Instructions on how to use a Bowmonk portable brake meter.
Position the vehicle at the start of the test run and place your Bowmonk brake meter on the level section of the vehicle floor.
The Bowmonk brake meter is a scientific instrument, indisputable in it’s accuracy. It consists of a finely balanced pendulum free to respond to any changes in speed or angle, working through a quadrant gear train to rotate a needle round a dial. The dial is black with silver white graduations and having a linear length of 5 1/2 inches (114mm). To damp out vibrations the instrument is filled with special fluid not sensitive to changes in temperature. The dial is calibrated in percentage ‘G’ the accepted standard throughout the world for measuring acceleration and deceleration.
No maintenance is necessary, however, all brake meters must be sent to an approved certifier for an annual test and calibration as per New Zealand Land Transport Safety Authority regulations.