A6500-UM 通用型监测模块 用于轴相对振动测量

轴相对振动模式用于提供给工厂中最关键旋转设备以提高可靠性。该功能与其它CSI A6500 ATG监测模块配合使用时，可形成一个完整的API 670机械保护监测系统。其应用包括汽轮机、燃气轮机、压缩机和水轮机。
轴相对振动测量的主要功能是通过被测量参数与报警设定值进行比较，驱动报警和继电器输出，从而准确监测轴相对振动并以可靠的方式保护设备。轴相对振动包括一个穿过轴承壳体安装或安装在轴承内部以旋转轴或监测目标安装在轴承外壳上以旋转轴作为监测目标的位移传感器。位移传感器是一种非接触式传感器，用于测量轴的位置和运动。由于该位移传感器安装在轴承上，监测的参数被称为轴相对振动，也就是轴相对于轴承壳体的振动。轴相对振动是所有滑动轴承机器上用于预测和保护监测的重要测量指标。当机壳重量远大于转子，且预计轴承壳体不会在0~正常运转转速之间振动时，应选择轴相对振动。当轴承壳体和转子质量接近于相等时，若轴承壳体更可能振动且影响轴相对振动读数，则有时会选择轴绝对振动测量。

 双通道、3U尺寸的单槽插入式模块比传统四通道、6U尺寸的卡件节省了一半的机间。
 符合API 670且支持热插拔的模块。
 支持远程控制限值倍增和跳机旁路。
 前后缓冲和比例输出，0/4 – 20mA 输出。
 自检设施包括监测硬件、电源输入、硬件温度、传感器和电缆。
 与位移传感器PR6422、PR6423、PR6424、PR6425和前置器CON 011/91、021/91、041/91配合使用。

A6500-UM

The shaft relative vibration mode is used to improve reliability for the most critical rotating equipment in the plant. This function, when combined with other CSI A6500 ATG monitoring modules, forms a complete API 670 mechanical protection monitoring system. Applications include steam turbines, gas turbines, compressors and water turbines.
The main function of shaft relative vibration measurement is to drive the alarm and relay output by comparing the measured parameter with the alarm set value, thus accurately monitoring shaft relative vibration and protecting the equipment in a reliable manner. Shaft relative vibration comprises a displacement sensor mounted through the bearing housing or mounted inside the bearing with a rotating shaft or a monitoring target mounted on the bearing housing with a rotating shaft as a monitoring target. A displacement sensor is a non-contact sensor that measures the position and movement of a shaft. Since the displacement sensor is installed on the bearing, the parameter monitored is called shaft relative vibration, that is, the vibration of the shaft relative to the bearing housing. Shaft relative vibration is an important measurement for prediction and protection monitoring on all plain bearing machines. When the weight of the housing is much greater than that of the rotor, and the bearing housing is not expected to vibrate between 0 and normal operating speed, the relative vibration of the shaft should be selected. When the bearing housing and rotor masses are close to equal, the absolute shaft vibration measurement is sometimes chosen if the bearing housing is more likely to vibrate and affect the relative shaft vibration reading.

 The two-channel, 3U size single-slot plug-in module saves half the room time compared to the conventional four-channel, 6U size card.
 API 670 compliant and hot-swappable modules.
 Supports remote control limit doubling and bypass.
 Front and rear buffered and proportional output, 0/4-20 mA output.
 Self-test facilities include monitoring hardware, power inputs, hardware temperature, sensors, and cables.
 is used with the displacement sensors PR6422, PR6423, PR6424, PR6425 and the precursors CON 011/91, 021/91, 041/91.