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  1. None touch Ultrasonic Solid Level Sensor /Meter/Detector
  2. None touch Ultrasonic Solid Level Sensor /Meter/Detector
  3. None touch Ultrasonic Solid Level Sensor /Meter/Detector

None touch Ultrasonic Solid Level Sensor /Meter/Detector

1 OverviewThe F550 is ultrasonic level (distance )sensors which measure the air height  directly and calculate the liquid or solid height based on the total height of the container (distance

  1. Detailed information

1 Overview

The F550 is ultrasonic level (distance )sensors which measure the air height  directly and calculate the liquid or solid height based on the total height of the container (distance).

The resolution is 1mm or 0.1%FS (the bigger value).

It is applicable for the close container or open container.  Furthermore it can calculate the volume of the container or the liquid. As with RS485, it is easy to integrate into the embedded system or SCADA.

In order to realize remote monitoring, there are wireless versions for F550, including Bluetooth, zigbee, Wifi, GPRS, 3G,LoRa, and NB-IoT.

wireless sensor| ultrasonic sensor | IOT sensor

2 Features

wireless sensor| ultrasonic sensor | IOT sensor

 3 Application

wireless sensor| ultrasonic sensor | IOT sensor

  • On-line stock

  • Fuel station storage

  • Farm storage

  • River/sewage level measurement

  • Manufacturing process distance detection

  • Recycle tank fill detection

  • Parking occupation

  • Human height measurement

4 Specification

 

Measurement Range

0~ 30meters (for different model)

Blind Area

0.3 meter version: 3cm

2 meter version: 20cm.

5 meter version: 25cm.

12 meter version: 75cm.

30 meter version: 150cm.

Resolution

1mm or 0.1%FS, the bigger one

Beam Angle

8~11°

Power Supply

10-32V DC

Output Signal

RS485, RS232, 0-5V, 4-20mA, TCP

Protocol

Modbus RTU/ Dingtek IOT/Dingtek GPS /Thingspeak/Customized

Operating Temperature

-20~70℃

Storage Temperature

-40 ~ 85℃

Shell Material

Polyamide

Transducer Material

Polyamide, (PVDF for erosive environment)

Media

Solid or liquid (not applicable for strong acid or strong base)

Protection Rank

IP66

Mounting

Flange/Screw

LED Display

Optional

Battery

Optional

Wireless

Optional for bluetooth, zigbee, wifi, GPRS, WCDMA, LoRa, NB-IOT.

Dimension

Standard version: 70mm(H)*72mm(W)*72mm(L) or zigbee/wifi/GPRS/UMTS version: 115mm(H)*72mm(W)*72mm(L)

5 Mechanical Drawing

 

30cmversionM30*80mm

wireless sensor| ultrasonic sensor | IOT sensor 

                                                             2/5 meters version 

wireless sensor| ultrasonic sensor | IOT sensor

                                    12 meters version


6 System Diagram

wireless sensor| ultrasonic sensor | IOT sensor


7 Test Report

 

7.1 Device

F550, zigbee module, water disk


7.2 Data

 

Ideal data    Measured data 1       Measured data 2      unit cm

  

  205.0         205.0           205.1

  185.0         184.6           184.9

  165.0         165.0           165.2  

  145.0         145.0           145.0

  125.0         124.5           124.8         

  120.0         119.6           120.0

  105.0         104.4           104.7

   85.0          84.8            84.8

   65.0          64.9            65.1

   50.0          50.0            50.2

 

7.3 Conclusion

Resolution    +-6mm,  +-0.3%FS


Repeatability  4mm, +-0.2%FS

8 Interface Definition

 

Wire

Function

Remark

Red

Power

10~32VDC

Black

GND

Ground

Yellow

RXD/B

RS232 Rx, connect with pc RS232 Tx; or RS485 B

Green

TXD/A

RS232 Tx, connect with pc RS232 Rx; or

RS485 A

Blue

Analog output

0-5V or 4-20ma

 

 

Notes: If there are label on sensor for pin definition, please act as the label shows.

