In this chapter we will cover:
- Positioning and tools for the right installation of your flow meter.
2. Positioning insertion flow meter
2.1 Insertion depth
A general rule of thumb:
Insertion depth: 0.5 * the inner pipe diameter.
The bottom of the sensor must be in the middle of the tube as seen in the picture.
Exception: Pipe sizes DN25 (1″) to DN65 (2.5″)
For these pipe sizes, measurements with an insertion type flow meter are possible:
- Accuracy may be +/- 10% due to the larger blockage effect. (for higher accuracy take the VPFlowScope In-line flow meter).
- Insertion depth is not in the middle, but 5 mm (0.2″) from the bottom of the pipe. This ensures proper temperature measurement.
2.2 Installation position
|Install the flow meter upwards at an angle of 30 degrees. This way:|
|Never install upside down. Any dirt and moisture can stick easier on the sensor. It can also build up in the ball valve, creating unwanted oil/water showers and (electro) corrosion over time.|
Flow direction indicators
For accurate measurements, it is important that the sensor is aligned correctly with the flow direction. Alignment by eye is sufficient.
There are 3 indicators to help you:
|On the VPSensorCartridge:|
|On the safety system:|
|Via the sensor|
3. Next Step
Now that you know all the information about how to position your flowmeter it is time to assemble and insert your flowmeter for fixed installation.