BENTLY 3500/42 128240-01 本特利位移速度监测器是一款高性能的监测设备，以下是对其的详细介绍：

一、产品概述

BENTLY 3500/42 128240-01 本特利位移速度监测器既可以采用紧凑的导轨安装，也可以采用传统的面板安装。其安装孔位置与以前四孔安装的3300前置器相同，且不需要独立的绝缘板。在纤维防护罩中，该监测器也不会受到附近无线电信号的干扰。

二、功能特点

1. 多功能测量：该监测器既能进行静态（位移）测量，又能进行动态（振动）测量，主要用于油膜轴承机械的振动和位移测量，以及键相位和转速测量。
2. 高兼容性：该模块可接收来自多种替换型号传感器的输入，包括3300XL 8毫米、3300 RAM、3300 5毫米和8毫米、3300 16毫米、HTPS 7200 5、8、11和14毫米等。
3. 可编程报警：可使用3500机架配置软件配置警告设定值，为每一有效的比例值配置报警设定值，且可为其中两个比例值配置危险设定值。
4. 4通道监测：具有4个通道，可以接收来自位移、速度、加速度传感器的信号，并对这些信号进行处理，然后与用户编程的报警值进行比较。

三、技术规格

1. 输入信号：接受1到4个位移、速度或加速度传感器信号。
2. 标准I/O：10千欧（位移和加速度输入）。
3. 三重冗余（TMR）I/O：三个总线型TMR I/O通道并联到一个传感器上的有效阻抗为50千欧。
4. 功率：正常消耗为7.7瓦。
5. 灵敏度：根据不同的测量参数（如径向振动、轴位移、偏心、差胀等），灵敏度有所不同，具体数值可参见产品手册。

四、应用场景

BENTLY 3500/42 128240-01 本特利位移速度监测器广泛应用于各种需要监测机械振动和位移的场合，如风力发电机组、水力发电机组、石油化工设备、重型机械设备等。通过连续不断地将机器振动当前值与组态中的报警设定值进行比较，并驱动报警系统，从而达到保护机器的目的。同时，它还能为操作人员和维护人员提供关键的机器振动信息，有助于及时发现并处理潜在的故障。

五、安装与调试

1. 安装前检查：确保探头的丝口光滑平整，探头表面无油污或其它异物。旋转固定螺帽应进退自如，无卡涩现象。
2. 安装间距调整：使用卡尺量准汽轮机转子与上缸开口丝孔的间距，然后旋转探头上的固定螺帽，将螺帽与探头前端的距离调整至稍大于量准的间距位置。探头旋进时用力不要过猛，以免损坏探头。
3. 电源检查：在现场本特利前置放大器的VT端和COM端接上万用表，检查24V电源是否正常。
4. 电缆连接：确保探头电缆的连接接头与前置放大器的延伸电缆的连接接头连接良好。并使用接头保护器或热缩管、绝缘胶带将延伸电缆的连接接头包好，严禁将接头裸露或与任何金属接触。
5. 调整探头间距：使用万用表接好本特利前置放大器的OUT端和COM端，然后旋转探头上的固定螺帽，调整探头与转子的间距至标准电压值9.75V。
6. 检查微机显示：最后检查微机显示的相应轴振示值是否正常。在停机盘车状态下，轴振示值应在10um以下为正常。

BENTLY 3500/42 128240-01 Bentley displacement velocity monitor is a high-performance monitoring device. The following is a detailed introduction to it:

1、 Product Overview

BENTLY 3500/42 128240-01 Bentley displacement velocity monitor can be installed with compact guide rails or traditional panel mounting. The installation hole position is the same as the previous four hole installation of the 3300 preamplifier, and no independent insulation board is required. In the fiber protective cover, the monitor will not be affected by nearby radio signals.

2、 Functional Features

Multi functional measurement: This monitor can perform both static (displacement) and dynamic (vibration) measurements, mainly used for vibration and displacement measurement of oil film bearing machinery, as well as key phase and speed measurement.

High compatibility: This module can receive inputs from various replacement models of sensors, including 3300XL 8mm, 3300 RAM, 3300 5mm and 8mm, 3300 16mm, HTPS 7200 5mm, 8mm, 11mm, and 14mm.

Programmable alarm: The 3500 rack configuration software can be used to configure warning settings, set alarm settings for each valid proportional value, and set danger settings for two of the proportional values.

4-channel monitoring: With 4 channels, it can receive signals from displacement, velocity, and acceleration sensors, process these signals, and then compare them with user programmed alarm values.

3、 Technical specifications

Input signal: Accept 1 to 4 displacement, velocity, or acceleration sensor signals.

Standard I/O: 10 kiloohms (displacement and acceleration input).

Triple Redundancy (TMR) I/O: The effective impedance of three bus type TMR I/O channels connected in parallel to a sensor is 50 kiloohms.

Power: Normal consumption is 7.7 watts.

Sensitivity: Sensitivity varies depending on different measurement parameters such as radial vibration, shaft displacement, eccentricity, differential expansion, etc. Specific values can be found in the product manual.

4、 Application scenarios

BENTLY 3500/42 128240-01 Bentley displacement velocity monitor is widely used in various occasions where mechanical vibration and displacement need to be monitored, such as wind turbines, hydroelectric generators, petrochemical equipment, heavy machinery equipment, etc. By continuously comparing the current vibration value of the machine with the alarm set value in the configuration and driving the alarm system, the purpose of protecting the machine is achieved. At the same time, it can also provide critical machine vibration information for operators and maintenance personnel, helping to detect and handle potential faults in a timely manner.

5、 Installation and Debugging

Pre installation inspection: Ensure that the wire mouth of the probe is smooth and flat, and that the surface of the probe is free of oil stains or other foreign objects. The rotating fixed nut should move back and forth freely without any jamming phenomenon.

Installation spacing adjustment: Use a caliper to measure the distance between the turbine rotor and the upper cylinder opening screw hole, and then rotate the fixed nut on the probe to adjust the distance between the nut and the front end of the probe to a position slightly larger than the measured distance. When rotating the probe, do not apply too much force to avoid damaging the probe.

Power inspection: Connect a multimeter to the VT and COM terminals of the Bentley preamplifier on site to check if the 24V power supply is working properly.

Cable connection: Ensure that the connection joint of the probe cable is well connected to the connection joint of the extension cable of the preamplifier. And use joint protectors, heat shrink tubing, and insulating tape to wrap the connection joints of the extension cable. It is strictly prohibited to expose the joints or come into contact with any metal.

Adjust probe spacing: Use a multimeter to connect the OUT and COM terminals of the Bentley preamplifier, then rotate the fixed nut on the probe to adjust the distance between the probe and the rotor to the standard voltage value of 9.75V.

Check the microcomputer display: Finally, check whether the corresponding shaft vibration reading displayed on the microcomputer is normal. In the shutdown and turning state, the shaft vibration reading should be below 10um to be considered normal.