Welcome to the Fluke 87 III User Manual‚ your comprehensive guide to mastering this advanced True RMS multimeter. Designed for versatility and reliability‚ this manual provides detailed instructions‚ safety precautions‚ and operational insights to ensure optimal use of the device.
1.1 Overview of the Fluke 87 III Multimeter
The Fluke 87 III is a high-performance‚ True RMS multimeter designed for precision and versatility in field‚ laboratory‚ and industrial environments. It offers advanced features like autoranging‚ data logging‚ and temperature measurement‚ making it ideal for professionals. With a rugged design and safety ratings up to CAT IV 600V‚ it ensures reliable operation in harsh conditions. This device is renowned for its accuracy and durability‚ making it a trusted tool for electrical and industrial applications. Its intuitive interface and comprehensive functionality cater to both novice and experienced users.
1.2 Importance of the User Manual
The user manual is essential for safe and effective use of the Fluke 87 III multimeter. It provides detailed instructions‚ safety guidelines‚ and troubleshooting tips‚ ensuring users understand the device’s capabilities and limitations. By following the manual‚ users can optimize performance‚ prevent damage‚ and comply with safety standards. It serves as a reference for advanced features‚ proper maintenance‚ and error resolution‚ making it an indispensable resource for both novice and experienced professionals working with this high-precision instrument.
1.3 Target Audience
The Fluke 87 III User Manual is designed for professionals‚ engineers‚ and technicians working in electrical‚ industrial‚ and laboratory settings. It serves as a critical resource for anyone requiring precise measurements‚ including those in maintenance‚ troubleshooting‚ and quality control roles. The manual is also beneficial for students and hobbyists seeking to understand advanced multimeter operations. Its detailed guidance ensures safe and effective use of the device across various applications‚ catering to both novice and experienced users.
Getting Started with the Fluke 87 III
This section guides you through initial setup‚ unpacking‚ and understanding the multimeter’s layout‚ ensuring a smooth start with your Fluke 87 III.
2.1 Unpacking and Inventory
Begin by carefully unpacking your Fluke 87 III multimeter and verifying all components against the packing list. Ensure the device‚ test leads‚ user manual‚ battery‚ and any additional accessories like a temperature probe are included. Inspect each item for damage. Familiarize yourself with the multimeter’s exterior‚ including the rotary switch‚ pushbuttons‚ and display. Store accessories safely to prevent loss. If any items are missing or damaged‚ contact Fluke support immediately for assistance.
2.2 Understanding the Multimeter Layout
Familiarize yourself with the Fluke 87 III’s layout to ensure efficient operation. The front panel features a rotary switch for function selection‚ pushbuttons for mode changes‚ and a high-resolution display showing measurements. The input terminals are located on the bottom‚ with clear labeling for voltage‚ current‚ and resistance. The battery compartment and additional ports are on the rear. Understanding this layout helps streamline measurements and reduces errors during use. Always refer to the labels to confirm correct probe connections.
2.3 Safety Precautions and Warnings
Always follow safety guidelines when using the Fluke 87 III. The meter meets CAT IV 600V and CAT III 1000V safety standards‚ protecting against impulses up to 8‚000V. Avoid measurements above 60V to prevent electrical shock. Ensure correct terminal usage‚ as misconnection can damage the device or pose risks. Use test leads with secure connections and avoid worn or damaged cables. Adhere to warnings and cautions in the manual to ensure safe operation and maintain the meter’s accuracy and reliability. Proper handling is crucial for both user safety and instrument longevity.
Familiarizing with the Controls
The Fluke 87 III features a rotary switch‚ pushbuttons‚ and a clear display. Understanding these controls is essential for precise measurements and effortless navigation of the device’s functions.
