Call us now: +371 22304738
Close
Piedrujas street 11, ofiss 214, Riga, Latvia, LV-1073
Mon.-Fri. 9.00-18.00, Sat.-Sun. closed
HomePRODUCT CATALOGWall Thickness MeasurementKarl DEUTSCH ECHOMETER 1076 K Concentration...

Karl DEUTSCH ECHOMETER 1076 K Concentration measurement of liquids

Special probe for liquids

By means of a special probe immersed into the liquid the ECHOMETER 1076 K determines the sound velocity of the liquid, which is a measure of the substance concentration.

The ECHOMETER 1076 K is an instrument to measure the sound velocity of liquids.

The accompanying probe is designed like a cuvette and simply gets dipped into the liquid for measurement.
Each an ultrasound transmitter and a receiver are included in the probe. Their piezo elements are covered by a protective layer to prevent damage by chemically aggressive liquids to be measured.

Subject of measurement is the time that is required for the sound to run through a constant, defined path between transmitter and receiver being submerged in the liquid.

Then the sound velocity becomes calculated by the electronic evaluation unit and is shown on the display of the gauge.

Ask Question
Category: Product ID: 2596

Description

ECHOMETER 1076 K

Concentration measurement of liquids

 

Determination of concentration in liquids by means of ultrasound

The velocity of sound in a material is a material constant depending on its chemical nature. Every chemical compound has a different velocity of sound propagation. With binary systems the velocity of sound of the system changes characteristically depending on the composition. Fig. 1 shows this interdependence, using the compound methanol-water as an example.

If the dependency of concentration is known (calibration measurement) you may determine the given composition by a measurement of the sound velocity.
The suitability of the device for use in the field of quality assurance of chemical products is shown by the the following application example. Subject of the examination was a commercially available anticorrosive as it is mainly used with cooling lubricants (for cutting metal processing).

The sound velocity of some known liquids is compiled in the following table. With compound liquids it can be assumed that the determination of concentration by means of the measurement of sound velocity is the more promising the more the sound velocities of the individual (pure) components differ from each other.

 

ORDERING INFORMATION

 

Liquid Sound Velocity Temperature T Δcl/ΔT
cl [m/s] °C m/s °C
Acetone 1174 25 -4,5
Ammonia 1663 16 –
Benzine 1166 17 –
Benzene 1295 25 -4,65
Butane/propane compound (2 bar) (6) 870 20 –
Carbon tetrachloride 943 20 -3,1
Castor oil 1477 25 -3,6
Chloroform 1001 23,5 -3,5
Diesel oil 1250 20 –
Dioxane (Diethylene dioxide) 1380 20 –
Engine oil (SAE 20 and 30) 1740 20 –
Ethyl ether 1006 20 -5,7
Ethanol 1207 25 -4,0
Ethylene glycol 1658 25 -2,1
Formic acid (HCOOH) 1287 20 –
Freon 973 20 -4,3
Glyzerin 1923 20 -1,8
Heptane (n) 1165 23 -4,2
Hexane 1113 23 –
Kerosine 1295 34 –
Mercury 1451 20 -0,46
Methyl alcohol 1121 20 -3,3
Methylene chloride 1109 20 –
Methylene iodide 977 24 –
Nitrobenzene 1477 20 -3,7
Nitrogen (N2) 869 -197 –
Octane 1192 20 -4,2
Olive oil 1381 32 –
Oxygen (O2) 911 -183,6 –
Paraffin oil 1420 33,5 –
Paraldehyde 1186 20 –
Pentane 1020 20 –
Perchlorethylene 1070 20 –
Paraffin 1395 15 –
Propyl alcohol 1234 24 –
Propyl alcohol, iso 1231 24 –
Sodium chloride solution 1 % 1487 25 –
Sodium chloride solution 25 % 1770 25 –
Spindle oil 1431 25 –
Sulfuric acid (H2SO4) 1440 15 –
Turpentine oil 1280 27 –
Tetrachloride ethane 1155 28 –
Tetrachloroethylene 1027 28 –
Toluol 1320 23 -4,3
Trichloroethylene 1049 20 –
Water H2O (distilled) 1497 25 +2,4
Water D2O (heavy) 1399 25 +2,8
Water (sea water) 1531 25 +2,4
Xylene, m 1328 22 -4,1
Zinc 2700 450 –

Related products

© HES1 2020