新品：Barksdale BIT 带Hart协议智能变送器
日期：2019/01/09

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加利福尼亚州洛杉矶 - 领先的工业控制制造商Barksdale很高兴地宣布推出其首款采用HART通信协议的数字压力变送器系列：BiT系列。我们的新型BiT是Barksdale智能变送器的缩写，有两个产品系列：450X系列，带防爆额定外壳，专为石油和天然气行业的危险区域应用而设计;和450系列，专为高压测试和测量以及一般工业应用而设计。

BiT系列450和450X是我们新系列高压变送器的一部分，采用先进的电子和传感技术设计，以保持稳定性，减少停机时间，维护和校准成本。它们提供24种标准压力范围，从真空到30,000 psi（2,000 Bar），多个电气和过程连接，以及高精度到0.1％FSO（包括线性，滞后和重复性）。 BiT产品系列均提供三种基本型号：1）采用HART通信协议的4-20 mA输出，2）4-20 mA输出，3）1-5 VDC输出，可选定制电压输出高达10 VDC。

具有HART协议的BiT系列450和450X提供了除正常过程变量之外的其他信息。它们提供诊断，设备状态和其他校准功能，包括远程量程可调性和零点调整。 HART通信协议以数字方式提供所有这些信息，而不会改变现有的4-20 mA接线。数字信号叠加在4-20 mA电流环路上，并由所有主要PLC制造商提供支持，并进行简单的I / O模块升级。

除了HART功能外，BiT 450和450X系列还通过薄膜传感技术提高了精度和稳定性，提供了长期稳定性和高精度。薄膜技术的长期稳定性增加了校准间隔之间的时间，从而降低了维护成本并保持了校准间隔之间的准确性。

“Barksdale已成功设计和供应压力变送器解决方案超过35年，”Barksdale的副总经理，石油和天然气总经理Tarun Shivlani说。 “对于我们的新BiT，我们使用了我们广泛的压力变送器设计专业知识，并将其与全球公认的HART协议标准相结合，生产出比同类竞争对手更小的高性能不锈钢变送器。”

BiT系列450X是防爆型号，提供危险区域防爆保护，符合北美，欧洲和国际标准，具有cULus，ATEX，IECEx和Single Seal认证。防爆外壳采用全焊接不锈钢制造，符合IP66和IP67标准，符合NEMA 4X标准。 450X系列机型的典型应用包括海上控制面板和其他油气处理和生产设备。

BiT 450系列适用于OEM重型移动设备测试的非机密区域。该系列包括流行的工业和MS型连接器，便于连接，并获得cULus批准用于普通地点。

资料下载：

BiT - 媒体资料包
BiT - 450系列数据表
BiT - 450X系列数据表
BiT（450和450X）手册
BiT - 450系列传单
BiT - 450X系列传单

Barksdale Intelligent Transmitters (BiT) with HART? Communication Protocol
Submitted on Tue, 04/02/2019

Barksdale is pleased to announce the release of its first digital pressure transmitter family with HART? communication protocol: Series BiT. Their new BiT, short for Barksdale Intelligent Transmitters, has two product series: Series 450X, with explosion proof rated enclosure, designed for hazardous area applications in Oil & Gas industry; and Series 450, which is designed for high pressure test & measurement and general industrial applications.

Barksdale Intelligent Transmitters (BiT) with HART? Communication Protocol

BiT, Series 450 and 450X, are part of our new line of high-pressure transmitters designed with advanced electronics and sensing technologies to maintain stability, reduce downtime, maintenance and calibration costs. They offer 24-standard pressure ranges from vacuum to 30,000 psi (2,000 Bar), multiple electrical and process connections, and high accuracy to 0.1% FSO (including Linearity, Hysteresis and Repeatability). Both BiT product series offer three basic models: 1) 4-20 mA output with HART? communication protocol, 2) 4-20 mA output, 3) 1-5 VDC output with optional custom voltage output up to 10 VDC.

BiT, Series 450 and 450X, with HART? protocol provides additional information beyond the normal process variable. They offer diagnostic, device status and other calibration capabilities, including remote span adjustability and Zero trim. HART? communication protocol provides all this information, digitally, with no changes to the existing pair of 4-20 mA wiring. The digital signal is superimposed on the 4-20 mA current-loop and is supported by all major PLC manufacturers with a simple I/O module upgrade.

In addition to HART? capabilities, BiT Series 450 & 450X have raised the bar for accuracy and stability with thin-film sensing technology that provides long-term stability and high accuracy. The long-term stability of thin-film technology increases the time between calibration intervals reducing maintenance cost and maintaining accuracy between calibration intervals.

“Barksdale has been successfully designing and supplying pressure transmitter solutions for over 35 years,” said Barksdale’s VP, General Manager-Oil & Gas, Tarun Shivlani. “For our new BiT, we used our extensive pressure transmitter design expertise and combined it with the globally-accepted HART? Protocol standard to produce a high-performance, stainless-steel transmitter that is smaller than competitors in its class.”

BiT, Series 450X are explosion proof models that provide hazardous area explosion protection to meet North American, European and international standards with cULus, ATEX, IECEx and Single Seal certifications. The explosion proof enclosure is an all-welded stainless-steel and is IP66 & IP67 and NEMA 4X rated. Typical applications for Series 450X models include offshore control panels and other Oil and Gas process and production equipment.

The BiT 450 series is for unclassified area use for OEM heavy mobile equipment testing. The series includes popular industrial and MS Style connectors for easy connection and is cULus approved for ordinary locations.