一、什么是高温熔体压力传感？/1. What is a Melt Pressure Sensor?

在挤出、纺丝、高分子合成等高分子工业核心生产场景中，200℃-400℃的高温熔体工况，始终是行业压力测量的核心难题。这类生产环境兼具高温高热、物料黏稠、介质易腐蚀等多重恶劣特性，对测量设备的耐受度、精准度与稳定性提出极高要求。普通压力测量设备难以适配极端高温工况，长期运行极易出现数据漂移、测量精度衰减、设备老化损坏、使用寿命大幅缩短等各类问题，直接导致生产线工艺参数波动、产品品质不稳定、设备故障频发，严重影响高分子生产流程的连续性与标准化作业。

高温熔体压力传感器是专为适配高温熔体严苛工况量身研发的核心测控设备，可精准捕捉高温熔体运行过程中的细微压力波动，将物理压力信号高效转化为标准化电信号，实现生产线压力数据的实时、持续、精准监测。设备一方面可实时预警超压异常，全方位防护生产设备，规避高温工况下超压运行引发的停机、故障、安全隐患；另一方面可精准锁定工艺参数，稳定高温生产工艺一致性，大幅降低因高温测压不准、数据波动导致的次品率、返工率，全面助力高分子智能制造产线实现高效、稳定、低耗、高品质运行，是高温熔体生产场景不可或缺的核心测控元器件。

针对行业普遍存在的高温下测压难的问题，GRAEFF（格拉夫）深耕传感技术领域，依托NTX多元合金填充技术、AI智能化零温漂技术、NFM无介质传导技术三大核心技术，针对性解决高温工况测量痛点。同时品牌打造完善的G系列产品矩阵，可适配通用量产、高端洁净、防爆化工、大管道法兰安装等各类生产场景，覆盖绝大多数熔体压力测量需求。

In core polymer manufacturing processes including extrusion, spinning and polymer synthesis, melt operating environments ranging from 200℃ to 400℃ have long been a major bottleneck for industrial pressure measurement. Featuring intense heat, viscous raw materials and corrosive media, such harsh conditions impose stringent standards for measuring equipment in terms of durability, precision and stability. Conventional pressure measuring instruments cannot withstand such extreme thermal environments. Prolonged operation commonly triggers data drift, declining measurement accuracy, equipment deterioration and drastically shortened service life. These defects lead to fluctuating process parameters, inconsistent product quality and frequent equipment breakdowns, which severely disrupt continuous and standardized polymer production.

Melt pressure sensors are core measurement & control devices custom-developed for severe melt operating conditions. They accurately detect subtle pressure variations inside melts and convert physical pressure signals into standardized electrical signals to deliver real-time, uninterrupted and precise pressure monitoring for production lines. For one thing, the sensors send instant alerts for overpressure risks to fully protect production equipment and prevent shutdowns, malfunctions and safety hazards arising from overloaded operation under high temperatures. For another, they maintain stable process parameters and consistent production performance, greatly cutting defective and rework rates caused by inaccurate, erratic pressure readings in hot environments. This facilitates efficient, stable, low-consumption and high-quality operation of smart polymer production lines, making the sensors essential core measuring and control components for melt manufacturing processes.

To tackle the prevalent industry challenge of pressure measurement at high temperatures, GRAEFF has devoted years to sensor technology development. Supported by three proprietary core technologies — NTX multi-alloy filling technology, AI intelligent zero thermal drift technology and NFM medium-free transmission technology — we deliver targeted solutions to measurement challenges under high-temperature conditions. Furthermore, our comprehensive G-series product portfolio fits a wide range of application scenarios, such as general mass production, high-end clean production, explosion-proof chemical processing and large pipeline flange mounting, covering nearly all melt pressure measurement demands across industries.

二、熔体压力传感器的工作原理/Working Principle of Melt Pressure Sensors

很多人认为熔体传感技术原理复杂，实则核心逻辑清晰易懂。在生产过程中，高温熔体产生的压力会直接作用于传感器前端感应膜片，使膜片产生与压力成正比的微小形变。

膜片形变会同步改变设备内部应变电阻的阻值，内置高精度电路可实时捕捉阻值变化，通过惠斯通电桥精准换算出真实压力数值，最终输出4–20mA、0–10V、mV/V等工业通用标准信号，实现熔体压力的可视化、智能化精准测控。

Many think melt sensor technology works in a complicated way, but its core principle is easy to understand. During production, pressure from melt acts directly on the front sensing diaphragm of the sensor, causing tiny deformation proportional to the pressure.

