一體化RTD熱電阻，衛(wèi)生型結(jié)構(gòu)設(shè)計(jì)

具有多種過(guò)程連接形式和延長(zhǎng)頸類(lèi)型

• 高靈活性：模塊化結(jié)構(gòu)設(shè)計(jì)、標(biāo)準(zhǔn)接線(xiàn)端子塊和用戶(hù)自定義熱電阻插入深度
• 提供絕大多數(shù)常見(jiàn)的EHEDG認(rèn)證衛(wèi)生型過(guò)程連接，儀表的結(jié)構(gòu)設(shè)計(jì)符合3A衛(wèi)生型標(biāo)準(zhǔn)
• 高精度測(cè)量：采用符合IEC 60751 (或更高等級(jí))的Pt100溫度傳感器

• 可滿(mǎn)足防爆區(qū)中的測(cè)量要求：
  - 本安型儀表(Ex ia)
  - 無(wú)火花 (Ex nA)

一體化溫度變送器

相比于不經(jīng)過(guò)溫度變送器，而直接接線(xiàn)的測(cè)量方式，Endress+Hauser的一體式溫度變送器具有更高的測(cè)量精度和更高的測(cè)量可靠性。根據(jù)實(shí)際應(yīng)用工況，用戶(hù)可以自由選擇下列信號(hào)輸出模式和通信方式：

• 4...20 mA模擬輸出
• HART^®
• PROFIBUS^® PA
• FF基金會(huì)現(xiàn)場(chǎng)總線(xiàn)

• 可用于食品、制藥等衛(wèi)生領(lǐng)域和精細(xì)化工行業(yè)的測(cè)量

• 溫度測(cè)量范圍: -50...250 °C

• 承壓能力可達(dá) 40 bar

• 防護(hù)等級(jí)可達(dá) IP 68

  技術(shù)參數(shù)

  Thermometer
   

  測(cè)量原理	Resistance Temperature Detector
  Characteristic / Application	metric style modular temperature assembly hygienic design hygienic process connection with neck
  Terminal head	TA20A - aluminium - cover with screws TA20B - plastics - screw cover TA20D - aluminium - hinged cover high TA20J - SS - deep-drawn w. or w/o. display TA20R - SS - machined w. screw cover TA20W - aluminium - cover w. snap fit TA21E - aluminium - screw cover w. chain
  Thermowell / protection tube	without (not intended to use with thermowell)
  Insert / probe	mineral insulated (MI), flexible
  Outer diameter protection tube	6,0 mm (0,24'') 8,0 mm (0,31'')
  Max. immersion length on request	up to 1.000,00 mm (39,37'')
  Material protection tube/thermowell	1.4435 (316L)
  Process connection	hygienic: conical sealing system G1/2" (metal) conical sealing system M12x1,5 (metal) clamp connections acc. to ISO 2852 / DIN 32676 clamp connections TRI-Clamp / Micro-Clamp screwed pipe joint acc. to DIN 11851 screwed pipe joint acc. to DIN 11864-1 Varivent SMS 1147/8 G1" Liquiphant type M Ingold welded (cylindircal) welded (spherical)
  Tip shape	straight reduced
  Surface roughness Ra	0,4 μm (15,7 μin.) 0,8 μm (31,5 μin.)
  Operating temperature range	PT 100: -50 °C ...200 °C (-58 °F ...392 °F)
  Max. process pressure (static)	at 20 °C: 50 bar (725 psi)
  Accuracy	class A acc. to IEC 60751 1/3 DIN class B acc. to IEC 60751
  Response time	depending on configuration t50 = 5 s t90 = 13 s
  Integration head transmitter	yes (4 … 20 mA; HART; PROFIBUS PA; FOUNDATION FIELDBUS)
  Ex - approvals	ATEX
  Certification	Gost Metrology FDA EHEDG 3A SIL (transmitter only)