描述
BENTLY 125388-01H产品详情
一、基本信息
品牌:BENTLY NEVADA(本特利内华达,隶属于Baker Hughes,全球领先的旋转机械状态监测与保护系统供应商)。
型号:125388-01H
类型:涡流传感器探头(Eddy Current Probe),属于BENTLY 3300系列状态监测系统的核心组件。
用途:用于实时监测旋转机械(如汽轮机、压缩机、发电机)的轴振动、轴位移、转速等关键参数,预防设备故障,保障运行安全。
二、技术规格与功能
1.核心功能
振动与位移监测:
通过涡流效应非接触测量轴的径向振动、轴向位移(推力间隙),精度达微米级。
支持轴承磨损、转子不平衡、不对中、热膨胀等故障诊断。
转速测量(可选):
配合键相器(Keyphasor)实现转速、相位角测量,用于动平衡与扭振分析。
信号输出:
输出电压与探头到轴表面的间隙成正比(线性范围0~2.54 mm或0~100 mils)。
典型灵敏度:7.87 V/mm(200 mV/mil),输出阻抗≤10Ω。
2.性能参数
测量范围:
线性范围:0~2.54 mm(0~100 mils),推荐工作间隙1.27 mm(50 mils)。
最大可测间隙:4 mm(157 mils,超出后信号饱和)。
精度与稳定性:
线性误差:≤±1%(全量程)。
温度漂移:≤0.05%/℃(环境温度-34℃至+121℃)。
频率响应:
0~10 kHz(-3 dB),适用于低速至高速旋转机械(如300~3600 RPM汽轮机)。
3.电气与机械设计
供电要求:
驱动电压:-24 VDC(±10%),功耗≤12 mA。
需配合前置器(如3300/16或3500/42)使用,前置器提供激励信号与信号调理。
探头尺寸:
直径:8 mm(标准型)或11 mm(大直径型,适用于高温/高压环境)。
长度:50 mm至1 m(可定制,适应不同安装空间)。
材质与防护:
探头外壳:316L不锈钢(耐腐蚀),探头线缆:聚四氟乙烯(PTFE)绝缘。
防护等级:IP67(探头),线缆接头符合MIL-C-5015标准。
4.环境适应性
温度范围:
探头:-34℃至+177℃(短期可耐204℃)。
前置器:-34℃至+65℃(标准型),高温型可达+85℃。
压力与介质:
适用于高压(≤34 MPa)与腐蚀性介质(如H₂S、CO₂环境),需选配特殊密封。
三、产品优势
高精度与可靠性
微米级测量精度,满足API 670标准(振动监测系统要求)。
非接触式设计避免磨损,寿命长达10年以上(定期校准前提下)。
抗干扰能力强
涡流信号对油污、水膜不敏感,适用于恶劣工况(如炼油厂、化工厂)。
探头线缆屏蔽层有效抑制电磁干扰(EMI/RFI)。
兼容性与扩展性
兼容BENTLY 3300、3500、System 1等系列监测系统。
支持多通道扩展(如3500框架最多16个振动通道)。
BENTLY 125388-01H Product Details
I.Basic Information
Brand:BENTLY NEVADA(Bently Nevada,a subsidiary of Baker Hughes,the world’s leading supplier of rotating machinery condition monitoring and protection systems).
Model:125388-01H
Type:Eddy Current Probe,a core component of the BENTLY 3300 series condition monitoring system.
Purpose:Used to monitor key parameters such as shaft vibration,shaft displacement,and speed of rotating machinery(such as turbines,compressors,and generators)in real time to prevent equipment failures and ensure safe operation.
II.Technical Specifications and Functions
1.Core Functions
Vibration and displacement monitoring:
Non-contact measurement of radial vibration and axial displacement(thrust clearance)of the shaft through the eddy current effect,with an accuracy of micron level.
Supports fault diagnosis such as bearing wear,rotor imbalance,misalignment,and thermal expansion.
Speedmeasurement(optional):
Cooperate with the keyphasor to achieve speed and phase angle measurement for dynamic balancing and torsional vibration analysis.
Signal output:
The output voltage is proportional to the gap between the probe and the shaft surface(linear range 0~2.54 mm or 0~100 mils).
Typical sensitivity:7.87 V/mm(200 mV/mil),output impedance≤10Ω.
2.Performance parameters
Measurement range:
Linear range:0~2.54 mm(0~100 mils),recommended working gap 1.27 mm(50 mils).
Maximum measurable gap:4 mm(157 mils,signal saturation after exceeding).
Accuracy and stability:
Linear error:≤±1%(full scale).
Temperature drift:≤0.05%/℃(ambient temperature-34℃to+121℃).
Frequency response:
0~10 kHz(-3 dB),suitable for low-speed to high-speed rotating machinery(such as 300~3600 RPM turbines).
3.Electrical and Mechanical Design
Power Requirements:
Drive Voltage:-24 VDC(±10%),Power Consumption≤12 mA.
Need to be used with a preamplifier(such as 3300/16 or 3500/42),which provides excitation signals and signal conditioning.
Probe Size:
Diameter:8 mm(standard)or 11 mm(large diameter,suitable for high temperature/high pressure environments).
Length:50 mm to 1 m(customizable to adapt to different installation spaces).
Material and Protection:
Probe Housing:316L Stainless Steel(Corrosion Resistant),Probe Cable:Polytetrafluoroethylene(PTFE)Insulated.
Protection Level:IP67(Probe),Cable Connector Complies with MIL-C-5015 Standard.
4.Environmental Adaptability
Temperature Range:
Probe:-34°C to+177°C(Short-term resistant to 204°C).
Preamplifier:-34℃to+65℃(standard type),high temperature type can reach+85℃.
Pressure and medium:
Suitable for high pressure(≤34 MPa)and corrosive media(such as H₂S,CO₂environment),special seals are required.
III.Product advantages
High precision and reliability
Micron-level measurement accuracy,meeting API 670 standard(vibration monitoring system requirements).
Non-contact design avoids wear and tear,and the service life is more than 10 years(under the premise of regular calibration).
Strong anti-interference ability
Eddy current signals are insensitive to oil and water film,and are suitable for harsh working conditions(such as refineries and chemical plants).
The shielding layer of the probe cable effectively suppresses electromagnetic interference(EMI/RFI).
Compatibility and scalability
Compatible with BENTLY 3300,3500,System 1 and other series monitoring systems.
Supports multi-channel expansion(such as 3500 frame up to 16 vibration channels).