Velleman SCR100 - Manual (Page 12)

Atlas SCR User Guide January 2008 – Rev 3
Page 12
Self Test Procedure
Each time the Atlas SCR is powered up, a self test procedure is performed. In
addition to a battery voltage test, the Atlas measures the performance of many
internal functions such as the voltage and current sources, amplifiers, analogue
to digital converters and test lead multiplexers. If any of these function
measurements fall outside tight performance limits, a message will be
displayed and the Atlas will switch off automatically.
If the problem was caused by a
temporary condition, such as applying
power to the test clips, then simply
restarting the Atlas may clear the
problem.
If a persistent problem does arise, it is likely that damage has been caused by
an external event such as excessive power being applied to the test clips or a
large static discharge taking place. If the problem persists, please contact us for
further advice, quoting the displayed fault code.
 If there is a low battery condition, the automatic self test
procedure may not be performed.
Error M6