Fluke 179 Instruction Manual: A Comprehensive Guide
This comprehensive guide details the Fluke 179’s operation, covering unboxing, safety, measurements, and troubleshooting – ensuring successful product utilization.
The Fluke 179 is a professional-grade, battery-powered True-RMS multimeter designed for electrical troubleshooting and precision measurement. This robust instrument features a 6000-count, 3 3/4-digit display alongside a dynamic bar graph, providing clear and concise readings. It’s built for reliability and accuracy, catering to electricians, HVAC technicians, and other field service professionals.
This manual serves as a complete resource, guiding users through every aspect of the Fluke 179, from initial setup and basic functions to advanced measurements and safety precautions. Understanding its capabilities and adhering to the provided instructions will maximize performance and ensure safe operation. The 179 offers a lifetime warranty against defects in material and workmanship.
Key Features and Specifications
The Fluke 179 boasts True-RMS accuracy for AC voltage and current measurements, ensuring reliable readings even with complex waveforms. It offers a 6000-count display resolution and an analog bar graph for visual representation of signal changes. Key features include auto and manual ranging, diode test, continuity buzzer, frequency and capacitance measurement, and temperature readings with an optional probe.
Specifications include: DC Voltage: 200mV to 1000V; AC Voltage: 200mV to 750V; DC Current: 200µA to 10A; AC Current: 200µA to 10A; Resistance: 200Ω to 40MΩ. Powered by a 9V battery, the 179 is designed for durability and long-lasting performance in demanding environments.
Getting Started with Your Fluke 179
Begin your journey with the Fluke 179 by familiarizing yourself with included accessories, battery installation, and understanding the display for optimal operation.
Unboxing and Included Accessories
Upon receiving your Fluke 179, carefully inspect the packaging for any signs of damage during transit. Once opened, verify the contents against the included list to ensure everything is present.
Typically, your Fluke 179 package should contain the digital multimeter itself, a set of test leads equipped with 4mm lantern tips for secure connections, and an installed 9V battery to power the device.
Furthermore, a 80BK Temperature Probe may be included, expanding the meter’s capabilities. Crucially, the package also includes the Fluke 179 User Manual, providing detailed instructions and safety information.
Retain all original packaging and documentation for potential warranty claims or future reference. If any items are missing or damaged, immediately contact Fluke customer support for assistance.
Battery Installation and Replacement
The Fluke 179 is powered by a standard 9V battery. Upon initial use, the battery is typically pre-installed. However, periodic replacement is necessary to maintain accurate measurements. To access the battery compartment, locate the battery cover on the rear of the multimeter.
Use a small screwdriver to carefully open the cover. Observe the battery’s polarity (+ and -) before removing the old battery. Insert a fresh 9V battery, ensuring correct alignment.
Proper battery installation is crucial for accurate readings. A low battery is indicated by a battery icon on the display. Replace the battery promptly when this icon appears to avoid measurement errors. Always dispose of used batteries responsibly, following local regulations.
Understanding the Display and Controls
The Fluke 179 features a 6000-count, 3 3/4-digit display, providing clear and precise readings. A prominent bar graph visually represents signal strength and trends. Key controls include a rotary dial for function selection, buttons for data hold, min/max recording, and range adjustment.
The RANGE button toggles between auto-ranging and manual ranging modes. The HOLD button freezes the current reading on the display. Understanding these controls is essential for efficient operation. The display also indicates units of measurement, battery status, and any active operating modes.
Familiarize yourself with the display symbols and control functions to maximize the multimeter’s capabilities.
Basic Measurement Functions
The Fluke 179 excels at fundamental measurements: voltage (AC/DC), current (AC/DC), resistance, and continuity testing – providing reliable results for everyday tasks.
Voltage Measurement (AC/DC)
Measuring voltage with the Fluke 179 is straightforward. Select the voltage function using the rotary dial, choosing AC or DC voltage as appropriate. Insert the test leads; black to COM and red to the voltage measurement point.
The 179 is a True-RMS multimeter, ensuring accurate AC voltage readings even with complex waveforms. For DC voltage, observe the polarity indicated on the display. Auto-ranging simplifies the process, automatically selecting the appropriate range. Alternatively, manual ranging allows precise control using the RANGE button.
Always adhere to safety precautions when measuring voltage, especially in high-voltage environments. Refer to the safety section of this manual for detailed guidelines. Ensure proper fuse installation for accurate and safe operation.
