ML Type L Ø6 ML Ø6 Type LUN ML Ø6 Type LCN TET300_g_gd_05_en_06 1 x TC 2 x TC WIRING_g_gd_06_it_02 Fig. 8: Probe, dimensions nd internl wiring 8 Endress+Huser

9 omnigrd S TSC 266 Certifictes & Approvls Ex pprovl Certificte CESI 03 ATEX 114, 1/2 GD IIC EEx d T5/T6. PED pprovl The Pressure Equipment Directive (97/23/CE) is respected. As prgrph 2.1 of Article 1 is not pplicble to this kind of instrument, the mrking 4 is not mndtory for TSC 266 models used for generic pplictions. Mteril certifiction The mteril certifiction cn be selected directly in the sles structure nd is vilble in different typologies. Certificte 3.1.B includes sttement tht contins ll the documents relted to the mteril employed for the mnufcture of ech thermowell, long with mrking, consisting in code punched on the thermowell, tht gurntees the trcebility of the product. In the sles structure re lso vilble other certifictions relted to mterils which integrte the 3.1.B: 3.1.C certifiction NACE MR 0175 certifiction PMI certifiction. Further detils Mintennce Delivery time The TSC 266 does not require specific mintennce. For smll orders (5 10 units) nd stndrd options, the delivery time is 25 working dys. Endress+Huser 9

10 omnigrd S TSC 266 Ordering informtion Sles structure TSC 266 Neck length N, mteril, type of connection 1 52 mm SS 304 type L 1/2 NPT-M mm SS 304 type LUN 1/2 NPT-M mm SS 304 type LCN 1/2 NPT-M 9 Extension length to specify TC type, sheth mteril, stndrd, hot junction A 1xTC - K, Inconel 600, IEC 584 cl.2, grounded C 1xTC - J, AISI 316, IEC 584 cl.2, grounded E 1xTC - K, Inconel 600, ANSI MC96.1, grounded G 1xTC - J, AISI 316, ANSI MC96.1, grounded 1 1xTC - K, Inconel 600, IEC 584 cl.2, isolted 3 1xTC - J, AISI 316, IEC 584 cl.2, isolted 5 1xTC - K, Inconel 600, ANSI MC96.1, isolted 7 1xTC - J, AISI 316, ANSI MC96.1, isolted Y Specil version Type of terminl 2 Flying leds 3 Terminl block Thermowell dimensions: ext. T, dim. D1, Df, Q1, Q2, finishing 1 70 mm = T, D1 = 30 mm, Df = 7 mm, Q1 = 20 mm, Q2 = 14 mm, finishing 1,6 micron mm = T, D1 = 35 mm, Df = 7 mm, Q1 = 25 mm, Q2 = 18 mm, finishing 1,6 micron 9... mm = T, D1 =... mm, Df =... mm, Q1=... mm, Q2 =... mm, finishing to specify Immersion length U X... mm immersion length to specify Y... mm specil immersion length Thermowell mteril C Thermowell mteril AISI W D Thermowell mteril AISI 316L - W H Thermowell mteril Hstelloy C 276- W K Thermowell mteril Inconel W M Thermowell mteril Monel W Y Thermowell mteril to specify Process connection 1 Threded 3/4 NPT-M 2 Threded 1 NPT-M 3 Slip-on 1 ANSI 150 RF A Slip-on 1 ANSI 150 RF SS Slip-on 1 ANSI 300 RF A Slip-on 1 ANSI 300 RF SS Slip-on 1 ANSI 600 RF A Slip-on 1 ANSI 600 RF SS 316 A Slip-on 1 1/2 ANSI 150 RF A 105 B Slip-on 1 1/2 ANSI 150 RF SS 316 C Slip-on 1 1/2 ANSI 300 RF A 105 D Slip-on 1 1/2 ANSI 300 RF SS 316 E Slip-on 1 1/2 ANSI 600 RF A 105 F Slip-on 1 1/2 ANSI 600 RF SS 316 Q Slip-on 2 ANSI 300 RF A 105 R Slip-on 2 ANSI 300 RF SS 316 S Slip-on 2 ANSI 600 RF A 105 T Slip-on 2 ANSI 600 RF SS Threded 3/4 NPT-M 2 Threded 1 NPT-M Y Process connection to specify 10 Endress+Huser

11 omnigrd S TSC 266 Flnge finishing 1 Finishing not requested 2 Stndrd finishing AARH 9 Finishing to specify Certifictions A Not requested G 3.1.B EN10204, with stmping for wetted prts E 3.1.B EN10204, + NACE MR 0175 C 3.1.C EN10204 F 3.1.B EN10204, + PMI Y Certifiction to specify Hed cble entry A Hed cble entry: single 1/2 NPT C Hed cble entry: double 1/2 NPT B Hed cble entry: single 3/4 NPT D Hed cble entry: double 3/4 NPT E Hed cble entry: single M20x1.5 F Hed cble entry: double M20x1.5 Built-in hed trnsmitter 0 Without built-in hed trnsmitter P 2-wire trnsmitter PCP TMT 181-A, glvniclly insulted, djustble rnge from...to... C R 2-wire trnsmitter HART TMT182-A, glvniclly insulted, djustble rnge from...to... C S 2-wire trnsmitter PROFIBUS-PA, TMT184-A 1 Built-in hed trnsmitter THT1, to be ordered seprtely TSC266- Complete order code Endress+Huser 11

12 Supplementry documenttion Generl technicl informtion on TSC thermometers Temperture trnsmitter - itemp PCP TMT 181 Temperture trnsmitter - itemp HART TMT 182 Temperture trnsmitter - itemp PA TMT 184 Thermocouple insert for EEx-d. Omniset TEC 300 Sfety instructions for use in hzrdous res E+H Lbortory Clibrtion certifictions for industril thermometers. RTD nd thermocouples TI 090T/02/en TI 070R/09/en TI 078R/09/en TI 079R/09/en TI 226T/02/en XA 007T/02/z1 TI 236T/02/en Subject to modifiction Endress+Huser Gmbh+Co. KG Instruments Interntionl P.O. Box 2222 Colmrer Str. 6 D Weil m Rhein Germny Tel Fx info@ii.endress.com cl/05 TI 248T/02/en/ FM+SGML 6.0