Using Fast Mn Mx - Fluke 187 User Manual

Getting Acquainted
2

Using FAST MN MX

Using FAST MN MX
FAST MN MX can capture transient signal events as short
as 250 µs, but with decreased accuracy; only 3-1/2 display
digits are allowed.
Activate FAST MN MX by pressing . As with
regular MIN MAX, you can then press to cycle
through maximum, minimum, and average primary
displays. The meter beeps for any new minimum or
maximum value. Exit FAST MN MX by pressing
(CANCEL) or by turning the rotary switch.
A low battery condition (flashing ) disables FAST MN
MX.
In ac measurement functions, MAX and MIN values are
peak values, AVG is the rms value. This provides the
necessary information in one display for calculation of
Crest Factor (peak/rms).
Due to longer required response times, you cannot use
FAST MN MX in the following functions: ohms, diode test,
conductance, continuity, capacitance, temperature, ac
over dc, ac+dc, Hz, duty cycle, and pulse width.
tc033f.eps
Figure 2-7. Min Max Avg
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