Miniaturised Flow Meters with Pulse Output from DDM Sensors

The miniaturised flow meters with pulse output from DDM Sensors are characterised by their compact design and digital signal output, which simplifies their integration into existing and new systems.

Precise Flow Measurement in a Compact Format

High precision: The flow meters enable high-precision measurement of volume flow rates.

• Compact: The compact design is specifically tailored for integrated solutions and applications with limited installation space.
• Digital pulse signals: The sensors provide reliable, digital pulse signals that ensure accurate flow measurement.

Functionality and Signal Evaluation of the Pulse Output

• Mechanics: The principle of flow measurement is based on mechanical elements such as a turbine or gear, whose movement is generated by the flowing medium.
• Conversion: This mechanical rotation is converted into electrical pulses, with a direct proportionality between the pulse frequency and the flow rate.
• Integration: Thanks to this simple digital signal, the sensors can be easily integrated into programmable logic controllers (PLCs), meters and data loggers.

Technical Characteristics of Flow Meters with Pulse Output

Low Pulse Resolution

The flow meters are characterised by a particularly low pulse resolution, which enables very high measurement resolution and precise detection of even the smallest volumes. Thanks to the high number of pulses per unit of volume, the system reacts quickly to changes in flow and always provides the downstream evaluation system with an accurate and reliable measurement result.

Factory Calibration

The flow meters are supplied factory-calibrated, meaning they are ready for operation immediately after installation without the need for additional adjustment. This saves time and costs during commissioning and ensures that measurement accuracy meets the specified requirements from the very first use.

Interfaces

The flow meters are available with various connection types to ensure flexible integration into different piping systems.

• BSP (G)
• NPT
• AN / JIC

Technical Specifications at a Glance

The available model ranges cover a wide spectrum of technical requirements.

Specification	Turbine Flow Meters	Ultrasonic Flow Meters	Oval Wheel Meters	Vane Wheel Flow Meters
Model Range	VCT and FLT	Atrato, Process Atrato, MetraFlow, FlowTRANS	OG1 to OG7	Series 800, 900, 1000 and FLT2
Measuring Range	0.06 to 1200 l/min (various intermediate ranges)	2 ml/min to 520 l/min (various intermediate ranges)	10 ml/min to 500 l/min (various intermediate ranges)	50 ml/min to 160 l/min (various intermediate ranges)
Compatible Media	All liquids that do not attack stainless steel	Liquids (depending on material and secondary seal)	Liquids (depending on material and secondary seal)	Water or liquids with a viscosity similar to water
Operating Pressure	VCT: max. 25 bar; FLT: max. 500 bar	10 bar or 30 bar (high-pressure version on request)	Versions available with 10, 50, 400 and 700 bar	10 bar, 40 bar
Media Temperature	-40 to 150 °C (optionally up to 200 °C on request)	-10 to 60 °C / -20 to 80 °C / -10 to 110 °C	-20 to 80 °C / -40 to 100 °C / -40 to 150 °C	-25 to 60 °C or up to 125 °C
Material	Stainless steel and hybrid ball bearings with ceramic balls	Stainless steel, PEEK, borosilicate glass, O-ring of your choice	Stainless steel, PEEK, O-ring of your choice	Stainless steel, PVDF, O-ring of your choice
Accuracy	±0.5% FS (with VCA flow computer for linearisation/viscosity correction)	Depending on model: ±1.0% to ±2.0% of measured value	±1.0% of measured value	±1.0% of measured value
Repeatability	±0.025%	Depending on model: ±0.1% of measured value	±0.1% of measured value	±0.1% of measured value
Connection Type	Thread (AN), hose connection	Thread (BSP, NPT), hose connection	Thread (BSP, NPT)	Thread (BSP, NPT)

Applications for Our Miniaturised Flow Meters

Thanks to our precision and compact design, the miniaturised flow meters are suitable for a wide range of applications:

• Medical technology and laboratory automation
• Semiconductor manufacturing
• Monitoring of cooling circuits in machinery and plant
• Precision dosing and filling systems
• Test bench technology
• Water treatment

Installation and System Integration

System integration involves mechanical installation via threaded connections or hose fittings, taking into account the recommended installation position and the required inlet and outlet runs. Electrical connection is carried out in accordance with the defined connector pin assignments and pin-outs, whereby the power supply must be ensured. The subsequent signal processing and evaluation of the pulse signals completes the integration into the overall system.

Development of Flow Meters with Pulse Output

For bespoke solutions, we offer the option of customised development and adaptation of flow meters. This includes the modification of process connections and measuring ranges, as well as the development of specific sensor technology. Tailor-made solutions are realised in close collaboration with your development department, which also includes OEM partnerships.

Availability, Delivery and Support

Information on standard delivery times is provided on request, although common models are usually available from stock. Technical support for all products is provided directly by the DDM Sensors team to ensure expert and rapid assistance.

Get Advice on Flow Meters with Pulse Output Now

Request a no-obligation technical consultation for your specific application and work with the experts at DDM Sensors to find the optimal solution.