Ultrasonic Level Transmitter ALIT GT/BT

Ultrasonic Level Transmitter ALIT GT/BT

The series is an compact 2-wire series ultrasonic level meter for continuous non-contact level measurement in liquids and solids.

  •  Level or Distance mode
  •  4-20 mA, 2 wire output
  •  Continuous non-contact level measurement with compact version
  •  LC Display
  •  Exproof  version
  •  All metal outer cover ( IP67 ), airproof and alkali-resisting
  • Description
  • Application Areas
  • Reviews (0)
  • Specifications
  • Brochure
  • User’s Guide
  • How It Works
  • F.A.Q

Product Description

ALIT Ultrasonic Level Transmitters

ALIT is the collection of ultrasonic,electronics, software in one of the high-tech products, being domestic self-developed instrument, all kinds of industrial field measurement level and material level’s instrument of choice. ALIT  series ultrasonic level meter’s the indicators have reached international advanced level of similar products, can fully replace imported ultrasonic level meter.It can not only fixed point and measure continuely, but also can provide the necessary telemetry, or remote control signal. Compared with radioactive level measuring technology, ultrasonic technology does not need protection; compared with the laser ranging technology, it has the advantages of simple and economic, at the same time ultrasound generally do not need the moving parts, so installation and maintenance will be more convenient.

Widely used in;

petroleum, mining, power plants, chemical plants, water treatment plants, waste water  treatment plants, agricultural water, environmental monitoring, food, brewing, beverage, additives, edible oils, dairy products), flood control, flood prevention, hydrologic monitoring, open channel, space location and many other industries.

Working Principle:

Ultrasonic level meter is  installed in the upper container under the control of the electronic unit, its probe  launch a bunch of ultrasonic pulse to the object tested. Sound waves is reflected by an object’s surface, part of the echo is received by the probe and converted into electrical signals. From ultrasonic’s launch to be accepted, the time and distance from the probe to the tested object is proportional。Electronic unit test the time and according to the known velocity to calculate the distance being measured.Through the subtraction operation, level values are gaine.
Since the speed of sound is affected by air temperature, ALIT  Ultrasonic level transmitters  include a built-in temperature sensor. Level or distance measurements are automatically temperature compensated throughout the operating temperature range of the ALIT.

1-13122G50J44W

  • Waste Water Treatment Plants
  •  Potable Water Treatment Plants
  •  Mining, Pulp and Paper Mills
  •  Food, Beverage & Industries
  •  Chemical, Petrochemical Industries
  •  Pools, Lakes and Dams
  •  Pump Stations
  •  Hydro-Electric Power Plants

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Technical Features:

Measuring Range:                                                    Dead Band

ALIT4 : 4m ( Liquid )                                                    ALIT4 : 0.20m

ALIT6 : 6m ( Liquid )                                                    ALIT6 : 0.25m

ALIT8 : 8m ( Liquid )                ALIT8: 3m ( Solid )      ALIT8 : 0.30m

ALIT10: 10m ( Liquid )            ALIT10: 4m ( Solid )    ALIT10: 0.40m

ALIT12: 12m( Liquid )             ALIT12: 5m ( Solid )    ALIT12: 0.45m

ALIT15: 15m( Liquid )            ALIT15: 6m ( Solid )    ALIT15: 0.80m

ALIT20: 20m( Liquid )             ALIT20: 10m ( Solid )  ALIT20: 0.80m

ALIT30: 30m( Liquid )             ALIT30: 15m ( Solid )  ALIT30: 1.20m
ALIT40: 40m( Liquid )             ALIT40: 20m ( Solid )  ALIT40: 1.60m
Accuracy:                          0.2% Full span (In air)

Mode of Indication:          4 Digit LCD

Output                 4...20 mA, 500 ohm (HART protocol optional)

Parameter set up:           3 induction buttons

Temperature Range:      -40 0C ...75 0C  (LCD:-20 0C ...+70 0C)

Temperature compensation:    The whole range   is automatic

Pressure Range:             ±0.1MP (press definitely)

Power Supply:                  24 VDC,    ≥30mA

Beam Angle:                     8º(3db)

Measure Cycle:               1.5second

Crust Material:                AL

Sensor Material:             ABS/PVC/PTFE

Protect Grade:                 IP67

Mode Installation:  Whorl , Flange&Frame

Connection:              G2, for ranges 4m, 6m, 8m
M94X2.0   for the rest ones

Ultrasonic Level Transmitter ALIT

User guide for ALIT BT

User guide for ALIT GT

Ultrasonic level meter is  installed in the upper container under the control of the electronic unit, its probe  launch a bunch of ultrasonic pulse to the object tested. Sound waves is reflected by an object's surface, part of the echo is received by the probe and converted into electrical signals. From ultrasonic's launch to be accepted, the time and distance from the probe to the tested object is proportional。Electronic unit test the time and according to the known velocity to calculate the distance being measured.Through the subtraction operation, level values are gaine.Because of the influence of temperature on the speed of sound, the instrument should be measured temperature, to correct the speed of sound.

1-13122G50J44W

What is the minimum distance to tank wall??

Answer: The beam angle is 8°, in order to avoid large echo loss and false echo, the probe should not be mounted closer than 1 m to the wall. It is advisable to maintain a distance of at least 0.6m from the center line of the probe for every foot (10cm per meter) range to the obstruction

if the liquid is foaming is there any mounting method ?

Answer: Foaming liquids can reduce the size of the returned echo because foam is a poor ultrasonic reflector. Mount an ultrasonic transmitter over an area of clear liquid, such as near the inlet to a tank or well. In extreme conditions, or where this is not possible, the transmitter may be mounted in a vented stilling tube provided that the inside measurement of the stilling tube is at least 4 in. (100 mm) and is smooth and free from joints or protrusions. It is important that the bottom of the stilling tube stays covered to prevent the ingress of foams

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