5
DYNertia3 Quick Start (Inertia- Chassis type)
A16mm diameter hole is required to mount the sensor. Do not over tighten the lock nuts or they will be damaged. A
small ‘blob’ of silicon sealant or similar is applied to the edge of the nuts to stop them loosening with vibration.
Tip-
After the ‘Linking’ process (discussed
later) the sensor operation can be checked
via the button “DYNertia3 Sensor Test”. The
indicator and an audible noise can be used
to confirm sensor operation during slow
rotation. The indicator lamp/noise triggers
for a short time as the magnet approaches
the sensor (only on approach).
KEY POINTS-
1.5
– 2mm gap. Safe magnet mounting, South Pole (marked with red paint) of magnet facing towards the
sensor!
DYNertia Control Unit Mounting
1)
Mount the sensor unit at the furthest distance
(
‘every inch counts’
!)
from the engine as possible. Route all cables
as far as possible away from the engine (and any electric motors such as cooling fans) and keep the controller and PC
at a distance. Coil any spare cable up neatly at the PC. Keep the sensors lead away from the USB lead or any other
wiring.
It’s best to route cables inside a protective metal tubing or keep separated from the engine by mounting behind the
earthed metal of the dyno frame or shields. Secure at the DYNertia control unit to prevent movement of the cables.
DYNertia3 software can even be operated by remote control if required (wireless keyboard or a PC
‘page turner’ as one
option), tests can be started and stopped and new files even created (names incremented).
2) Always
use resistive Spark plugs and suppressed Spark plug leads to prevent interference (at least during testing).
Tip-
A suppressed spark plug lead from a car can be put in series with the existing spark plug to reduce interference.
This additional spark lead is essential on many go-
kart engines as they have particularly ‘noisy’ ignition systems!
