Density Measuring Device

Founded in 1872, Bopp & Reuther Messtechnik GmbH is a globally recognized leader in precision flow, density, and energy measurement technology. With more than 150 years of experience, the company has built a strong reputation for engineering excellence, German quality, and innovation in industrial measurement solutions.

Headquartered in Mannheim, Germany, Bopp & Reuther develops and manufactures a wide range of instruments, including flow meters, density and concentration meters, energy measurement systems, flow computers, and dosing solutions. These products are designed to meet the highest standards of accuracy, reliability, and durability, making them trusted worldwide in critical industries

Bopp & Reuther Density Measuring Device

Precision-engineered density measuring system designed for continuous measurement of liquid density and concentration in demanding industrial environments. The Bopp & Reuther Density Measuring Device delivers high accuracy, long-term stability, and full system integration — ideal for process control, product monitoring, and quality assurance applications.

The Bopp & Reuther Density Measuring Device is a high-accuracy density and concentration measurement system developed to meet the most demanding process requirements across industries such as chemical, petrochemical, energy, and food production. Built around the proven DIMF series oscillating tuning fork principle, it ensures consistent, precise measurements with excellent long-term stability and repeatability.

This modular system is tailor-made to customer requirements, allowing full customization of materials, connection types, instrumentation, and mounting configurations. It continuously measures the density and concentration of liquids or mixtures, making it suitable for real-time quality control, product change detection, and pipeline monitoring.

With an accuracy better than ±0.01% (±0.1 kg/m³) and repeatability up to ±0.005%, the device provides exceptional process reliability. The integrated transmitter or preamplifier enables versatile output options, including 4–20 mA signals or frequency-modulated outputs for external evaluation via Bopp & Reuther’s UR06 density or flow computers.

The device can be configured with protective housing, integrated flow control, flushing ports, and optional accessories such as manometers, strainers, pumps, and heating units. Available in both standard and Ex-rated versions, it guarantees safe operation even in hazardous environments.

Technical Information

Specification	Details
Product Type	Density measuring device for liquids and mixtures
Measurement Principle	Oscillating tuning fork (vibrating tube) technology
Application	Continuous measurement of density and concentration in liquid media
Nominal Size	10 mm
Process Connection	Swagelok® 12 mm fitting, flanges DN15 / DN25 (PN 40 or ANSI Class 150/300 RF), other ranges on request
Material	Stainless steel
Density Range	0 – 5000 kg/m³ (0 – 11023.11 lb/ft³)
Calibration Range	400 – 2000 kg/m³ (881.85 – 4409.25 lb/ft³)
Accuracy	±0.01% (±0.1 kg/m³) or ±0.02% (±0.2 kg/m³), depending on device model
Repeatability	Better than ±0.005% (±0.05 kg/m³)
Process Temperature	−25 °C to +60 °C (−13 °F to +140 °F)
Process Pressure	Up to 100 bar (depending on version)
Output	2-wire 4–20 mA for density, reference density, concentration, Brix, or Plato; frequency-modulated NAMUR output with PT100 temperature compensation
Compatible Computers	UR06 Series flow/density computers
Explosion Protection	Intrinsically safe (Ex-approved)
Special Features	Integrated flushing connections, optional flow control, protective housing or mounting frame, customizable accessories

Applications

Chemical and Petrochemical Industries – continuous density and concentration monitoring of process fluids

Oil & Gas – detection of product changes in multi-product pipelines

Food & Beverage – sugar, alcohol, and syrup concentration measurement for process quality

Pharmaceutical Production – monitoring fluid purity and formulation accuracy

Energy & Power Generation – density-based control of heating and cooling fluids

General Industrial Applications – indirect mass measurement, product quality monitoring, and blending control

Options

DIMF 1.3 or DIMF 2.0 integration, with transmitter or preamplifier configuration

Protective housing, mounting plate, or tube stand options

Integrated flow control with optional monitoring

Flushing connections for system cleaning and maintenance

Optional accessories: strainer, pressure gauges, heating, pumps, and custom piping setups

Various process connections: Swagelok®, DIN or ANSI flanges, and food-grade fittings

Explosion-proof version (Ex) for hazardous area operation

Calibration customization for specific process media

Benefits

High accuracy (up to ±0.01%) for critical density and concentration applications

Custom-built configurations tailored to each customer’s process requirements

Proven tuning fork principle ensures long-term reliability and minimal drift

Custody transfer-ready for trade or fiscal measurement systems

Wide density range (0–5000 kg/m³) for diverse liquid applications

Intrinsically safe Ex design for hazardous process zones

Integrated system with flow control and data logging capabilities

Flexible output options (analog, NAMUR, or frequency) for seamless integration

Maintenance-friendly design with flushing ports and durable materials

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