RayTechAutomotive
SynchroKing 4 Mk2 - Instruction Manual
www.raytechautomotive.com
4 of 6
Rev 3
Aug 2022
selectable in 100 increments. A higher dampening factor will result in a more stable display but
reduced sensitivity and vice versa. The user should set the dampening factor such that a
satisfactory balance is struck between readability and sensitivity.
At startup the device will be set at the default dampening factor of 30.
The dampening factor can be adjusted in increments of 1 by pressing the '+' or '-' button
momentarily. The dampening factor can be increased or decreased in increments of 10 by
pressing and holding the '+' or '-' button respectively.
Once one of the buttons is pressed, the device will display 'dp' in the No.2 display and the current
dampening level in the No.3 display. After setting the desired dampening level and releasing the
button, the device will revert to normal operation after 1 second.
Calibration
At startup the SynchroKing 4S Mk2
will perform an automatic calibration, during which the
output signal of each sensor unit is baselined at zero. (Note that values below 20 are suppressed
thus not showing on the display). This function ensures that each of the four sensors are
referencing the same start value.
The device is also equipped with a manual calibration option. In normal operation it is not
necessary to execute a manual calibration. Only in the event that the previous (auto) calibration
was not successful, manual calibration is needed. Incorrect calibration occurs for instance when
the pressure on one or more channels was not atmospheric at the calibration.
The manual calibration function is provided in order not to initiate a reset of the dampening level
as is the case with turning the device off and on.
To execute a manual calibration, press both the '+' and '-' buttons at the same time. The No.2
display will show 'CAL'. The No.3 display will show a count down by adding a ' - ' to the display
every one second. Calibration is complete when the No.3 display goes blank. Releasing either
button before the cycle is complete will abort the calibration.
Ensure that at the time of calibration, all channels are at atmospheric pressure. Vacuum or
pressure being present at the time of calibration will result in incorrect measurements. It is
suggested to turn the engine of and have the throttle wide open when calibrating.
