行业组件数据 · 2026

RTD温度传感器

High-precision platinum-based temperature sensor for industrial chemical heating systems

技术定义与适配语境

典型 RTD温度传感器会按材料、尺寸公差、适配关系和失效风险在化学制造中评估。

A Resistance Temperature Detector (RTD) is a precision temperature sensor that utilizes the predictable change in electrical resistance of platinum wire with temperature variation. In automated chemical drum heating systems, it provides accurate temperature feedback for closed-loop control, ensuring precise thermal management of chemical processes.

查看完整规格查看制造来源

组件规格

定义

工作原理

RTDs operate on the principle that the electrical resistance of pure metals increases linearly with temperature. Platinum (Pt100 or Pt1000) is commonly used due to its stability and repeatability. The sensor's resistance is measured by passing a small constant current through it and calculating temperature based on standardized resistance-temperature curves (IEC 60751).

材料

Platinum wire (99.999% pure)ceramic or glass insulationstainless steel (316L or Inconel) protective sheathmineral-insulated cable with magnesium oxide filling

Accuracy

±0.1°C to ±0.5°C

Resistance

100Ω at 0°C (Pt100) or 1000Ω at 0°C (Pt1000)

Response Time

1-10 seconds (depending on sheath design)

Connection Type

M12 or PG7 threaded connection

Sheath Diameter

3mm to 6mm standard

Protection Class

IP67 or IP68

Temperature Range

-200°C to +850°C

Wire Configuration

2-wire, 3-wire, or 4-wire

标准

ISO 60751DIN EN 60751IEC 60751ASTM E1137

行业分类与别名

RTD温度传感器的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

自动化化学桶加热与温度控制系统

用于标准化学桶加热并维持化学品温度的自动化系统。

查看产品详情 ->

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Chemical attack on stainless steel sheath->Sensor drift or complete failure->Use Inconel or Hastelloy sheaths for aggressive chemicals, implement regular inspection schedule

Vibration from mixing equipment->Wire breakage or connection failure->Use vibration-resistant designs, secure cable routing, implement strain relief

Thermal cycling stress->Cracked insulation or connection failure->Use sensors rated for thermal cycling, implement gradual temperature changes

工业生态与工程逻辑

兼容对象

Automated Chemical Drum Heating Systems Batch Reactors Heat Exchangers Temperature Control Units

可替换件

Omega Engineering WIKA Endress+Hauser ABB Siemens Emerson

Chemical corrosion of sheath material

Mechanical damage during installation

Electrical noise interference

Calibration drift over time

Moisture ingress in connections

合规与检测

tolerance

Class A: ±(0.15 + 0.002|t|)°C, Class B: ±(0.3 + 0.005|t|)°C per IEC 60751

test method

Ice point (0°C) and boiling point (100°C) verification, comparison calibration against reference standard, resistance measurement at multiple temperature points

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

添加你的工厂

制造商列表用于前期研究和供应商能力理解，不代表认证、排名或交易担保。

采购评估维度

不是客户评论，也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档

4/5

制造能力

4/5

可检验性

5/5

供应商透明度

3/5

这些分值是采购评估维度示例，不代表真实客户评分、具体国家买家反馈或实时询盘。

常见问题

What is the difference between 2-wire, 3-wire, and 4-wire RTD configurations?

2-wire RTDs are simplest but include lead wire resistance in measurement. 3-wire RTDs compensate for lead resistance in balanced bridge circuits. 4-wire RTDs provide highest accuracy by completely eliminating lead resistance effects through separate current and voltage measurement paths.

How often should RTD sensors be calibrated in chemical heating applications?

Annual calibration is recommended for critical processes. More frequent verification (quarterly) may be required for applications with strict temperature control requirements or harsh chemical environments.

Can RTD sensors be used in explosive atmospheres?

Yes, with appropriate intrinsically safe barriers or explosion-proof housings certified for hazardous locations (ATEX, IECEx).

我可以直接联系工厂吗？

CNFX 是开放目录，不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。

CNFX Industrial Component Index · 化学制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类

本页用于结构化准备研究、RFQ 和供应商评估，不替代买方自己的供应商资质审查、标准核验和技术批准。