Tests: Noise rejection mode (DLRO2X)
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DLRO2 and DLRO2X
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4. As the Confidence Meter™ starts to calculate and average
out the measurements the displayed value will become
more stable and the markers will start to move inwards
as the confidence percentage increases. The markers
also change colour as they move inwards, starting at red
and changing to yellow and then green as confidence
increases. In cases where noise levels are high or varying
the pointers may move outwards and inwards as
confidence fluctuates. .
5. When the test stops the instrument will enter the
discharge phase.
WARNING : Do not disconnect test leads until discharge
is completed.
During the discharge phase, the buttons and rotary switch
will be inactive. While discharging is still in progress a
warning symbol (
F
) will flash on the left of the screen and
an audible warning buzzer will sound. Do not remove the test
leads until discharge is complete and the warning disappears.
6. The Confidence Meter™ will read 100%. The test leads
can be disconnected and the results can be saved by
clicking the SAVE ( ) button.
When confidence reaches 100% the measurement will stop
and the instrument will apply a discharge cycle, just in case
the test piece was inductive. When complete the final value
will be displayed and held, at this point the test limits, if
enabled, will be applied and a pass or fail indicated.
In the event that noise is very high testing may continue for
up to 5 minutes. If after this time 100% confidence has not
been reached, the instrument will stop the test and indicate
the level of confidence achieved and the best measurement
value it has been possible to obtain. Should the user wish to
stop the test earlier, the user can press the TEST button at any
time.
There may be occasions where the measured value is actually stable, but the Confidence Meter™ is still indicating
a lower level of confidence, such as 50% for example. In this situation the user may be happy with the stable value
and choose to stop the test by pressing the TEST button. This is usually because the Confidence Meter™ is trying to
resolve the measurement to a higher resolution than is currently displayed.