3.1 Rotary Switch Functions
The rotary switch is central to the Fluke 87 III’s operation‚ enabling quick selection of measurement modes such as voltage‚ current‚ resistance‚ capacitance‚ and frequency. It also accesses advanced features like MAX/MIN and REL modes. Each position is clearly labeled‚ ensuring intuitive navigation; Proper use of the switch is crucial for accurate measurements and optimal performance of the multimeter. Always refer to the manual for detailed guidance on switch functions and their applications. This ensures safe and effective operation.
3.2 Pushbutton Controls
The Fluke 87 III features intuitive pushbutton controls that enhance functionality. The MAX/MIN button captures maximum and minimum readings‚ while the REL button sets reference values for comparative measurements. The RANGE button toggles between autorange and manual range modes‚ optimizing measurement precision. Additionally‚ the HOLD button freezes readings on the display for easy recording. These controls are designed for efficient operation‚ ensuring quick access to advanced features. Always use them in conjunction with the rotary switch for accurate and safe measurements. Proper button operation is detailed in the manual.
3.4 Understanding the Display
The Fluke 87 III features a high-resolution 4000-count LCD display‚ providing clear and precise measurements. The display shows numerical values‚ units‚ and active measurement modes. Icons indicate settings like MAX/MIN‚ REL‚ and autorange. The display also alerts users to low battery levels and error conditions. Understanding the display ensures accurate readings and efficient operation. Refer to the manual for detailed explanations of all symbols and indicators. Proper interpretation of the display is crucial for maximizing the multimeter’s functionality and ensuring safe use.
Measurement Functions
The Fluke 87 III offers comprehensive measurement functions‚ including voltage‚ current‚ resistance‚ capacitance‚ and frequency. It ensures accurate True RMS measurements for both AC and DC signals.
4.1 Voltage Measurement (AC/DC)
The Fluke 87 III accurately measures both AC and DC voltage with high precision. It supports True RMS measurements‚ ensuring accurate readings in non-linear environments. The multimeter features a wide voltage range‚ from 0.1mV to 1000V‚ and is designed with safety in mind‚ meeting CAT IV 600V and CAT III 1000V standards. The clear LCD display provides precise voltage values‚ and the autoranging function simplifies measurements by automatically selecting the appropriate scale. This makes it ideal for field and laboratory use.
4.2 Current Measurement (AC/DC)
The Fluke 87 III measures both AC and DC current with high accuracy. It offers a range of 0.1mA to 10A for AC and DC currents‚ with True RMS capability for precise readings. The multimeter features autoranging‚ which simplifies measurements by automatically selecting the appropriate scale. Safety is prioritized with CAT III 1000V and CAT IV 600V ratings‚ protecting users from electrical hazards. The rugged design and high-contrast LCD display ensure reliable operation in challenging environments. This makes it ideal for industrial and field applications.
4.3 Resistance Measurement
The Fluke 87 III accurately measures resistance across a wide range‚ from 0.1Ω to 40MΩ. With True RMS technology‚ it ensures precise readings even in noisy environments. The multimeter features autoranging‚ simplifying the measurement process by automatically selecting the appropriate scale. A high-contrast 4000-count display provides clear visibility of results. Designed with safety in mind‚ the device meets CAT III 1000V and CAT IV 600V standards‚ protecting users during measurements. This makes it ideal for both field and laboratory applications‚ offering reliable and accurate resistance testing.
4.4 Capacitance Measurement
The Fluke 87 III offers precise capacitance measurement‚ ranging from 999.9nF to 9999μF‚ with a resolution of 0.1nF. Autoranging simplifies the process by automatically selecting the appropriate scale. The device provides accurate readings even in noisy environments‚ thanks to its True RMS technology. A high-contrast 4000-count display ensures clear visibility of measurements. Designed for versatility‚ this feature supports both field and laboratory applications‚ delivering reliable results with a focus on user convenience and safety.
