Specifications; Accuracy; Feature Summary - Fluke 87 IV Series Service Manual

87 & 89 Series IV
Service Manual

Specifications

Accuracy

Accuracy is specified for a period of one year after calibration, at 18 °C to 28 °C (64 °F
to 82 °F), with relative humidity to 90 %. Accuracy specifications are given as:
± ( [ % of reading ] + [ number of least significant digits ] )
AC mV, AC V, AC µA, AC mA, and AC A specifications are ac-coupled, true rms and are
valid from 5 % of range to 100 % of range. AC crest factor can be up to 3.0 at full-scale, 6.0
at half-scale, except the 3000 mV and 1000 V ranges where it is 1.5 at full scale, 3.0 at half-
scale.

Feature Summary

Dual Digital Displays
Analog Bar Graph
Backlight with 2 brightness adjustment
Fast Autorange
AC+DC true rms, ac rms specified to 100
kHz
dBm, dBV
AutoHOLD
Continuity / Open test
Fast Bar Graph
Duty cycle / Pulse width
MIN MAX Mode
FAST MN MX with 24-hour time stamp
Close-Case Calibration
Battery / Fuse Access Door
Hi-Impact Overmolded Case
4
Feature Description
Primary: 50,000 counts
Secondary: 5,000 count
Bar graph: 51 segments, updates 40 times/second
Bright-white backlight for clear readings in poorly lighted
areas
Meter automatically selects best range
Choices for AC only, AC and DC dual display, or AC+DC
readings
User-selectable impedance references for dBm
Holds readings on display
Beeper sounds for resistance readings below threshold, or
to indicate a momentary open circuit
51 segments for peaking and nulling
Measure the time signal is on or off in % or milliseconds
Record maximum, minimum, and average values.
24-hour clock for MAX or MIN, elapsed time for AVG.
FAST MN MX captures peaks to 250 µsec.
No internal adjustments needed
Battery or fuse replaceable without voiding calibration
Protective holster features