Overview
Special feature
● The 2-wire system reduces installation, wiring, and operating costs.
What is 2-wire system?
The 2-wire system is a signal transmission method that eliminates power supply wiring by obtaining power for the amplifier from the current output signal.
● Four display screens by switching
● Mask processing
Manual mask processing is available.
Mask processing can be applied to obstacles within the sensor pointing angle for measurement.
Applications
Liquid level control of tanks, etc.
Level control of treated water in sewage pipes
Water level measurement of lakes, swamps, and rivers
Specifications
| Model | HD320 |
| Number of Channels | 1CH |
| Frequency | 50kHz |
| Object of measurement | liquid |
| Distance measurement range | 0.25～7.5m |
| Resolution | 1ｍｍ |
| 1ｍｍ | |
| Accuracy | ±0.25%F.S. (±18.8mm) |
| Data updating cycle | 10 seconds |
| Sensor Direction Angle | 14°(-6dB) / 10°(-3dB) |
| Power | DC12～24V ±10% |
| 0.6W | |
| Display | Graphic liquid crystal |
| Display size | LCD 28.1ｘ9.1ｍｍ |
| Output | Resolution: 12bit (at 24V with maximum load resistance 500Ω) |
| Model | HD320 |
| Ambient operating temperature | -20～70℃ |
| Material properties | PP (polypropylene) |
| Structure | Equivalent to IP65 (Equivalent to IP20 when lid is open) |
| External Dimensions | φ93x110mm |
| Wiring cable length | 10m |
| Mass | 350g |
| Mounting screw（Former JIS) | G2(PF2) |
*Use resin nuts, flanges, etc. for installation.
Do not use metal nuts or flanges. Doing so may cause measurement errors.
Sensor mounting
Ultrasonic Level Meter Cautions for Sensor Installation
(1) Avoid obstacles
Install the ultrasonic level meter so that there are no obstacles within the sensor pointing angle of the ultrasonic level meter.
Mask processing can be used for measurement.
(2) Install horizontally
Install the ultrasonic sensor so that its transmitting and receiving surfaces are horizontal to the object to be measured. Also, avoid installing the sensor in the center of the tank.
(3)Do not install more than one ultrasonic sensor.
Installing multiple ultrasonic level meters in the same tank will result in mutual interference and inaccurate measurements.
(4)/(5)Avoid areas where waves or bubbles are generated.
If there are severe waves or bubbles on the liquid surface, measurement may not be possible.
*Use plastic nuts or flanges for installation.
Do not use metal nuts or flanges. Doing so may cause measurement errors.
