SHINKAWA VW-202AL-8 Axial Displacement Sensor

SHINKAWA VW-202AL-8 Axial Displacement Sensor

The SHINKAWA VW-202AL-8 is an industrial-grade non-contact eddy-current displacement sensor probe manufactured by Shinkawa Electric Co., Ltd. Specially designed for non-contact axial position monitoring, thrust bearing wear tracking, and shaft displacement measurements, this sensor delivers continuous high-precision signal feedback in heavy rotating equipment to prevent catastrophic mechanical contact.

Product Introduction / Overview

Operating on the non-contact eddy-current measurement principle, the SHINKAWA VW-202AL-8 displacement sensor monitors minute axial movements of critical machinery shafts relative to stationary casings. When paired with a matching Shinkawa converter or driver (such as the VK series), it converts physical shaft displacement into standardized voltage or current signals, serving as an essential sensor component in API 670-compliant machinery protection systems.

Primary Function: Continuous non-contact axial displacement, thrust position, and shaft position measurement.

Target Machinery: Steam turbines, gas turbines, boiler feed pumps, industrial turbocompressors, blowers, and large electric generators.

Technical Table

Environmental Tolerance Conditions

Operating Instructions

Safety Protocol: Lock out power to the target machinery and verify the shaft is fully stopped before installation.

Mounting: Thread the probe body into an internal bracket or penetration sleeve. Avoid over-torquing the body thread.

Gap Calibration: Adjust the distance between the probe tip and target shaft face until the output gap voltage matches the system mid-scale value (typically -10.0 V DC at the driver test points).

Locking: Tighten the locknut firmly to prevent probe drift caused by machinery operation.

Connection & Shielding: Connect the coaxial output lead to the extension cable, protecting the junction with insulating heat-shrink tubing to avoid ground loops.

Fault Diagnosis

Related Models of the Same Series

SHINKAWA VW-202AL-5 (5 mm tip variant for tight mounting spaces)

SHINKAWA VL-202A08L-1A42 Eddy-Current Vibration Sensor Probe

SHINKAWA VK-202A Eddy-Current Displacement Driver / Transmitter

SHINKAWA VK-1422 Signal Conditioner Unit

SHINKAWA FRP-338 / FRP-320 Rack-Mounted Monitoring Modules

Storage Conditions

Storage Temperature: -20°C to +70°C (-4°F to 158°F)

Storage Humidity: 5% to 95% RH (Non-condensing)

Packaging: Moisture-proof anti-static ESD bag with desiccant.

Environment: Dry, climate-controlled warehouse isolated from corrosive vapors, high magnetic fields, and direct mechanical shock