Introduction
Industrial measurement has evolved from simple dial gauges to sophisticated sensors that thrive where humans cannot. The 143-103-000-931 piezoelectric pressure transducer from Vibro Meter represents that evolution. It is built for gas turbines and nuclear reactor primary circuits, delivering reliable dynamic pressure data in extreme conditions. This transducer uses a VC2 type single crystal in compression mode, minimizing acceleration sensitivity for stable long-term monitoring.
Technical Specifications
The 143-103-000-931 offers a dynamic measuring range of 0.00004 to 20 bar nominal, with overload capacity up to 250 bar for spikes. Its frequency response spans 2 to 10000 Hz ±5%, and sensitivity is 232 pC/bar at 2 Hz. The transducer operates continuously from −54 to +650°C and handles extreme excursions from −196 to +700°C. Constructed from INCONEL® alloy 600 and hermetically welded, it resists corrosion and humidity. It requires no input power, transmitting a charge output through a 2-pole system insulated from the casing. The integral mineral insulated cable comes terminated with a LEMO or high-temperature connector.
Applications in Demanding Environments
The 143-103-000-931 excels in gas turbine monitoring, where high temperatures and pressures demand robust instrumentation. In nuclear plants, it operates in the primary circuit of PWR, APWR, BWR, ABWR, FBR, and HTGR reactors. Its radiation resistance—gamma flux 1011 erg/g and neutron flux 1018 n/cm2 with no effect—ensures reliable performance. For development testing, the low acceleration sensitivity of ≤0.05 pC/g prevents vibration interference, making it ideal for long-term monitoring.
Installation and Maintenance
Mounting uses a flange of Ø27.5/21 mm x 3 mm. The transducer is factory-calibrated at 1 bar peak and 2 Hz; no subsequent calibration is necessary. For maintenance, inspect periodically for cable wear and connector integrity. Follow the manufacturer’s safety manual for any service. The hermetically welded INCONEL® 600 body withstands harsh conditions, reducing downtime.
Why Choose This Transducer
With proven reliability and compliance to NRC guide 1.20 and IEEE 323-1974, the 143-103-000-931 is a smart investment for critical systems. Oil AutoTech provides fast dispatch, worldwide, for spares when you need them. Our hands-on technical selection help ensures you get the right part. Contact Oil AutoTech today for pricing and availability.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
