Density and Concentration Measurement DIMF Bopp & Reuther
Density and Concentration Measurement DIMF Bopp & Reuther
Density and Concentration Measurement DIMF Bopp & Reuther
Density and Concentration Measurement DIMF Bopp & Reuther
Density and Concentration Measurement DIMF Bopp & Reuther

Density and Concentration Meter DIMF


Manufacturer: Bopp Reuther

The liquid density meter of the DIMF series is used for continuous measurement of the density/concentration of liquids or liquid mixtures. The proven tuning fork principle guarantees a high acccuracy with very good long term stability.The robust design ensures reliable operation even under harsh operating conditions.

pdf datasheet

DIMF Liquid density meters are used for continuous monitoring of density, mass flow measurement, fiscal measurements, quality control, monitoring of waste water, product recognition, dosing, injection or blending of additives, control of chemical reactions, measurement of concentrations, monitoring and control of distillation, filtration, sedimentation, mixing or fermentation processes, process control, measurement of solid percentages in liquids, measurement of foams and suspensions etc.density and concentration measurement cabinet setup

  • Concentration measurement of acids and bases (hydrochloric/sulphuric/nitric acid, sodium hydroxide, aromatic chlorine solution, ammonia, urea,…)
  • Concentration measurement of alcohol and solvents (ethanol, methanol, DMAC, methyl butanol, aceton, glycol, adblue, anti-freeze…)
  • Concentration measurement of solids in liquids (porcelain, ketchup, fat in milk, sugar/Brix, water/starch, tartaric acid…)
  • Density measurement (hydro carbons, bio fuel, air bubbles in water …)


Operating Principle

The DIMF series density/concentration meter is based on the oscillating element principle. The fluid to be measured flows through the oscillating element (a tuning fork for Type 1.3, an oscillating tube for type 2.0) that is excited electro-magnetically and will oscillate at its natural frequency. Changes in the density of the fluid lead to changes in the natural frequency. These frequency changes will be picked up by the electronic transducer and converted into a signal proportional to density or concentration

DIMF 1.3 Hollow tuning fork; Measurement of almost all pumpable non-aggressive liquids or liquid mixtures, especially hydrocarbons - for custody transfer applications
DIMF 2.0 / 2.1 Vibrating element in the form of a Tuning fork bent tube; for chemicals and aggressive media

Type DIMF 1.3         
DIMF 2.0         
DIMF 2.1        
Flow rate 0.3 up to 10 l/min  
1.5 up to 50 l/min  
20 up to 350 l/min  
1 up to 6 l/min  
Measuring accuracy     
of measured value
up to ±0.01 % up to ±0.02% up to ±0.02% up to £0.1 %


Cabinets, Compact Solutions

 density measurement cabinet  Density Measurement for Custody transfer light oils  CDU compact density unit
Density Cabinets:
Sampling Function for Custody Transfer, Urea Measurement, etc.
Density measurement combined with a turbine meter and a flowcomputer for indirect mass metering of light hydro carbons CDU Compact Density Unit


Technical data

Nominal size DN6 to DN50 (1/8“ bis 2“)
Process connection Flanges or Swagelok, sanitary threads, sterile fittings
Material Stainless steel, Hastelloy, Tantalum, Monel, Inconel, 304L
Flow Range

0 to 5,000 kg/m³  (0 to 312 Ib/ft³)

up to ±0.01%  (0,1 kg/m³ depending on model)
Process temperature   

-40°C to +210°C  (-40°F to +410°F)

Process pressure  
up to 300 bar (4,351 psi)
Output current output, frequency output, RS232
Ex-protection Flame proof or intrinsically safe