Barksdale Series 450X Intelligent Transmitter

Barksdale Intelligent Transmitters (BiT), Series 450X is a high pressure, explosion-proof compact transmitter with HART® communication protocol option. HART® enabled sensors can communicate over the legacy two-wire 4-20 mA analog current loops offering smart features like transmitter diagnostics, calibration, and field re-ranging up to 10 times less than calibrated full scale output (10:1 turndown ratio). Three models are available: Series H455X, 4-20 mA output with HART® Comm. Protocol; Series 455X, 4-20 mA output; Series 452X, 1-5 VDC output. These models can be configured with 24-standard pressure ranges from vacuum to 30,000 psi and multiple process connections from 1/4” NPT to 7/16” SAE and HF4 Autoclave high-pressure connections. Series 450X offers hazardous area explosion protection to meet North American, European and international standards with ATEX, IECEx, cULus approvals. 

General Specifications*Accuracy (LH & R):
at 75°F, Typical±0.1% of Calibrated FSO (Option [–A1])
±0.25% of Calibrated FSO (Standard)
±0.5% of Calibrated FSO (Vacuum only
[-23])Temperature Shift:Zero & Span: 0.0125% Per °F over the
compensated temperature rangeLong Term
Stability:
±0.2% FSO/year of calibration curveTypical Life Cycle:100 million cyclesProof Pressure:2X range for up to 7500 psi models
1.5X range for 7500 - 30000 psi modelsInput:
H455X:
455X*:
452X*:
Excitation voltage: 9 to 30 VDC
Excitation voltage: 9 to 30 VDC
Excitation voltage: 12 to 30 VDC
* (SELV, PELV), Class II Power SupplySupply Current:

H455X & 455X:

452X:

20 mA max.

20 mA max.Output:
H455X:



455X:



452X:

Output: 4–20 mA with HART® Protocol
Full Scale Span: 20 mA ±1%
Zero output: 4 mA ±1%

Output: 4–20 mA
Full Scale Span: 20 mA ±1%
Zero output: 4 mA ± 1%

Output: 1–5 VDC
Full Scale Span: 5.0 VDC ± 1%
Zero output: 1.0 VDC ± 1%Dynamic
Response Time:
H455X:
455X & 452X: