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CoM4 – Measurement systems and Calibration Units

The versatile CoM4 flow meter automates the dynamic and precise measurement of volume and mass flows of air and gases. Combined with an electronic pressure or flow regulation, it ranks among the most precise devices on the market and enables extremely fast and fully automatic testing and measurement processes.

The CoM4 is available in various versions and housings, from a panel-mounted device to a 19″ rack-mount in IP20, as well as splash-proof in IP54. Thanks to its modular design, high-precision sensors, and flexibly configurable evaluation software, it seamlessly adapts to a wide range of testing and measurement requirements. The associated flow measurement technology can be composed of a wide variety of standards and can be set up either within the rack or externally on mounting plates.

CoM4.PressureControl

CoM4.PressureControl Measuring Device with Touch Display as 9.5" Rack
CoM4.PressureControl Measuring Device with Touch Display as Rack
CoM4.PressureControl Measuring Device with Touch Display as 19" Rack
CoM4.PressureControl Measuring Device with Touch Display as 19" Rack

Main Features

  • Pressure control system for control pressures up to 20 bar
  • Control accuracy up to 0.1 mbar
  • Measurement and control of pressure values with analog relative pressure sensors
  • Operation via apps on touch display
  • Test pressure up to 20 bar, input pressure up to 30 bar
  • Test temperature -10 to +40°C, optional humidity measurement
  • Optional correction calculations or ramps
  • Interfaces: Ethernet TCP/IP

Data Sheet

Flow measurement system with laminar flow elements.

The CoM4.FLOW flow system enables high-precision and dynamic measurement of mass and volume flows in air and gases. In this configuration, a measuring section with one or more Laminar Flow Elements (LFEs) is used. For flow rates < 20 L/min, these LFEs can also be installed within the insertion and allow for a simple and quick setup of the system for laboratory measurements. All used sensors are delivered calibrated and can also be DAkkS certified upon request. Operation and result display are generally done via a 4-inch touch display or supplied browser software. Results are determined at up to 100 Hz and can be stored long-term on the control unit.

• Very fast and precise flow calculation
• Measurement with different primary elements possible
• Material data calculation for air and pure gases
• Controller as measuring and control system

Property Functionality
Measuring Range 0.1 to 20 barg
Accuracy (Air)
(Exact specification
dependent on measuring
range and medium)
Standard:
HIGH END:
≤ 1 mbar
≤ 0.1 mbar
Sensor Type and
Measuring Ranges
Relative Pressure: 1 / 4 / 6 / 20 bar
Operating
Conditions
Input Pressure:
Input Temperature:
Humidity:
0...30 bar abs
-10...+40 °C
0...100 %,non-condensing
Environmental
Conditions
Pressure:
Temperature:
Humidity:
Atmospheric
-10...+50 °C
0...100 %,non-condensing
Medium Compatibility Clean, dry, non-condensing, non-corrosive gases
and air. The measuring medium must meet the
requirements according to ISO 8573-1.
In addition to a 5µm filter, an oil/water separator in
the compressed air supply is absolutely required.

CoM4.FlowControl

Flow Measurement and Control Device with Laminar Flow Elements and Electronic Pressure Control

The CoM4.FlowControl flow system enables not only the high-precision measurement of mass and volume flows of air and gases, but also the regulation of dynamic flow requirements. In this configuration, as in its sister system CoM4.Flow, a measuring section with one or more Laminar Flow Elements (LFEs) is used. For flow rates < 20 L/min, these LFEs can also be installed within the insertion and allow for a simple and quick setup of the system for laboratory measurements. All used sensors are delivered calibrated and can also be DAkkS certified upon request. Operation and result display are generally done via a 4-inch touch display or supplied browser software. Results are determined at up to 100 Hz and can be stored long-term on the control unit.

• Very fast and precise flow measurement
• Optimized flow control through analog output signal
• Measurement with various primary elements possible
• Material data calculation for air or other pure gases
• Controller as measuring and control system

Property Functionality
Measuring Range 1 ml/min to 64 m³/min
Accuracy (Air)
(Exact specification
dependent on measuring
range and medium)
Standard:
HIGH END:
≤ 0.3-0.5 % of full scale
≤ 0.1% of full scale
Sensor Type and
Measuring Ranges
Differential Pressure:
Relative Pressure:
Absolute Pressure:
0...20 / 60 mbar
0...1 / 2.5 / 4 / 10 / 20 bar
1...2.5 / 4 / 10 / 20 bar
Operating
Conditions
Input Pressure:
Input Temperature:
Humidity:
0...30 bar abs
0...+40 °C
0...100 %,non-condensing
Environmental
Conditions
Pressure:
Temperature:
Humidity:
Atmospheric
-10...+50 °C
0...100 %,non-condensing
Medium Compatibility Clean, dry, non-condensing, non-corrosive gases
and air. The measuring medium must meet the
requirements according to ISO 8573-1.
In addition to a 5µm filter, an oil/water separator in
the compressed air supply is absolutely required.
CoM4.Flow Measuring Device with touch display as rack with differential pressure conectors on the front panel
CoM4.FlowControl Measuring Device with touch display as rack with differential pressure conectors on the front panel
CoM4.FlowControl Measuring Device with touch display as rack with handle
CoM4.FlowControl Measuring Device with touch display as rack with handle

Main Features

  • Flow measuring system with a high accuracy and/or low measurement uncertainty for air and gas flows
  • Control of mass- or volumeflows by 0-10 Volt signal output
  • Test pressure up to 20 bar, stable up to 1 mbar
  • Operating via apps on touchdisplay
  • Test temperature -10 up to +40°C, humidity optional
  • Interfaces: Ethernet TCP/IP

Data Sheet