I. Model Interpretation PR6423/002-030-CN

PR6423: Φ8mm Eddy Current Probe Series

002: With armored cable, length 3m

030: Standard range, standard sensitivity version

CN: Calibration for China Region / Chinese Label Version

CON021: Matching standard preamplifier (IP20, LEMO interface)

II. Parameters of PR6423/002-030-CN probe

Probe diameter: Φ8mm

Cable: 3m armored double shield, strong anti-interference

Linear range: 0 - 1.5mm (static ±1.0mm)

Sensitivity: 12V/mm (matched with CON021)

Recommended air gap: 2.5mm (corresponding to preamplifier - 12V)

Frequency response: 0 - 12kHz

Operating temperature: Probe -35℃ - +150℃; Cable -30℃ - +100℃

Coil resistance: 4 - 6Ω; Insulation resistance: >100MΩ

Suitable target materials: 42CrMo4 and other ferromagnetic steel, target surface diameter ≥ 25mm

III. Parameters of CON021 preamplifier

Power supply: -24VDC (-18 - -30VDC)

Output: -4V - -20V (linear range), with added vibration AC component

Mid-point voltage: -12V (air gap 2.5mm)

Power consumption: ≤2W

Frequency response: 0 - 10kHz (-3dB)

Protection: Open circuit / Short circuit / Reverse polarity protection

Protection: IP20 (installed in control cabinet)

Connection: Sensor end LEMO plug; Power / Output end screw terminals

IV. Complete wiring (terminal definitions are the same as before)

CON021 terminals:

1: -24V; 2: GND; 3: OUT (to MMS6110/MMS6312); 4: COM

Probe → Preamplifier: LEMO direct insertion locking, no adapter required

Shielding: Single-ended grounding (on the machine cabinet side), probe side shielding floating

V. Installation and commissioning key points

Air gap setting: 2.5mm → Output - 12V (optimal linearity)

Wiring: Away from power lines / frequency converters, parallel spacing ≥ 300mm

Compatible system: MMS6000 (MMS6110 vibration, MMS6312 speed / phase alignment), AMS6500 TSI

VI. Differences from PR6423/001-000

001-000: Short cable, no armor, suitable for short distance, low interference scenarios

002-030-CN: 3m armored cable, strong anti-interference, suitable for long-distance wiring in industrial sites