Emerson EPRO PR6423-003-030-CN CON021 Signal Converter

The PR6423 Eddy Current Sensor is a non-contact displacement sensor designed for critical turbomachinery applications, including steam, gas, and hydro turbines, compressors, gearboxes, pumps, and fans. It measures radial and axial shaft displacement, position, eccentricity, and speed.

Specifications

Performance

Parameter	Specification
Linear Measurement Range	2 mm (80 mils)
Initial Air Gap	0.5 mm (20 mils)
Incremental Scale Factor (ISF)	8 V/mm (203.2 mV/mil) ± 5% @ 0 to 45°C (32 to 113°F)
Deviation from DSL	± 0.025 mm (± 1 mil) @ 0 to 45°C (32 to 113°F)

Measuring Target

Parameter	Specification
Minimum Shaft Diameter	25 mm (0.79″)
Target Material	42CrMo4 (AISI/SAE 4140) (Other materials on request)

Environmental and General

Parameter	Specification
Protection Class	IP66 (IEC 60529)
Operating Temperature Range	Sensor: -35 to +180°C (-31 to 356°F); Cable: -35 to +150°C (-31 to 302°F)
Material	Sensor Tip: PEEK; Case: Stainless Steel; Cable: PTFE; Connector: Brass (nickel-plated)
Weight	Approx. 100 grams (3.53 oz)

Model: CON021 Eddy Current Signal Converter

Functionality

The CON021 signal converter is designed for use with eddy current sensors, such as PR6423, to process signals for measuring radial and axial shaft displacement, position, eccentricity, and speed.

Specifications

Dynamic Performance

Parameter	Specification
Frequency Range (-3 dB)	0 to 20000 Hz
Rise Time	<15 µs

Environmental

Parameter	Specification
Operating Temperature Range	-30 to +100°C (-22 to 212°F)
Shock and Vibration	5g @ 60 Hz @ 25°C (77°F)
Protection Class	IP20

Power & Electrical

Parameter	Specification
Supply Voltage Range	-23V to -32V (Output: -4V to -20V)
	-21V to -32V (Output: -2V to -18V)

Physical

Parameter	Specification
Housing Material	LMgSi 0.5 F22
Weight	~120 grams (4.24 oz)
Mounting	4 Screws (M5x20, included)
Connections	Transducer: Self-locking Lemo-Plug; Supply/Output: Screw Terminal (max. 1.5 mm² wire)