VC4000DAQ Manual
35
1. Press the Tools key
2. Scroll
to
Setup
and press
ENTER / YES
3. Scroll down to
Sensors…
and press
ENTER / YES
4. Choose the sensor you want to record and press
ENTER /
YES
5. See Setup, Sensors on page 77 for details on each sensor
6. Press
CLEAR / NO
twice to get back to the READY screen
Or use
Profile
to change the setup in the VC4000 from your PC:
1. Start the Profile program
2. Connect the VC4000 to your computer
3. Turn on the VC4000
4. In Profile, Click on the VC4000 Setup icon (or Tools/VC4000
Setup)
5. Profile will connect and retrieve the VC4000 setup
6. Turn on the sensors using the tabs for each section
7. Click the “Send Setup” key
VC4000 Run Storage Memory
The VC4000 stores all braking runs to internal
flash memory
.
Eventually the memory will fill up or the number of files will exceed
65,535. When this happens you will have to clear memory. The
display will prompt you to clear memory after the error message
appears. You should clear run data memory
periodically
to ensure
data storage is successful. To clear memory, press the
CLEAR / NO
key from the “READY” screen and follow the prompts. Monitor and
acceleration runs can store to internal flash memory or use Data
Streaming.
Data Streaming sends the data directly to Profile without storing it in
flash memory first. It has a sample rate of 100Hz and can run for up
to 4 hours. Use Profile and click on the menu “Import/Data
Streaming” to use this feature. See Profile help or Profile manual for
more details.
The VC4000DAQ includes an SD flash memory card to store run
data onto. To transfer runs onto the SD flash memory card follow
these steps:
1. From the “READY” screen, press the Tools key.
2. Scroll
to
SD Card Options
and press
ENTER / YES
.
3. Select
Copy All Runs
and press
ENTER / YES
.
4. Press
CLEAR / NO
twice to get back to the READY screen.
Transit Use
VC4000DAQ Manual
36
All runs in the VC4000 memory will be copied onto the SD card. The
runs will remain in the VC4000 memory until you delete them.
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
POWER
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