 

 

8.1 Connection with Other Device


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8.2 Quick Start for Standard Version

Applicable for RS232, RS485, 0-5V, 4-20ma output


wireless sensor| ultrasonic sensor | IOT sensor

wireless sensor| ultrasonic sensor | IOT sensor


8.3 Quick Start for GPRS/3G Version

wireless sensor| ultrasonic sensor | IOT sensor

wireless sensor| ultrasonic sensor | IOT sensor


8.4 Quick Start for Wifi/Zigbee Version

wireless sensor| ultrasonic sensor | IOT sensor

wireless sensor| ultrasonic sensor | IOT sensor


8.5 Blind Area Prevent

wireless sensor| ultrasonic sensor | IOT sensor


To prevent the blind area, we recommend that the user lifts the sensor more higher than the maximum level height plus the blind area. As a result, the liquid level is covered by the measurement range of the sensor. For example, for the 2 meters version, the blind area is 20cm, so user should install the sensor more 20cm than the maximum liquid level. Of course, if the tank top shell is already more 20cm than the liquid level, there is no need to lift any more.

The user can use bolt or pipe to act as the frame to fix the sensor. Only if the pipe diameter is bigger than the transducer diameter, then the result will not be affected by the pipe. No need to consider of the ultrasonic beam interfere with the pipe side wall. Only if  the interface is vertical to the sensor head (horizontal to the sensor axle), it will effect the ultrasonic echo.

In part 7.3, there are installation demo photos.


8.6 Tank Height Configuration

wireless sensor| ultrasonic sensor | IOT sensor

 

Tank Heigh in F550 parameter Hf = Tank Height Real Hr + Lift Height Hl =Min Air Height + Max Liquid Height= Max Air Height+ Min Liquid Hight

Example: Tank Height Real Hr = 450mm, Lift Height=250mm. Tank Height in F550 should be set as Hf=700mm. Sensor ID is 01.

Max liquid height=440mm, Min Liquid height = 0mm. Then liquid range is 0-440mm. Air range is 260-700mm.

For RL command (Read Liquid Level), the sensor output is *RL0100001XX to *RL01000440XX. XX is the checksum.

For RP command (Read Liquid Level Percent), the sensor output is *RP01000001XX to *RP01000629XX. (440/700=62.9%).

For RA command (Read Air Level), the sensor output is *RA01000260XX to *RA01000700XX.(260-700mm)

For 4-20mA, the sensor output is 4-14.1mA.

If the user input min Air Height in the F550 configuration, the RP output will cover the 0.1-100.0% as well as the 4-20ma.

8.7 Underground Tank Installation

 wireless sensor| ultrasonic sensor | IOT sensor

9 Anti-erosive Version

For some special environment, like erosive liquid or air, the sensor has anti-erosive version. The transducer is made by PVDF(Polyvinylidene Fluoride). The o ring is made by PTFE (Polytetrafluoroethylene).

 

10 Protocol 

The sensor is ready for Dingtek GPS/Dingtek IOT/Thingspeak IOT/Modbus protocol. And open for customized version.

Please contact with Dingtek about the protocol issue. Usually it is disclosed based on confidentiality agreement.

 

Notes: The protocol maybe update without notification. Please contact with us for the latest protocol.

