Technical specifications and features for the Barksdale H455, 455, and 452 Intelligent Transmitter Series, including accuracy, construction, and output options.
The Barksdale Intelligent Transmitter Series H455, 455, and 452 offers a lightweight, compact, and all-welded rugged stainless steel construction. These transmitters feature thin-film and diffused silicon sensors for high accuracy and support the optional HART communication protocol for diagnostics and field calibration. The series is designed for use in corrosive and acidic media, as well as gas, vapor, liquid, and viscous fluids, with various pressure connection options available.
| Accuracy (Standard) | ±0.25% of Calibrated FSO |
|---|---|
| Excitation Voltage | 9 to 30 VDC |
| Supply Current | 20mA max. |
| Output (H455, 455) | 4–20 mA with HART® Protocol |
| Output (452) | 1–5 VDC |
| Enclosure | All welded 300 series stainless steel |
| Protection Rating | IP66 & IP67 and NEMA 4X |
| Warranty | 1 year |
The transmitters offer a 10:1 turndown ratio for re-ranging when equipped with the HART communication protocol.
The transmitters support the optional HART® communication protocol, which includes diagnostics and field calibration capabilities.
The standard wetted material for the sensor is 17-4 PH Stainless steel, while the fitting is also 17-4 PH Stainless steel for 15k–30k psi ranges.