Shinkawa VL-202A08R-2012/EX5 Displacement Sensor
Overview
The Shinkawa VL-202 sensor, type VL-202A08R-2012/EX5, is an eddy current displacement sensor belonging to the VK-202A transducer system, documented in the official VK-A series instruction manual (no. 20801E1.0). The complete system consists of the VL sensor, the VW extension cable and the VK driver, and measures the gap to a metallic target without physical contact.
Shinkawa eddy current transducers protect turbines, compressors and generators in power plants worldwide. This Shinkawa VL-202 sensor variant with the /EX5 suffix is the explosion-proof sensor configuration, making it a direct spare for hazardous-area machine trains.
Engineering & Design
According to the official VK-202A transducer instruction manual, the system utilizes eddy currents and measures the gap between the VL sensor and the measured object without physical contact, outputting a voltage signal proportional to distance. It offers a linear range of 2000 μm (approximately 80 mils) for JIS SCM440 (AISI 4140 steel) as the standard calibration material.
The Shinkawa VL-202 sensor mounts in the machine bearing housing with a defined air gap to the shaft, and the VW extension cable routes the high-frequency signal to the VK-202A driver, which converts it into a DC output proportional to the gap. The manual covers sensor installation accessories, mounting procedures, typical standard conduit arrangements and probe mounting arrangements, plus the standard static characteristic and frequency characteristic data used to verify the system. It also documents the required warm-up of more than 30 minutes before data collection, and the insulation and shielding rules that keep the eddy current signal clean in industrial environments.
The VK-202A system is described as the most suitable design for measuring high-speed shaft vibration, eccentricity and thrust position. Field wiring from the driver to the connecting instrument generally uses 3-wire shielded cable and can be extended up to 500 m maximum. The manual also specifies installation details such as connector insulation sleeves and warm-up requirements of more than 30 minutes before data collection.
Key Features
- Shinkawa VL-202 sensor – VL-202A eddy current displacement sensor (VK-202A system)
- Non-contact gap measurement with voltage output proportional to distance
- Linear range 2000 μm (approx. 80 mils) on JIS SCM440 (AISI 4140)
- Explosion-proof /EX5 configuration for hazardous areas
- 3-wire shielded output, extendable up to 500 m
- Covered by official manual no. 20801E1.0 (Aug 2008)
Applications
- High-speed shaft vibration monitoring on turbines
- Thrust position and eccentricity measurement on compressors
- Vibration monitoring on pumps, blowers and generators
- Replacement of worn sensors in Shinkawa VM-5/VM-7 monitor systems
Specifications
| Manufacturer | Shinkawa Electric Co., Ltd. |
| Sensor | VL-202A08R-2012/EX5 eddy current displacement sensor |
| System | VK-202A transducer (VL sensor, VW extension cable, VK driver) |
| Principle | Eddy current, non-contact |
| Linear range | 2000 μm (approx. 80 mils), JIS SCM440 (AISI 4140) |
| Output | Voltage proportional to distance; 3-wire shielded, up to 500 m |
| Configuration | -2012/EX5 (explosion-proof variant) |
| Manual | VK-A series, no. 20801E1.0, Aug 2008 |
Compatibility
The Shinkawa VL-202 sensor mates with the VW extension cable and VK-202A driver to form a complete VK-202A transducer system, and connects to Shinkawa vibration monitors or compatible third-party monitoring inputs.
Ordering Information
Order the Shinkawa VL-202 sensor, type VL-202A08R-2012/EX5, as a direct replacement for the original sensor in your Shinkawa vibration train. Verify the cable length and connector configuration of your installation before ordering.
The VL-202A08R-2012/EX5 sensor measures the shaft vibration with the eddy current principle, and the sensor cable and the connector are matched to the Shinkawa driver unit.
The eddy current sensor chain covers the gap setting range of the standard vibration probe installation.
Why Seven Star LLC
Seven Star LLC supplies Shinkawa vibration spares to rotating machinery teams across Oman and the GCC. Each VL-202 sensor is verified against the original part number and
Seven Star LLC maintains a regional inventory in Muscat and coordinates directly with manufacturers across Europe and Asia. Our engineers help you verify the exact model and revision before ordering, avoiding costly mismatches.
Request a Quote for Shinkawa VL-202A08R-2012/EX5 Displacement Sensor
For the Shinkawa VL-202 sensor or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your measurement range, connection and configuration, and our specialists will respond with a detailed commercial proposal and the official Shinkawa documentation.
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