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卫生型过程连接，仪表的结构设计符合3A卫生型标准
测量：采用符合IEC 60751 (A级或高等级)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高的测量精度和高的测量可靠性。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
| 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" ( conical sealing system M12x1,5 ( 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) |
|
