Simret 4000 Instructions, Issue 10, Jan 2011
© 1994-2011, Turnkey Instruments Ltd. Page 5 of 17
suspension to stop bouncing (confirm by looking at graph). The slope is measured as the blue
arming light goes out.
If the
Auto-Align
feature is selected, the instrument does not have to be accurately aligned with the
direction of travel. It will sense which direction the vehicle first accelerates for the test (to 5 kph)
and use that as the reference direction. It is important the initial direction coincides with that when
the brakes are applied.
Note that if you’re measuring
brake effort
with
auto-align
, the instrument will try to force you to
confirm the ground slope at the end of the test. It has to do this because it doesn’t know the proper
direction of the slope until after the test. You can override this by selecting NO for slope at stop
during the arming menu, in which case the instrument will assume it is positioned in the vehicle
exactly parallel to the ground.
Over the years Turnkey has produced many documents about brake testing, please contact our
Technical Support Department for further information.
simret.eu
0800 195 8887
“
Guidance on brake testing for rubber-tyre vehicles operating in quarries, open cast coal sites and
mines
” (published in May 2007 by EPIC in conjunction with OPERC and the UK Health and Safety
Executive, ISBN 978 0 947974 62 6).
