三参数组合探头KR939SB3 说明书中英文版
KR-939SB3型一体化三参数（油温、油位、振动）组合探头，是科热公司KR-939系列冷却塔风机安全监控系统中，一种非总线结构的通用型组合探头。它可以直接与“KR-939B3型风机安全监控器”配接，实现单台设备监控。也可以与多种通用二次仪表，或计算机数据采集测控系统(DCS、PLC等)连接使用。
这种应用于风机减速箱安全运行监测的组合探头，在其内部分别集成了测量油温、油位、振动信号的传感、转换和变送电路，直接输出与这些安全参量对应的4～20mA标准电流信号，可以配接各种通用型二次仪表或计算机数字采集监控系统。
探头温度测量使用铂电阻传感器和半导体集成器件；油位测量采用了热导式传感原理；用于振动测量的磁电式传感器，可以直接获取机械振动的速度信号，经放大器、带通滤波器、真有效值（RMS）变换器，将有效带宽内的复杂振动波形进行真有效值转换，终由电压/电流驱动电路产生4～20mA输出。
该组合探头为小型一体化全不锈钢防腐结构，输出传送方式具有长线抗干扰能力，加上良好的密封和抗震、防爆措施，使其能够在测量现场恶劣环境下长期在线工作。
该组合探头可以方便的同时获得与被测对像安全运行密切相关的重要参量，因此它也非常适用于其它旋转机械、往复运动机械等设备的直接安全监测，是现代工业、国防、科研必不可少的振动安全监测单元。
主要技术性能和指标
l 外型和安装结构：
KR-939SB3型一体化三参数组合探头为不锈钢全封闭防水结构，重量约0.6kg ，探头是以外螺纹形式，安装于风机减速箱的螺纹安装孔中，探杆插入减速箱内，从而获取减速箱中润滑油温度、润滑油油位和箱体振动信号，完成变送输出。螺纹规格和探杆插深需在定货时申明。见［图1］外型结构示意图。
Brief Introduction
KR939SB3 three parameter combination (oil level temperature vibration combination) probe is a general type combined probe that is used in cooling tower fan safety monitoring system. It can be connected with a variety of general two instruments, or computer data acquisition and control system (DCS, PLC, etc.).
This is applied to the fan gear box combined probe for safe operation of monitoring, in its internal integrated measuring temperature, oil level, vibration signal sensing, conversion and transmission circuit of direct output and the security parameters corresponding to the 4 ~ 20mA standard current signal, can be matched with a variety of general-purpose two meter or computer digital acquisition monitoring system.
The probe temperature measurement with platinum resistance sensor and semiconductor integrated device; level measurement using a capacitive sensing principle; sensor for measuring vibration, mechanical vibration acceleration signal acquisition, band-pass filter, an integral and true effective value through the amplifier (RMS) converter, the vibration waveform in the effective bandwidth of it effective value conversion; finally, the oil temperature, vibration generated by the 4 ~ 20mA output.
Main technical performance and indicators
l External and installation structures;
KR939SB3 three parameter combination probe, the probe is an external thread form, is installed in the threaded installation hole of the fan reduction box, and the probe rod is inserted into the reduction box, so as to get the lubricating oil temperature, the lubricating oil level and the box vibration signal in the reduction box, and complete the transformation output. Thread specifications and probe inserts need to be declared at the time of order. See Figure1.
三参数组合探头KR939SB3 说明书中英文版