Introducing Glass‑Bonded Gage Transmitter: GBMCT‑6A Series – Built for the Harshest Conditions
- John Valentini
- Jun 23
- 2 min read
When your application runs in corrosive gases, high‑pressure compressors, or extreme temperature cycles, not every pressure sensor can deliver reliable performance. That’s where the GBMCT‑6A Series glass‑bonded gage transmitter from AV Sensors steps up—with unmatched ruggedness and precision.
What Makes GBMCT‑6A Stand Out?
Glass‑bonded silicon gage on a 17‑4 stainless steel diaphragm: creates a hermetic seal ideal for corrosive media and maintains structural integrity during pressure excursions.
All‑metal, single‑piece body construction: eliminates weld seams and leak paths, providing mechanical durability in demanding industrial environments.
Wide pressure ranges (up to 5,000 psi) and broad temperature tolerance (–40 °C to +125 °C): meets the needs of agriculture, pumps, refrigeration, and compressor OEMs.
Precision You Can Count On
Engineered around a mixed‑signal ASIC, the GBMCT‑6D brings sensor-level accuracy right to your control system:
±0.25% full scale accuracy (1% TEB across thermal range)
Typical thermal error < ±0.6% FS over –20 °C to +85 °C, with sustained performance to 125 °C.
Fast update rates (<1 ms) for responsive feedback in high-speed control loops.
Flexible Outputs & Filtration
Choose from:
Analog: 4–20 mA, 0.5–4.5 V, 0–5 V, 0–10 V
Regulated or ratiometric voltage
Optional pressure snubber: protects against spikes in pneumatic or hydraulic systems
Standard electronics include reverse‑polarity and over‑voltage protection, making installations more forgiving.
Why Glass Bonding Matters
Glass bonding ensures a true hermetic seal—no epoxy to degrade. The method offers:
Enhanced resistance to moisture and humidity
Improved stability in corrosive or ionic environments
Greater mechanical ruggedness versus organic seals
Ideal Use Cases
The GBMCT‑6a really shines in:
Refrigeration & HVAC: reliable across CO₂, ammonia, and aggressive refrigerant cycles
Compressed air systems: resists moisture, oil mist, and rapid cycling
Hydraulic equipment: surfacing contamination-resistant diaphragms and media filtration
Tech Specs At-a-Glance
Feature | Specification |
Accuracy | ±0.25% FS (1 year) / 1% TEB (–40 °C to +125 °C) |
Temp Compensation | –20 °C to +85 °C (±0.6% FS typical) |
Response Time | < 1 ms |
Media Compatibility | Compatible with corrosive gases & hydraulic fluids |
Over-pressure Protection | Up to 3× full scale |
Electrical Protections | Reverse polarity, over-voltage |
Output Options | Analog, Regulated, Ratiometric |
Integrate with Confidence
AV Sensors supports OEMs with:
Mixed-signal ASIC electronics: pre-tuned temperature compensation and diagnostic functions
Extensive process fittings: NPT, BSP, manifold-ready ports
Rugged connectors: M12, cable leads, DIN styles available
Plus, their US‑based support and willingness for custom revisions ensure the sensor fits your system, not the other way around.
Final Thoughts
If you're designing systems exposed to harsh gases, high cycle loads, or wide thermal swings, glass‑bonded gage sensors like GBMCT‑6A offer unmatched reliability and accuracy. Their hermetic, single-piece metal builds paired with smart ASIC compensation make them ideal for mission-critical industrial applications.
Curious about drawing it into your design, layout, or calibration workflow? Reach out to AV Sensors—they typically respond within 24 hours and can help fast-track evaluations.
Landing Page
John Valentini, Business Development AV Sensors (business.development@avsensors.com)
Comentários