Description
Product Description
Overview
The PR6424/003 from Emerson is a 16 mm non-contact eddy current sensor designed for high-precision monitoring of critical rotating machinery. It delivers reliable measurement of radial and axial shaft displacement, eccentricity, speed, and key positioning, suitable for turbines, compressors, pumps, and industrial fans.
Mechanical and Electrical Specifications
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Sleeve Thread: M18 × 1.5
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Armored Cable: Not included
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Total Sensor Length: 60 mm
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Adaptor Plug: Not included
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Cable Length: 8 m, PTFE-insulated
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Cable End: LEMO connector
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Material: Stainless steel sleeve, PTFE cable
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Weight (sensor + 1 m cable, no armor): ~200 g
Dynamic Performance
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Sensitivity / Linearity: 4 V/mm (101.6 mV/mil), ≤ ±1.5%
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Nominal Air Gap: 2.7 mm (0.11 in)
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Static Measurement Range: ±2 mm (0.079 in)
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Dynamic Range: 0–1 000 µm (0–0.039 in)
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Long-Term Drift: <0.3%
Target Compatibility
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Material: Ferromagnetic steel (42CrMo4 standard)
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Maximum Surface Speed: 2,500 m/s
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Minimum Shaft Diameter: 80 mm
Environmental Tolerance
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Operating Temperature: –35 to 150 °C (–31 to 302 °F)
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Temperature Error: <4% per 100 K (API 670 compliant)
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Pressure Resistance (Sensor Head): up to 10,000 hPa (145 psi)
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Shock & Vibration: 5 g at 60 Hz, 25 °C
Applications
The PR6424/003 is ideal for monitoring critical rotating machinery where non-contact precision sensing is required. Common applications include: steam turbines, gas turbines, hydro turbines, industrial compressors, high-speed pumps, and large axial or radial fan systems.
FAQ
Q: Can this sensor operate in high-temperature environments?
A: Yes, it supports –35 to 150 °C and maintains API 670-compliant temperature accuracy.
Q: Is the sensor suitable for armored cable installations?
A: The current configuration comes without armored cable. Armored versions are available for harsh environments.
Similar Models Comparison
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PR6424/002: 50 mm sensor length, armored cable optional
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PR6424/004: 80 mm sensor length, includes adaptor plug
Technical Specifications Table
| Parameter |
Specification |
| Sensor Diameter |
16 mm |
| Sleeve Thread |
M18 × 1.5 |
| Total Sensor Length |
60 mm |
| Cable Type |
PTFE |
| Cable Length |
8 m |
| Cable End |
LEMO |
| Armored Cable |
No |
| Adaptor Plug |
No |
| Sensitivity |
4 V/mm |
| Air Gap |
2.7 mm |
| Static Range |
±2 mm |
| Dynamic Range |
0–1 000 µm |
| Operating Temp |
–35 to 150 °C |
| Pressure Resistance |
10,000 hPa |
| Weight |
~200 g |