Current Measurement (AC/DC)
Measuring current requires careful attention to safety and proper lead placement. Select the current function (AC or DC) on the rotary dial. Crucially, move the red test lead to the current measurement input. Remember, the Fluke 179 has separate inputs for current measurements.
For accurate readings, break the circuit to insert the multimeter in series with the load. The 179’s True-RMS capability ensures precise AC current measurements. Auto-ranging simplifies the process, but manual ranging offers greater control. Always check fuse integrity before measuring current.
Caution: Excessive current can damage the meter and leads. Never exceed the specified current limits. Refer to the safety section for detailed precautions.
Resistance Measurement
Measuring resistance with the Fluke 179 is straightforward, but requires the circuit to be de-energized. Select the resistance (Ω) function on the rotary dial. Ensure the component being tested is isolated – power off and disconnect from any circuit. Connect the test leads to the component; polarity doesn’t matter for resistance.
The 179 offers both auto-ranging and manual ranging for resistance measurements. Auto-ranging automatically selects the appropriate range, while manual ranging allows for precise control. High resistance values may exhibit instability; ensure good lead contact.
Continuity Testing
Continuity testing verifies electrical connection between two points. Select the continuity function (often indicated by a diode symbol or audible beep). Connect the test leads to the points you wish to test. If a complete circuit exists – low resistance – the Fluke 179 will emit an audible tone and display a low resistance value.
This function is ideal for checking fuses, wires, and switch contacts. A lack of a beep indicates an open circuit or high resistance. Remember to de-energize the circuit before testing continuity. The 179’s continuity test typically has a threshold around 30-50 ohms.
Caution: Do not use continuity testing on live circuits; it’s designed for de-energized paths only.
Advanced Measurement Functions
Explore beyond basics with diode tests, frequency measurements, capacitance checks, and temperature readings (using a compatible probe) on your Fluke 179.
Diode Test
The diode test function on the Fluke 179 is utilized to determine the forward voltage drop of a diode or to check for shorted or open connections within a semiconductor device. To initiate the test, select the diode test mode using the rotary dial. Connect the test leads across the diode; a forward-biased diode will typically display a voltage drop between 0.5V and 0.8V.
A reading of ‘OL’ (Overload) in either direction indicates an open circuit, while a reading close to 0V in both directions suggests a shorted diode. Remember to disconnect power from the circuit before testing diodes in-circuit to avoid damaging the meter or the circuit itself. This function is invaluable for troubleshooting electronic components and verifying their functionality.
Frequency Measurement
The Fluke 179’s frequency measurement function allows you to determine the number of cycles per second (Hertz) of an AC signal. Select the frequency measurement mode using the rotary dial. Connect the test leads to the circuit under test, ensuring proper polarity if applicable. The display will show the frequency of the input signal.
The meter can measure frequencies across a wide range, typically from a few Hertz to several megahertz. Accurate frequency measurements depend on a clean input signal; noise or distortion can affect the reading. This function is essential for analyzing AC circuits, identifying signal sources, and troubleshooting electronic equipment.
Capacitance Measurement
The Fluke 179’s capacitance measurement function determines the ability of a component to store an electrical charge, measured in Farads. Select the capacitance mode using the rotary dial. Disconnect the capacitor from any circuit before testing to avoid inaccurate readings. Connect the test leads to the capacitor’s terminals; polarity generally doesn’t matter for non-polarized capacitors.
The display will show the capacitance value. The meter supports a wide range of capacitance values, from picofarads to microfarads. Ensure the capacitor is discharged before measurement. This function is crucial for verifying capacitor health, identifying component failures, and characterizing circuits. Accurate readings require proper lead connection and a discharged component.
Temperature Measurement (with Probe)
The Fluke 179, when paired with an appropriate temperature probe (like the 80BK), accurately measures temperature in Celsius or Fahrenheit. Connect the probe to the meter’s input jack. Select the temperature measurement mode via the rotary dial. Ensure the probe tip makes firm contact with the surface being measured for an accurate reading.
The display will show the temperature value, along with the selected unit (°C or °F). Different probe types are available for various applications, including air, surface, and immersion measurements. Proper probe selection is vital for reliable results. Be mindful of the probe’s temperature range and limitations.