 

 

 

11 Model Naming Rules

wireless sensor| ultrasonic sensor | IOT sensor

12 Package

wireless sensor| ultrasonic sensor | IOT sensor

wireless sensor| ultrasonic sensor | IOT sensor


Size: 21*14*11cm Weight: 1KG


13 Video Link

 

Test with pipe in air to show no effect of pipe interfere. 

https://youtu.be/QQczHxn3r5k    

   

DF550 ultrasonic level sensor test on moving tank platform

https://youtu.be/lh4-vLcaTRM   

 

Ultrasonic Level Sensor for Human Height Measurement 

https://youtu.be/5RtCo6VkDZ0 

 

F550 Ultrasonic level sensor How to send protocol to your DF550

https://youtu.be/f_x7SCPniwg

14 Problem Solving

 

Problem

Reason

Resolving

After connection with PC, no data received

Ground line not connected together

connect the RS232 ground of pc with sensor ground line

RX/TX wrong connected

switch rx/tx

baudrate wrong

try 9600 or 115200 bps, one will work

data bit, start bit wrong

8 databit, 1 start bit, no checksum

PC RS232 driver error

reinstall rs232/usb driver, make loop test: connect pc rs232 rx with tx, send AB, will get AB

PC RS232/usb error

make loop test: connect pc rs232 rx with tx, send AB, will get AB. If failed, please change new RS232/usb.

After connection with pc, there is data received while power on, but send data to sensor, no reply.

PC RS232 Tx error

make loop test: connect pc rs232 rx with tx, send AB, will get AB. If failed, please change new RS232/usb.

request command format error

please act as the protocol listed command and format

Without return and new line

Check their is return and new line at end of request. in hex it is 0x0D 0A

ID wrong

check the printed info while power on, there is id listed. Or use 00 as the id to broadcase, any sensor will reply.

Character error

All character is in english, do not use other language character or symbol

After connection with pc, there is data received, but it is in mess.

Ground line not connected together

connect the RS232 ground of pc with sensor ground line

baudrate wrong

9600 or 115200 bps

data bit, start bit wrong

8 databit, 1 start bit, no checksum

PC RS232 driver error

reinstall rs232/usb driver, make loop test: connect pc rs232 rx with tx, send AB, will get AB

PC RS232/usb error

make loop test: connect pc rs232 rx with tx, send AB, will get AB

liquid height correct,but no volume data

Tank type, X, Y size not configure

Configure tank type, x, y size according to protocol listed

The liquid/solid level data on RS232 is with fixed error

tank height error

The liquid/solid level is calaculated by formula liquid/solid height= tank height - air height. If with fixed error, the user should modify the tank height to match the real height.

Liquid level change, but output data in RS232 wait for several minutes to update

Filtering mode enabled

Default is with filtering mode to prevent sudden change of level. If user want instant refresh, please change to realtime mode (remove filtering mode) by command SM.

RS232 output data not stable

sensor fixing is not stable

Please do not use flexible thing like rope to hang the sensor. Recommend to use frame or flange to fasten

other item block the signal

if there is some thing under the sensor nearly, it should effect wrong echo signal. recommend to make it clear under the beam zone of the sensor

end of pipe

At end of pipe, there is out of order signal. recommend the pipe end is in the solid or liquid, not in the air.

4-20ma output, but not reach 20ma even it is full level

installation height issue

please configure installation height to make sure the full level equal the tank heigh- installation height. After that, 20ma can be reached while full level.

Send sms to sensor, but no reply

SMS format error

check the protocol, act as protocol said to build sms and send to sensor. For sms, the checksum is not verified, so you can use random character as the checksum.

Sim card out of money

Pay money to the sim card

Sim card is not activated

Activate sim card

Sim card is not enabled with sms

Enable sms function

Sim card format is wrong

for GPRS version, it support GPRS/GSM card, cdma card is not feasible. For WCDMA version, it works for 1900Mhz or 2100Mhz, please check your simcard and sensor version.

Sim card is not inserted correctly

insert the sim card according to manual, take care of the triangle orientation.

Sensor not power on

Power on sensor, power supply is 10-32VDC

sms is blocked by cell phone software

check the blocked list of cell phone software

Sms replied, but not get data on platform

APN not correct

check apn, apn user, password, configure by sms again. make sure get correct reply

Server ip and port wrong

check ip, port, configure by sms again. make sure get correct reply.

