Overview
Configured for monitoring dynamic and static shaft displacement in turbomachinery applications, the Emerson PR6423/015-000-CN (PR6423 8mm Eddy Current Proximity Sensor) provides direct physical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PR6423/015-000-CN |
| Brand | Emerson (EPRO) |
| Origin | Germany |
| Weight | Approx. 100 grams |
| Dimensions | 8 mm sensor tip diameter |
| Operating Temp | Sensor: -35 deg C to +180 deg C; Cable: -35 deg C to +150 deg C |
| Power Consumption | Powered via companion driver converter |
| Linear Measurement Range | 2 mm (80 mils) |
| Initial Air Gap | 0.5 mm (20 mils) |
| Incremental Scale Factor | 8 V/mm (203.2 mV/mil) +/- 5% |
| Frequency Range | 0 to 20,000 Hz (-3 dB) |
4-20 mA HART Loop Protocol & DCS Instrumentation
Operating seamlessly within process control and distributed control system architectures, the device outputs analog displacement signals that interface directly with signal converters such as CON011, CON031, CON041, or EZ1000 series modules. Furthermore, channel isolation properties suppress ground loops and electromagnetic interference from surrounding high-voltage machinery. System integrators routinely configure monitoring layers using AMS 3000 series or CSI 6500 hardware platforms to validate loop integrity continuously.
Frequently Asked Questions
Q: What is the required initial air gap voltage setting during calibration?
A: Technicians must adjust the mechanical gap until the static output reaches the nominal -10 VDC operating point corresponding to the 0.5 mm initial air gap.
Q: Can the coaxial extension cable be shortened or spliced in the field?
A: No. Altering the cable length changes the total electrical capacitance and invalidates the factory-calibrated Incremental Scale Factor of 8 V/mm.
Field Installation Guidelines
Mount the 8mm eddy current probe securely into the machinery bracket, ensuring minimum shaft diameter clearances of 25 mm are maintained to prevent edge effect distortions. Route the PTFE-insulated coaxial cable away from high-current power lines and frequency converter outputs to minimize noise pickup. Finally, verify shield continuity at the monitoring rack termination point while maintaining isolation at the sensor body to prevent ground loops.
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