Operating Modes and Settings
The Fluke 179 offers versatile modes like auto-ranging, data hold, and min/max recording, enhancing measurement flexibility and simplifying complex troubleshooting tasks.
Auto-Ranging vs. Manual Ranging
The Fluke 179 provides both auto-ranging and manual ranging options, catering to diverse user preferences and measurement scenarios. Auto-ranging automatically selects the optimal measurement range, simplifying operation for general use and quick assessments. This feature eliminates the need for manual adjustments, ensuring convenience and reducing potential errors.
Conversely, manual ranging allows users to precisely define the measurement range, offering greater control and potentially improved accuracy in specific applications. To increase the range in manual mode, utilize the RANGE button; the highest range is automatically selected upon reaching its limit. Selecting manual range is achieved by pressing the RANGE button, displaying “Manual Range” on the screen. Understanding when to employ each mode is crucial for maximizing the Fluke 179’s capabilities.
Data Hold Function
The Data Hold function on the Fluke 179 is a valuable tool for capturing and preserving a measurement reading, particularly in situations where accessing the display is difficult or when readings fluctuate. Activating Data Hold freezes the current displayed value, allowing for convenient recording or further analysis without interruption.
To engage this feature, simply press the HOLD button. A “HOLD” icon will appear on the display, indicating that the current reading is being held. While in Data Hold mode, subsequent measurements will not affect the displayed value. Pressing the HOLD button again cancels the function, returning the meter to its normal measurement mode. This function is essential for remote measurements or when dealing with unstable signals.
Min/Max Recording
The Min/Max recording function on the Fluke 179 automatically captures the minimum and maximum values encountered during a measurement period; This is incredibly useful for identifying transient events, signal variations, or intermittent faults that might be missed with a single reading. To activate this mode, press the MIN/MAX button.
The display will then show the minimum value first, indicated by a “MIN” icon. Pressing the MIN/MAX button again cycles to the maximum value, displaying a “MAX” icon. A final press returns the meter to its normal reading mode. This feature allows for a comprehensive understanding of measurement fluctuations over time, aiding in accurate diagnostics and analysis.
Safety Information and Precautions
Always adhere to general safety guidelines, understand CAT ratings, and follow proper fuse replacement procedures to ensure safe and reliable operation of your Fluke 179.
General Safety Guidelines
To ensure your safety when using the Fluke 179, always read and understand this manual before operation. Use caution when working with voltages above 30V, as shock hazard exists. Never exceed the multimeter’s category ratings. Inspect test leads for damage before each use, replacing any worn or cracked leads immediately.
Disconnect circuits and components before measuring resistance or testing for continuity. Avoid exposing the instrument to extreme temperatures or humidity. Do not operate the meter in explosive atmospheres. When working with live circuits, keep hands behind the probe guard. Always use appropriate personal protective equipment, including safety glasses. This instrument is intended for indoor use only.
Regularly inspect the battery compartment for corrosion. Disconnect test leads when not in use. Remember, safety is paramount when working with electrical measurements.
Fuse Replacement Procedures
Before replacing fuses on your Fluke 179, disconnect test leads and power off the instrument. Locate the fuse compartment on the rear panel. Use a Phillips head screwdriver to remove the compartment cover. Carefully inspect the blown fuse; never replace with a different type or rating.
The Fluke 179 utilizes specific fast-blow fuses for protection. Replace only with identical fuses – consult the manual for correct specifications. Ensure the new fuse is fully seated within the compartment. Reattach the fuse compartment cover securely. Improper fuse replacement can compromise safety and damage the instrument.
If repeated fuse failures occur, discontinue use and contact Fluke service for assistance. Do not attempt to bypass or bridge the fuse. Always prioritize safety during this procedure.
CAT Rating Explained
The Fluke 179 features a CAT III 600V safety rating, crucial for understanding its operational limits. CAT (Category) ratings define the instrument’s ability to withstand transient overvoltages. CAT III is suitable for measurements in building installations, like switchboards and distribution panels.
Higher CAT ratings (CAT IV) are needed for primary electrical distribution. Using a meter beyond its CAT rating can pose a severe safety risk. Always verify the measurement environment’s CAT level before use. The 600V rating indicates the maximum voltage the meter can safely measure.
Adhering to CAT ratings ensures operator safety and prevents instrument damage. Ignoring these guidelines can lead to electric shock or equipment failure.
