Introduction
HONDA ELECTRONICS has brought innovations to the world by introducing ultrasonic technologies since the release of the world-first transistor fishfinder in 1956. With originality in mind, HONDA ELECTRONICS also respects technologies in various fields and participates in many collaborative projects. This “Open Technology” policy shall lead us to make further contributions that will enhance human life.
Honda Ultrasonic Sensor are applying our ultrasonic research to a variety of fields within the industrial equipment sector.
Cleaners(Ultrasonic washers), machining tools(ultrasonic welders), measuring equipment, flow meter, and so forth, have proven their use under various conditions. And new applications in the areas of ultrasonic reactor(maturity)and power dynamics(motors) hold great promise for future success.
Our Industrial Instruments Division works with over 500 ultrasonic elemental technologies to develop and market state-of-the-art products. And in joint research with clients in a variety of fields, we are furthering our goals by designing the industrial instruments of tomorrow.
Principle
Ultrasonic waves transmitted from the sensor are reflected back from the measured object, and the distance is calculated based on
the echo return time. This makes it possible to perform operations such as measuring the liquid level inside a tank, or monitoring the
remaining amount of materials in a tank.
- Distance = Speed of sound × Time
The distance to the measured surface is calculated based on the speed of sound and the time elapsed between the transmission of
the signal and the return of the echo. The distance to the bottom of the tank is set in advance, so that the amount of liquid remaining
in the tank can be calculated.
Advantages
Levels can be monitored without any contact with the materials that are measured. Levels can be monitored continuously, even under HD duty conditions.
Honda Ultrasonic Level Meter Product
1. HD320 series | Ultrasonic Level Meter
Compact, light weight level meter which include sensor and display in one unit. Graphical display shows real time wave form in A-mode and it is useful for maintenance. Mask function can avoid noise interference.
Features
- Two-wire interface can suppress the cost of installation, wiring and operation.
- Two-wire system supplies electric power through the data line. Electrical wiring is completed only with two lines, power + data and ground.
- Four screen mode can be selected
- Large display is adopted for HD323 (Display size : 50 x 25mm, 49% larger than HD320)
- Mask functio
- Unnecessary signal can be eliminated from the received signal by manually.
- Echo signal from existing structure positioned between sensor and target cause interference. Mask function removes these
- unnecessary echo effectively.
- Low-cost model with two-wire system, featuring a graphic LCD display
- Graphic LCD display shows the A-mode waveform
- When performing measurements, masking can be applied to objects positioned between the sensor and target
Main applications and usage examples
- Management of liquid level in tanks
- Management of sewage level inside pipes
- Measurement of water level in lakes, ponds, and rivers
| Model No. | HD320 | HD323 | |
| Number of channels | 1 | ||
| Frequency | 50kHz | ||
| Measurement target | liquid | ||
| Measurement distance range | 0.25 to 7.5m | ||
| Resolution | Measurement | 1mm | |
| Display | 1mm | ||
| Accuracy | ±0.25%F.S. | ||
| (±1.88cm) | |||
| Data update cycle | 10sec | ||
| Sensor directive angle (beam angle) | 14°(-6dB) / 10°（-3dB) | ||
| Power source | Voltage | 24VDC | |
| Power consumption | 0.6W | ||
| Display | Graphic LCD | ||
| Display size | 28.1 x 9.1mm | 50 x 25mm | |
| Output | 4-20 mA current | Resolution: 12 bits | |
| (Max. load resistance 500Ω 24V) | |||
| Ambient operating temperature | -20 to 70℃ | ||
| Material | PP (polypropylene) | ||
| Protection | IP65 equivalent (without lid: IP20 equivalent) | ||
| Dimensions | dia. 93 x 110mm | ||
| Cable length | 10m | ||
| Weight | 350g | ||
| Mounting screw | G2 (PF2) | ||
* Do not use metal nut or metal flange. It may cause error on measurement.
* Please use nut or flange that made of plastic.
2. HD350 series | Ultrasonic Level Meter
Compact, light weight level meter which include sensor and display in one unit. Graphical display shows real time wave form in A-mode and it is useful for maintenance. Mask function can avoid noise interference.
Features
- For screen mode can be selected
- Large display is adopted for HD353-A (Display size : 50 x 25mm, 49% larger than HD350-A)
- Mask function
- Unnecessary signal can be eliminated from the received signal by manually.
- Echo signal from existing structure positioned between sensor and target cause interference.
- Mask function removes these unnecessary echo effectively.
- Interface
- Three interface methods are prepared for remote operation.
- RS-485 (MODBUS protocol)
- 4-20 ｍA current output
- Contact points (relay output)
- Three interface methods are prepared for remote operation.
- Low-cost DSP level meter
- Graphic LCD display shows the A-mode waveform
- Wide measurement range, from 0.3 to 10 m
- When performing measurements, masking can be applied to objects positioned between the sensor and target
- Remote operation is enabled with RS-485 ( MODBUS® protocol ), 4 to 20 mA current output, and alarm output contact points
Main applications and usage examples
- Management of liquid/powder levels in tanks
- Measurement of water level in lakes, ponds, and rivers
Specification…Read More
Source : Indonesia Industrial Parts – Measurement, Equipment, Electrical & Control (inaparts.com)