Id wrong

if monitor at gps tracking platform, reconfigure the id.

key wrong

if thingspeak platform, reconfigure the key

channel wrong

check the channel which is listed at the sensor label



GPRS data disabled

Check with the sim card supplier, make sure the gprs data business enabled

Test area with weak gprs signal

Change to other area with strong gprs signal covered

RS232 correct, 0-5V output can not reach 5V while full tank

tank heigh wrong

default tank height is 1 meters or 2 meters. If want 5V at full tank, set tank height by RS232 or sms

the wire with volt lost

take consideration of the volt lost at the 0-5v wire

Sensor vertical to liquid/solid level, but always zero on RS232

out of measurement range

use the sensor version which can cover the measurement range. Some time, smoke or smog can weak the measurement range.

Blind area

the liquid/solid level should be out of the blind area.

not vertical to the level

sensor should be vertical to the liquid/solid level. The error should be less than the beam angle.

out of temperature

sensor should work at the temperature range -20~+70℃

not enough time

For filtering mode version, it need several time to be non zero data

transducer on tank, data non zero, but no change

not enough time

For filtering mode version, it need several time to be non zero data

some item block signal under the sensor

make the beam area under the sensor clear enough without other item except air.

Rs232 work, but wifi not connected

wifi ssid and password issue

configure the wifi ssid and password as the protocol listed. Then power off and power on the sensor. Wait several minutes it will join the wifi network. For quick test, user can use the cell phone wifi to simulate the final wifi network

wifi connected, but no data on the platform

Server ip and port wrong

check ip, port, configure by sms again. make sure get correct reply.

Id wrong

if monitor at gps tracking platform, reconfigure the id.

key wrong

if thingspeak platform, reconfigure the key

channel wrong

check the channel which is listed at the sensor label

Test area with weak gprs signal

Change to other area with strong gprs signal covered

zigbee connected, but no data on the zigbee gateway

gateway wrong

please use our recommend gateway

gateway driver wrong

use the recommend driver to install the driving software of the gateway

too far from the sensor to gateway

near the sensor and gateway



GPRS data disabled

Check with the sim card supplier, make sure the gprs data business enabled

Test area with weak gprs signal

Change to other area with strong gprs signal covered

RS232 correct, 0-5V output can not reach 5V while full tank

tank heigh wrong

default tank height is 1 meters or 2 meters. If want 5V at full tank, set tank height by RS232 or sms

the wire with volt lost

take consideration of the volt lost at the 0-5v wire

Sensor vertical to liquid/solid level, but always zero on RS232

out of measurement range

use the sensor version which can cover the measurement range. Some time, smoke or smog can weak the measurement range.

Blind area

the liquid/solid level should be out of the blind area.

not vertical to the level

sensor should be vertical to the liquid/solid level. The error should be less than the beam angle.

out of temperature

sensor should work at the temperature range -20~+70℃

not enough time

For filtering mode version, it need several time to be non zero data

transducer on tank, data non zero, but no change

not enough time

For filtering mode version, it need several time to be non zero data

some item block signal under the sensor

make the beam area under the sensor clear enough without other item except air.

Rs232 work, but wifi not connected

wifi ssid and password issue

configure the wifi ssid and password as the protocol listed. Then power off and power on the sensor. Wait several minutes it will join the wifi network. For quick test, user can use the cell phone wifi to simulate the final wifi network

wifi connected, but no data on the platform

Server ip and port wrong

check ip, port, configure by sms again. make sure get correct reply.

Id wrong

if monitor at gps tracking platform, reconfigure the id.

key wrong

if thingspeak platform, reconfigure the key

channel wrong

check the channel which is listed at the sensor label

Test area with weak gprs signal

Change to other area with strong gprs signal covered

zigbee connected, but no data on the zigbee gateway

gateway wrong

please use our recommend gateway

gateway driver wrong

use the recommend driver to install the driving software of the gateway

too far from the sensor to gateway

near the sensor and gateway


15 Certificates

wireless sensor| ultrasonic sensor | IOT sensor