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10 EX540 V1.0 2/09
% 4 – 20mA MEASUREMENTS
1. Set up and connect as described for DC mA measurements.
2. Set the rotary function switch to the 4-20mA% position.
3. The meter will display loop current as a % with 0mA=-25%, 4mA=0%, 20mA=100%,
and 24mA=125%.
AUTORANGING/MANUAL RANGE SELECTION
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.
1. Perform the measurement as described in the operating instructions.
2. Press the REL button to store the reading in the display and the "▲" indicator will
appear on the display.
3. The Right auxiliary display displays the initial reading (the stored value)
4. The Left auxiliary display displays the actual currently measured value.
5. Main display displays the Relative value (currently measured value minus the stored
value).