Overview
The Epro PR6423/010-040 CON021 is an eddy current sensor configuration for non-contact displacement measurement. It has a 2 mm (80 mil) linear measurement range and an incremental scale factor (ISF) of 8 V/mm. The specified scale factor accuracy and linearity deviation apply within a temperature range of 0 to 45 deg C, while the sensor and its cable have separate operating temperature limits.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | PR6423/010-040 CON021 |
| Spare Model | PR6423/010-040 |
| Brand | Epro |
| Product Type | Eddy Current Sensor |
| Measurement Principle | Eddy current |
| 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) |
| ISF Tolerance | +/- 5% at 0 to 45 deg C (+32 to +113 deg F) |
| Deviation from Best-Fit Straight Line | +/- 0.025 mm (+/- 1 mil) at 0 to 45 deg C (+32 to +113 deg F) |
| Minimum Shaft Diameter | 25 mm (0.79 in), as listed |
| Sensor Temperature Range, Including 1 m Cable | -35 to +180 deg C (-31 to +356 deg F) |
| Cable and Connector Temperature Range | -35 to +150 deg C (-31 to +302 deg F) |
| Manufacturer | Epro |
| Country of Origin | Germany |
| Tariff Code | 8537101190 |
| Weight | 0.7 kg |
Measurement Characteristics
The sensor uses eddy current technology to measure the relative displacement of a conductive target without mechanical contact. In rotating machinery monitoring, this measurement principle can provide shaft displacement information for a compatible signal conditioning system.
The 2 mm linear measurement range defines the specified displacement span. The initial air gap of 0.5 mm is a separate setup parameter and should be considered when establishing the sensor-to-target position.
Scale Factor and Linearity
The incremental scale factor of 8 V/mm describes the change in output voltage relative to displacement when used with the applicable signal conditioning system. The specified +/- 5% tolerance and +/- 0.025 mm linearity deviation apply only within the stated 0 to 45 deg C temperature range.
These accuracy specifications should not be assumed to apply across the full temperature range listed for the sensor and cable. Confirm the complete measurement chain and its operating conditions when assessing system accuracy.
Temperature Limits
The supplied specifications list different temperature limits for the sensor assembly and the cable and connector. The sensor, including its 1 m cable, is rated from -35 to +180 deg C, while the cable and connector are rated from -35 to +150 deg C. The applicable limit for each component should be considered when selecting the installation location.
Frequently Asked Questions
Q: What is the linear measurement range of the PR6423/010-040 CON021?
A: The specified linear measurement range is 2 mm (80 mils), with an initial air gap of 0.5 mm (20 mils).
Q: What is the incremental scale factor of this sensor?
A: The specified incremental scale factor is 8 V/mm (203.2 mV/mil), with a tolerance of +/- 5% at 0 to 45 deg C. The stated linearity deviation is +/- 0.025 mm within the same temperature range.
Q: Can the sensor operate at temperatures up to 180 deg C?
A: The supplied data lists a maximum temperature of +180 deg C for the sensor including its 1 m cable. The cable and connector have a lower maximum rating of +150 deg C, so the temperature limits of individual components must be observed.
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