MDR-3200-UD 超声波多普勒流量计

MDR-3200-UD 超声波多普勒流量计检测原理以物理学中的多普勒效应为基础，利用超声波技术探测流速，测量点在机体前方，不破坏流场；测量精度高，测流线性，可测瞬时流速，也可测平均流速；无转动部件，不惧泥沙堵塞和水草缠绕，探头坚固耐用，不存在泥沙堵塞或水草、杂物缠绕等问题，最适用于泥沙悬浮物含量高，水草等漂浮物多和极其严苛的冰期场合的河流中测量。

    The detection principle of MDR-3200-UD ultrasonic Doppler flowmeter is based on the Doppler effect in physics, using ultrasonic technology to detect the flow rate, and the measuring point is in front of the body without destroying the flow field. High measurement accuracy, linear flow measurement, can measure instantaneous flow rate, can also measure the average flow rate; No rotating parts, not afraid of sediment blockage and water grass entanglement, the probe is robust and durable, there is no sediment blockage or water grass, debris entanglement and other problems, the most suitable for high sediment suspended matter content, water grass and other floating matter and extremely harsh ice age occasions river measurement.

MDR-3200-UD 超声波多普勒流量计主要特点/Ultrasonic Doppler flowmeter main features：
      1、测量精度高，量程宽，可测弱流，也可测强流/High measurement accuracy, wide range, can measure weak current, can also measure strong current

2、感应灵敏，分辨率高，不受启动流速限制/Sensitive sensing, high resolution, not limited by start-up flow rate

3、响应速度快，可测瞬时流速，也可测平均流速/Fast response speed, can measure the instantaneous flow rate, can also measure the average flow rate

4、测量线性，不存在校正曲线的K、C值/The measurement is linear, and there are no K and C values of the correction curve

5、全性能模式（工作电流12VDC 130mA）：每1秒测量5次，测量间隔时间短，响应频率快/Full performance mode (operating current 12VDC 130mA) : Measurement 5 times every 1 second, short measurement interval time, fast response frequency

      6、低功耗CEO模式（工作电流12VDC 30mA）：每5秒测量5次，传感器工作在低功耗模式/Low Power CEO mode (operating current 12VDC 30mA) : Measuring 5 times every 5 seconds, the sensor operates in low power mode

MDR-3200-UD 超声波多普勒流量计安装方式/Ultrasonic Doppler flowmeter installation：

    1、超声波多普勒流量计安装位置的上游要有渠道宽度10倍的直渠道，下游要有渠道宽度5倍的直渠道。

    The upstream of the ultrasonic Doppler flowmeter installation position should have a direct channel 10 times the width of the channel, and the downstream should have a direct channel 5 times the width of the channel.

    2、传感器应尽量安装于靠近渠底，如果渠底有很多沉淀物、淤泥、水草或者有石头会滚动，可以抬高安装位置，避免被沉积物与水草覆盖探头，或者被石头冲击探头，造成探头损坏。

    The sensor should be installed as close to the bottom of the channel as possible. If there is a lot of sediment, silt, water grass or stones at the bottom of the channel that will roll, the installation position can be raised to avoid the probe being covered by sediment and water grass, or the probe being hit by stones, causing damage to the probe.

    3、20米以下宽度的渠道，如果是矩形渠道，是安装在整个渠道宽度的15-20%处。因为安装在这个位置，最接近整个渠道水平方向上的平均流速。

    Channels with a width of less than 20 meters, if rectangular channels, are installed at 15-20% of the entire channel width. Because it is installed in this position, it is closest to the average flow rate in the horizontal direction of the entire channel.

    4、梯形渠道安装：传感器安装在斜坡和底边交界处，又叫做“坡脚”处。同时要满足：传感器最低水位没过传感器。

    Trapezoidal channel installation: The sensor is installed at the junction of the slope and the bottom edge, also known as the "slope foot". At the same time, the minimum water level of the sensor is not over the sensor.

    5、传感器要正对着水流方向

    The sensor should be facing the current

    6、井下安装：大部分工况都可以这么安装，传感器朝着水流方向，测量的流量精度比较高。

    Downhole installation: Most working conditions can be installed in this way, the sensor is in the direction of the water flow, the measurement of flow accuracy is relatively high.

MDR-3200-UD 超声波多普勒流量计安装步骤/Ultrasonic Radar flowmeter application range：
    1、先安装好固定支架，确保在最大流速2倍的条件下还可以稳定可靠固定/Install the fixing bracket first to ensure that it can be stable and reliable under the condition of 2 times the maximum flow rate
    2、传感器跟安装底座固定/The sensor is secured to the mounting base
    3、传感器电缆穿管布线，所有保护管都要固定好，在水中的保护管每0.5米最少要有1个卡子固定。传感器背后出线口要做特别保护和固定，保证水流的冲击力被保护管接收到，传感器出线不会受力。否则时间长了，传感器出线肯定会断裂。Sensor cables are routed through tubes, all protective tubes should be fixed, and the protective tubes in water should be fixed with at least 1 clip every 0.5 meters. The outlet at the back of the sensor should be specially protected and fixed to ensure that the impact force of the water flow is received by the protection pipe, and the sensor outlet will not be stressed. Otherwise, the sensor outlet will definitely break after a long time.
    4、清洁传感器上游存在的垃圾/Clean the garbage that exists upstream of the sensor

MDR-3200-UD 超声波多普勒流量计技术参数/Ultrasonic Doppler flowmeter technical parameters：
测速范围/Measuring range：0～10m/s

测速精度/Velocity measurement accuracy：1.0%±0.01m/s

测速分辨力/Velocity measurement resolution：0.01m/s

水位量程/Water level range：0.02~10m

水位精度/Water level accuracy：0.2%FS

流量范围/Flow range：1l/s~99999999m3/h

水温测量范围/Water temperature measuring range：0~60℃

水温精度/Water temperature accuracy：±1℃

工作电源/Working power supply：DC 8~14V

通信方式/Communication mode：RS-232/RS485(可选/optional)

MDR-3200-UD 超声波多普勒流量计不带安装支架/Ultrasonic Doppler flowmeter does not have mounting bracket：

MDR-3200-UD 超声波多普勒流量计带安装支架/Ultrasonic Doppler flowmeter does have mounting bracket：