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Troubleshooting#

Work-in-progress: This section may be incomplete as it is based on customer feedback and sales support cases

General problems#

The live graph shows zero even though flow is present and the M12 connector is plugged in

  1. Check if the port config if set right for both flowmeters (1/2-channel).

  2. Check if the sensor is supplied with power.

  3. If all else fails, try reconnecting the datalogging device.

Help: I can't use the slider, it always shows the input value

bug

This is a bug that happens when you use your CTRL key. You can fix this by pressing and holding the CTRL key on your keyboard and left-clicking on the bugged slider. Now release the CTRL key, press somewhere else in EasyGraph and then try again. It should be fixed!

About log.flow#

What does "internal boost converter" mean?

The internal boost converter allows the user to generate a stable 24V output voltage for supplying the flowmeters by only using the USB connection (and no DC-Jack!). It is a ciruit that will transform the 5V bus voltage up to 24V but with a low current capability (due to USB power draw limitations). Therefore it is advisable to only connect low power flowmeters with a total current consumption \(I<50 \textrm{ mA}\) to the log.flow if using the converter. Otherwise the internal circuit will overheat and will not be able to generate a steady power supply.

The internal boost converter is practical on mobile setups/notebooks where no external power is available.

For reference: A testbox TB2 pulse generator uses \(30 \textrm{ mA}\), while a VSI+ preampilfier uses about \(36 \textrm{ mA}\).