HD350-A [Ultrasonic Level Meter]

HD350-A [Ultrasonic Level Meter]

Discontinued　　　　　

Overview

Special feature

●Four display screens by switching

Tank Measurement image

●Mask processing

Manual mask processing is available.
Mask processing can be applied to obstacles within the sensor's directional angle for measurement.

●Communication Functions

Three communication functions enable remote control.　　　
1) RS-485 (MODBUS protocol)
2) 4-20mA current output
3) Alarm output contact

Applications

Liquid and powder level control of tanks, etc.
Water level measurement of lakes, swamps and rivers

Specifications

Model HD350-A
Number of Channels 1CH
Frequency 50kHz
Object of measurement Liquid & Powder
Distance measurement range 0.3～10m
Resolution Measure 1ｍｍ
Display 1ｍｍ
Accuracy ±0.25%F.S.
(±2.5cm)
Data updating cycle 0.5 seconds
Sensor Direction Angle 14°(-6dB)　/　10°（-3dB)
Power Voltage DC12～24V　10%
Power consumption 3W
Display Graphic liquid crystal
Display size LCD　28.1ｘ9.1ｍｍ
Output Alarm output 1 each upper and lower NPN open collector
4-20mA current output Resolution: 12bit
(Maximum load resistance: 500Ω)
Interface RS-485 (transmission distance: within 1200m)
Model HD350-A
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)

●Optional accessory: 30m cable

*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

Sensor mounting

(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.

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