Such deformation changes the resistance of internal strain gauges. The built-in high-precision circuit captures resistance variations in real time, calculates the actual pressure via Wheatstone bridge, and outputs standard industrial signals like 4–20mA, 0–10V and mV/V to realize visual, intelligent and precise melt pressure measurement and control

惠斯通电桥核心工作逻辑/Working Logic of the Wheatstone Bridge

电桥由四组精密应变电阻构成闭环回路，包含一组压力敏感电阻与三组固定基准电阻。无压力作用时，回路电流保持平衡状态；当熔体压力引发膜片形变、改变电阻阻值后，电桥平衡状态被打破，输出精准差值电压，再经过电路放大、换算，即可得出精准的熔体压力数据。

The bridge forms a closed loop with four precision strain resistors: one pressure-sensitive resistor and three fixed reference resistors. The loop remains current-balanced under no pressure. Once melt pressure deforms the diaphragm and alters resistance values, the bridge balance breaks to output an accurate differential voltage, which is then amplified and converted by circuits to obtain precise melt pressure data.

三、GRAEFF（格拉夫）高温熔体压力传感器三大核心技术/Three Core Technologies of GRAEFF Melt Pressure Sensors

1. NTX多元合金填充技术/NTX Multi-Alloy Filling Technology

采用无汞液态多元合金作为压力传导介质，可高度还原传递熔体真实压力。依托介质优异的低热膨胀特性，有效改善传统硅油高温挥发碳化、水银介质重金属污染的常见缺陷。

该技术加持下，设备可长期适配300℃高温工况，信号输出稳定无异常，整机测量精度可达±0.5% FSO。搭配专属智能补偿电路，可进一步抑制温度偏移问题，充分满足挤出、橡塑、芳纶等领域的精密熔体测控需求，适配长期连续生产场景。

Mercury-free liquid multi-alloy serves as the pressure transmission medium to accurately transfer actual melt pressure. Its low thermal expansion property avoids common drawbacks of traditional silicone oil such as high-temperature volatilization and carbonization, as well as heavy metal pollution caused by mercury medium.

With this technology, the device works stably under long-term working conditions up to 300℃ with reliable signal output, delivering a measurement accuracy of ±0.5% FSO. Equipped with a dedicated intelligent compensation circuit to further restrain temperature drift, it meets precise melt measurement and control requirements in extrusion, rubber, aramid and other industries for long-term continuous production.

2. AI智能化零温漂技术/AI Intelligent Zero-Temperature-Drift Technology

搭载内置测温采集单元与嵌入式智能运算芯片，依托多温区、多压力点全域标定数据库与自研 AI 解耦算法，可实时识别由芯体应变电阻、NTX 多元合金填充介质、金属膜片引发的零点与灵敏度耦合温漂，并对输出信号进行动态自动修正。不同于传统单一硬件静态补偿仅能小范围抵消测量偏移，该技术可在宽温度区间内动态抑制温度漂移，搭配隔热散热结构协同运行，设备在长期 400℃高温工况下，测量精度可稳定达到 ±0.5% FSO，有效降低现场反复校零的操作频次，适配挤出、芳纶、锂电等高精密熔体连续生产测控场景。

Equipped with built-in temperature sensors and an embedded intelligent computing chip, it adopts a full-range calibration database covering multiple temperatures and pressure points as well as self-developed AI decoupling algorithm to identify the coupled zero and sensitivity temperature drift caused by core strain resistors, NTX multi-alloy filling medium and metal diaphragms, and dynamically correct output signals automatically.

Unlike traditional single hardware static compensation that only offsets measurement deviation within a narrow range, this technology dynamically suppresses temperature drift across a wide temperature range. Combined with heat insulation and dissipation structures, it maintains stable measurement accuracy of ±0.5% FSO under long-term working conditions up to 400℃, reducing frequent on-site zero calibration. It is ideal for high-precision continuous melt measurement and control in extrusion, aramid and lithium battery industries.

