VC4000 Manual
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All runs in the VC4000PC memory will be copied onto the SD card.
The runs will remain in the VC4000PC memory until you delete
them. A typical 1GB SD card will hold over 200,000 runs.
When testing the performance of a vehicles braking system, perform
the tests on a
flat and level
surface. An optional brake pedal
activation switch is available if required.
1. Drive to an area that is flat and level. Connect applicable
sensors and activation switch.
2. To power on, press the
POWE R
key and hold for 1 second
until the unit beeps.
3.
From the “READY” screen press the
2
Bra king
key with the
vehicle at a complete stop. The VC4000 will zero adjust the
accelerometers and applicable sensors, show the available
record time in seconds, display the run number being saved,
and then display:
4. Position the vehicle before the test area allowing enough
distance to accelerate to your desired target speed. (As an
example back up approximately 300 feet). A typical braking
test speed on dry pavement is 20 mph.
5. Press the
Auto Start
key. The VC4000 will display 'Auto-
Start-Ready' and the current G reading.
6. Accelerate the car to the desired initial braking speed. After
reaching the desired initial braking speed, hit the brakes
hard and fast, applying maximum brake pedal pressure until
the vehicle comes to a complete stop.
PUSH
AUTO START
Testing Brake Performance
