Feature Summary | Fluke 189 specification

Specifications

Feature Summary 7

Feature Summary

Feature

Dual Digital Displays

Analog Bar Graph

Backlight with 2 brightness levels

Fast Autorange

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

dBm, dBV

AutoHOLD

Continuity / Open test

	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 - instantly

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

Fast Bar Graph

Duty cycle / Pulse width

MIN MAX Mode

FAST MN MX with 24-hour time stamp

Closed-Case Calibration

Battery / Fuse Access Door

Hi-Impact Overmolded Case

51 segments for peaking and nulling

Measure signal on or off time 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 ∝ sec.

No internal adjustments needed

Battery or fuse replaceable without voiding calibration

Protective holster features

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Fluke 189 user manual Feature Summary

Contents

Model 187 Lifetime Limited Warranty Table of Contents Making Measurements Model 187 Iii Specifications Maintenance List of Tables Model 187 List of Figures Viii Safety Information Before You StartContacting Fluke WWarning Safety Information Before You Start International Electrical Symbols Symbols Getting Acquainted IntroductionTurning the Meter On Automatic Power Off Battery Considerations Automatic Backlight Off Low Battery Indication Rotary Switch Rotary Switch Pushbuttons Pushbuttons Blue Key Function Rotary Switch Selections Position Rotary Switch Function View MEM Rotary Switch Positions Button Pushbuttons Yellow Button Description Function Yellow Button Function Pushbuttons Button Description Selecting the Range Understanding the DisplayPrimary Display Secondary Display Bar Graph Display Features Number Feature Display Features Description 8.8.8 Display Features Number Display Features Description Number Feature FMS8888 HM8888 8.8 Display Features Number 51000 Input Terminals Using the Input Terminals Display Hold and AutoHOLD Using Display Hold Using MIN MAX Using AutoHOLD Model 187 Min Max Avg Using Fast MN MX Using Hold with MIN MAX or Fast MN MX Using Relative Mode REL Measuring Voltage Making Measurements AC Voltage Measurement Measuring AC Voltage DBm Display DB Measurements in AC Volts Functions Both AC and DC Voltage Measurements Measuring DC Voltage AC and DC Display AC over DC DC over AC Capacitors before measuring resistance Measuring Resistance OFF Automatically subtract this value Testing for Continuity Using Conductance for High Resistance Tests For in-circuit tests, turn circuit power off Conductance Measurement Measuring Capacitance Capacitance Measurement Testing Diodes Diode Test Measuring Temperature Shock, do not connect the thermocouples toElectrically live circuits Input Ranges Measuring Current Measuring Current Input Alert Feature Following are some tips for measuring current Measuring AC Current 11. AC Current Measurement Measuring DC Current Current through one component Total current to circuit 13. Functions Allowing Frequency Measurement Measuring Frequency 14. Hz Display Measuring Duty Cycle Measures Negative Pulse Measures Positive Pulse 16. Duty Cycle Display Measuring Pulse Width Start and Stop on Negative Slope Start and Stop on Positive Slope 18. Pulse Width Display Model 187 Logged Readings Memory Using Memory & Communications FeaturesTypes of Memory Saved Readings Memory Storing Saved Readings Starting LoggingStopping Logging To avoid electric shock, disconnect the test Viewing Memory Data MEM View Display Clearing Memory Using Communications 187 Model 187 Selecting Setup Options Changing the Default Settings Option Function Specific Setup SelectionsFactory Default Precondition Choices Common Setup Selections Adjusting the Temperature Offset Changing the Default Settings Setting the Power Off Timeout Selecting Display Resolution 3 1/2 or 4 1/2 Digits Setting the Line Main Frequency Setting the 24-Hour Clock Saving Setup Options Returning to Factory Defaults Maintenance Introduction General MaintenanceTesting the Fuses Replace F2 if Replace F1 if Displayed Replacing the Batteries Battery and Fuse Replacement Replacing the Fuses User-Replaceable PartsCase of Difficulty MP8 MP9 Safety and Compliances Specifications Physical Specifications Feature Summary Basic Specifications Detailed Accuracy Specifications KHz-100 kHz Accuracy Function45-1 kHz 20 kHz DC a 500.00 Ω Capacitance Diode Test MIN MAX AVG Burden Voltage A, mA, µA Frequency Counter Sensitivity Input Characteristics