Epro CON020/91 Signal Conditioner Module Driver

Product Description

The CON020/91 is a dedicated interface unit designed to operate as the electronic conditioning stage for Emerson EPRO eddy current proximity measurement chains. It converts raw probe signals into calibrated, stable electrical outputs used for vibration and displacement analysis in rotating machinery.

It is not a standalone sensor but a core part of a three-element architecture combining probe, extension cable, and conditioning electronics.

Measurement Architecture

Typical installation consists of:

• PR642x proximity probe (front-end sensing element)

• ECF extension cable (signal transmission link)

• CON020/91 conditioning module (signal processing unit)

This configuration ensures consistent calibration across turbine and compressor monitoring systems, maintaining stable measurement integrity under high dynamic load conditions.

Technical Characteristics

Signal Processing

• Eddy current excitation generation with stabilized oscillator circuit

• Linearization of probe response curve across operating range

• Low drift signal conditioning for long-term stability

Input Compatibility

• Designed for PR6422 / PR6423 / PR6424 / PR6426 probe families

• Supports multiple sensitivity configurations depending on system calibration

Output Behavior

• Scaled analog displacement signal (voltage or current depending on system integration)

• Typical sensitivity: 8 mV/µm (system dependent configuration)

Performance Range

• Measurement span: approximately ±1.0 mm to ±2.0 mm (probe dependent)

• Frequency response capability: up to 10 kHz

• Linearity deviation: within ±1% full-scale range

Electrical and Mechanical Data

• Power input: 24 V DC regulated supply

• Signal output: analog voltage or 4–20 mA (system dependent)

• Mounting format: DIN rail or panel installation

• Housing design: industrial-grade enclosure for rack integration

• Approximate dimensions: 100 × 22 × 120 mm (standard CON020 footprint)

Environmental Performance

• Operating temperature range: –35 °C to +85 °C

• Storage tolerance: –40 °C to +100 °C

• High immunity against electromagnetic interference in industrial environments

• Designed for continuous operation in vibration-prone machinery cabinets

Application Areas

• Steam and gas turbine monitoring systems

• Centrifugal compressors and industrial blowers

• High-speed rotating motors and generators

• Gearbox vibration diagnostics

• Petrochemical rotating equipment protection systems

• Condition monitoring and predictive maintenance platforms

Engineering Notes

The CON020/91 functions as a calibration-critical interface. Correct probe pairing and system matching are required to ensure accurate displacement scaling. It is commonly integrated into Emerson MMS and VM600-based monitoring racks where multi-channel vibration acquisition is required.

Frequently Asked Questions

Q1: Can the CON020/91 operate without a probe?
No. It requires an external eddy current probe and extension cable to function as part of a complete measurement chain.

Q2: Is calibration fixed or adjustable?
Calibration is system-defined and depends on the matched probe type and configuration variant.

Q3: What systems typically use this module?
It is widely deployed in turbine protection systems, compressor monitoring racks, and Emerson MMS/VM600 platforms.

Q4: Does it support different probe types?
Yes, it is compatible with multiple PR642x series probes, with configuration determined by the /91 variant setup.