D620 High speed compact flowmeter

Sometimes a leak is considered a „small leak” or a leak is considered a „big leak”. If the allowable or expected rate of leakage exceeds the measuring range of conventional leakmeters, a laminar flowmeter may be required.

The D620 flow meter from ATEQ provides a fast and accurate measurement of the air flow thanks to the newly developed pneumatic and electronic modules.

The most common applications are the measurement and control of flow rates on user-produced parts. Applications may include quality control tasks in the manufacture of automotive products, household appliances (refrigerators, gas appliances), medical instruments, electrical equipment.

Measurement characteristics:

Key indicators: 

• Flow measurement by direct or indirect testing
• Continuous measurement mode
• Wide flow measurement range
• USA, S.I. and individual units
• Display measurement results converted to standard status or according to individual status indicators
• Conversion of flow to nominal pressure
• Measuring element integrated into a module
• 128 programmes
• Mechanical or electronic regulator from vacuum to 10 bar
• Set up online (via USB)
• Quick check option with flow standard calibrated on the front panel
• Data storage in internal memory or on USB stick

Our ATEQ D620 instrument has a laminar flow element connected to our differential pressure sensor.

1. ATEQ D620
2. laminar flow capillary
3. differential pressure sensor
4. piezzo pressure gauge
5. the component through which the flow is to be measured

The air flowing through the capillary creates a pressure difference between the two taps of the capillary, and this pressure difference is measured with high accuracy by the differential pressure sensor.

Direct and indirect measurement mode:

Direct flow measurement	Indirect flow measurement
Direct, or direct measurement, is when the measurement is made before the object to be measured and air is expelled from the component to atmospheric pressure. The advantage of this method is that it is easy to set up the measurement loop, but you have to wait for the flow condition to stabilise at the beginning of the measurement.	Indirect, or indirect measurement, where the airflow (collected) exiting the component being measured is measured. This method is a significant saves time, as the flow entering the device has already stabilised. In some cases, it may be difficult to „collect” the gas leaving the component, in which case either the direct method is used or a „bell” can be used to introduce the full flow into the machine.