Electromagnetic flowmeters provide a number of advantages over other flow measurement technologies including excellent accuracy & repeatability, wide turndown ratios, long service life, and low/no pressure loss. One key consideration when sizing and specifying Mag Meters is that the fluid media must be electrically conductive; typically ≥ 5μS/cm. In order to assist users of Electromagnetic Flowmeters with the task of determining if a mag meter will work in their given application; Smartmeasurement has compiled an industry-leading reference for electrical conductivities of various fluids. In the table below, conductivity values shown in green indicate that the corresponding fluid is suitable for use with a mag meter.   If the conductivity value is red, a mag meter is not suitable and alternate flow measurement technologies should be explored. Conductivity values displayed in yellow are questionable; please contact the SmartMeasurement factory for assistance.

If a particular chemical is not listed, or if you would like application assistance with an electromagnetic flowmeter application, please feel free to contact SmartMeasurementTM’s U.S. offices at 1-866-404-5415 for assistance. Our team of application engineers would be happy to review your application and quote a suitable mag meter at industry-leading prices.

There are 228 different materials listed in the conductivity table below. Green numbers indicate high conductivity fluids suitable for magnetic flowmeters. Orange numbers indicate low conductivity and may not lead to successful applications. Red numbers warn that conductivities are too low to use magnetic flowmeters.

Material Concentration Temperature Conductivity
(weight %) (°C) (°F) (µS/cm) (µS/in)
Acetaldehyde   15 59 1.7 4
Acetamide   100 212 43 109
Acetic Acid 0.3 18 64.4 318 800
Acetic Anhydride   0 32 1 2.54
Acetone   18 64.4 0.02 0.0508
Acetonirile   20 68 7 18
Acetophenone   25 77 0.006 0.01524
Acetyl Bromide   25 77 2.4 6
Acetyl Chloride   25 77 0.4 1.016
Adipic Acid   170 338 0.2 0.508
Alizarin   233 451.4 1.45 4
Allyl Alcohol   25 77 7 18
Alum   25 77 9000 22900
Ammonia 0.1 15 59 251 600
Ammonium Chloride 5 18 64.4 91800 233200
Ammonium Iodide 10 18 64.4 77200 196100
Ammonium Nitrate 5 15 59 59000 149900
Ammonium Sulfate 5 15 59 55200 140200
Aniline   25 77 0.024 0.06096
Animal Fat   70 158 0.0000007 0.000001778
Anthracene   230 446 0.0003 0.000762
Arsenic Tribromide   35 95 1.5 4
Arsenic Trichloride   25 77 1.2 3
Asphalt Emulsion   30 86 9000 22900
Barium Chloride 5 18 64.4 38900 98800
Barium Hydroxide 1.25 18 64.4 25000 63500
Barium Nitrate 4.2 18 64.4 20900 53100
Benzadehyde   25 77 0.15 0.381
Benzine       0.076 0.19304
Benzoic Acid   125 257 0.003 0.00762
Benzonitirile   25 77 0.05 0.127
Benzyl Alcohol   25 77 1.8 5
Benzyl Benzoate   25 77 0.00001 0.0000254
Benzylamine   25 77 0.000017 0.00004318
Black Liquor   93 199.4 5000 12700
Bromine   17 63 0.00000013 0.0000003302
Bromobenzene   25 77 0.00002 0.0000508
Bromoform   25 77 0.02 0.0508
Butyric Acid 1 18 64.4 455 1200
Cadium Bromide 0.0324 18 64.4 231 600
Cadium Chloride 0.0503 18 64.4 495 1300
Cadium Iodide 1 18 64.4 2120 5400
Cadium Nitrate 1 18 64.4 6940 17600
Cadium Sulfate 0.0289 18 64.4 247 600
Calcium Chloride 5 18 64.4 64300 163300
Calcium Nitrate 6.25 18 64.6 49100 124700
Capronitrile   25 77 3.7 9
Carbon Disulfide   1 33.8 0 0
Carbon Tetrachloride   18 64.4 0 0
Carboxylic Acid   25 77 5 13
Chloriacetic Acid   60 140 1.4 4
Chlorine   -70 -94 0 0
Chloroform   25 77 0.02 0.0508
Chlorohydrin   25 77 0.5 1.27
Chocolate Liquor       0 0
Coca Cola Syrup   20 68 600 1500
Coffee Extract   84 183.2 5000 12700
Corn Syrup   32 89.6 16 41
Cranberries Chrushed   38 100.4 26 66
Cream Cheese Mix   79 174.2 5000 12700
Cupric Chloride 1.35 18 64.4 18700 47500
Cupric Nitrate 5 15 59 36500 92700
Cupric Sulfate 2.5 18 64.4 10900 27700
Cyanogen       0 0
Cyemene   25 77 0.02 0.0508