產(chǎn)品品牌：FEEJOY

工作形式：SS

導(dǎo)波雷達物/液位計型號：RRF-21

產(chǎn)品名稱：導(dǎo)波雷達物/液位計

導(dǎo)波雷達物/液位計應(yīng)用：液體、固體顆粒

導(dǎo)波雷達物/液位計測量范圍： 35M

導(dǎo)波雷達物/液位計過程連接：螺紋、法蘭

導(dǎo)波雷達物/液位計過程溫度： -40~300℃

導(dǎo)波雷達物/液位計過程壓力： -1.0-40bar

導(dǎo)波雷達物/液位計精度： 2mm

導(dǎo)波雷達物/液位計頻率范圍： 100MHz-1.8GHz

導(dǎo)波雷達物/液位計防爆防護等級：ExiallCT6/IP68

導(dǎo)波雷達物/液位計信號輸出：4 20mA(兩線)/HART/Profibus PA

雷達物液位計

產(chǎn)品說明

雷達物位計采用發(fā)射-反射-接收的工作模式。雷達物位計的天線發(fā)射出高頻電磁波，這些波經(jīng)被測對象表面反射后，再被天線接收，電磁波從發(fā)射到接收的時間與到液面的距離成正比。 雷達物位計記錄脈沖波經(jīng)歷的時間，而電磁波的傳輸速度為常數(shù)，則可算出介質(zhì)表面到雷達天線的距離，從而知道罐內(nèi)介質(zhì)的物位或距離。 雷達物位計有兩種方式即調(diào)頻連續(xù)波式和脈沖波式。采用調(diào)頻連續(xù)波技術(shù)的液位計，功耗大，須采用四線制，電子電路復(fù)雜。而采用雷達脈沖波技術(shù)的液位計，功耗低，可用二線制的24V DC供電，容易實現(xiàn)本質(zhì)安全，精確度高，適用范圍更廣。 雷達物液位計適用于各種過程條件復(fù)雜的容器、儲罐、倉料等，且不受被測介質(zhì)物理特性變化影響的外部測量，兩線制技術(shù)，適用于防爆場合，非接觸式與連續(xù)測量的脈沖型物位計最大測量距離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.