High Accuracy pressure transmitter for Process Control
Precision Pressure Transmitter solutions for demanding industrial applications. The DR3419 series delivers reliable performance.
Precision Pressure Transmitter Solves VFD-Induced Reading Errors
During a night shift, an operator reported a 20% pressure drop in a distillation column whenever the VFD reached 50Hz. The process remained stable, pointing to a signal issue rather than a real pressure change. Physics explains that pressure sensors are temperature-sensitive; without proper compensation, electrical noise from VFDs can corrupt analog-to-digital conversion.
We isolated the problem by comparing readings with a redundant gauge and performing temperature scans. The sensor had minor lubricant contamination, but the root cause was VFD-induced noise affecting the older transmitter. We replaced it with the DR3419, a precision pressure transmitter with 0.05% accuracy and built-in temperature compensation. The installation was simple, and the results were immediate: the 20% drop disappeared, and readings stayed within ±5 bar across all VFD speeds.
Why the DR3419 Precision Pressure Transmitter Works
- High accuracy 0.05% FS – Ensures reliable measurements even in noisy environments.
- Excellent long-term stability – Maintains calibration over time.
- Temperature compensated – Corrects for thermal drift, a common issue in industrial settings.
- Low total error band – Combines accuracy, stability, and temperature effects into one spec.
- Variety of electrical and pressure connections – Fits existing installations.
This temperature compensated pressure sensor eliminated the noise-induced error, proving that proper signal conditioning is critical in VFD-heavy plants. Have you encountered similar VFD interference issues in your pressure measurements? If so, consider reviewing your transmitter’s total error band and temperature specs. Download the DR3419 datasheet for detailed performance data.
🔧 Need a Reliable Precision Pressure Transmitter?
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