EPRO PR9350/02 LVDT Inductive Displacement Sensor ±25mm Thermal Expansion Transducer

EPRO PR9350/02 is a precision contact-type LVDT inductive linear displacement transducer from EPRO (Emerson AMS), belonging to PR9350 series, widely used for turbine casing thermal expansion, shaft axial position and static/dynamic linear movement measurement in turbomachinery protection systemsEmerson. Unlike eddy current proximity probes, PR9350 series works on differential inductive principle with a ferromagnetic plunger inside the coil body, delivering stable displacement signal for slow thermal growth and low-frequency dynamic movement monitoring.

This model features nominal measuring range ±25 mm, sensitivity 270 mV/V, excitation 5 Vrms at carrier frequency 3–5 kHz. Its built-in temperature compensation coil greatly reduces thermal drift, small hysteresis and negligible contact force on the measured target, so it will not interfere with the mechanical movement of turbine casing or bearing pedestalEmerson. Dynamic response supports up to 1250 Hz, suitable for both static thermal expansion tracking and low-frequency dynamic displacement capture.

PR9350/02 is hermetically sealed construction. Operating temperature range is -20°C ~ +120°C. It is normally paired with EPRO MMS6410 LVDT monitoring module as the standard cylinder expansion measurement chain for steam turbines, gas turbines and large compressors. Raw differential signal requires carrier-frequency signal conditioner, it cannot directly connect to vibration input channels of MMS3000 or MMS6000 vibration modules.

Net weight of PR9350/02 is 255g, max outer diameter 25.4mm, standard with threaded plunger and connector interface. The PR9350 series has multiple range variants for selection: PR9350/01 (±12mm), PR9350/02 (±25mm), PR9350/04 (±50mm), PR9350/06 (±75mm), PR9350/08 (±100mm), PR9350/12 (±150mm). You can pick proper model according to your expected thermal expansion stroke.

Typical application scenarios of EPRO PR9350/02: steam turbine casing thermal expansion (cylinder expansion), gas turbine pedestal growth, bearing housing axial shift, valve stem position, heavy machinery structural displacement. It continuously monitors thermal growth to detect uneven heating, foundation settlement, casing jam and abnormal axial movement, supporting machinery protection and predictive maintenance strategy.

We supply genuine EPRO PR9350/02 LVDT displacement sensor, stock available. We can provide official datasheet, COO certificate, factory test report and 12-month warranty. Send inquiry for compatibility cross-check with MMS6410, matching extension rod, spare connectors and bulk pricing.

Bullet Points

• Model: PR9350/02
• Brand: EPRO (Emerson AMS)
• Type: Contact LVDT inductive linear displacement transducer
• Measuring range: ±25 mm
• Sensitivity: 270 mV/V
• Excitation: 5 Vrms, carrier frequency 3–5 kHz
• Max dynamic frequency: 1250 Hz
• Operating temperature: -20°C ~ +120°C
• Feature: Built-in temperature compensation, low hysteresis, low contact force
• Compatible module: EPRO MMS6410 LVDT monitor
• Construction: Hermetically sealed
• Net weight: 255 g
• Origin: Germany
• Typical use: Turbine cylinder thermal expansion, casing growth, shaft axial position monitoring

FAQ

Q: What is PR9350/02 used for? A: EPRO PR9350/02 is ±25mm LVDT displacement sensor, mainly for steam turbine casing thermal expansion / cylinder expansion measurement, matched with MMS6410 monitoring rack.

Q: What is the difference between PR9350/02 and PR9350/04? A: PR9350/02 measuring range ±25 mm; PR9350/04 is ±50 mm. Both share the same 270 mV/V sensitivity and working principle.

Q: Can PR9350/02 connect directly to MMS3000 vibration input? A: No. It is LVDT signal, must use MMS6410 dedicated LVDT conditioner module, not vibration velocity or eddy current channel.

Q: Is PR9350/02 non-contact sensor? A: No, it is contact-type LVDT transducer with plunger touching the measuring surface, different from PR642x eddy current non-contact probes.

Our products are widely used in CNC mechanical metallurgy, petroleum and natural gas, and petrochemical industries,Chemical industry, paper and printing, textile printing and dyeing, machinery, electronic manufacturing, automobile manufacturing,Plastic machinery, electricity, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution.The quoted price is not the actual price. Please contact the shopkeeper before placing the order to confirm the price and delivery time!!!

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