SILVER AUTOMATION INSTRUMENTS LTD.
Product Category

Ultrasonic water level sensors

Ultrasonic water level sensors

Principle of ultrasonic water level meters

Ultrasonic water level sensors work on a principle similar to the radar system but the waves, in this case, are ultrasonic waves. These waves sent by a ultrasonic transmitter strike the water in the tank and because of the higher density of water then these waves, they bounce back. The traveling time of these waves from the transceiver to the water level and then back to the transceiver is sensed and detected as water level.

Features of Ultrasonic water level transmitter

These digital water level meters consist of the following built-in features.

  • 1- Contactless measurement of water level.
  • 2- The ability to filter false echo.
  • 3- High accuracy with a wide range of temperature compensation.
  • 4- Don’t get affected by the physical characters of fluid-like color or shape.
  • 5- Calibrated connection with PC.
  • 6-Electronic water level transmitters with 4-20mA output, option with HART,MODBUS or Profibus-DP

Applications of ultrasonic water level sensors

As already mentioned that these water level meters are not affected by the physical characters of water thus they can be used to measure tap water, saline water, sewage, wastewater and other types of water. Therefore these level measurement sensors find their application in wastewater management, groundwater level measurement, water well drilling, and management and many other commercial industries.

Technical Specification of Ultrasonic water level Transducer

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)

Model Selections

Item

Code

Specifications

General

HL

HL Ultrasonic Level meter

Types

T

2-wire series, compact display version

N

3-wire series, compact display version

R

RS485 series, compact display version

U

4-wire series, compact display version

T1

ExiaIICT6 ,2-wire series, intrinsically safe explosion-proof

F

Standard series, remote display version, standard 10m cable

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

04

0-4m

06

0-6m

08

0-8m

12

0-12m

20

0-20m

30

0-30m

40

0-40m

Housing Colors &Material

P

Plastic all

G

Aluminum, green coloronly for HLT, HLN, HLR series

B

Aluminum, blue colorfor all compact series except HLR series

K

Aluminum, blue & gray only for HLT series

V

Aluminum, white only for HLT series

Wet part Material

S

ABS&PVC ((Simple anti-corrosion)

F

PTFE Strict anti-corrosion

Process connection

2

G2 screw (only for the range less than 8m)

3

DN50 flange (only for the range less than 6m)

4

DN65 flange (only for the range less than 8m

5

DN80 flange (only for the range less than 12m

6

DN100 flange(all)

7

DN150 flange(all

8

DN200 flange(all

Output

C0

4-20mA(All)

C2

RS485-Modbus protocol(only for HLR,HLVR and remote series)

C3

RS485-Profibus-DP protocol(only for HLM series)

C4

Hart protocol (only for HLUHLM series)

Switch Output

0

None

2

2 SPDT (only for HLU HLF HLM HLG series)

4

4 SPDT(only for HLM series

6

6 SPDT (only for HLM series

Power supply

D

DC24V

A

AC220V

*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


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