Description

EPRO PR6423/011-110+CON021 Eddy Current Vibration/Displacement Sensor Kit
EPRO PR6423/011-110+CON021 is a complete system of electromagnetic eddy current sensors and preamplifiers under the EPRO brand of Emerson. It is used for non-contact monitoring of shaft vibration, shaft displacement, and eccentricity in rotating machinery, and is widely found in key units such as steam turbines and compressors, in compliance with API 670 standards.

The product images shown are not actual photos. There are still more models that have not been launched yet.For more details or price negotiations, please contact us: Email: sales@fyplc.cn | WhatsAPP: +86 15359458915

I. Composition and Model Description
PR6423/011-110: Eddy Current Probe (including 1-meter armored cable)
CON021: Pre-Amplifier (Signal Conditioning / Transmitter)
Combined Usage: Probe measures gap changes → Pre-Amplifier amplifies / linearizes → Outputs standard voltage to monitoring instrument (e.g. MMS 3000)
II. Core Parameters
1) Probe PR6423/011-110
Probe Diameter: 8 mm, M10×1 Thread
Linear Range: 2 mm (Commonly used 0.8 – 1.6 mm working range)
Sensitivity: 8 V/mm (Typical)
Frequency Response: 4 Hz – 1 kHz
Operating Temperature: -35°C – +180°C
Protection: IP55/IP65, Stainless Steel Shell, Corrosion Resistant
2) Pre-Amplifier CON021
Power Supply: -24 VDC (Range -23 – -32 VDC)
Output: -4 – -20 VDC (Including DC Gap + AC Vibration Components)
Frequency Response: 0 – 10 kHz (-3 dB)
Accuracy: Linear Error ≤ ±1%, Compliant with API 670
Temperature: -30°C – +100°C
Protection: IP20, Panel Mounting
Size: 112×84×34 mm, Approximately 0.5 kg

III. Key Features
Non-contact measurement: No wear, suitable for high-speed rotating shafts (steam turbines / gas turbines).
High stability and anti-interference: Armored cable + shielding design, applicable in strong electromagnetic environments of power plants / petrochemical industries.
Complete calibration: Factory calibration with 42CrMo4 target material, only need to adjust the air gap on site.
Self-diagnosis in case of faults: Preamplifier can detect open circuit / short circuit of the probe, output fault level.

IV. Typical Applications
Power generation: Axial vibration / axial displacement protection of steam turbines / gas turbines / water turbines.
Petrochemical industry: State monitoring of compressors, fans, pumps, gearboxes.
Industry: High-speed motors, eccentricity / oil film thickness monitoring of turbomachinery.
V. Alternatives / Compatibility
Within the same series, replacements are available: PR6423/010-040, PR6423/110-110 (different lengths / threads).
Matching monitoring systems: MMS 3000, MMS 6000, Bently 3500 (requires configuration adaptation).