4.5 Frequency Measurement
The Fluke 87 III provides accurate frequency measurement‚ ranging from 1Hz to 1MHz with 0.1Hz resolution. This feature is ideal for diagnosing electrical systems and motor drives. The multimeter’s True RMS technology ensures precise readings‚ even in noisy environments. A large‚ high-contrast 4000-count display delivers clear results. Designed for both field and laboratory use‚ the frequency measurement function supports troubleshooting with ease. Automatic scaling simplifies operation‚ while robust safety features protect the user and device during measurements. This capability enhances versatility for professionals.
Advanced Features of the Fluke 87 III
The Fluke 87 III offers precise frequency measurement‚ ranging from 1Hz to 1MHz with 0.1Hz resolution. This feature is ideal for diagnosing electrical systems and motor drives. The multimeter’s True RMS technology ensures accurate readings‚ even in noisy environments. A large‚ high-contrast 4000-count display delivers clear results. Designed for both field and laboratory use‚ the frequency measurement function supports troubleshooting with ease. Automatic scaling simplifies operation‚ while robust safety features protect the user and device during measurements. This capability enhances versatility for professionals.
5;1 True RMS Measurement
The Fluke 87 III’s True RMS measurement capability delivers accurate readings of AC voltage and current‚ even in noisy environments. This feature is essential for measuring non-sinusoidal waveforms‚ ensuring precise results. The multimeter’s advanced circuitry captures the true RMS value‚ providing reliable data for troubleshooting. With a 4000-count display‚ readings are clear and detailed. True RMS technology is vital for professionals working with complex electrical systems‚ offering superior accuracy compared to average-responding meters. This function enhances the multimeter’s versatility and reliability in demanding applications.
5.2 Autoranging and Manual Ranging
The Fluke 87 III offers both autoranging and manual ranging for flexible measurements. Autoranging automatically selects the optimal range‚ ensuring accurate readings without manual adjustments. For precise control‚ manual ranging allows users to select specific ranges for voltage‚ current‚ and resistance. This feature is particularly useful in applications where stability is crucial. The multimeter’s display clearly indicates the selected range‚ making it easy to confirm settings. Autoranging enhances efficiency‚ while manual ranging provides adaptability for specialized tasks‚ ensuring versatility in various measurement scenarios.
5.3 Data Logging and Storage
The Fluke 87 III supports data logging‚ enabling users to record and store measurement data for later analysis. This feature is ideal for monitoring trends or capturing transient events. The multimeter allows users to log data over time‚ with storage capabilities that ensure measurements are retained for review. The user manual provides detailed instructions on configuring data logging settings and accessing stored data. This functionality enhances the device’s utility in field and laboratory environments‚ offering convenience and efficiency for professionals.

Specialized Measurements
The Fluke 87 III offers specialized measurement capabilities for advanced applications. This section covers temperature‚ duty cycle‚ and diode testing‚ providing professionals with precise tools for complex tasks. The manual includes detailed instructions and safety guidelines‚ ensuring accurate and secure measurements.
6.1 Temperature Measurement
The Fluke 87 III allows precise temperature measurements using an optional temperature probe. This feature is ideal for field and laboratory use‚ enabling users to measure surface or air temperatures accurately. The multimeter supports various temperature ranges and provides clear readings on its display. Proper probe connection and setup are essential‚ as outlined in the manual. This function enhances the device’s versatility for professionals requiring thermal analysis in their work. Always follow safety guidelines when handling temperature probes to ensure accurate and secure measurements.
6.2 Duty Cycle Measurement
The Fluke 87 III enables accurate duty cycle measurements‚ essential for analyzing pulse-width modulation signals. Duty cycle‚ the ratio of pulse duration to its period‚ is crucial in motor control and switching circuits. The multimeter provides precise readings with a clear display‚ ensuring reliable diagnostics. Use the rotary switch to select the duty cycle function‚ and follow the manual’s setup guidelines for optimal results. This feature is ideal for technicians and engineers requiring detailed signal analysis in industrial and electronic applications.
