Product Short Description
Product Overview
PR6423 00R-000 belongs to PR6423 miniature probe series with 8mm sensing head diameter and M8×1 miniature mounting thread. Suffix code 00R represents ultra-micro linear measuring range ±0.5mm, suffix code 000 stands for ultra-short probe body without extended thread sleeve. This probe is specially developed for rotating equipment bearing housings with extremely narrow installation space, used for high-precision tiny clearance static displacement measurement, must be matched with CON021 signal conditioner to form complete measuring system.
Description
Technical & Performance Specifications
- Probe Core Parameters
- Linear measuring range: ±0.5mm (suffix code 00R ultra-micro range)
- Probe total body length: ultra-short size without extended thread sleeve (suffix code 000)
- Probe head diameter: 8mm miniature size
- Standard integrated shielded coaxial cable length: 5m
- Matched system sensitivity: 8 V/mm
- Full system linearity error: ≤±1% full scale
- Frequency response bandwidth: DC ~ 20kHz
- Probe operating temperature: -40°C ~ +125°C
- Protection grade of probe body: IP66
- Standard measuring target: 42CrMo4 ferromagnetic alloy steel; minimum measured shaft diameter: 25mm
- Matched CON021 Signal Conditioner Parameters
All electrical, environmental and mounting parameters of matched CON021 conditioner are completely consistent with CON021 parameters listed in PR6424 010-110+CON021 model datasheet
Material Composition & Structural Features
- PR6423 00R-000 Probe
- Sensing coil: ultra-small diameter copper enameled wire winding, fully sealed with high-temperature two-component epoxy resin
- Probe housing: thin-wall seamless 304 stainless steel tube, CNC precision machined external M8×1 miniature mounting thread, overall outer diameter smaller than PR6424 series probes
- Connecting cable: double-layer shielded coaxial cable with identical material and structural design as PR6424 series probes
- Cable connector: gold-plated self-locking LEMO aviation plug with anti-vibration locking structure
- Matched CON021 Signal Conditioner
Material composition and structural features fully consistent with CON021 content in PR6424 010-110+CON021 model datasheet
Working Principle
The core eddy current signal conversion working principle of PR6423 00R-000 miniature probe is completely identical to PR6424 series probes. The only difference lies in miniature probe structural size and ultra-micro linear measuring range, without changing high-frequency electromagnetic field excitation, eddy current induction, coil impedance variation detection and linear voltage demodulation logic of CON021 conditioner. This miniature probe focuses on capturing tiny static clearance change of metal shaft, and can also detect micro-amplitude high-frequency vibration of small-diameter rotating shaft. The matched CON021 conditioner still retains complete cable open/short-circuit fault self-diagnosis function.
Core Functional Features
- Miniature 8mm sensing head and M8×1 miniature mounting thread, perfectly adapt to narrow reserved mounting holes of small and medium-sized rotating equipment bearing housings
- Ultra-micro ±0.5mm linear measuring range, ultra-high resolution for high-precision tiny clearance static displacement measurement
- Compact ultra-short probe body design without extended thread sleeve, suitable for deep and narrow bearing housing internal installation space
- Wide frequency response bandwidth up to 20kHz, capable of capturing micro-amplitude high-frequency vibration signals of high-speed small rotating shafts
- Non-contact measuring mode, zero mechanical friction and wear between probe and rotating shaft, long service life
- Measuring signal immune to lubricating oil, water vapor and dust interference in bearing housing gap
- Standard matching with CON021 signal conditioner, factory unified calibration of probe and conditioner to guarantee overall measuring linearity accuracy
- CON021 built-in cable fault self-diagnosis function, timely feed back probe circuit abnormal signal to upper monitoring system
Application Scenarios
- Small high-speed centrifugal pump, micro turbo expander miniature rotor tiny axial clearance static displacement monitoring
- Precision gearbox high-speed small-diameter gear shaft micro-amplitude vibration and eccentricity high-precision measurement
- Small gas turbine auxiliary rotating shaft thrust bearing micro clearance wear early warning monitoring
- Precision industrial fan and small blower rotor tiny radial vibration protection measurement
- Laboratory high-speed rotating test bench micro shaft clearance precision displacement measuring equipment
- Hydraulic small turbine generator unit miniature rotor axial thrust tiny displacement online monitoring
Installation Requirements
- Probe Installation Rules
All installation operation rules of PR6423 00R-000 miniature probe are consistent with probe installation requirements listed in PR6424 010-110+CON021 model datasheet; special attention shall be paid to adjusting initial clearance to midpoint of ±0.5mm ultra-micro linear range before locking anti-loose nuts
- Matched CON021 Conditioner Installation Rules
All DIN rail installation, power supply wiring, signal wiring and grounding rules of CON021 conditioner are completely consistent with conditioner installation requirements listed in PR6424 010-110+CON021 model datasheet
Operation & Maintenance Precautions
All operation and daily maintenance precautions of PR6423 00R-000 probe and matched CON021 conditioner are consistent with maintenance requirements listed in PR6424 010-110+CON021 model datasheet; during regular calibration, standard calibration fixture shall be used for tiny 0.5mm range precision displacement calibration
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