Eddy Current Probe Sensor | 8 mV/µm | 0-2mm
The Monitran DS0023 industrial eddy current sensor is designed for critical applications in displacement monitoring on rotating machinery. Its architecture combines a stainless steel probe with a high-resolution sensing coil, optimized for measuring displacements in the 0 to 2 mm range with a nominal sensitivity of 8 mV/µm. Eddy current technology enables non-contact detection, ideal for harsh environments where mechanical interference is unacceptable. The probe is equipped with a PEEK tip, resistant to high temperatures and chemicals, and an RG179 cable with PTFE insulation, allowing a maximum length of 9 meters without signal loss. Its modular design allows for adaptations such as 4-20 mA outputs, custom ranges, and submersible versions.
The sensor's operation is based on the variation of inductance in the sensing coil when it interacts with the calibrated material (AISI 4140). The linearity of the 1% ensures accuracy in displacement applications for turbines, pumps, and machine tools. Its DC operating frequency of up to 10 kHz allows for a dynamic response to high-frequency vibrations. The operating temperature range of -30 °C to +180 °C, combined with lower thermal sensitivity than the 5% under extreme conditions, ensures stability in harsh industrial environments. The output impedance of less than 50 ohms facilitates integration into high-precision control systems.
Dual Engineering Audit (FAQ)
The sensor's thermal sensitivity remains lower than that of the 5% under extreme operating conditions: less than the 5% at 150 °C in the probe and less than the 5% at 80 °C in the driver. This is achieved through the use of heat-resistant materials (PEEK in the tip and stainless steel in the body) and a reference calibration on AISI 4140, which minimizes thermal drift in harsh industrial applications.
The PTFE (polytetrafluoroethylene) insulation in RG179 cable offers excellent chemical, thermal, and electrical resistance, allowing operation in high-temperature environments (up to +180 °C) and exposure to corrosive agents. Furthermore, its low dielectric constant reduces signal attenuation, maintaining measurement integrity at distances of up to 9 meters without the need for repeaters.
Properties
| Power Supply | -24 VDC @ 30 mA |
| Nominal Sensitivity | 8 mV/µm |
| Linear Range | 0 to 2 mm |
| Linearity | 1% nominal |
| Frequency Range | DC at 10 kHz |
| Operating Temperature (Probe) | -30 °C to +180 °C |
| Temperature Sensitivity (Probe) | Less than 5% at 150 °C |
| Tip Material | Peek |
| Body Material | Stainless steel |
| Wire | RG179 PTFE insulated |
| Maximum Cable Length | 9 meters |
| Calibration Material | AISI 4140 |
| Options | 4-20 mA, custom range, submersible, custom design, cable length |
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