Page 6
3.5 Additional functions
3.5.1 Minimum and Maximum functions
The TA300 holds the maximum and minimum values of the measurement on the display.
• The maximum and minimum values are reset upon turning the TA300 power on,
or by momentarily pressing the
(
Power On/Off and Reset
) button.
• The maximum and minimum values will be shown with the last digit rounded to 0.
3.5.2 Sensitivity Adjust function
The TA300 allows the user to adjust the level of signal sensitivity it can detect, in order to
match a wide variety of fuel pressures and fuel lines characteristics.
To use the Sensitivity Adjust function:
1- Turn the instrument on.
2- To perform adjustments of the signal sensitivity while performing actual measurements,
follow the procedure as described in ‘3.4 Measurement procedures’.
4- The
fi
rst time the ‘
Sensitivity Increase’
or the
‘Sensitivity Decrease’
button is pressed,
the display will show the sensitivity setting (see Fig. 4), and each time the button is
pressed again it will increase or decrease the signal sensitivity. A few seconds after
the button is released the display will return to show maximum and minimum readings.
Notes:
• Adjusting the signal sensitivity of the TA300 while performing RPM measurements,
provides quick feedback on how this setting affects the response of the TA300 in any
given situation.
• Signal sensitivity can be adjusted between 1 and 10. The factory calibration val-
ue is 5.
• The lower the value of the sensitivity setting the bigger the signal input needs to be for
detection by the TA300, and converserly higher sensitivity settings can detect smaller
signals input.
• The values set by using the Sensitivity Adjust function are stored in internal memory,
and will be retained even if the instrument is powered off, the battery is depleted or
removed.
Cycles
%
Sensitivity
Threshold
Fig. 4 - Example of display when in Sensitivity or Trigger Level Adjust mode
