Monitoring acoustic emission sensor GH150/1

measurementpiezoelectricmagnetic

Description
GH150/1 (Magnetic) is a high-temperature acoustic emission (AE) sensor developed for structural monitoring and non-destructive testing (NDT) in harsh industrial environments up to 350°C. It provides a 170 kHz resonant frequency, stainless/Invar metal contact surfaces, IP68 protection, an integral BNC cable and magnetic or clamp mounting options. The unit features a 20 cm heat-resistant metal tube and a 3 m cable with a bottom magnetic mount suited to temporary testing, field inspection and monitoring of hot metallic structures.

Features

• Resonant frequency: 170 kHz
• Frequency range: 30 kHz – 400 kHz
• Operating temperature: -45°C to 350°C
• IP68 protection
• Integral BNC connector on cable (side location)
• Stainless / Invar metal contact face and stainless/Invar/copper case materials
• Heat-resistant 20 cm metal tube and 3 m cable
• Magnetic base mounting (self-magnetic) with options for clamp, cable tie or free-mounted rod

Typical use cases

• Temporary AE inspection on hot metallic structures
• Field testing where magnetic or clamp mounting is preferred
• AE monitoring applications requiring operation up to 350°C (pipelines, pressure vessels, plant equipment)
• Hot metallic structure inspection and process equipment condition monitoring
• Temporary field testing and troubleshooting

Installation notes
Proper installation is important for repeatable AE signal detection, especially at high temperatures. Recommended practices include:

• Clean the mounting surface before installation
• Confirm the actual surface temperature is within the sensor working range
• Use magnetic mounting only when holding force is sufficient for surface temperature and vibration conditions
• For long-term mechanical stability, consider custom clamp, cable tie or free-mounted rod instead of magnetic mounting
• Avoid direct cable tension, sharp bending or mechanical impact near the sensor
• Verify the channel response before formal testing or long-term monitoring

Accessories & compatibility

• Signal cable models: SYV-50-3 / STYV-50-2
• Hold-down options: Self-magnetic / cable tie / custom clamp / free-mounted rod
• Compatible preamplifiers: PAS, PAV

Notes
This sensor is NOT recommended for mounting positions continuously above 350°C. For higher-temperature surfaces, consider waveguide-based installation or a special high-temperature sensor solution. For long-term magnetic installations at very high temperature, check surface temperature, magnetic holding force, vibration, cable routing and mounting direction before deployment.

Technical specifications

• Model: GH150/1 (Magnetic)
• Resonant Frequency (Ref V/(m/s)): 170 kHz
• Frequency Range: 30 kHz - 400 kHz
• Sensitivity Peak (Ref V/(m/s)): >55 dB
• Working Temperature: -45°C to 350°C
• Size (DxWxH): 30 × 40 × 10.5 mm
• Weight: 200 g
• Case Material: Stainless Invar Steel / copper
• Face Material: Stainless Invar Steel / copper
• Protecting Grade: IP68
• Connector: BNC on integral cable
• Connector Location: Side
• Cable Length: 3 m
• Heat-resistant Metal Tube Length: 20 cm
• Accessories: Signal cable SYV-50-3 / STYV-50-2; Hold-down: Self-magnetic / cable tie / custom clamp / free-mounted rod; Preamplifier: PAS / PAV