SKU: SENS-3373
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XIYUAN S31D20 Integrated Speed & Temperature Sensor - 4-20mA RMS Output, IP65, Stainless Steel

₹16,349.00 (Inclusive of all taxes)
Out of Stock

The XIYUAN S31D20 is an industrial piezoelectric vibration and temperature sensor delivering a 4-20mA RMS current output for direct integration with PLCs, DCS, and SCADA systems. It provides continuous monitoring of absolute vibration velocity (0-20 mm/s) and ambient temperature (-40°C to +85°C) for predictive maintenance in harsh industrial environments.

Features

  • Integrated piezoelectric sensor measures vibration velocity (0-20 mm/s) and temperature (-40°C to +85°C)
  • Industry-standard 4-20mA RMS current loop output for robust, noise-immune signal transmission
  • IP65-rated stainless steel housing ensures dust-tight and splash-proof operation
  • Wide frequency response from 10 Hz to 1000 Hz (±1 dB) for comprehensive machine monitoring
  • High shock resistance (up to 2000g) and operates from a 15-30 VDC supply

Out of stock

Description

The XIYUAN S31D20 employs a piezoelectric sensing element to convert mechanical vibration into a proportional electrical signal, specifically measuring absolute vibration velocity. A built-in temperature sensor provides simultaneous ambient temperature readings. The dual-parameter data is conditioned into a single, industry-standard 4-20mA RMS current output, ensuring high signal integrity over long cable runs in electrically noisy industrial settings.

Housed in a robust stainless steel shell with an IP65 protection rating, the sensor is designed for continuous operation in demanding environments from -40°C to +85°C. Its compact form factor, M6 bolt mounting, and MIL two-core socket compatibility facilitate straightforward installation on motors, pumps, compressors, and other rotating machinery for condition-based monitoring and predictive maintenance programs.

Key Features

  • Dual-Parameter Sensing: Simultaneously outputs vibration velocity and temperature data on a single 4-20mA loop.
  • Industrial-Grade Output: 4-20mA RMS current signal provides inherent noise immunity and is compatible with standard PLC analog input modules.
  • Rugged Environmental Protection: IP65-rated stainless steel construction resists dust, water jets, and corrosive industrial atmospheres.
  • Broad Dynamic Range: 10 Hz to 1000 Hz frequency response captures critical vibration spectra for early fault detection.
  • High Shock Survivability: Withstands mechanical shocks up to 2000g, ensuring reliability in high-vibration applications.
  • Extended Temperature Operation: Functions reliably across an extreme ambient range from -40°C to +85°C.
  • Simplified Installation: Features M6 threaded mounting and a standard MIL two-core socket for quick connector attachment.
  • Optimized Performance-to-Cost Ratio: Delivers reliable, dual-parameter monitoring in a durable package suited for industrial deployment.

Applications

  • Continuous vibration and temperature monitoring for predictive maintenance of industrial motors, pumps, and fans.
  • Fault detection and condition assessment in gearboxes, compressors, and centrifugal machinery.
  • Health monitoring of rotating equipment in power generation plants, including turbines and generators.
  • Integration into SCADA and PLC-based systems for automated alarm triggering in manufacturing facilities.
  • Condition monitoring of heavy machinery in mining, cement, and pulp & paper industries.

Technical Specifications

ParameterSpecification
ModelS31D20
Sensing ParametersVibration Velocity, Temperature
Vibration Velocity Range0 – 20 mm/s
Temperature Range-40°C to +85°C
Output Signal4–20mA RMS
Supply Voltage15 – 30 VDC
Frequency Response10 – 1000 Hz (±1 dB)
Protection RatingIP65
Housing MaterialStainless Steel
Shock ResistanceUp to 2000g
ConnectorMIL Two-Core Socket
MountingM6 Bolt
Dimensions (L x W)55 mm x 30 mm
Weight80 g

Frequently Asked Questions

What is the power supply requirement for the S31D20 sensor?

The S31D20 requires a 15-30 VDC loop power supply. This supply voltage powers both the sensor's internal electronics and establishes the 4-20mA current loop. Ensure your PLC analog input module or signal conditioner can provide this voltage range within the loop.

How do I interpret the 4-20mA output signal?

The output is a 4-20mA RMS current proportional to the measured vibration velocity (0-20 mm/s) and temperature (-40°C to +85°C). Typically, 4mA corresponds to the minimum measurable value (or a fault condition, depending on configuration), and 20mA corresponds to the full-scale value. You will need a 250-ohm precision resistor at your PLC input to convert this current to a 1-5V signal for reading.

Is this sensor suitable for outdoor or washdown environments?

Yes, the sensor's IP65 rating makes it dust-tight and protected against water jets from any direction. Combined with its stainless steel housing and wide operating temperature range (-40°C to +85°C), it is well-suited for outdoor installations and environments requiring occasional washdown, though it is not submersible.

What mounting method is recommended for accurate measurements?

For optimal high-frequency response, mount the sensor directly to the machine housing using the provided M6 bolt into a tapped hole. Ensure the mounting surface is clean, flat, and free of paint or debris. The connection is made via the integrated MIL two-core socket using the supplied cable.

Package Includes

  • 1 x XIYUAN S31D20 Integrated Speed & Temperature Sensor
  • 1 x Connection Cable

Additional Information

Weight 0.08 kg
Dimensions 5.5 × 3 cm