3. NFM无介质传导技术/NFM Medium-Free Conduction Technology

舍弃硅油、NTX 液态合金等填充传导介质，采用一体化金属弹性传力结构实现压力直传，从根源消除介质渗漏、高温碳化、介质热膨胀漂移等隐患；熔体压力经哈氏合金膜片直接刚性传递至传感芯体惠斯通电桥，无介质损耗、压力传递响应更快，可在 400℃长期高温工况稳定运行，整机测量精度可达 ±0.5% FSO，洁净无介质污染，适配食品、制药、芳纶、锂电等超高洁净等级熔体生产场景，大幅降低后期维护与泄漏报废风险。

Abandoning filling media like silicone oil and NTX liquid alloy, the integrated metal elastic force-transmitting structure enables direct pressure transfer, fundamentally eliminating hidden troubles such as medium leakage, high-temperature carbonization and thermal expansion drift.

Melt pressure is rigidly transmitted through the Hastelloy diaphragm directly to the Wheatstone bridge of the sensing core, featuring no medium loss and faster pressure response. It operates stably for long-term use at up to 400℃ with a measurement accuracy of ±0.5% FSO. Free from medium contamination, it suits ultra-clean melt production in food, pharmaceutical, aramid and lithium battery industries, greatly lowering later maintenance and scrapping risks caused by leakage.

四、G系列熔体传感器/变送器/G Series Melt Sensors / Transmitters

GEMP系列熔体压力传感器/变送器/GEMP Series Melt Pressure Sensors / Transmitters

搭载NFM无介质技术，性能稳定可靠。产品支持多种安装螺纹规格，输出信号配置齐全，符合工业通用标准；防护等级IP65，可在严苛工况下完成熔体压力精准测量，为食品、制药等行业提供适用的测量方案。

Adopting NFM dielectric-free technology, this series delivers stable and reliable performance. It supports various mounting thread specifications and complete output signals complying with universal industrial standards. With an IP65 protection rating, it achieves accurate melt pressure measurement under harsh working conditions, offering reliable measurement solutions for food, pharmaceutical and other industries.

GINS系列熔体压力传感器/变送器/GINS Series Melt Pressure Sensors / Transmitters

主体由不锈钢制成，其他材料由特殊工艺制造并通过高强度测试。使用特殊涂层保护膜片，使其不受黏度和摩擦性较大物质的影响。本系列产品使用寿命长、测量性能精确、受温度漂移的影响更小更稳定。

The main body is made of stainless steel, while other components are fabricated via special processes and have passed high-strength tests. The diaphragm is protected by a special coating, shielding it from substances with high viscosity and friction. This series features a long service life, precise measurement performance, minimal temperature drift and excellent operational stability.

GMP系列熔体压力传感器/变送器/GMP Series Melt Pressure Sensors / Transmitters

一种精确的测量设备，采用高性能核心元件，抗干扰性更强的模拟电路设计，350°C高温下标定，可获得其高测量精度。

This precision measuring device adopts high-performance core components and anti-interference analog circuits. Calibrated at 350°C, it delivers superior measurement accuracy.

GHP系列熔体压力传感器/变送器/GHP Series Melt Pressure Sensors / Transmitters

一种精确的测量设备，采用高性能核心元件，抗干扰性更强的模拟电路设计，350°C高温下标定，可获得其高测量精度。

This precision measuring device adopts high-performance core components and anti-interference analog circuits. Calibrated at 350°C, it delivers superior measurement accuracy.

GCM系列熔体压力传感器/变送器/GCM Series Melt Pressure Sensors / Transmitters

其主体由不锈钢制成，其他材料由特殊工艺制造并通过高强度测试。使用钛化合物特殊涂层保护膜片，使其不受黏度和摩擦性较大物质的影响。本系列产品使用寿命长、测量性能精确、受温度漂移的影响更小更稳定。因采用NTX环保合金介质填充技术，所以该系列产品可用于食品和制药领域等。

Constructed from stainless steel, its components are produced by special processes and have passed high-strength tests. A special titanium compound coating shields the diaphragm against high-viscosity and abrasive substances. This series offers long service life, precise measurement, low temperature drift and stable performance. Adopting eco-friendly NTX alloy filling technology, it is applicable to food, pharmaceutical and other industries.

