Description

Product Description

Overview
The PR6425 sensor signal converter, designed by PR Electronics, is optimized for critical turbo machinery applications including steam, gas, and hydro turbines, as well as compressors, pumps, and fans. It provides precise monitoring of shaft radial and axial displacement, position, eccentricity, and speed/key detection. For enhanced measurement ranges, extended converters like CON021/91x-xxx are compatible. Note: PR6425 always requires an extended range converter for proper operation.

Dynamic Performance

• Frequency Response: 0 – 20,000 Hz (-3 dB)

• Rise Time: < 15 µs

• Suitable for high-speed and transient applications, ensuring rapid and accurate signal conversion

Environmental Specifications

• Operating Temperature: -30°C to 100°C (-22°F to 212°F)

• Shock Resistance: 5g at 60 Hz (tested at 25°C / 77°F)

• Protection Rating: IP20

Electrical & Power Characteristics

• Supply Voltage Range:

• -23V to -32V for an output of -4V to -20V

• -21V to -32V for an output of -2V to -18V

• Electrical Connections:

• Transducer interface via self-locking Lemo plug

• Supply/output via screw terminal (max. 1.5 mm² wire)

Mechanical Features

• Housing Material: LMgSi 0.5 F22 aluminum alloy

• Weight: ~120 grams (4.24 oz)

• Mounting: 4 × M5x20 screws (included)

Applications

• High-precision monitoring in steam, gas, and hydro turbines

• Measurement of axial/radial shaft displacement and eccentricity

• Suitable for compressors, pumps, and high-speed rotating equipment

FAQ
Q: Can PR6425 operate without an extended range converter?
A: No, PR6425 requires the CON021/91x-xxx extended range converter for full operational range.

Q: What types of shafts can this sensor monitor?
A: The sensor is suitable for radial and axial shaft measurements, as well as eccentricity detection on rotating machinery shafts.

Q: Are there other PR Electronics models for comparison?
A: Yes, PR6422, PR6423, PR6424, PR6426, and PR6453 offer similar capabilities but differ in frequency range, rise time, and mechanical mounting options.

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Technical Specifications Table

Feature	Specification
Frequency Range	0 – 20,000 Hz (-3 dB)
Rise Time	< 15 µs
Operating Temp	-30°C to 100°C (-22°F to 212°F)
Shock & Vibration	5g @ 60 Hz, 25°C (77°F)
Protection Class	IP20
Supply Voltage	-23V to -32V (-4V to -20V output)-21V to -32V (-2V to -18V output)
Housing Material	LMgSi 0.5 F22
Weight	~120 grams (4.24 oz)
Mounting	4 × M5x20 screws
Connections	Transducer: Self-Locking Lemo PlugSupply/Output: Screw Terminal (max 1.5 mm² wire)

Specifications

• Brand: EMERSON

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems