一体化RTD热电阻，卫生型结构设计

具有多种过程连接形式和延长颈类型

• 高灵活性：模块化结构设计、标准接线端子块和用户自定义热电阻插入深度
• 提供绝大多数常见的EHEDG认证卫生型过程连接，仪表的结构设计符合3A卫生型标准
• 高精度测量：采用符合IEC 60751 (A级或更高等级)的Pt100温度传感器

• 可满足防爆区中的测量要求：
  - 本安型仪表(Ex ia)
  - 无火花 (Ex nA)

一体化温度变送器

相比于不经过温度变送器，而直接接线的测量方式，Endress+Hauser的一体式温度变送器具有更高的测量精度和更高的测量可靠性。根据实际应用工况，用户可以自由选择下列信号输出模式和通信方式：

• 4...20 mA模拟输出
• HART^®
• PROFIBUS^® PA
• FF基金会现场总线

• 可用于食品、制药等卫生领域和精细化工行业的测量

• 温度测量范围: -50...250 °C

• 承压能力可达 40 bar

• 防护等级可达 IP 68

  技术参数

  Thermometer
   

  测量原理	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)