GM系列熔体压力传感器/变送器/GM Series Melt Pressure Sensors / Transmitters

主体由不锈钢制成,其他材料由特殊工艺制造并通过高强度测试。使用钛化合物特殊涂层保护膜片,使其不受黏度和摩擦性较大物质的影响。本系列产品使用寿命长、测量性能精确、受温度漂移的影响更小更稳定。因采用NTX环保合金介质填充技术,所以该系列产品可用于食品和制药领域等。

The main body is made of stainless steel, with other components fabricated via special processes and tested for high strength. A special titanium compound coating protects the diaphragm from high-viscosity and abrasive materials. This series features long service life, precise measurement, low temperature drift and stable performance. Equipped with eco-friendly NTX alloy filling technology, it can be applied in food, pharmaceutical and other industries.

GMX系列熔体压力变送器/GMX Series Melt Pressure Transmitters

主体由不锈钢制成,其他材料由特殊工艺制造并通过高强度测试。使用钛化合物特殊涂层保护膜片,使其不受黏度和摩擦性较大物质的影响。本系列产品使用寿命长、测量性能精确、食品级传输介质、受温度漂移的影响更小更稳定。因采用NTX环保合金介质填充技术,所以该系列产品可用于食品和制药领域等。

The main body is made of stainless steel, and other components are manufactured through special processes and pass high-strength tests. A special titanium compound coating protects the diaphragm from high-viscosity and abrasive substances. This series boasts long service life, precise measurement, food-grade transmission medium, low temperature drift and stable performance. Adopting eco-friendly NTX alloy filling technology, it is suitable for food, pharmaceutical and other industries.

GMC系列熔体压力传感器/变送器/GMC Series Melt Pressure Sensors / Transmitters

±0.25% FSO及±0.5% FSO精度可选，80%内部校准，良好的稳定性和重复性。提供3.33mV/V，0-5V，0-10V，4-20mA等多种输出信号，多种可选电气连接。采用特殊螺纹安装设计，具有简便、可靠使用寿命长、测量性能精确、受温度漂移的影响更小更稳定等特点，特殊的裸露设计可满足特殊的应用环境需求。

It offers optional accuracy of ±0.25% FSO and ±0.5% FSO with 80% internal calibration for excellent stability and repeatability. Multiple output signals including 3.33mV/V, 0–5V, 0–10V and 4–20mA as well as various electrical connections are available. Designed with special threaded mounting, it features easy installation, high reliability, long service life, precise measurement and low temperature drift. Its unique exposed structure meets the requirements of special application environments.

GMR系列熔体压力传感器/变送器/GMR Series Melt Pressure Sensors / Transmitters

采用TI系列高性能数字芯片，电路设计依据SIL2，PL'C'安全性能的标准，通过继电器输出控制量程限度，确保挤出设备及产线的安全性，有效减少因压力过载对设备的损坏以及不可预测人身安全事故。适用于精密过程控制的挤出设备，生产线等，应用领域制冷、化工、环保等。

It adopts high-performance TI digital chips. The circuit complies with SIL 2 and PLC safety standards. Relay outputs are used for range limit control to secure extrusion equipment and production lines, effectively preventing equipment damage caused by overpressure and potential personal safety accidents. It is suitable for extrusion equipment and production lines requiring precise process control, widely used in refrigeration, chemical, environmental protection and other industries.

GAIM系列AI智能零温漂熔体压力传感器/变送器/GAIM Series AI Intelligent (Zero Temperature Drift) Melt Pressure Sensors / Transmitters

采用了温度补偿技术，在350°C下对产品进行零点漂移补偿，压力测量探头受到高温时，实现接近于零温漂，使得GAIM系列传感器测量更准确、稳定。

Equipped with temperature compensation technology, the product is calibrated for zero drift at 350°C. Near-zero temperature drift is achieved when the pressure probe works under high temperatures, enabling GAIM series sensors to deliver more accurate and stable measurement.

GAIMX系列AI智能零温漂熔体压力变送器/GAIMX Series AI Intelligent (Zero Temperature Drift) Melt Pressure Transmitters

采用了温度补偿技术，在350°C下对产品进行零点漂移补偿，压力测量探头受到高温时，实现接近于零温漂，再集成一块智能4...20mA+HART协议电路，使得GAIMX系列变送器测量更准确、稳定。

It adopts temperature compensation technology to realize zero drift calibration at 350°C, achieving nearly zero temperature drift when the pressure probe works under high temperatures. Integrated with an intelligent 4~20mA+HART protocol circuit, GAIMX series transmitters feature higher measurement accuracy and stability.

