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  1. DF520   Ultrasonic level sensors non contact no drill hole level meter with Lora/NB-IoT/GPRS/3g/4g module
  2. DF520   Ultrasonic level sensors non contact no drill hole level meter with Lora/NB-IoT/GPRS/3g/4g module
  3. DF520   Ultrasonic level sensors non contact no drill hole level meter with Lora/NB-IoT/GPRS/3g/4g module
  4. DF520   Ultrasonic level sensors non contact no drill hole level meter with Lora/NB-IoT/GPRS/3g/4g module

DF520 Ultrasonic level sensors non contact no drill hole level meter with Lora/NB-IoT/GPRS/3g/4g module

The DF520 is one kind of ultrasonic liquid level sensor, which can detect the liquid level by outside bottom installation without drilling holes. The tank thickness can be up to 10mm. (For special thickness, please contact with CNDingtek for confirmation.) The resolution is 1mm or 0.1%FS (the bigger value). The measurement ranges from 0-10 meters. It can be used for kinds of tanks, including iron, aluminium alloy, plastic and etc. It is applicable for automotive, oil station, chemical storage, LPG tank, and other industrial tanks to realize realtime monitoring of storage, online inventory management, statistics and estimation of production. With LoRaWAN® module, it transmit the status via gateway to networks server and application server. User can monitor the status remotely. It is optional for different frequency, such as 470Mhz (China), 868Mhz (Europe), 915Mhz(USA), 865Mhz(India),915Mhz(Australia), 923Mhz (Australia,New Zealand). There is one version with inner battery as well as with external power supply. The battery version can work for the projects where power supply is not so easy. It is opened for customized design (OEM/ODM) on hardware or software.

  1. Detailed information
1 Overview
The DF520 is one kind of ultrasonic liquid level sensor, which can detect the liquid level by outside bottom installation without drilling holes.
The tank thickness can be up to 10mm. (For special thickness, please contact with CNDingtek for confirmation.) The resolution is 1mm or 0.1%FS (the bigger value).
The measurement ranges from 0-10 meters. It can be used for kinds of tanks, including iron, aluminium alloy, plastic and etc. It is applicable for automotive, oil
station, chemical storage, LPG tank, and other industrial tanks to realize realtime monitoring of storage, online inventory management, statistics and estimation of production.
With LoRaWAN® module, it transmit the status via gateway to networks server and application server. User can monitor the status remotely. It is optional for different frequency, such as 470Mhz (China), 868Mhz (Europe), 915Mhz(USA), 865Mhz(India),915Mhz(Australia), 923Mhz (Australia,New Zealand).
There is one version with inner battery as well as with external power supply. The battery version can work for the projects where power supply is not so easy.
It is opened for customized design (OEM/ODM) on hardware or software.
2 Specification

11 FAQ
Question: After some time, the sensor is not data or data greatly change at short time, what is
the reason?
If the installation is not so fix, or the glue is not so strong, it will defect after some time. If air
come into the gap between the transducer and the tank shell, it will result in fail. As a result, the
sensor will do not output data or output data suddenly change greatly.
Question: Can we use this sensor for more than 10 meters tank?
No, this sensor is designed for 0-10 meters range. If more than this range, please contact with
our service team to evaluate.
Question: Does this sensor tested with ATEX certificate?
No, this sensor is qualified with CE EMC, RTTE (GSM/GPRS), and RoHS certificates. But it is
without ATEX certificate now. We are planning for the ATEX certificate, but not ready now.
Please contact with our sales representative for the latest news.
Question: Can you offer the OEM version for us? Without CNDingtek logo?
Yes, it is applicable for us. Please contact with our sales representative on this issue.
Question: Can this sensor work for plastic tank? Glass tank?
Yes, we tested with plastic tank, aluminium tank, iron tank, glass tank, it worked.
Question: Can we use glue other than the AB epoxy?
Yes, you can try. But make sure the glue is good performance for vibration.
Question: Why can not read the correct level data?
1> There is air between the probe and the bottom of container; please use the vaseline or
glue ,then install gprobe.
2> The thickness of the container bottom is more than 1cm;
3> Multi-layer material at the bottom of the container.
12 After Sales
E-mail: service@dingtek.com