I. Model Explanation

PR6423: Φ8mm Standard Eddy Current Sensor Series

003: Armored Cable, Length 5 meters

030: Standard Sensitivity, Standard Linear Calibration Version

II. Basic Specifications

Probe Specifications: Diameter 8mm, Threaded Installation

Structure: Integrated Armored Shielded Cable, Resistant to Mechanical Tension, Resistant to Electromagnetic Interference

Adapter Compatibility: CON021 Special Matching

III. Measurement Performance Parameters

Standard linear range: 0 - 1.5mm

Rated sensitivity: 12 V/mm

Recommended gap for installation: 2.5mm

Matching midpoint voltage (with CON021): -12V

Frequency response: 0 - 12kHz

DC resistance of the coil: 4 - 6Ω

Insulation resistance: > 100MΩ

IV. Environmental Conditions

Probe operating temperature: -35℃ ～ +150℃

Cable operating temperature: -30℃ ～ +100℃

Protection level: IP67

Suitable for measured materials: 42CrMo4 ferromagnetic alloy steel, with surface roughness Ra ≤ 3.2μm

V. Compatibility and Usage

Must be paired: PR6423/003-030 + CON021

Application scenarios: Steam turbines, compressors, fans, shaft vibration, shaft displacement, phase comparison measurement

Compatible systems: MMS6000, AMS6500 TSI system

VI. Installation and Debugging Key Points

Standard installation gap: 2.5mm. After adjustment, the output of the preamplifier should be stable at -12V.

Shielded cables should be routed away from power cables and frequency converters to avoid parallel or co-located laying.

Single-ended grounding of the shielding layer, only grounding on the side of the preamplifier cabinet, and leaving the probe end floating.

The probe should be perpendicular to the measured shaft surface, avoiding the shaft edge to prevent edge effect.

VII. Normal Voltage Reference (with CON021 -24VDC power supply)

Gap is too small: Output approaches -4V

Standard operating point: 2.5mm → -12V

Gap is too large: Output approaches -20V

No voltage / Close to 0V: Probe disconnection, LEMO connector loosening, abnormal power supply