GPX系列熔体压力传感器/变送器/GPX Series Melt Pressure Sensors / Transmitters

主体由不锈钢制成，其他材料由特殊工艺制造并通过高强度测试使用钛化合物特殊涂层保护膜片，使其不受黏度和摩擦性较大物质的影响。本系列产品使用寿命长、测量性能精确、食品传输介质、受温度漂移的影响更小更稳定。采用NTX环保合金介质填充技术，所以该产品可用于食品和制药领域。

The main body is stainless steel, and other components are manufactured via special processes and have passed high-strength tests. A special titanium compound coating protects the diaphragm from high-viscosity and abrasive substances. This series features long service life, precise measurement, food-grade transmission medium, low temperature drift and stable performance. With eco-friendly NTX alloy filling technology, it can be applied to food and pharmaceutical industries.

GMPG系列熔体机械压力表/GMPG Series Melt Mechanical Pressure Gauges

应用于高温环境下测量压力的产品，4位LED显示、无示值误差、两路继电器控制的功能/特点，能在400°C高温下正常工作，采用标准螺纹连接方式安装，具有高稳定性及长使用寿命等特点。

This pressure measuring product features a 4-digit LED display, no indication error and dual-relay control. It can operate normally at up to 400°C, is installed via standard thread connection, and delivers high stability and long service life.

GMG 系列智能数字熔体表/GMG Series Intelligent Digital Melt Pressure Gauges

应用于高温环境下测量压力的产品，4位LED显示、无示值误差、两路继电器控制的功能/特点，能在400°C高温下正常工作，采用标准螺纹连接方式安装，具有高稳定性及长使用寿命等特点。

This pressure measuring device is designed for high-temperature environments. It is equipped with a 4-digit LED display, free of indication errors and supports two-channel relay control. Capable of stable operation up to 400°C, it adopts standard threaded connection for installation, featuring high stability and long service life.

GIS系列电位器调零信号转换器/GIS Series Potentiometer Zero-adjustment Signal Converters

实现传感器信号隔离、放大与标准转换，稳定抗干扰，兼容模拟/数字输出，轻松对接工控系统，适用于高温熔体及各类通用工业过程测量，广泛用于塑料、橡胶、化纤、石化等自动化测控场景，保障测控精准可靠。

It realizes sensor signal isolation, amplification and standard conversion with strong anti-interference performance. Compatible with analog and digital outputs, it can be easily connected to industrial control systems. Suitable for melt and general industrial process measurement, it is widely applied in automatic measurement and control of plastics, rubber, chemical fiber, petrochemical and other industries to ensure precise and reliable detection.

五、应用领域/Application Fields

1.塑料行业/Plastic Industry

主要应用：适配挤出、注塑、吹塑、流延、压延等各类塑料成型工艺，可安装于换网器、模具、喷嘴、型腔等关键点位，实时监测熔体压力变化，实现生产工艺闭环测控。

具体作用：能够稳定塑化质量与挤出流量，避免设备过压受损；同时优化填充、保压参数，改善产品缩痕、飞边等瑕疵，稳定产品尺寸精度，提升成品良品率。

Main Applications

Suitable for various plastic molding processes including extrusion, injection molding, blow molding, casting and calendering. It can be installed on key positions such as screen changers, molds, nozzles and cavities to monitor real-time melt pressure and realize closed-loop control of production processes.

Functions

It stabilizes plasticizing quality and extrusion flow to prevent equipment damage from overpressure. Meanwhile, it optimizes filling and holding pressure parameters, reduces defects like sink marks and flash, stabilizes dimensional accuracy and improves the yield rate of finished products.

2. 化纤行业/Chemical Fiber Industry

主要应用：主要应用于熔融纺丝生产线，安装在纺丝箱体、计量泵前后，监测聚酯、尼龙、聚丙烯等各类聚合物熔体压力，为纤维稳定成型提供数据支撑。

具体作用：通过精准稳压控流，匹配纺丝输送节奏，保障纤维纤度均匀，减少断丝、毛丝、粗细不均等常见问题，稳定纺丝生产效率，降低废品产出。

Main Applications

Mainly used in melt spinning production lines. Installed on spinning beams and before & after metering pumps, it monitors the melt pressure of polymers such as polyester, nylon and polypropylene, providing data support for stable fiber forming.

Functions

Precise pressure and flow control matches the spinning conveying rhythm to ensure uniform fiber fineness. It reduces frequent defects including filament breakage, fuzzy yarn and uneven thickness, stabilizes spinning efficiency and lowers reject rates.

