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振动组合探头油位:-10-40mm 油温0-100℃ 振动:0-20mm/s 安徽万珑电气
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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)连接使用一体化组合探头为不锈钢全封闭防水结构,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
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.
Temperature measurement characteristics;
Measurement range of lubricating oil temperature:0~100 ℃ ,Compreh
-ensive error of temperature measurement:±1℃
Oil level measurement characteristics:
Measurement range of lube oil level:0~50㎜(10 mm for the gear box under normal oil level oil limit position), Maximum error of oil level measurement: <= ±1㎜
Ambient temperature from -40 to 65 C(Extreme temperature resistance from -50 to 150 C)
Vibration measurement characteristics:
Range of vibration measurement:0~20 ㎜/s ,The measurement output is proportional to the effective value of the vibration velocity (RMS). Frequency range of vibration measurement: 10~1000HZ, Maximum error of vibration measurement: <=±1㎜/s
Signal output characteristics;
Active current type output:DC/4~20mA ,Requirements for passive resistive load。Maximum load resistance:< 300 Ohm
Supply characteristics of power supply:
working voltage:DC/24V±4V,Maximum protection voltage:DC/30V ,Rated current:DC/80mA, Maximum instantaneous working current:120mA,Internal voltage Ambient temperature range:-20~80℃,Ambient humidity range:0~100%(The port is sealed with 704 silicone rubber seals)
Electrical connections:
Two four bit terminals:+24V power supply、GND、It 、t-COM、Io、o-COM、Iv、v-COM:It temperature current signal output;Io oil level current signal output;Iv vibration current signal output:The typical connection refer to the schematic diagram of the connection principle of the probe