Megger DCM305E, User Manual

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Auto Hold Enable / Disable
In the AUTOHOLD mode, if the measured value remains within ±10 counts
over 10 measuring cycles the instrument will beep 3 times; the measured
value will be held on the display and “AUTOHOLD” will be displayed.
Subsequently if the measured value changes by ±10 counts, the instrument
will beep; “AUTOHOLD” will disappear and the instrument will revert to
displaying the new readings until the next AUTOHOLD conditions are met.
Note: When the AUTOHOLD activates, the displayed reading will be held for 3
seconds if the clamp jaws are removed from the conductor/s. During this time
the HOLD key may be pressed to hold the reading indefinitely.
Auto Backlight
The Auto backlight on the display activates automatically when the instrument
is used in very poor light locations