Fluke 116 True-rms Multimeter

Quick Reference Guide

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Safety Information: This device is rated for CAT III environments up to 600 V.

Understanding Your Fluke 116 Multimeter

The Fluke 116 is a true-rms multimeter designed for professional electrical testing. This guide provides a quick overview of its common measurement functions and how to use them.

Key Features:

True-rms measurements for accurate readings on non-linear signals.
Auto-V/LoZ function for automatic voltage selection and low impedance voltage measurements.
Built-in thermometer.
Capacitance and frequency measurements.
Compact design with user-friendly interface.

Basic Setup:

Connect the black test lead to the COM (common) terminal.
Connect the red test lead to the appropriate input terminal based on the measurement (e.g., V, Ω, mV, A, µA).
Turn the rotary dial to the desired measurement function.
Press the RANGE button if manual ranging is preferred over auto-ranging.
Use the HOLD button to freeze the current reading.
Use the MIN MAX button to view minimum and maximum recorded values.

Measurement Functions and Usage

AC Voltage (V ac)

Measures alternating current voltage.

Dial Setting: Rotate the dial to the V~ (AC Voltage) position.
Probe Connection: Connect the black lead to COM and the red lead to the V terminal.
Example Reading: 123.9 V AC.

DC Voltage (V dc)

Measures direct current voltage.

Dial Setting: Rotate the dial to the V- (DC Voltage) position.
Probe Connection: Connect the black lead to COM and the red lead to the V terminal.
Example Reading: 120.1 V DC.

AC Millivolts (mV ac)

Measures low-level alternating current voltage.

Dial Setting: Rotate the dial to the mV~ (AC Millivolts) position.
Probe Connection: Connect the black lead to COM and the red lead to the mV terminal.
Example Reading: 12.01 mV AC.

DC Millivolts (mV dc)

Measures low-level direct current voltage.

Dial Setting: Rotate the dial to the mV- (DC Millivolts) position.
Probe Connection: Connect the black lead to COM and the red lead to the mV terminal.
Example Reading: 32.3 mV DC.

Frequency (Hz)

Measures the frequency of an AC signal.

Dial Setting: Rotate the dial to the Hz position.
Probe Connection: Connect the black lead to COM and the red lead to the V terminal.
Note: This function is often used in conjunction with voltage measurements.

AC Voltage and Frequency (V ac Hz)

Measures both AC voltage and its frequency simultaneously.

Dial Setting: Rotate the dial to the V~ Hz position.
Probe Connection: Connect the black lead to COM and the red lead to the V terminal.
Example Reading: 49.98 Hz (associated with an AC voltage).

Resistance (Ω)

Measures electrical resistance in ohms.

Dial Setting: Rotate the dial to the Ω (Ohms) position.
Probe Connection: Connect the black lead to COM and the red lead to the Ω terminal.
Example Reading: 2.000 kΩ (2000 Ohms).

AUTO-V LoZ

Automatically detects AC or DC voltage and measures with low impedance to reduce ghost voltages.

Dial Setting: Rotate the dial to the AUTO-V LoZ position.
Probe Connection: Connect the black lead to COM and the red lead to the V terminal.
Example Reading: 25.01 kΩ (This reading appears to be a resistance measurement taken in LoZ mode, which might be a specific application or display artifact in the QRG. Typically, LoZ is for voltage). The diagram shows connection to a power source.

DC Current (A dc)

Measures direct current in amperes.

Dial Setting: Rotate the dial to the A- (DC Amperes) position.
Probe Connection: Connect the black lead to COM and the red lead to the A terminal.
Important: Ensure correct probe placement for current measurements. Incorrect placement (e.g., using the V/Ω jack) can damage the meter or circuit.
Example Reading: -0.60 A DC.

Continuity Test

Checks for a complete circuit path (low resistance).

Dial Setting: Rotate the dial to the ))) (Continuity) position.
Probe Connection: Connect the black lead to COM and the red lead to the Ω terminal.
Indication: The meter will beep if continuity is detected (resistance is very low). An "OL" reading indicates no continuity or overload.
Example: A successful continuity test.

Capacitance (µF)

Measures capacitance in microfarads.

Dial Setting: Rotate the dial to the µF (Microfarads) position.
Probe Connection: Connect the black lead to COM and the red lead to the µF terminal.
Example Reading: 27.2 µF.

Temperature (°C/°F)

Measures temperature using a compatible temperature probe (e.g., Fluke 80BK Type K thermocouple).

Dial Setting: Rotate the dial to the °C/°F position.
Probe Connection: Connect the black lead to COM and the red lead to the V terminal. Connect the temperature probe to the appropriate jacks (often using the COM and V terminals as reference).
Example Reading: 27.2 °C.

Diode Test

Tests the forward voltage drop of a diode.

Dial Setting: Rotate the dial to the diode symbol (often near Ω).
Probe Connection: Connect the black lead to COM and the red lead to the V terminal.
Example Reading: 0.000 V DC (indicative of a diode reading).

Microamps (µA)

Measures very low currents in microamperes.

Dial Setting: Rotate the dial to the µA (Microamps) position.
Probe Connection: Connect the black lead to COM and the red lead to the µA terminal.
Example Reading: 27.0 µA.

AC Current (A ac)

Measures alternating current in amperes.

Dial Setting: Rotate the dial to the A~ (AC Amperes) position.
Probe Connection: Connect the black lead to COM and the red lead to the A terminal.
Example Reading: 25.3 A.

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