Process monitoring acoustic emission sensor GH150

crack detectionfor predictive maintenancefor metal structure inspection

Description
The GH150 (Magnetic) is an ultra‑high temperature acoustic emission (AE) sensor designed for structural monitoring and non‑destructive testing on hot metallic surfaces up to 600 °C. It features a 260 kHz resonant frequency, stainless Invar contact surfaces, IP68 protection, a 20 cm heat‑resistant metal tube protecting the cable entry, and a 3 m integral BNC cable. Multiple hold‑down options are available including self‑magnetic base, cable tie, custom clamp and free‑mounted rod.

Features

• 260 kHz resonant frequency
• Self‑magnetic base option for temporary mounting
• 20 cm heat‑resistant metal tube to shield cable connection
• 3 m integral BNC cable (side exit)
• Rectangular body with multiple mounting interfaces
• IP68 protection and stainless Invar contact surfaces

When to Use GH150 (Magnetic)
Use the GH150 (Magnetic) when AE monitoring or NDT must be performed on very hot metallic surfaces where standard AE sensors cannot operate. Typical cases include:

• Ultra‑high temperature monitoring up to 600 °C
• Boiler and furnace structural monitoring
• Pressure vessel and process equipment testing at elevated temperature
• Monitoring of hot valves, flanges and metallic components
• Temporary AE inspections on high‑temperature structures
• Applications requiring a 260 kHz AE sensor rated to 600 °C

Installation Notes
Correct installation is critical for reliable AE detection at ultra‑high temperatures. Recommended practices:

• Confirm actual surface temperature before installing the sensor
• Clean and prepare the mounting surface for stable acoustic coupling
• Select magnetic mounting, cable tie, custom clamp or free‑mounted rod based on temperature, vibration and surface condition
• Prefer mechanically stable clamps for long‑term high‑temperature monitoring
• Route the cable away from direct heat, sharp edges and moving parts
• Avoid cable tension or sharp bends close to the sensor
• Verify channel response before formal testing or extended monitoring

Applications

• High‑temperature pipeline monitoring
• Pressure vessel and process equipment testing
• Boiler and furnace structural monitoring
• High‑temperature valve and flange monitoring
• Inspection of hot metallic structures
• Plant equipment troubleshooting under elevated temperature
• Temporary field testing on high‑temperature structures

Technical Specifications

• Model: GH150 (Magnetic)
• Resonant Frequency (Ref V/(m/s)): 260 kHz
• Frequency Range: 50 kHz – 600 kHz
• Sensitivity Peak (Ref V/(m/s)): >60 dB
• Working Temperature: -45 °C to 600 °C
• Size (DxWxH): 30 × 40 × 10.5 mm
• Weight: 200 g
• Case Material: Stainless Invar steel / copper
• Face Material: Stainless Invar steel / copper
• Protection Grade: IP68
• Connector: BNC on integral cable (side)
• Cable Length: 3 m
• Heat‑resistant Metal Tube Length: 20 cm
• Signal Cable Model: SYV‑50‑3 / STYV‑50‑2
• Hold‑down Options: Self‑magnetic / cable tie / custom clamp / free‑mounted rod
• Compatible Preamplifier: PAS / PAV