雷达物位计、液位计，智能雷达物位、计液位计

产品说明

雷达物位计采用发射—反射—接收的工作模式。雷达物位计的天线发射出高频电磁波，这些波经被测对象表面反射后，再被天线接收，电磁波从发射到接收的时间与到液面的距离成正比。  雷达物位计记录脉冲波经历的时间，而电磁波的传输速度为常数，则可算出介质表面到雷达天线的距离，从而知道罐内介质的物位或距离。 雷达物位计有两种方式即调频连续波式和脉冲波式。采用调频连续波技术的液位计，功耗大，须采用四线制，电子电路复杂。而采用雷达脉冲波技术的液位计，功耗低，可用二线制的24V DC供电，容易实现本质安全，精确度高，适用范围更广。 雷达物液位计适用于各种过程条件复杂的容器、储罐、仓料等，且不受被测介质物理特性变化影响的外部测量，两线制技术，适用于防爆场合，非接触式与连续测量的脉冲型物位计最大测量距离70m。

Radar Level Transmitter

Product Description

Radar Level Transmitter using the operating mode of emission-reflection-receiving. Its antenna transmits high frequency electromagnetic waves, these waves is reflected by the surface of the medium and received by the antenna again. The time from transmitting to receiving is proportional to the distance of the level surface. Radar level transmitter records the time of the pulse wave passing through, while the transmitting speed of the
electromagnetic wave is a constant, you can calculate the distance from the medium surface to the radar antenna, and get the level or height of the medium. There are two types of radar level transmitter, one is frequency modulation continuous wave(FMCW) type, and the other one is pulse wave type. For the FMCW type, power consumption is high, so it needs 4-wire system, the electronic circuit is complicated. While for the pulse
wave type, the power consumption is low, it is available to use 2-wire system and power of 24VDC. With intrinsic safety, high precision, it is used more widely. Generally, radar level transmitter is suitable for variety of containers, tanks, hoppers etc. at complex process conditions. It is not effected by the measured medium's physical properties change. Two-wire technology, suitable for explosion-proof field site. The max. measuring range is up to 70M for Non-contact and continuous measurement of pulse wave type.

型号：FNRRF系列

产品名称：    智能雷达物/液位计
测量范围：    20M，35M（可定制）
过程连接：    法兰/螺纹（可定制）
过程温度：    -40~110℃
过程压力：    -1.0-40bar
精度等级：    ±3mm
频率范围：    8.4GHz
防爆防护等级：ExiallCT6/IP68
信号输出：    4…20mA(两线)/HART/Profibus PA