Autohold Mode; Min Max Avg Recording Mode - Fluke 1587 MDT Abridged User Manual

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1587 FC/1587/1577
Users Manual

AutoHold Mode

Warning
To prevent electrical shock, do not use the
Display AutoHold mode to determine if a
circuit is live. Unstable or noisy readings will
not be captured.
In the AutoHold mode, the Meter holds the reading on the
display until it detects a new stable reading. Then the
Meter beeps and displays the new reading.
•
Press  to activate AutoHold. Y shows on
the display.
•
Press  again or turn the rotary switch to resume
normal operation.

MIN MAX AVG Recording Mode

The MIN MAX AVG mode records minimum and maximum
input values. The Meter beeps and records a new value
when the inputs go below the recorded minimum value, or
above the recorded maximum value. This mode can be
used to capture intermittent readings, record maximum
readings while you are away or record readings while you
are operating the equipment under test and cannot watch
the Meter. MIN MAX AVG mode can also calculate an
average of all readings taken since the MIN MAX AVG
mode was activated.
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The Meter tracks the minimum, maximum, and average
values for each display which are updated 4 times per
second.
To use MIN MAX AVG recording:
•
Make sure the Meter is in the desired measurement
function and range. (Autoranging is disabled in the
MIN MAX AVG mode).
•
Press m to activate MIN MAX AVG mode.
M shows on the display.
•
Press m to step through the high (MAX), low (MIN),
average (AVG), and present readings.
•
To pause MIN MAX AVG recording without erasing
stored values, press . S shows on the
display.
•
To resume MIN MAX AVG recording, press 
again. S turns off.
•
To exit and erase stored readings, press m for one
second or turn the rotary switch.