3. 化工行业/Chemical Industry

主要应用：适用于高分子合成反应釜、高温熔融物料输送管道等设备，对热熔介质生产工况进行实时压力监测与工艺管控。

具体作用：可全程监控熔体压力状态，保障化学反应在安全区间稳定运行，稳定高温物料输送效率，规避超压运行隐患，保障化工连续生产安全、有序、可控。

Main Applications

It is applicable to polymer synthesis reactors, high-temperature molten material conveying pipelines and other equipment for real-time pressure monitoring and process control of thermal medium working conditions.

Functions

It monitors melt pressure throughout the whole process to ensure stable chemical reactions within safe ranges, stabilizes the conveying efficiency of high-temperature materials, avoids hidden dangers caused by overpressure, and guarantees safe, orderly and controllable continuous chemical production.

4. 橡胶行业/Rubber Industry

主要应用：适配橡胶挤出、压延核心工序，监测混炼胶在挤出机、压延辊筒中的熔体压力，为各类橡胶制品量产提供测控支撑。

具体作用：可精准调控熔体压力与流动性，稳定挤出尺寸与压延厚度，减少成型瑕疵，有效提升橡胶制品密实度与成型一致性。

Main Applications

It is applied to core processes of rubber extrusion and calendering, monitoring the melt pressure of mixed rubber in extruders and calender rolls to provide measurement and control support for mass production of various rubber products.

Functions

It precisely regulates melt pressure and fluidity, stabilizes extrusion dimensions and calendering thickness, reduces molding defects, and effectively improves the compactness and molding consistency of rubber products.

5. 食品行业/Food Industry

主要应用：可应用于食品包装，巧克力、糖果、油脂等高低温熔融食品加工产线，监测物料熔融、输送全过程压力，契合食品卫生级生产标准。

具体作用：通过稳定熔体输送压力与生产工艺，统一食品成品品质，减少批次间品质差异，保障食品生产洁净、规范、连续稳定。

Main Applications

It can be used in food packaging as well as high and low-temperature molten food production lines for chocolate, candy, grease and other products. It monitors pressure throughout material melting and conveying, complying with hygienic standards for food-grade production.

Functions

By stabilizing melt conveying pressure and production processes, it ensures consistent finished food quality and reduces batch-to-batch differences, enabling clean, standardized, continuous and stable food production.

6. 制药工业/Pharmaceutical Industry

主要应用：适配药物热熔挤出工艺，多用于缓释制剂等高端药品生产场景，监测药粉与高分子共混熔体压力。

具体作用：精准稳定的挤出压力，可保障物料混合均匀、生产工艺稳定，提升药品成型效果与药效一致性，满足制药行业高洁净、高精度的生产要求。

Main Applications

It is suitable for pharmaceutical hot melt extrusion processes, widely adopted in the production of high-end drugs such as sustained-release preparations, to monitor the melt pressure of mixed medicinal powder and polymers.

Functions

Accurate and stable extrusion pressure ensures uniform material mixing and consistent production processes, improves drug forming performance and the uniformity of drug efficacy, and meets the high cleanliness and high-precision production requirements of the pharmaceutical industry.

7. 冶金行业/Metallurgical Industry

主要应用：适配熔炉、保温炉、压铸机等冶金设备，服务金属熔炼与压铸全流程工况。

具体作用：可在严苛高温环境下实现精准监测，稳定压铸喷射工艺，减少成型缺陷，保障压铸件尺寸均匀、品质稳定。

Main Applications

It is suitable for metallurgical equipment including melting furnaces, holding furnaces and die-casting machines, covering the whole working process of metal smelting and die casting.

Functions

It enables precise measurement under harsh high-temperature conditions, stabilizes die-casting injection processes and reduces forming defects, ensuring uniform dimensions and stable quality of die castings.

