Tests: Noise rejection mode (DLRO2X)www.megger.comDLRO2 and DLRO2X394. 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.
