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

Name: XIYUAN S31D20 Integrated Speed &amp; Temperature Sensor - 4-20mA RMS Output, IP65, Stainless Steel
Brand: XIYUAN
SKU: SENS-3373
Price: 16349.00 INR
Availability: OutOfStock

₹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

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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

Parameter	Specification
Model	S31D20
Sensing Parameters	Vibration Velocity, Temperature
Vibration Velocity Range	0 – 20 mm/s
Temperature Range	-40°C to +85°C
Output Signal	4–20mA RMS
Supply Voltage	15 – 30 VDC
Frequency Response	10 – 1000 Hz (±1 dB)
Protection Rating	IP65
Housing Material	Stainless Steel
Shock Resistance	Up to 2000g
Connector	MIL Two-Core Socket
Mounting	M6 Bolt
Dimensions (L x W)	55 mm x 30 mm
Weight	80 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.