Working Principle of Ultrasonic tank level
transmitter
These tank level meters are installed on a
top of a tank filled with a liquid in a way that is not immersed in liquid.
They consist of a transceiver that emits ultrasonic waves in the direction of
the liquid. These waves strike the fluid and are reflected in the backward
direction towards the sensor. The time lag in this process is detected and
detected as the fluid level in the tank.
Features of Ultrasonic tank level meter
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1- Can be used for both the plastic and
metal tanks.
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2- Easy and contactless installation to a
tank.
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3- Availability of other accessories like
display, alarms and fluid level control systems.
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4- Functions for a wide range of fluids
like water, oils and other hydraulic fuels.
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5- Can be connected to any of the
industrial equipment.
Application of Ultrasonic tank level
indicator
These ultrasonic level measurement
instruments are used widely in industries for the measurement of fluid levels.
Any type of tank is applicable to these ultrasonic tank level sensors like metal tanks and plastic
tanks. In industries, most machines work on fuels and thus their level is
measured by these modern level sensors. Therefore the water industry, oil
industry, mining and waste management industries, and others utilize these
sensors.
Technical Informaiton of Ultrasonic tank level sensors
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Level Range:
0-4m, Blank distance
: 0.20m
0-6m,
Blank distance : 0.25m
0-8m,
Blank distance : 0.30m
0-12m,
Blank distance : 0.50m
0-20m,
Blank distance : 0.80m
0-30m,
Blank distance : 1.20m
0-40m,Blank
distance : 1.5 m
Accuracy: 0.2% of span
Output: 4-20mA
Output Load: 0-500Ω
|
|
Display: 4 Digits LCD(All types have displays)
Temperature compensations: Automatic
Pressure Rating: 0.1Mpa
Cable Gland: PG13.5
Beam Angle: 8°, 5°(3db)
Sensor Material: ABS &PVC or PTFE
Protection level: IP67
Installation: Thread, Flange, Bracket
Parameter setting: 3 Induction buttons
Temperature Range : -40 ~75℃,HLT1 -20 ~75℃
Sampling time: 1second (adjustable)
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Model
Selections
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Item
|
Code
|
Specifications
|
|
General
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HL
|
HL
Ultrasonic Level meter
|
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Types
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T
|
2-wire
series, compact display version
|
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N
|
3-wire
series, compact display version
|
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R
|
RS485
series, compact display version
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U
|
4-wire
series, compact display version
|
|
T1
|
ExiaIICT6
,2-wire series, intrinsically safe explosion-proof
|
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F
|
Standard
series, remote display version, standard 10m cable
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M
|
Multi-functional,
remote display version, standard 10m cable
|
|
VT
|
2-wire
series, no display,24V DC,4-20Ma,cable 10m
|
|
VT-T
|
2-wire
series, no display,24V DC, Blue tooth config.cable10m*1
|
|
VR
|
4-wire,no
display,RS486,modbus RTU, cable 10m *2
|
|
Range
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04
|
0-4m
|
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06
|
0-6m
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08
|
0-8m
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12
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0-12m
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20
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0-20m
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30
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0-30m
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40
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0-40m
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Housing Colors &Material
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P
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Plastic （all）
|
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G
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Aluminum,
green color（only for HLT, HLN,
HLR series）
|
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B
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Aluminum, blue color（for all compact series except
HLR series）
|
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K
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Aluminum,
blue & gray （only for HLT series）
|
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V
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Aluminum,
white （only for HLT series）
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Wet part Material
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S
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ABS&PVC
((Simple anti-corrosion)
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F
|
PTFE （Strict
anti-corrosion）
|
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Process connection
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2
|
G2
screw (only for the range less than 8m)
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3
|
DN50
flange (only for the range less than 6m)
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4
|
DN65
flange (only for the range less than 8m）
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5
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DN80
flange (only for the range less than 12m）
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6
|
DN100
flange(all)
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7
|
DN150
flange(all）
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8
|
DN200
flange(all）
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Output
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C0
|
4-20mA(All)
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C2
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RS485-Modbus
protocol(only for HLR,HLVR and remote series)
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C3
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RS485-Profibus-DP
protocol(only for HLM series)
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C4
|
Hart
protocol (only for HLU，HLM series)
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Switch Output
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0
|
None
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2
|
2
SPDT (only for HLU HLF HLM HLG series)
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4
|
4
SPDT(only for HLM series）
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6
|
6
SPDT (only for HLM series）
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Power supply
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D
|
DC24V
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A
|
AC220V
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*1HLVT-T
is can be figured by blue tooth, the software is not free, consult sales for
price.
*2
HLVR input power supply can be DC 3.5-5V, DC9-12V,DC 20-32V option.
