美国 babbitt LTM 高分辨率磁致伸缩液位变送器

 

高分辨率磁致伸缩液位变送器

巴比特LTM系列磁致伸缩液位变送器是准确的，单机，回路供电的装置，通常安装在一个槽或其他容器的顶部。 在巴比特的磁性液位计安装在外部时，它也可以作为一个液位变送器。

单位是适合流动性的应用，需要很高的精度和可重复性。 可以责令该单位在几个配置，这将使输出简单的层次，水平和温度，在一个界面应用程序或两级。

小学的4-20mA输出用于水平和可选的HART协议通信。 中的4-20mA输出，可用于水平或可选温度。

单位可能出现在板凳上，或在坦克，它将被用于校准。浮法只需找到您想要的“零”，按下一个按钮，然后将浮“跨度”的位置，按下另一个按钮。就是如此快速和简单的！

存储器是非易失性的，所以即使在单位保持校准​​功率损耗。

该传感器由一个5/8“不锈钢管与拉伸热处理线通过它的中心管周围放置磁性浮子和跟踪液位。

一个低功率的微处理器控制的的cicuit产生一个高电流脉冲，这是发送下热处理后的导线。在浮子的磁场干扰创建的扭转波的“反弹”的电子的高电流脉冲。 波的渡越时间转换为4-20mA的信号，正比于液位。

认证调频CSA：

• I级，。 1，B组，C＆D
• II级。 1＆2，E组，F＆G
• III类

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美国 babbitt LTM 高分辨率磁致伸缩液位变送器High-Resolution Magnetostrictive Level Transmitters

The Babbitt LTM series Magnetostrictive Level Transmitter is an accurate, stand-alone, loop-powered device, usually mounted in the top of a tank or other container. It may also be used as a level transmitter when mounted externally on a Babbitt Magnetic Level Gauge.

The unit is suitable for liquid applications that require high accuracy and repeatability. The unit may be ordered in several configurations that will give outputs of simple level, level and temperature, or two levels as in an interface application.

The Primary 4-20ma output is used for Level and optional HART protocol communications. The Secondary 4-20mA output may be used for Level or optional Temperature.

The unit may be calibrated on the bench or in the tank where it will be used. Simply locate the float where you want the "Zero", press a button, then move the float to the "Span" position and press another button. It's that fast and simple!

The memory is non-volatile, so the unit stays calibrated even during loss of power.

The sensor consists of a 5/8" stainless steel tube with a heat-treated wire stretched through the center of it. A magnetic float is placed around the tube and tracks the fluid level.

A low power microprocessor-controlled cicuit produces a high current pulse which is transmitted down the heat-treated wire. The magnetic field in the float interferes with the high current pulse creating a torsional wave which is "bounced" back to the electronics. The transit time of the wave is converted to a 4-20mA signal, proportional to the fluid level.

Approvals FM CSA:

• Class I, Div. 1, Groups B, C & D
• Class II, Div. 1 & 2, Groups E, F & G
• Class III

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