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VK-202A2 SER7JK0014 CAL SCM440

产品特点:
探头型号VL0500020L01/030200-J501-CM-17GK2005
放大器型号是VK-202A2 SER7JK0014 CAL SCM440
型号VW-802J/CF-CM-17GK6005,VK-602P VK-P振动传感器
VK-302PVK-P振动传感器VK-452AVK-A振动传感器VK-202AVK-A振动传感器WKN-142K
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产品介绍

广泛应用于电力、石油、化工、冶金等行业和一些科研单位。对汽轮机、水轮机、鼓风机、压缩机、空分机、齿轮箱、大型冷却泵等大型旋转机械轴的径向振动、轴向位移、键相器、轴转速、胀差、偏心、以及转子动力学研究和零件尺寸检验等进行在线测量和保护。 
轴向振动转速位移测量对于许多旋转机械,包括蒸汽轮机、燃汽轮机、水轮机、离心
式和轴流式压缩机、离心泵等,轴向位移是一个十分重要的信号,过大的轴向位移将会引起过大的机构损坏。轴向位移的测量,可以指示旋转部件与固定部件之间的轴向间隙或相对瞬时的位移变化,用以防止机器的破坏。轴向位移是指机器内部转子沿轴心方向,相对于止推轴承二者之间的间隙而言。有些机械故障,也可通过轴向振动位移的探测

The VK-A Series vibration transducer is an eddy-currenttransducer designed to satisfy the American Petroleum Institute API St’d 670. It measures the shaft vibration of rotating machinery without contact. This is the most appropriate sensor to measure the shaft vibration of rotating machinery supported by plain bearings and is frequently used to monitor the vibration of turbine generators and compressors. In addition, it can be used in an explosive gas atmosphere due to its intrinsic safety construction.  Main Functions 1. System composition Consists of sensor, extension cable and driver. Available in system lengths of 5m and 9m to cover the total distance between sensor and driver. 2. Intrinsic safety explosion-proof construction RIIS equivalent to IEC standard Ex ia IIC T6 FM, BASEEFA 3. Environment Extensive operating temperature range (−40 to +177°C) Not affected by lubricating oil mist or dust. (exclude connector) Ammonia resistance and measures for hydrogen sulfide-protected models are also available (for details, contact us) (Not available for rain water at out door use) 4. Conforming to API Standard product which is based on API St’d 670 regarding scale factor error, interchangeability and sensor size. ■ Specifications VK-202A 2,000µm Transducer VK-452A 4,500µm Transducer Calibrated material JIS SCM440 (AISI 4140 Steel) flat surface Linear range* 2,000µm (approx. 80mils) 4,500µm (approx. 180mils) (less than ±75µm at linearity) 4,000µm (approx. 160mils) (less than ±10% at scale factor) Sensitivity* 787mV/l00µm (200mV/mil) 394mV/100µm (100mV/mil) Scale factor error* Within ±5% of 787mV/l00µm (if calibrated as a system) Within ±10% of 394mV/l00µm (if calibrated as a system) Linearity* Within ±20µm of 787mV/l00µm (if calibrated as a system) Within ±75µm of 394mV/l00µm (if calibrated as a system) Operating temperature range Sensor −40 to +l77°C (−40 to +350°F) (connector: max. +125°C) Extension cable −40 to +l77°C (−40 to +350°F) (connector: max. +125°C) Driver −38 to +80°C (−36 to +176°F) Operating humidity range 30 to 95% RH (non condensing, non-submerged) Power supply −17.5VDC to −26VDC Max. output voltage Approx. −22VDC (At −24VDC power supply voltage) Current consumption (at 10kΩ load resistance) Max. −16mA Max. −20mA Frequency response DC to 20kHz (−3db) DC to 10kHz (−3db) Output impedance 50Ω Sensor tip diameter Approx. ø5mm or approx. ø8mm Approx. ø11mm Connector material Stainless steel, Gold-plated finish Sensor cable length 0.5 or 1m System cable length Sensor cable length + Extension cable length = 5m±10% or 9m±10%



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