Density and Concentration Meter DIMF 1.3

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 and Concentration Meter Series DIMF 1.3 PV

Bopp & Reuther Density and Concentration Meter Series DIMF 1.3 TVS

Bopp & Reuther Density and Concentration Meter Series DIMF 1.3 PV

High-precision density and concentration meter based on the oscillating U-tube principle for accurate measurement of liquids. The Bopp & Reuther DIMF 1.3 PV offers outstanding stability, custody-transfer suitability, and durability for industrial and process applications.

The Bopp & Reuther DIMF 1.3 PV is a density and concentration meter that operates on the oscillating U-tube principle, delivering highly accurate density and concentration readings of liquids, including non-corrosive and liquefied gases. With an accuracy of up to ±0.01% (±0.1 kg/m³), it ensures precise and repeatable measurements in even the most demanding process environments.

Constructed with a stainless-steel housing (1.4571) and NiFeCr alloy tuning fork, the DIMF 1.3 PV guarantees long-term stability and corrosion resistance. It features a seal-free instrument design, making it ideal for custody-transfer measurements and ensuring zero leakage risk in high-integrity systems.

With Zone 1 explosion protection, this density meter is suitable for hazardous areas, while the NAMUR signal interface and Pt100 temperature sensor allow seamless connection to flow computers (e.g., UR06) for real-time data processing. The DIMF 1.3 PV supports both 4–20 mA outputs and HART® communication, providing digital integration for modern process automation systems.

Its wide range of flange and threaded process connections (DIN or ANSI) allows easy installation across various liquid measurement applications.

Technical Information

Specification	Details
Product Type	Density and concentration meter (oscillating U-tube)
Model	DIMF 1.3 PV
Measurement Principle	Oscillating U-tube with preamplifier
Application	Density and concentration measurement of liquids
Measuring Accuracy	± 0.01 % (± 0.1 kg/m³) of measured value
Explosion Protection	Zone 1 (Ex-approved)
Process Temperature	−40 °C to +100 °C
Process Pressure	Up to 100 bar (depending on connection type)
Housing Material	Stainless steel (1.4571)
Wetted Parts	NiFeCr special alloy (tuning fork), stainless steel connections
Power Supply	NAMUR
Outputs / Display	NAMUR (original frequency), Pt100 temperature sensor, 4–20 mA output, HART® communication
Process Connection	G ¼ (ISO 228), Flange DN 10 PN 40 / 100 (DIN), ANSI 150 / 300 / 600 (½”)
Special Features	Seal-free construction, suitable for custody transfer, high accuracy and stability

Applications

Process and Custody Transfer Measurement – precise density and concentration control for liquid products

Petrochemical and Chemical Industry – measurement of non-corrosive or liquefied gases

Food & Beverage Processing – concentration measurement in sugar solutions, alcohols, and syrups (e.g., °Brix, % mass)

Pharmaceutical Industry – accurate control of solutions and solvents

Energy and Utilities – density monitoring for fuel and liquefied gas applications

Options

Various process connections: G ¼ (ISO 228), DIN or ANSI flanges

4–20 mA and HART® outputs for integration into process control systems

NAMUR signal interface with Pt100 sensor for temperature-compensated measurement

Seal-free version for custody transfer and leakage-free operation

Explosion-proof (Zone 1) for hazardous environments

Benefits

Ultra-high accuracy (± 0.01%) for density and concentration measurement

Robust oscillating U-tube design ensures long-term stability

Seal-free instrument body ideal for custody transfer and safety-critical use

Corrosion-resistant materials for chemical and industrial liquids

Wide temperature and pressure range (−40 °C to +100 °C / up to 100 bar)

Digital and analog outputs (4–20 mA, HART®, NAMUR) for automation compatibility

Compact and easy installation with multiple connection standards

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Bopp & Reuther Density and Concentration Meter Series DIMF 1.3 TVS

High-precision density and concentration meter based on the oscillating U-tube principle with integrated transmitter for real-time process monitoring. The Bopp & Reuther DIMF 1.3 TVS provides reliable, seal-free, and highly accurate density and concentration measurements for liquids, including liquefied gases.

The DIMF 1.3 TVS from Bopp & Reuther is an advanced density and concentration meter designed for precise measurement of liquids in industrial and process applications. Utilizing the oscillating U-tube principle with an integrated T-series transmitter, it delivers direct, temperature-compensated density and concentration readings with exceptional accuracy of up to ±0.01% (±0.1 kg/m³).

Built with stainless-steel housing (1.4571) and a NiFeCr alloy tuning fork, the DIMF 1.3 TVS ensures corrosion resistance, long-term stability, and minimal maintenance requirements. Its seal-free design makes it ideal for custody transfer or critical process applications, preventing leakage and ensuring operational safety.

Equipped with 4–20 mA and HART® communication outputs, and a 2-line LCD display, the DIMF 1.3 TVS provides continuous real-time measurement and easy data interpretation. It allows direct output of operating or reference density, or concentration values in % mass, % volume, Brix, or Bé units — suitable for process monitoring and product quality control.

This versatile density meter is Ex-approved for Zone 1, rated for pressures up to 100 bar, and operates reliably across −40 °C to +100 °C, making it suitable for both standard and hazardous industrial environments.

Technical Information

Specification	Details
Product Type	Density and concentration meter (oscillating U-tube with transmitter)
Model	DIMF 1.3 TVS
Measurement Principle	Oscillating U-tube with T-series transmitter
Application	Density and concentration measurement of liquids
Measuring Accuracy	± 0.01 % (± 0.1 kg/m³) of measured value
Explosion Protection	Zone 1 (Ex-approved)
Process Temperature	−40 °C to +100 °C
Process Pressure	Up to 100 bar (depending on process connection)
Housing Material	Stainless steel (1.4571)
Wetted Parts	NiFeCr special alloy (tuning fork), stainless steel (connections)
Power Supply	24 V DC (min. 14 V / max. 30 V DC)
Outputs / Display	4–20 mA output, 2-line LCD display, HART® communication
Process Connection	G ¼ (ISO 228); Flange DN 10 PN 40 / PN 100 (DIN 2545 / 2547); ANSI 150 / 300 / 600 (½”)
Special Features	Seal-free design, temperature-compensated readings, support point table for complex or confidential media

Applications

Petrochemical and Chemical Industries – accurate measurement of process liquids and liquefied gases

Food & Beverage Industry – concentration and density measurement for sugar, alcohol, or syrup-based solutions

Pharmaceutical Production – quality control in formulation and solvent monitoring

Energy and Power Sector – density monitoring of fuel oils and thermal transfer fluids

General Industrial Processing – control of 2-substance mixtures and fluid compositions

Options

Outputs: 4–20 mA, HART® digital communication

Display: 2-line LCD for direct density/concentration visualization

Multiple process connections: G ¼ thread or DIN/ANSI flanges

Seal-free instrument body for leakage-free, custody-transfer operations

Explosion-proof (Zone 1) for hazardous environments

Temperature correction to 15 °C or 20 °C for reference density outputs

Benefits

Exceptional accuracy (±0.01%) for reliable density and concentration measurement

Integrated transmitter simplifies installation and signal handling

Seal-free design ensures maximum safety and leak prevention

Robust stainless-steel and NiFeCr construction for chemical resistance

Wide operating range (−40 °C to +100 °C, up to 100 bar)

Multiple output formats for flexibility in process integration

HART® communication for smart diagnostics and data access

Supports complex or confidential media through programmable support point tables

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