Operation; Test Conditions And Test Area; Set-Up In Vehicle; Changing The Units - Auto Test AUTOSTOP Micro Plus User Manual

3. OPERATION

3.1 Test Conditions and Test Area

The vehicle must be stationary (at a complete stop) prior to commencement of the test. Ideal
conditions are to test the vehicle at a location where no other or only few vehicles are present.
However, if it is necessary to use another area, such as a public road, only commence the test if
there is no danger of an accident. The test area should be a sealed, flat bitumen road. The
headwind should be less than 15km/h.
The test starts with the first movement of the vehicle, and concludes when the vehicle comes to a
stop. The vehicle must be held in a straight line throughout the test. Please be sure to follow the
brake test procedure detailed in the latest version of the relevant Inspection Manual when carrying
out a statutory test.

3.2 Set-Up in Vehicle

Attach the Micro Plus to the dashboard, front passenger seat, foot well or centre console so that
the screen is clearly visible and the buttons are accessible. The Micro Plus is self-aligning by
identifying its orientation during acceleration at the beginning of each test - it can be installed at
any angle facing any orientation, but MUST BE SECURE FOR THE ENTIRE DURATION OF THE
TEST as movement can cause wrong deceleration readings.

3.3 Changing the units

The resultant average deceleration and max deceleration can be viewed in different units like g,
2
m/s and %. The speed and stopping distance can be viewed in imperial and metric units. To
select the units, press ON/OFF button to power up the unit. The display will show "tst", press
'NEXT' until it displays "opt". There are two options "Acc" for selecting units for average and
maximum decelerations, and "Unt" for selecting imperial and metric units for speed and stopping
distance.
The average and max decelerations have three options as follows:
Display
"g"
"
S"
"PCT"
The speed and stopping distance in both units are shown as follows:
Unit
Speed
Stopping distance

3.4 Running the Test

Align the vehicle into the testing position; the vehicle needs to be stationary to start the test, and
should be conducted in a straight line. To commence the test, press the ON/OFF button on the
Micro Plus. The display will show "tst". Press 'YES' and the display should change to "go" for go.
Accelerate the vehicle to the desired test speed and firmly apply the brakes until the vehicle is
stationary. The braking duration must be within ten seconds for the Micro Plus to calculate the
AUTOSTOP™ Micro Plus User Manual Version 2.21
Units
g
m/s
% (where 0% = 0.00g, 100% = 1.00g)
Imperial ("IP")
Miles per hour (mph)
Feet (ft)
2
Metric ("
Kilometres per hour (km/h)
Meter (m)
t")
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