9
the speed is off a bit you need to check your own ‘timing’.
When the first sensor is tripped the display will go blank.
Once the second sensor is tripped you will see the scale speed
displayed on the unit.
25
This example shows that the train (or finger) was doing
25 Mph. The speed will remain in the display until the sensor
triggered again. If this test works you are ready to start
running trains!
It should also be noted that the sensor pair will be disabled for
about 2 seconds after the train has passed it before it will be
able to measure another train’s speed. This was done to avoid
false triggering as the spaces between cars in a train cross the
sensors.
Error messages
There are three error messages that can be displayed during
normal operation. If you get a display of Er.F it means that
the train was moving faster then 999 mph.
Er.F
The message Er.S indicates that the train was moving slower
then 1 mph.
Er.S