六、快速选型指南/Quick Selection Guide

1.按介质洁净等级与物料要求选型/Model Selection Based on Medium Cleanliness Grade and Material Requirements

普通橡塑量产、常规食品、医药、锂电隔膜、芳纶、光学薄膜等常规工况，均可选用搭载 NTX 多元合金填充技术的系列产品（GINS、GMP、GHP、GCM、GMC等），其填充介质符合食品级标准，可适配绝大多数常规生产场景。

食品、医药行业中介质严禁与原料直接接触的高洁净生产工况，优先选用搭载 NFM 无介质传导技术的 GEMP 系列，从根源规避介质渗漏、物料交叉污染的隐患。

易燃易爆化工车间，建议选用具备正规防爆认证的 GMX、GAIMX 防爆系列产品，依托 NTX 环保合金填充技术搭配 AI 智能温度补偿技术，可满足高危防爆类生产环境的使用要求。

For mass production of general rubber and plastics, conventional food processing, pharmaceutical manufacturing, lithium battery separators, aramid fibers, optical films and other common working conditions, series products equipped with NTX multi-alloy filling technology (GINS, GMP, GHP, GCM, GMC, etc.) are applicable. Their filling medium complies with food-grade standards and fits most conventional production scenarios.

For high-cleanliness production conditions in the food and pharmaceutical industries where direct contact between the medium and raw materials is prohibited, the GEMP series adopting NFM medium-free conduction technology is the preferred choice, fundamentally eliminating risks of medium leakage and cross-contamination of materials.

For flammable and explosive chemical workshops, GMX and GAIMX explosion-proof series with official explosion-proof certifications are recommended. Combined with NTX eco-friendly alloy filling technology and AI intelligent temperature compensation technology, they can meet the application requirements of high-risk explosion-proof production environments.

2.按介质温度与精度要求选型/Model Selection Based on Medium Temperature and Accuracy Requirements

300℃ 以内常规工况：可选用全系 NTX 介质填充类传感器机型，适配橡塑、食品、医药、化纤等绝大多数常规中低温生产场景，性能稳定、通用性强。

300℃～400℃ 高温、高洁净工况：优先选用 GEMP 无介质系列产品。采用 NFM 无介质传导结构，可长期耐受 400℃ 高温工况，从源头杜绝介质碳化、渗漏、污染问题，适配各类高温洁净生产工艺。

针对对测量稳定性、精度要求高、受温度波动影响敏感的生产场景，优先推荐搭载 AI 智能化零温漂技术的 GAIM、GAIMX 智能系列，采用专业温度补偿技术，在 350℃高温环境下完成零点漂移补偿，探头在高温工作时可实现趋近于零的温漂表现，大幅提升整机测量精度与稳定性。

Conventional working conditions below 300°C: All NTX medium-filled sensor models are available, widely applied in most medium and low-temperature production scenarios such as rubber & plastics, food, pharmaceuticals and chemical fibers with stable performance and strong versatility.

High-temperature and high-cleanliness working conditions ranging from 300°C to 400°C: The GEMP medium-free series is preferred. Adopting the NFM medium-free conduction structure, it can withstand long-term working temperature up to 400°C, fundamentally avoiding medium carbonization, leakage and contamination, suitable for various high-temperature clean production processes.

For production scenarios demanding high measurement stability and precision and sensitive to temperature fluctuations, the GAIM and GAIMX intelligent series equipped with AI intelligent zero-temperature-drift technology are highly recommended. With professional temperature compensation technology for zero drift calibration under 350°C high temperature, the probe achieves nearly zero temperature drift during high-temperature operation, greatly improving the overall measurement accuracy and stability of the equipment.

3.按安装结构与特殊工况、防爆要求选型/Model Selection Based on Installation Structure, Special Working Conditions and Explosion-proof Requirements

挤出机模头通用安装场景：优先推荐选用 1/2"UNF 标准螺纹系列，同时可提供 M18、M14 等多种螺纹规格可选；

大容积反应釜、大流量熔体输送管道：选用 GM、GMX 法兰安装系列；

安装空间狭小、需要裸露式结构适配特殊工况环境：优先选用带特殊裸露设计的 GMC 系列；

防爆生产车间：建议选用具备防爆认证的 GMX、GAIMX 系列机型；其中法兰式大管径防爆场景推荐 GMX，高精度螺纹防爆场景推荐 GAIMX。

General installation for extruder dies: The 1/2" UNF standard thread series is recommended, with optional thread specifications including M18, M14 and others.

Large-volume reaction kettles and high-flow melt conveying pipelines: GM and GMX flange-mounted series are adopted.

Limited installation space and special working conditions requiring exposed structure: The GMC series with dedicated exposed design is preferred.

Explosion-proof workshops: GMX and GAIMX series with explosion-proof certifications are recommended. GMX is suitable for flange-mounted large-caliber explosion-proof scenarios, while GAIMX applies to high-precision threaded explosion-proof occasions.