Overview
The Emerson EPRO CON021/916-120 + PR6426/010-110, also cataloged as the CON021/916-120 + PR6426/010-110 Eddy Current Sensor System, provides non-contact shaft displacement and vibration measurement for EPRO machinery monitoring systems. The sensor chain converts probe gap changes into electrical signals for TSI monitoring circuits.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CON021/916-120 + PR6426/010-110 |
| Brand | Emerson EPRO |
| Product Type | Eddy Current Displacement and Vibration Monitoring Kit |
| Origin | Germany |
| Weight | 0.6 kg |
| Dimensions | 25 x 23 x 4.5 cm (estimated shipping size) |
| Operating Temp | PR6426 Sensor: -35 deg C to +180 deg C |
| Power Consumption | Converter power consumption data not provided |
| Sensor Type | 32 mm Eddy Current Proximity Sensor |
| Application Function | Shaft displacement, relative vibration, and differential expansion measurement |
| Probe Diameter | 32 mm |
| Cable Length | 5 m armored cable |
| Cable Connection | LEMO connector, without adapter plug |
| Mounting Style | 80 x 40 mm mounting plate, unthreaded configuration |
| Measuring Range | Up to 8 mm standard range |
| Dynamic Sensitivity | 2 V/mm (50.8 mV/mil), maximum deviation +/-1.5% |
| Nominal Air Gap | Approx. 5.5 mm |
| Target Material | Ferromagnetic steel, standard 42 Cr Mo 4 |
| Frequency Response | 0 to 20 kHz (-3 dB) |
EPRO Eddy Current Measurement Characteristics
The PR6426/010-110 probe detects shaft position changes through eddy-current measurement technology. The probe generates a high-frequency field near the target surface, and the gap variation changes the electrical response. Additionally, the CON021/916-120 converter processes this signal and provides a scaled output for the monitoring system.
For TSI applications, engineers verify eddy-current probe scaling, gap voltage values, and signal direction during installation. Furthermore, rotor dynamics analysis requires stable vibration signals and correct probe alignment. Proper cable shielding and separation from power wiring help reduce signal interference.
The CON021 converter supports signal conditioning between the sensor probe and the monitoring interface. Therefore, the system can provide continuous displacement and vibration feedback for rotating equipment protection and analysis.
Frequently Asked Questions
Q: What measurement principle does the PR6426/010-110 use?
A: The PR6426/010-110 uses eddy-current technology to measure the distance between the probe tip and a conductive target surface. The sensor detects displacement changes through variations in the electromagnetic field.
Q: What role does the CON021/916-120 converter perform in the measuring chain?
A: The CON021/916-120 converts the probe signal into a scaled electrical output. The output allows connected monitoring equipment to process shaft displacement and vibration data.
Q: What installation checks are required for this sensor system?
A: Before operation, verify probe alignment, cable connection, signal polarity, and measurement gap. In addition, maintain proper cable shielding and grounding practices.
Field Installation Guidelines
Install the PR6426/010-110 probe according to the mechanical mounting requirements of the application. Ensure that the probe face maintains the correct position relative to the measurement target.
During wiring, route the armored sensor cable away from high-current power cables and sources of electromagnetic interference. Also, maintain shielding continuity between the probe cable and monitoring equipment.
Before startup, check the converter connection, signal output direction, and probe response. Additionally, verify the measurement system calibration before placing the machinery into normal operation.
Install the CON021/916-120 converter in a clean industrial environment that matches the equipment requirements. Avoid unnecessary cable extensions or wiring modifications that may affect measurement accuracy.
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