描述
Bently Nevada 330980-71-00产品详情解析
该型号属于Bently Nevada 3500系列监测系统的高频电涡流传感器组件，是330980-70-00的升级版，专为高速旋转机械（如燃气轮机、航空发动机、高速压缩机）的高精度振动、轴向位移、胀差监测设计。以下从技术参数、核心升级点、应用场景及安装维护等方面展开详细说明：
一、型号分解与核心配置
型号编码规则：330980-71-00
部分含义
330980基础型号：3500系列电涡流传感器组件（含探头、前置器、延伸电缆）。
-71关键升级标识：
-超高频响应：带宽扩展至15kHz（相比-70型的10kHz），适用于转速>15,000 rpm的超高速机械。
-四重屏蔽设计：在铜网+铝箔基础上增加导电塑料层，屏蔽效能>90dB（1MHz），抗电磁干扰能力更强。
-智能诊断功能：内置Self-Check自检模块，可实时监测传感器状态（如探头松动、电缆断路），并通过4-20mA信号输出故障代码。
-00标准配置标识：
-无数字通信模块：仅提供模拟信号输出（4-20mA或-24V至0V）。
-无特殊环境认证：标准温度范围（-35℃至+175℃），无ATEX防爆或高温选项（若需需选择-EX或-HT后缀）。
二、核心组件技术参数升级
1.探头（Proximity Probe）
型号：3300 XL系列超高频探头（与3500系统兼容）。
关键升级特性：
量程与精度：
量程：0.25-8mm（默认配置，可选12mm需订制）。
分辨率：≤0.03μm（相比-70型的0.05μm，提升40%）。
线性度：≤±0.3%（相比-70型的≤±0.5%，精度提升40%）。
频率响应：
带宽：0-15kHz（可捕捉转子瞬态冲击、高频疲劳裂纹扩展等信号）。
耐温设计：
标准型号：-35℃至+175℃（探头头部）。
高温选项：若后缀为-71-HT，则耐温范围扩展至-35℃至+260℃（适用于燃气轮机排气段监测）。
材料与防护：
探头头部：Inconel 718合金（相比-70型的Inconel 625，耐高温蠕变性能提升30%）。
外壳：钛合金TC4（相比不锈钢316L，重量减轻40%，抗腐蚀性更强）。
.Bently Nevada 330980-71-00 Product Details
This model is a high-frequency eddy-current sensor assembly for the Bently Nevada 3500 Series Monitoring System.It is an upgraded version of the 330980-70-00 and is designed for high-precision vibration,axial displacement,and differential expansion monitoring of high-speed rotating machinery(such as gas turbines,aircraft engines,and high-speed compressors).The following details the technical specifications,key upgrade points,application scenarios,and installation and maintenance:
I.Model Decomposition and Core Configuration
Model Coding Rules:330980-71-00
Part Meaning
330980 Base Model:3500 Series eddy-current sensor assembly(including probe,preamplifier,and extension cable).
-71 Key Upgrade Designations:
-Ultra-High Frequency Response:Bandwidth extended to 15kHz(compared to 10kHz in the-70 model),suitable for ultra-high-speed machinery with speeds exceeding 15,000 rpm.-Quadruple shielding design:A conductive plastic layer is added to the copper mesh and aluminum foil,achieving a shielding effectiveness of>90dB(1MHz)and enhancing electromagnetic interference resistance.
-Intelligent diagnostics:A built-in self-check module monitors sensor status(such as loose probes and broken cables)in real time and outputs fault codes via a 4-20mA signal.
-00 Standard configuration designation:
-No digital communication module:Only analog signal output(4-20mA or-24V to 0V)is provided.
-No special environmental certification:Standard temperature range(-35°C to+175°C),no ATEX explosion-proof or high-temperature options(select the-EX or-HT suffix if required).
II.Core Component Technical Specification Upgrades
1.Proximity Probe
Model:3300 XL Series Ultra-High Frequency Probe(compatible with the 3500 system).Key Upgrade Features:
Range and Accuracy:
Range:0.25-8mm(default configuration,12mm optional upon order).
Resolution:≤0.03μm(40%improvement compared to 0.05μm on the-70 model).
Linearity:≤±0.3%(40%improvement compared to≤±0.5%on the-70 model).
Frequency Response:
Bandwidth:0-15kHz(capable of capturing rotor transient shocks,high-frequency fatigue crack growth,and other signals).
Temperature Design:
Standard Model:-35°C to+175°C(probe head).
High-Temperature Option:Suffix-71-HT extends the temperature range to-35°C to+260°C(suitable for gas turbine exhaust monitoring).Materials and Protection:
Probe Head:Inconel 718 alloy(30%higher high-temperature creep resistance compared to Inconel 625 in the-70 model).
Casing:Titanium TC4 alloy(40%lighter and more corrosion-resistant than 316L stainless steel).
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