3500/25-149369-01  增强型键相器模块 用于提供精确的时间测量

3500/25-149369-01增强型键相器模块，如本特利（Bently）3500/25 149369-01，是一种半高、双通道模块，设计用于向3500机架中的监视器模块提供Keyphasor信号。

这种模块接收来自近接探头或磁性拾音器的输入信号，并将这些信号转换为数字Keyphasor信号。这些信号用于指示轴上的Keyphasor标记何时与Keyphasor传感器相一致。

3500/25-149369-01增强型键相器模块是3500系统模块的一种改进版本，它提供了比早期设计更强大的键相信号处理能力，同时在与现有Keyphasor模块配合使用时，保持了完全的向下兼容性。这种模块可以接收两个来自涡流传感器或电磁传感器的信号，其输入信号范围在-0.8V到-21.0V（非绝缘I/O模块）和+5V到-11V（绝缘I/O模块）之间。

此外，3500/25-149369-01该模块还提供了两个缓冲的键相位输出信号，这些信号可以在框架前面板上的同轴接头处获得，也可以在框架背面的欧式接头处获得。在键相器模块内部检测到故障时，前面板上的发光二极管OK指示灯会发出指示。当键相器模块与框架接口模块（RIM）进行通信时，TX/RX指示灯会发出指示。

在3500机械保护系统中，3500/25-149369-01正常配置下最多可接受四个Keyphasor信号，而在配对配置下最多可接受八个Keyphasor信号。这些键相位信号是来自旋转轴或齿轮的每转一次或每转多次的脉冲信号，用于提供精确的时间测量。这使得3500监视器模块和外部故障诊断设备能够测量诸如1X幅值和相位等向量参数。

3500/25-149369-01  增强型键相器模块 用于提供精确的时间测量

The 3500/25-149369-01 Enhanced Keyphaser module, such as the Bently 3500/25 149369-01, is a half-height, dual-channel module designed to provide Keyphasor signals to monitor modules in the 3500 rack.

This module receives input signals from proximity probes or magnetic pickups and converts these signals into digital Keyphasor signals. These signals are used to indicate when the Keyphasor mark on the axis is aligned with the Keyphasor sensor.

The 3500/25-149369-01 Enhanced Key Phaser module is an improved version of the 3500 system module that provides more powerful key signal processing than earlier designs, while maintaining full backward compatibility when used with existing Keyphasor modules. This module can receive two signals from eddy current sensors or electromagnetic sensors with input signals ranging from -0.8V to -21.0V (uninsulated I/O modules) and +5V to -11V (insulated I/O modules).

In addition, the 3500/25-149369-01 module also provides two buffered key phase output signals, which can be obtained at the coaxial junction on the front panel of the frame, or at the European junction on the back of the frame. When a fault is detected inside the key phaser module, the light-emitting diode OK indicator on the front panel gives an indication. The TX/RX indicator gives an indication when the key phaser module communicates with the Frame Interface Module (RIM).

In the 3500 mechanical protection system, the 3500-25-149369-01 accepts up to four Keyphasor signals in a normal configuration and up to eight Keyphasor signals in a paired configuration. These key phase signals are pulses per turn or multiple times per turn from the rotating shaft or gear and are used to provide accurate time measurements. This enables the 3500 monitor module and external fault diagnosis equipment to measure vector parameters such as 1X amplitude and phase.