Relative Mode - AD Instruments True RMS AD9929 Manual De Usuario

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When the meter is first turned on, it automatically goes into AutoRanging. This automatically selects the best range
for the measurements being made and is generally the best mode for most measurements. For measurement
situations requiring that a range be manually selected, perform the following:
1. Press the RANGE key. The "AUTO" display indicator will turn off.
2. Press the RANGE key to step through the available ranges until you select the range you want.
3. To exit the Manual Ranging mode and return to Autoranging, press EXIT
Note: Manual ranging does not apply for the Temperature functions.
MAX/MIN
1.
Press the MAX/MIN key to activate the MAX/MIN recording mode. The display icon "MAX" will appear. The
meterleft auxiliary displaywill display and hold the maximum reading and will update only when a new "max"
occurs.The display icon "MIN" will appear. The right auxiliary displaymeter will display and hold the minimum
reading and will update only when a new "min" occurs.
2.To exit MAX/MIN mode press EXIT

RELATIVE MODE

The relative measurement feature allows you to make measurements relative to a stored reference value. A
reference voltage, current, etc. can be stored and measurements made in comparison to that value. The displayed
value is the difference between the reference value and the measured value. Note: Relative mode does not
operate in the 4-20mA function.
1. Perform the measurement as described in the operating instructions.
2.
Press the REL button to store the reading in the display and the
"REL" indicator will appear on the display.
3.
Left auxiliary display display the margin of initial value and the current value.
Right auxiliary display display the initial reading. Main display the reading after REL TEST.
4. Press the EXIT button to exit the relative mode.
Display Backlight
Press the key to turn the backlight on. The backlight will automatically turn off after SET time. Press
the EXIT button to exit the backlight on mode.
HOLD
The hold function freezes the reading in the display. Press the HOLD key momentarily to activate or to exit the
HOLD function.
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Manual de usuario AD9929
AD Instruments
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