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Appendix B – Frequently Asked Questions
What happens if I drop the VWnote unit?
The VWnote has been subjected to a drop test from a one metre
height onto a concrete surface. The VWnote is supplied with a wrist
strap so you can keep it attached to your wrist when there is a drop
risk. Please make use of it to avoid drop damage.
What do I do if my reading is unstable?
Answer 1:
It may be that you have too many digits after the decimal
point when you display the reading. The default setting is one digit.
You may need to adjust the Display Resolution (DISPL. RESOL).
Answer 2:
When you encounter unstable readings, you should take
another reading. If the problem persists, you should re-try using a
narrower sweep frequency range.
Why am I getting a display of “No VW sensor?” or “No
Therm Sen.?”?
This means no VW sensor or no thermistor sensor is connected, or the
sensor or the signal cable is faulty. Check the sensor lead is properly
connected and then check the signal cable and the sensors.
Will VWnote work at very low or very high temperatures?
The VWnote was tested and working after it had been in a
temperature chamber for an hour at -10°C. At temperatures lower
than -10°C, the LCD screen may become unreadable. The same test
was conducted at +50°C and the VWnote functioned normally.
What sweep frequency range should I use to read my
VW sensors?
In most cases, the default sweep frequency range (1400-3500 Hz)
works well. Optionally, you can customise the sweep frequency to
any range between 450 Hz and 6000 Hz, such as 450-1250 Hz or
1200-2800 Hz.
What unit is Hz
2
/1K?
Due to limited display space on the LCD screen, Hz
2
/1000 is displayed
as Hz
2
/1K.
Why is my engineering unit displayed as ‘blank’?
Before you can set up sensor configuration with proper engineering
unit names in the VWnote, the engineering unit will be displayed as
‘
blank
’, alerting you that it is not yet set.
Summary of Contents for RO-1 VW Note
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