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FAQ – VPFlowScope M

In this section, you can find most answers to common questions about the VPFlowScope M 3 in 1 mass flow meter. Do you miss somthing? Other questions? Please contact us and we will be happy to help you further.

Can you use a 35 bar flow meter in a 40 bar system?

From a safety perspective: yes. We tested our products well above 40 bar. however, the pressure sensor in the VPFlowScope cannot measure higher than 500 psi (which is  a little more than 35 bar). Above this, the sensor will start to behave non-linear, and it will eventually clip. For further details, please check the safety guidelines for the VPFlowScope 40 bar version in the user manual.

My VPFlowScope DP shows a value under the Qmin (minimum) value

How is this possible? The DP has a specified Qmin of 20 mn/sec. Below this value, it is still possible to see flow values, because if internal averaging of the meter and due to the way it is calibrated. During calibration, we set the internal cutoff on 15 mn/sec, which enables you to see fluctuations around 20 mn/sec.




How do I connect the VPFlowScope to a Modbus RS485 network?

All VPFlowScope mass flow meters are equipped with a Modbus RTU interface. This makes connecting to a modbus RS485 network very easy, provided that you are an experienced modbus user. If not, please visit to read more about the basic principles. Or read this application note.


Is modbus RTU always included in your flowmeters?

Yes, of course! Modbus RTU is included. All our flow meters are equipped with Modbus RS485 and use the Modbus RTU protocol. The new VPFlowScope M even has Modbus/TCP. So why use old-school 4 … 20 mA when you can have all parameters at once via Modbus?

Further reading on how to connect to a modbus network can be found here.

How can I access VPVision?

VPVision energy management software can be accessed in multipe ways: Ethernet, 3/4G, Wi-Fi, VPN. Your energy data is available anytime, anywhere. In Real-time.

Connecting the VPVision system to a client’s Ethernet will enable everyone, provided they connect to the same network, to access VPV by using the fixed IP-address with any laptop, tablet or smartphone.
VPN (Virtual Private Network) connection.
This will enable users to access the VPVision system from anywhere in the world with a username & password. This is also a very fast and easy way to provide remote support.
Via 3/4G module
Connect a 3/4G module to the VPVision will allow you to access the system from anywhere in the world. The difference between this method & VPN connection is that this does not require the VPVision system to be connected to the customers Ethernet. Additional costs will occur due to use of local network.
Via Wi-Fi
Connect a Wi-Fi module to the VPVision system allows you to access the VPVision software wirelessly within close range of the WiFi module. Please note this would also be possible when connected to the Ethernet of the customer and you are connected to the same network with WiFi. Use the exisitng infographic in leaflet!”

How can i integrate VPVision with the exisiting BMS/PLC/SCADA?

VPVision can be integrated with your exisiting system with the optional SQL module, offering you the last hour data to your master system.

How can I download data from VPVision?

With the CSV widget you can extract data in CSV format. The CSV export wizard can be pre-configured, which makes easy, consistent download of data a very easy task.

How can I expand the VPVision energy management system?

VPVision is easy to expand. We can add sensors to your existing or new hardware and the software can also be easily expanded with optional items and additional sensors. We can update the software remotely. You can also use existing sensors with 4 … 20 mA signals. VPVision grows and adpats according to the needs of your company.

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