Barksdale is a manufacturer of pressure sensors, mechanical pressure products, valves and regulators, temperature products, level products, and air suspension valves.
This document is a product leaflet for the Barksdale BiT intelligent transmitter series, specifically models H455, 455, and 452. It highlights the transmitters' lightweight, compact, all-welded rugged stainless steel construction and high-performance sensors designed for high accuracy in demanding applications.
The leaflet details general specifications including accuracy, temperature ranges, and proof pressure capabilities. It also covers compliance certifications such as cULus, CE, and NACE, along with electromagnetic compatibility (EMC) standards. Detailed wiring diagrams and connection tables for various electrical configurations are provided.
| Accuracy (Standard) | ±0.25% of Calibrated FSO |
|---|---|
| Accuracy (Optional) | ±0.1% of Calibrated FSO |
| Output | 4–20 mA with HART® Protocol |
| Excitation Voltage (H455/455) | 9 to 30 VDC |
| Enclosure Material | All welded 300 series stainless steel |
| Protection Rating | IP66 & IP67 and NEMA 4X |
| Proof Pressure (up to 7500 psi) | 2X range |
The turndown ratio is 10:1, allowing for re-ranging while maintaining high accuracy.
Yes, it is cULus approved for ordinary locations according to UL 61010-1.
Standard sensors use 17-4 PH Stainless Steel, with optional 718 Inconel available.