QAWRUMS GSI150 Intrinsically Safe AE Sensor >73dB, 150kHz, SMA Connector

Name: QAWRUMS GSI150 Intrinsically Safe AE Sensor &gt;73dB, 150kHz, SMA Connector
Brand: QAWRUMS
SKU: SENS-0001
Price: 184249.00 INR
Availability: OutOfStock

₹184,249.00 (Inclusive of all taxes)

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The QAWRUMS GSI150 is an intrinsically safe Acoustic Emission (AE) sensor designed for hazardous area monitoring. Featuring a 150kHz resonant frequency and a built-in 26dB preamplifier, it delivers high-sensitivity detection of structural cracks and faults for integration with industrial condition monitoring systems.

Features

Intrinsically safe, explosion-proof design certified for hazardous environments.
High sensitivity >73dB with a resonant frequency of 150kHz (60kHz-400kHz range).
Integrated 26dB, 5V preamplifier on a 1-meter RG178 cable for stable, low-noise signal transmission.
SUS-304 stainless steel housing and ceramic sensing face for operation up to 170°C.
IP68-rated for protection against dust and long-term water immersion.

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Description

The GSI150 Acoustic Emission Sensor employs a piezoelectric ceramic element to detect high-frequency stress waves generated by crack propagation, friction, or leakage in metallic structures. The integrated preamplifier conditions the weak AE signal directly at the sensor head, minimizing noise pickup over the 1-meter coaxial cable to the SMA output connector.

Constructed with a SUS-304 stainless steel shell and a high-sensitivity ceramic face, the sensor maintains performance in extreme temperatures up to 170°C. Its intrinsically safe and explosion-proof design, coupled with an IP68 environmental seal, ensures reliable operation in harsh industrial settings such as oil & gas refineries, chemical plants, and power generation facilities.

Key Features

Intrinsically Safe & Explosion-Proof Certified for Zone 0/1 hazardous areas.
Integrated Low-Noise Preamplifier: 26dB gain, 5V powered, mounted directly on sensor.
High-Temperature Durability: SUS-304 stainless steel housing withstands up to 170°C.
Optimized Acoustic Response: 150kHz resonant frequency with a broad 60kHz to 400kHz bandwidth.
Superior Environmental Sealing: IP68 rating protects against dust ingress and prolonged water immersion.
Stable Signal Transmission: 1-meter RG178 coaxial cable with SMA connector ensures minimal signal loss.
High-Sensitivity Ceramic Sensing Element for precise detection of micro-cracks and structural defects.
Lightweight, Compact Design for versatile mounting on pipelines, pressure vessels, and structural components.

Applications

Continuous structural health monitoring (SHM) of pipelines, pressure vessels, and storage tanks in oil & gas facilities.
Early crack detection and fault localization in bridges, offshore platforms, and wind turbine foundations.
Leak detection and mechanical integrity monitoring in chemical and power plant process equipment.
Acoustic emission testing (AET) and non-destructive evaluation (NDE) of welded joints and critical metallic components.
Condition-based maintenance and predictive failure analysis in hazardous, explosion-prone industrial zones.

Technical Specifications

Model Number	GSI150
Sensor Type	Intrinsically Safe Acoustic Emission (AE) Sensor
Resonant Frequency	150 kHz
Frequency Range	60 kHz - 400 kHz
Sensitivity	>73 dB (ref. 1 V/(m/s))
Built-in Preamplifier	Yes, 26 dB gain, 5 V
Output Connector	SMA
Cable	1-meter RG178 coaxial
Housing Material	SUS-304 Stainless Steel
Sensing Face Material	Ceramic
Protection Rating	IP68
Operating Temperature	-20°C to +170°C
Weight	0.026 kg (Sensor)

Frequently Asked Questions

What is the purpose of the built-in preamplifier on the GSI150 sensor?

The integrated 26dB, 5V preamplifier amplifies the weak acoustic emission signal directly at the sensor head. This significantly improves the signal-to-noise ratio before transmission through the 1-meter cable to the data acquisition system, minimizing interference and ensuring accurate detection of micro-cracks and structural faults.

What types of environments is the GSI150 sensor certified for?

The GSI150 is designed as an intrinsically safe and explosion-proof sensor, making it certified for use in hazardous areas (such as Zone 0/1) where flammable gases or dust may be present. Combined with its IP68 rating and high-temperature stainless steel housing, it is suitable for harsh industrial environments like oil refineries, chemical plants, and offshore platforms.

How do I power and interface with the GSI150 AE sensor?

The sensor's integrated preamplifier requires a 5V DC power supply, which is typically provided through the same coaxial cable by compatible AE data acquisition units or conditioners. The output is a conditioned AE signal available via the SMA connector. Ensure your acquisition system supports ICP/IEPE-type constant current power for proper operation.

What is the mounting procedure for this acoustic emission sensor?

For optimal acoustic coupling, mount the sensor directly onto the clean, flat surface of the metallic structure using a suitable couplant gel or epoxy. The ceramic sensing face must be in full contact with the surface. The SUS-304 housing allows for permanent or temporary mounting in high-temperature applications up to 170°C.