wireless sensor| ultrasonic sensor | IOT sensor

Smart Cities Solution Supplier CNDingtek

Home > Product > Density Sensor

    Ultrasonic Density Sensor DM500

    • Weight:No parameters
    • Brand :Ultrasonic Density Sensor
    • No.: DM500

    The DM500 is one type of liquid density sensors which calculate the density from ultrasonic wave speed in the liquid.

    1. Detailed information

    1.Overview

    The DM500 is one type of liquid density sensors which calculate the density from ultrasonic wave speed in the liquid.

    As it is based on the principle of speed related to the density of media. So it is applicable for the  liquid which is with known value of referenced density.  

    It is compact design with small dimension and it is easy to install. It is not necessary to be vertical in the liquid. Only if it is in the liquid, it is enough.

    Furthermore, it is applicable for customized design, such as different mechanic structure, measurement range, and other OEM/ODM business.

    2.Specification

     

    Measurement Range

    0.1~2g/cm3

    Resolution

    0.01g/cm3

    Drift per year

    ±0.5%FS

    Power Supply

    12-24V DC

    Output Signal

    RS232/RS485

    Working Environment

    -40 ~ 85℃, 5~95%RH

    Protection Rank

    IP68 for the transducer, IP66 for controller box

    Wireless

    Optional for zigbee, wifi, GPRS, 3G(UMTS).

    3.Principle

    For the DM500, the sensor directly measure the ultrasonic wave speed v1 in current media.Then calculate the rate of v1 to reference media ultrasonic wave speed v0.Finally draw out the density of current media p1 based on the referenced media density p0. Formula is

    p1:p0=(v1:v0)^2.            

    4.Interface Definition

    Pin 1: Red Line: V+,

    Pin 2: Blue Line: RS485 A+/ RS232 TX

    Pin 3: Black Line: GND

    Pin 4: Yellow Line: RS485 B-/ RS232 RX

    If there is label of wire definition on the device, please act as the label said!

    5.Part List

    The package include two parts, one is the ultrasonic transducer which is need to be put into the liquid to be measured, the other is the controller box.

    Controller Box                  Ultrasonic Transducer

    6.Video


    DM500 ultrasonic density sensor test with liquids

    https://www.youtube.com/watch?v=uz1Xwas3ZGs&t=96s

     

    DM500 Test in Beer 

    https://www.youtube.com/watch?v=OWOpfj-5tPI&t=35s