SEN X Series Eddy Current Transducers
• LED indication of selected length.
• Double screened cable for high noise immunity.
• Snap lock and shake proof cable connection.
• Low profile driver for easy local integration to machine.
• Excellent repeatability on replacement of probe, extension or driver.
• Compliant with standard API 670.
• Multi Hazardous Area Approved.
• Designed for Reliability, Accuracy and Flexibility.
Description
The SEN X Series eddy current transducer systems consist of a calibrated probe,
extension cable and driver. Utilising the eddy current principle, this combination forms
a tuned circuit with the target material and variations in probe face to target distance
are detected in this circuit by the driver, providing a linearised voltage output
proportional to target gap. This measurement system provides highly accurate
(resolution typically less than one micro-meter) vibration and relative positional
measurements, for harsh environments up to 180 °C.
The driver unit offers a front panel green LED for indicating the system length. The
cable system incorporates snap lock connectors which require no torquing and provide
a shake proof solution important for heavy industrial applications. The double screened
cable offers robustness in combination with high immunity to interference and optional
stainless steel convoluted armour is available for applications or environments where
cable protection is paramount.
General Information
STRAIGHT MOUNT PROBES
• Suitable for shaft vibration and shaft / thrust position measurements.
• Robust stainless steel threaded case in various lengths and threads.
• Encapsulated tip impervious to oil or water ingress.
• Measurement ranges of 2.5 mm, 4.0 mm and 8.0 mm.
• Supplied with free running locknut for forward or reverse mounting
• Intrinsically safe options available.
• Choice of cable lengths with or without armouring connecting directly to driver unit or to extension cable.
• Operating temperature range, -30 °C to +180 °C.
PROBESREVERSE MOUNT PROBES
• Suitable for shaft vibration and shaft / thrust position measurements.
• Robust stainless steel threaded case with integral locknut.
• Measurement ranges of 2.5 mm and 4.0 mm.
• Suitable for reverse mounting into a standard probe holder.
• Encapsulated tip impervious to oil or water ingress.
• Intrinsically safe options available.
• Choice of cable lengths with or without armouring connecting directly to driver unit or to extension cable.
• Operating temperature range, -30 °C to +180 °C.
DISC PROBES
• Suitable for a range of rotor expansion and shaft position measurements.
• Robust stainless steel body with 2 or 3 mounting holes.
• Measurement ranges of 12.0 mm and 30.0 mm.
• Encapsulated tip impervious to oil or water ingress.
• Range of adjustable bracketry available for standard and dual probe mounting for steam turbine differential
expansion measurement applications.
• Choice of cable lengths with or without armouring connecting directly to driver unit or to extension cable.
• Operating temperature range, -30 °C to +180 °C.
EXTENSION CABLES
• Triaxial 75Ohm Coaxial
• Double screened cable with snap lock connectors.
• FEP outer jacket with 3.2 mm outer diameter.
• Available in ‘tuned’ lengths of 3.5 m, 4.0 m, 4.5 m, 6.0 m, 6.5 m, 7.5 m, 8.0 m and 8.5 m. With or without
stainless steel convoluted armouring.
• Excellent system repeatability on replacement of extension cable.
• Operating temperature range, -30 °C to +180 °C.
DRIVER UNITS – Voltage Output
• 5 m, 7 m and 9 m systems with LED indication.
• Low profile for easy local integration.
• Universal mounting with both DIN rail and Baseplate.
• -16.0 Vdc to -28.0 Vdc power supply range.
• API 670 compliant interface.
• Operating temperature range -30 °C to +90 °C.
Datasheets: SEN X Series Eddy Current Transducers Iss1.0.pdf
