• Non-contact proximity probe using eddy current measuring principle.
• Linear range: 0 to 4mm.
• Frequency range: up to 500 Hz (-3dB).
• Constructed with stainless steel for chemical and mechanical rigidity and wear resistance.
• Includes a 10-meter integral cable.
• Operates on a +24VDC power supply, single-ended.

The RCP-004 displacement probe is designed for non-contact measurements of turbine runner clearance in large Francis or Kaplan turbines. It features a high-performance casing that allows for sealed mounting in turbine throat rings or labyrinths. The sensor body contains all signal processing, and the voltage output is directly proportional to the distance between the metallic target and the sensor face.

• Linear range: 0 to 4mm.
• Sensitivity: 2V/µm.
• Linearity (full scale): ± 2.5%.
• Minimum target size: ø15mm.
• Reference target materials include ST37-2K, VCL 140, X3CrNiMo13-4, C35E, 15NiCr13, and CA 6NM.
• Signal output: 2 to 10V.
• Resolution: Less than 1µm.
• Temperature stability: Less than 0.05%/°C.
• Power supply: +15VDC to +30VDC, with a maximum current consumption of 30mA.

• Operating temperature range: 0° to +55°C.
• Non-destructive temperature range: -20° to +70°C.
• Shock and vibration compliance: IEC 60947-5-2 / 7.4.
• Ingress protection: IP67.

• Sensor dimensions: M1 - 184 L x ø19.9 mm, M2 - 294.5 L x ø19.9 mm.
• Maximum insertion depth: M1 - 105 mm, M2 - 215 mm.
• Threaded part of the sensor: M24 x 1.5mm.
• Output cable dimensions: 10m x ø10mm.

• RCP-004 M1: Standard runner clearance probe, max insertion depth = 105mm, Ordering code: 05.004.000 M1.
• RCP-004 M2: Runner clearance probe with extended length, max insertion depth = 215mm, Ordering code: 05.004.000 M2.

• Brown: Power supply.
• Green: Voltage output.
• White: Signal common 0V.
• Black: Cable shield.