FLUKE-87-5-EX Fluke Electronics, FLUKE-87-5-EX Datasheet - Page 42
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FLUKE-87-5-EX
Manufacturer Part Number
FLUKE-87-5-EX
Description
MULTIMETER INDUSTRIAL TRU RMS
Manufacturer
Fluke Electronics
Series
8xr
Type
Digital (DMM)r
Specifications of FLUKE-87-5-EX
Includes
Battery, Clips, Temperature Probe, Test Leads
Style
Handheld
Display Digits
4.5
Display Type
LCD, Bar Graph
Display Count
20000
Function
Voltage, Current, Resistance, Capacitance, Temperature, Frequency
Functions, Extra
Continuity, Diode Test
Features
Auto Off, Backlight, Clips, Hold, Min/Max/Ave
Ranging
Auto/Manual
Response
True RMS
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
2547226
Users Manual
MIN MAX Recording Mode
The MIN MAX mode records minimum and maximum
input values. When the inputs go below the recorded
minimum value or above the recorded maximum value,
the Meter beeps and records the new 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 mode can also
calculate an average of all readings taken since the MIN
MAX mode was activated. To use MIN MAX mode, refer
to the functions in Table 7.
Response time is the length of time an input must stay at
a new value to be recorded. A shorter response time
captures shorter events, but with decreased accuracy.
Changing the response time erases all recorded
readings. The Meter has 100 millisecond, and 250 s
(peak) response times. The 250 µs response time is
indicated by "p" on the display.
The 100 millisecond response time is best for recording
power supply surges, inrush currents, and finding
intermittent failures.
The true average value (AVG) displayed in the 100 ms
mode is the mathematical integral of all readings taken
since the start of recording (overloads are discarded).
The average reading is useful for smoothing out unstable
34
inputs, calculating power consumption, or estimating the
percentage of time a circuit is active.
Min Max records the signal extremes lasting longer than
100 ms.
Peak records the signal extremes lasting longer than 250
µs.
Smooth Feature (Power Up Option Only)
When the input signal changes rapidly, “smoothing”
provides a steadier reading on the display.
To use the smooth feature:
1.
2.
Hold down C while turning the Meter on. The
display will read “
The smooth icon (
of the display to let you know that smoothing is
active.
5___
g) will appear on the left side
” until C is released.