应用

• 机械制造、设备和容器建造

• 推进技术、液压

• 加热冷却电路，空调技术

功能特性

• 测量范围为-50 ... +200 °C (-58 ... +392 °F)

• 通过插头进行电气连接

• 输出信号4 … 20 mA或0 … 10 V

• 出厂配置

• 测量内芯可更换

描述

TFT35紧凑型温度变送器用于在-50 ... +200 °C (-58 ... +392 °F)范围内测量液体和气体介质的温度。

可用于10 MPa的压力条件。所有电气组件均有防溅水和抗震设计。

带固定螺纹接头或可调节活动卡套的集成式护套可直接安装到过程中。所有接液部件和箱体均由不锈钢制成。

箱体和可更换测量内芯通过滚花螺母拧紧。因此无需将仪表从过程中移开即可更换测量内芯。

集成式连接器可确保变送器的简单安装。

集成电子产品将测量元件随温度变化的电阻信号转换为线性单位信号。对于信号输出，可选4 ...20 mA和0 ...10 V。

Threaded thermometer, model TFT35 Output signals 4 ... 20 mA 0 ... 10 V Standard measuring ranges ■ -50 … +200 °C ■ -20 … +120 °C ■ 0 … 50 °C ■ 0 … 100 °C ■ 0 … 120 °C ■ 0 … 150 °C ■ 0 … 200 °C Special measuring ranges Start of measuring range -50 … +50 °C End of measuring range 0 … 200 °C Minimum span 50 K Accuracy Measuring element ±(0.3 + 0.005 * t) °C (class B per IEC 60751) Electronics ±0.5 % of measuring span Overall accuracy = accuracy of measuring element + accuracy of electronics Example: Medium temperature t = 150 °C, measuring range 0 … 200 °C Accuracy: ±(0.3 + 0.005 * 150) + 0.5/100 * 200 = ±2.05 °C Power supply UB DC 10 ... 30 V DC 12 ... 30 V Max. permissible residual ripple<10 % <10 error="" signalling="" sensor="" break="">20.5 mA > 10.5 V Sensor short-circuit<3.8 A 0 V

Thermowell Material Stainless steel Diameter ■ 6 mm ■ 8 mm Process connection Mounting thread, fixed Material: Stainless steel Compression fitting, sliding Material: Stainless steel Material of ferrule: Stainless steel ■ G ? ■ G ? ■ G ? ■ G ? ■ M14 x 1.5 ■ ? NPT ■ ? NPT ■ G ? ■ G ? ■ ? NPT ■ ? NPT Insertion length U1 25, 50, 75, 100, 150, 200, 250, 300, 400, 500 mm 100, 150, 200, 250, 300, 400, 500 mm Static operating pressure Thermowell diamter 6 mm: max. 50 bar Thermowell diamter 8 mm: max. 100 bar Max. 50 bar Neck tube In order to protect the electronics from unacceptably high temperatures at higher temperatures and unfavourable installation situations, it is possible to separate the probe case from the process connection by means of a neck tube. With the version with compression fitting, the neck tube is 40 mm as standard so that the desired insertion length can be realised. The version with fixed mounting thread is delivered, as standard, without a neck tube. Here, a neck tube of 50 mm or 100 mm can be selected optionally.