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OUTER ELECTRONIC TECHNOLOGY (HK) LIMITED

  • China,Shenzhen ,Guangdong
  • Verified Supplier
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China QBJ-3PN Eccentricity Monitor - Rotary Machinery Shaft Eccentricity Monitoring
China QBJ-3PN Eccentricity Monitor - Rotary Machinery Shaft Eccentricity Monitoring

  1. China QBJ-3PN Eccentricity Monitor - Rotary Machinery Shaft Eccentricity Monitoring

QBJ-3PN Eccentricity Monitor - Rotary Machinery Shaft Eccentricity Monitoring

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Packaging Details New original box
Brand Name OEM
Model Number QBJ-3PN
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Packaging Details New original box Brand Name OEM
Model Number QBJ-3PN Place of Origin China
High Light 0~200um Eccentricity Monitor4~20mA Shaft Eccentricity Monitoring DeviceAlarm Relay Rotational Speed Sensor
QBJ-3PN Eccentricity Monitor - Rotary Machinery Shaft Eccentricity Monitoring and Protection Device
The QBJ-3PN eccentricity monitoring instrument provides comprehensive monitoring and protection for rotating machinery shafts. This system consists of a monitoring instrument and a 3800XL-Φ8mm eddy current sensor, delivering reliable eccentricity measurement that is essential for evaluating the overall mechanical condition of rotating equipment.
Eccentricity measurement has become indispensable during steam turbine start-up or shutdown operations. The system enables visualization of shaft bending caused by thermal effects or gravitational forces, providing critical data for machinery health assessment.
Measurement Applications
Eccentricity measures shaft bending at low speeds, detecting issues caused by:
  • Pre-existing mechanical bending
  • Temporary temperature-induced bending
  • Gravity bending under static conditions
The rotor's eccentric position (shaft radial position) indicates bearing wear, applied load magnitude from misalignment, and determines shaft azimuth angle for stability assessment.
Technical Specifications
Measurement Range 0~200μm (peak to peak eccentricity)
Frequency Response 0.17Hz~10Hz (1~600cpm)
Above 600 rpm: displays shaft vibration signal
Accuracy Linearity Error: <0.5% (full scale)
System Error: <±2%
Output Constant Current: 4~20mA (DCS compatible)
Alarm/Danger Switch: Passive contact DC24V/2A
Noise Level: <1% (full scale) no signal
Linear Range 2mm
Operating Temperature Instrument: -25℃~45℃, relative humidity <80%
(Sensor specs per 3800XL-A01 manual)
Dimensions 160mm (W) × 80mm (H) × 260mm (D)
Cutout Dimensions 153mm (W) × 77mm (H) × 260mm (D)
Power Supply AC220V±10%/50Hz
Main Functions
  • Independent relay outputs for alarm and danger conditions
  • Configurable measuring range limits with 4-20mA current output
  • Disconnection detection protection with 5-second delay recovery
  • Fully adjustable alarm/danger values within measurement range
  • Maximum measurement value memory function
  • Gap voltage measurement display
  • Automatic return to measurement state after 1 minute of inactivity

Company Details

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,

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 from Quality China Factory
  • Business Type:

    Exporter,Trading Company,Seller

  • Year Established:

    2000

  • Total Annual:

    3 Million-4 Million

  • Ecer Certification:

    Verified Supplier

Our company OUTER ELECTRONIC TECHNOLOGY (HK) LIMITED focus is on steel mills, power plants, cement plant , chemicals, paper, CNC numerical control machine tool industry system spare parts! Main products: DCS system cards, spares of turbine ,generator ,boiler ,blower , coal mill , motor , transformer... Our company OUTER ELECTRONIC TECHNOLOGY (HK) LIMITED focus is on steel mills, power plants, cement plant , chemicals, paper, CNC numerical control machine tool industry system spare parts! Main products: DCS system cards, spares of turbine ,generator ,boiler ,blower , coal mill , motor , transformer...

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Get in touch with us

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  • OUTER ELECTRONIC TECHNOLOGY (HK) LIMITED
  • NO. 7-A5, ZHONGHANGBEIYUAN BUILDING, 42 ZHONGHANG ROAD, HUAQIANGBEI SUBDISTRICT, FUTIAN DISTRICT, SHENZHEN , CHINA
  • https://www.electric-valveactuator.com/

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