Troubleshooting Common Issues
Addressing display, accuracy, and battery problems is covered, alongside fuse checks, ensuring quick resolution of typical Fluke 179 operational challenges.
Display Problems
If the display is blank, first verify the battery is correctly installed and has sufficient charge. A low battery is a frequent cause of display issues. Should the display appear dim, try increasing the contrast setting, if available, or replacing the battery.
For erratic readings or segments missing, gently clean the display with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners. If the problem persists, it could indicate an internal fault requiring professional service.
Check for blown fuses, as a faulty fuse can sometimes manifest as display anomalies. Refer to the ‘Fuse Replacement Procedures’ section for detailed instructions. If the display shows unusual characters or is completely unreadable after a fuse replacement, contact Fluke support for assistance.
Measurement Accuracy Concerns
If experiencing inaccurate readings, ensure the test leads are securely connected to both the meter and the circuit under test. Poor connections are a common source of error. Verify the selected measurement range is appropriate for the value being measured; auto-ranging may not always be optimal.
Consider environmental factors like temperature and humidity, as these can influence accuracy. The Fluke 179 has specified operating conditions; exceeding these may affect results. Regularly check the calibration of the meter, especially for critical applications.
Confirm the correct input terminals are used for the measurement type. Incorrect terminal selection will yield inaccurate data. If issues persist, consult the ‘Troubleshooting’ section or contact Fluke for calibration or repair services.
Battery Issues
Low battery indication on the display signals the need for replacement. Use only a 9V battery, ensuring correct polarity during installation. A weak battery can cause inaccurate readings or erratic behavior, so replace it promptly. If the meter fails to power on despite a new battery, check the battery contacts for corrosion or damage.
Avoid mixing old and new batteries, or different battery types. This can lead to leakage and potential damage to the instrument. Prolonged storage without battery removal may cause corrosion. Regularly inspect the battery compartment for any signs of leakage or corrosion.
Battery life varies depending on usage and operating conditions. Frequent use of the backlight will reduce battery life.
Maintenance and Care
Regular cleaning with a damp cloth and proper storage are vital for maintaining the Fluke 179’s accuracy and longevity, ensuring reliable performance.
Cleaning the Instrument
To ensure optimal performance and longevity of your Fluke 179, regular cleaning is essential. Before any cleaning procedure, always disconnect the test leads and any other accessories from the multimeter. Use a soft, damp cloth – preferably with mild soap and water – to gently wipe the exterior surfaces of the instrument.
Avoid using abrasive cleaners, solvents, or strong detergents, as these can damage the casing and potentially affect the internal components. Be particularly careful not to allow any moisture to enter the battery compartment or any other openings. After cleaning, ensure the instrument is completely dry before reconnecting any accessories or using it for measurements.
For stubborn dirt or grime, a slightly dampened cotton swab can be used to carefully clean around buttons and display areas. Regular cleaning will help maintain the instrument’s appearance and prevent the buildup of contaminants that could affect its accuracy.
Storage Recommendations
Proper storage is crucial for maintaining the accuracy and extending the lifespan of your Fluke 179 digital multimeter. When not in use, store the instrument in a clean, dry environment, protected from extreme temperatures, humidity, and direct sunlight. Avoid storing it in areas where it may be exposed to dust, corrosive fumes, or vibrations.
It’s recommended to remove the batteries if the multimeter will be stored for an extended period to prevent potential leakage and corrosion. Store the test leads separately, ensuring they are not bent or damaged. Consider using the original packaging or a protective case for added security during storage and transportation.
Regularly inspect the instrument before and after storage to ensure no damage has occurred. Following these storage recommendations will help ensure your Fluke 179 remains in optimal working condition for years to come.
Service Information and Contact Details
For comprehensive support and service regarding your Fluke 179, several avenues are available; Refer to the user manual’s earlier sections for initial troubleshooting steps. If issues persist, contacting Fluke directly is recommended. Fluke provides regional telephone numbers for assistance; consult their official website for the most up-to-date contact information.
Warranty information is detailed within the documentation accompanying your instrument, outlining coverage for defects in materials and workmanship. For repairs or calibration services, Fluke offers authorized service centers globally. Locate the nearest authorized center through the Fluke website.
Always have your model number and serial number readily available when contacting Fluke or an authorized service provider to expedite the support process. Detailed service manuals are generally available to qualified technicians only.