3500/25 是由 Bently Nevada 开发的增强型键相模块。 它是一个半高、双通道模块，用于将键相信号传送到 3500 机架中的监视器模块。当轴上的键相器标记与键相器传感器对齐时，模块使用磁性传感器或接近探头检测对齐情况，并将输入信号转换为数字键相器信号。对于常规设置，3500 机械保护系统最多可以接受四个键相信号，对于配对配置，它最多可以接受八个。旋转轴或齿轮的每转一次或每转多次事件脉冲（称为键相信号）可用于精确检测定时。因此，3500 监控模块和外部诊断工具可以测量轴转速和矢量特性，如 1X 振动幅度和相位。增强型 3500 系统模块称为增强型键相模块。在保持与用于遗留系统的现有 Keyphasor 模块的形状、配合和功能方面的完全向下兼容性的同时，它提供了比先前设计更高的 Keyphasor 信号处理能力。修订后的 149369-01 模块完全取代了 Keyphasor 模块，PWA 125792-01。每当三重模块化冗余 (TMR) 应用需要系统键相输入时，3500 系统应使用两个键相模块。在此设置中，模块并行运行，为机架中的其他模块提供主要和次要键相信号。如果主键相输入信号不超过四个，则具有四个以上键相输入的系统可以使用成对排列。
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模块适用于许多设备同时连接到 Keyphasor 信号以及需要与其他系统（例如控制系统）隔离的情况。尽管主要为磁性拾取器应用而设计，但只要提供外部电源，隔离式 I/O 模块就兼容 Proximitor* 应用并为其提供隔离。该 I/O 模块的主要目标是测量轴速而不是相位。该模块可以提供相位测量，尽管与非隔离 I/O 版本相比，该 I/O 引入了更大的相移。从每轮多事件输入创建每轮一次事件信号、现场可升级固件和资产管理数据报告是增强产品功能的示例。磁性拾音器或接近探头换能器最多可以向每个键相模块发送两个换能器信号。非隔离 I/O 模块的输入信号范围为 +0.8 V 至 21.0 V，隔离 I/O 模块为 +5 V 至 -11 V。超出此范围的信号会受到模块的内部限制。被动磁性拾音器 (3.3 Hz) 需要超过 200 rpm 的轴转速。磁性拾音器或接近探头换能器最多可以向每个键相模块发送两个换能器信号。非隔离 I/O 模块的输入信号范围为 +0.8 V 至 21.0 V，隔离 I/O 模块为 +5 V 至 -11 V。超出此范围的信号会受到模块的内部限制。被动磁性拾音器 (3.3 Hz) 需要超过 200 rpm 的轴转速。
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The 3500/25 is an enhanced Keyphasor Module developed by Bently Nevada. It is a half height, dual channel module used to transmit key signal to the monitor module in the 3500 rack. When the keyphasor markings on the shaft align with the keyphasor sensor, the module uses a magnetic sensor or proximity probe to detect alignment and convert the input signal into a digital keyphasor signal. For regular settings, the 3500 mechanical protection system can accept up to four key signals, and for paired configurations, it can accept up to eight. The event pulses per revolution or multiple times per revolution of a rotating shaft or gear (referred to as keying signals) can be used to accurately detect timing. Therefore, the 3500 monitoring module and external diagnostic tools can measure shaft speed and vector characteristics, such as 1X vibration amplitude and phase. The Enhanced 3500 System Module is referred to as the Enhanced Keyphasor Module. While maintaining full downward compatibility with the shape, fit, and functionality of existing Keyphasor modules used in legacy systems, it provides higher Keyphasor signal processing capabilities than previous designs. The revised 149369-01 module completely replaces the Keyphasor module, PWA 125792-01. Whenever a Triple Modular Redundancy (TMR) application requires system keyphasor input, the 3500 system should use two keyphasor modules. In this setting, the modules run in parallel, providing primary and secondary key signals for other modules in the rack. If there are no more than four input signals for the main keyphasor, systems with more than four keyphasor inputs can be arranged in pairs
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The module is suitable for situations where many devices are simultaneously connected to the Keyphasor signal and need to be isolated from other systems (such as control systems). Although primarily designed for magnetic pickup applications, isolated I/O modules are compatible with Proximitor * applications and provide isolation as long as external power is provided. The main objective of this I/O module is to measure shaft speed rather than phase. This module can provide phase measurement, although it introduces a larger phase shift compared to the non isolated I/O version. Creating one event signal per round, on-site upgradable firmware, and asset management data reports from multiple event inputs per round are examples of enhancing product functionality. Magnetic pickups or proximity probe transducers can send up to two transducer signals to each keyphase module. The input signal range of non isolated I/O modules is+0.8 V to 21.0 V, and that of isolated I/O modules is+5 V to -11 V. Signals outside this range will be subject to internal limitations of the module. Passive magnetic pickup (3.3 Hz) requires a shaft speed exceeding 200 rpm. Magnetic pickups or proximity probe transducers can send up to two transducer signals to each keyphase module. The input signal range of non isolated I/O modules is+0.8 V to 21.0 V, and that of isolated I/O modules is+5 V to -11 V. Signals outside this range will be subject to internal limitations of the module. Passive magnetic pickup (3.3 Hz) requires a shaft speed exceeding 200 rpm.
350025
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