Using Min Max - Fluke 87 Series IV User Manual

Using MIN MAX

The MIN MAX mode stores minimum (MIN) and maximum
(MAX) input values. When the input goes below the stored
minimum value or above the stored maximum value, the
meter beeps and stores the new value. MIN MAX mode
also calculates an average (AVG) of all readings taken
since the mode was activated.
Press to enter the MIN MAX mode. The maximum
(MAX) reading is displayed first.
Each subsequent press of
minimum (MIN), average (AVG), and back to the
maximum reading.
In the MIN MAX mode, the secondary display continues to
show the present measurement value.
The time elapsed since the MIN MAX mode was entered
is shown in the bottom right corner of each type of display.
See Figure 2-7.
steps through the
To exit MIN MAX mode, press
turn the rotary switch to a different position. Also, MIN
MAX mode turns off automatically when a flashing
(low battery condition) occurs.
Minimum, maximum, and average values stored
in the MIN MAX mode are lost when the meter is
turned off.
The MIN MAX mode can be used to capture intermittent
readings, store maximum readings while you are away, or
store readings while you are operating the equipment
under test and cannot watch the meter. The average
reading is useful for smoothing out unstable inputs,
calculating power consumption, or estimating the percent
of time a circuit is active.
The MIN MAX mode is appropriate for storing signal
events that last 50 ms or longer in most measurement
functions. Signal events must be 500 ms or longer in the
following functions: continuity, conductance, capacitance,
temperature, Hz, duty cycle, and pulse width.
Getting Acquainted
Using MIN MAX
(CANCEL) or
Note
2
2-19