Feature summary – Fluke 189 User Manual

Page 87

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Specifications

Feature Summary

7

7-3

Feature Summary

Feature

Description

Dual Digital Displays

Analog Bar Graph

Primary: 50,000

counts

Secondary: 5,000 count
Bar graph:

51 segments, updates 40 times/second

Backlight with 2 brightness levels

Bright white backlight for clear readings in poorly lighted areas

Fast Autorange

Meter automatically selects best range - instantly

AC+DC true rms, ac rms specified to 100 kHz

Choices for AC only, AC and DC dual display, or AC+DC readings

dBm, dBV

User selectable impedance references for dBm

AutoHOLD

Holds readings on display

Continuity / Open test

Beeper sounds for resistance readings below threshold, or to
indicate a momentary open circuit

Fast Bar Graph

51 segments for peaking and nulling

Duty cycle / Pulse width

Measure signal on or off time in % or milliseconds

MIN MAX Mode

FAST MN MX with 24-hour time stamp

Record maximum, minimum, and average values.
24-hour clock for MAX or MIN, elapsed time for AVG.

FAST MN MX captures peaks to 250

µ

sec.

Closed-Case Calibration

No internal adjustments needed

Battery / Fuse Access Door

Battery or fuse replaceable without voiding calibration

Hi-Impact Overmolded Case

Protective holster features

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