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350015 133292-01BENTLY 低壓直流模塊

Bently 3300 Overview of the system

Working principle

Instrument measurement adopts the principle of approaching eddy current. The probe is composed of a coil with a high frequency signal. When the metal surface of the measured shaft changes relative position with the probe, the size of the eddy current formed changes, so that the energy loss of the high frequency signal in the probe changes. The change signal is converted into a voltage signal corresponding to the voltage of the gap measured by the probe through the preprocessor, and the signal enters the monitor in the component box. Display as a reading after conversion inside the monitor. Structure of the Bentley 3300 system loop

The system consists of a 3300 series instrument assembly box with a corresponding preamplifier and a sensor (probe) with cable. Each parameter is measured by the probe preprocessor and the monitor together.

The main calibration instruments include Bentley TK3-2E calibrator, 4-digit semi-digital voltmeter, 24V DC regulated power supply and function generator.

Calibration of sensor

Connect the probe with the extension cable, and the other end of the extension cable is connected to the preprocessor. The power end of the preprocessor (-24VDC) and the common end (com) are connected to the -24VDC power supply, and the common end and the output end are connected to the digital voltmeter.

The probe is fixed on the probe seat with a suitable probe clamp so that the tip of the probe is in contact with the calibration target.

Send -24VDC to the power and common ends of the preprocessor, then adjust the screw micrometer on the TK3-2E calibrator so that the indicator is at 0mm, then increase the indicator value of the micrometer to 0.25mm and record the voltage value of the digital voltmeter (which is the output voltage of the preprocessor). Increase the gap at 0.25mm each time until the indicated value is 2.5mm, and record the output voltage value each time (check point no less than 10 points). According to the recorded data, according to the form of the calibration curve of the axial displacement sensor, the gap voltage curve of the calibrated probe sensor system is drawn, which reflects the characteristics of the sensor. According to the drawn gap - voltage curve, determine the linear range of the sensor system, should not be less than 2mm. The sensitivity of the sensor system is calculated to be 7.874V/mm, and the nonlinear deviation in the linear range is no more than 20um. Voltage increment divided by gap increment is sensitivity. The linear center of the sensor is the static setting of the axial displacement sensor. The calibration method of the vibration sensor is the same as that of the data recording coaxial displacement sensor. The gap voltage curve should also be drawn to calculate the sensitivity of the sensor system. The error of the sensor system is not more than ±5% within the linear range of 2mm. The linear center of the sensor is the installation reference point of the shaft vibration sensor.

主要功能：BentlyNevada機械狀態(tài)監(jiān)測

詳細參數(shù)描述

　3500/32M4通道繼電器模塊提供四個繼電器輸出和高度可配置的繼電器邏輯接口。

四個輸出中的每一個都可以獨立編程，以通過為每個繼電器配置警報驅(qū)動邏輯來啟用投票。

3500機械保護系統(tǒng)內(nèi)的所有通道都可用于使用NotOK狀態(tài)以及3500/32M內(nèi)的警報和危險設(shè)置點來驅(qū)動復(fù)雜邏輯。

3500/32M為高度可配置的AND/OR邏輯組合提供易于使用的界面，包括“正常”和“真”和表決選項以及閉鎖繼電器通道選項。

　　4通道繼電器模塊是一個全高模塊提供四個繼電器輸出。任何數(shù)量的4通道繼電器

　 模塊可以放置在瞬態(tài)數(shù)據(jù)接口模塊。

4的每個輸出-通道繼電器模塊可獨立編程為執(zhí)行投票邏輯。

　　4通道繼電器模塊上使用的每個繼電器包括

　　報警驅(qū)動邏輯。

　　報警驅(qū)動邏輯的編程使用AND和OR邏輯，

　　并且可以使用報警輸入（警報和危險狀態(tài)），

　　不正常，或來自任何監(jiān)視器通道或任何

　　機架中監(jiān)視器通道的組合。你可以

　　編程此報警驅(qū)動器以滿足您的應(yīng)用需求

　　使用3500機架配置軟件。

BENTLY本特利3500/32M繼電器模塊4通道應(yīng)用廣泛，例如工廠是否發(fā)電、壓縮和泵送工業(yè)所依賴的流體或驅(qū)動工藝設(shè)備關(guān)鍵機械每天每小時一次。

　　在這些設(shè)置，機械故障不僅不方便，還可能災(zāi)難性的盡管僅維修成本就可能令人震驚，

　　由于以下原因造成的部分甚至全部生產(chǎn)損失，關(guān)鍵機械故障–有時價值數(shù)百萬日–可以表示損益之間的差異整個一年。

　　有這么多危險，機械狀態(tài)監(jiān)測不僅僅是一個好主意，它是一個必然性持續(xù)監(jiān)控關(guān)鍵資產(chǎn)參數(shù)，如振動、溫度、速度和許多其他條件指標是一種行之有效的預(yù)測和預(yù)防方法