6.3 Diode and Continuity Testing
The Fluke 87 III offers robust diode and continuity testing capabilities‚ essential for verifying circuit integrity. Use the rotary switch to select the diode function‚ which measures forward voltage drops and detects faulty diodes. Continuity testing provides an audible tone for low resistance connections‚ simplifying circuit troubleshooting. The multimeter ensures accurate results with its high-precision circuitry. This feature is invaluable for technicians diagnosing electrical systems‚ ensuring reliability and efficiency in field and lab environments.
Operating Modes
The Fluke 87 III features multiple operating modes for tailored measurements.
Normal Mode
provides standard readings‚ while
MAX/MIN Mode
captures peak values. The
REL Mode
compares measurements to a reference value‚ enhancing diagnostic precision.
7.1 Normal Mode
In Normal Mode‚ the Fluke 87 III operates in standard measurement settings‚ providing accurate readings for voltage‚ current‚ resistance‚ and other functions. This default mode is ideal for straightforward measurements‚ allowing users to quickly obtain results without additional configurations. It is suitable for both field and laboratory environments‚ ensuring reliable data acquisition. Refer to the manual for specific instructions on selecting and using Normal Mode for various measurement types.
7.2 MAX/MIN Mode
MAX/MIN Mode on the Fluke 87 III captures the maximum and minimum values of a measured signal over time‚ ideal for detecting fluctuations or peaks. To activate‚ press the MAX/MIN button until ‘MAX’ or ‘MIN’ appears on the display. This mode is useful for identifying signal variations without constant monitoring. It is particularly beneficial in field troubleshooting or lab environments where signal stability is critical. Refer to the manual for detailed instructions on utilizing this feature effectively in various measurement scenarios.
7.3 REL Mode
REL Mode on the Fluke 87 III allows users to measure relative values by setting a reference point. Press the REL button to store the current reading as the reference. Subsequent measurements display the difference from this stored value‚ enabling quick comparison or tracking changes. This mode is useful for identifying deviations from a baseline‚ such as monitoring drift or comparing signals. It simplifies troubleshooting by providing a relative perspective of measurements. Refer to the manual for step-by-step guidance on utilizing REL Mode effectively in various scenarios.
Troubleshooting and Maintenance
Troubleshoot issues by checking error codes‚ verifying connections‚ and ensuring proper calibration. Replace batteries as needed and perform routine inspections to maintain accuracy and safety.
8.1 Common Error Codes
The Fluke 87 III displays specific error codes to indicate issues. Codes like “E1” or “E2” often relate to measurement range or connection problems. Others‚ such as “BAT” or “LOW BATT‚” signal low battery levels. Refer to the manual for a full list of codes and solutions. Addressing these promptly ensures accurate measurements and prevents potential damage. Regular calibration and proper probe connections can help minimize errors‚ while battery replacement resolves power-related issues effectively; Always consult the troubleshooting guide for detailed corrective actions.
8.2 Battery Replacement
To replace the battery in your Fluke 87 III‚ turn off the multimeter and locate the battery compartment. Open it by sliding or unscrewing‚ depending on the model. Disconnect the old 9V battery and install a new alkaline battery‚ ensuring correct polarity. Close the compartment securely to maintain water resistance. Properly dispose of the old battery. For optimal performance‚ use a high-quality battery. If issues persist‚ consult the user manual for detailed instructions or contact Fluke support for assistance. Always follow safety guidelines during replacement.
8.3 Calibration and Adjustment
Calibration and adjustment of the Fluke 87 III ensure accurate measurements. Use Fluke-approved calibration kits for precise adjustments. Turn on the multimeter and select the appropriate function. Follow the manual’s step-by-step instructions to zero the instrument or adjust ranges. Ensure all connections are secure to avoid errors. After calibration‚ verify measurements with known reference values. If adjustments fail‚ refer to the troubleshooting section or contact Fluke support. Regular calibration maintains precision and reliability‚ adhering to safety and measurement standards. Always use genuine Fluke accessories for optimal performance.
Additional Resources
For further assistance‚ visit the official Fluke website for FAQs‚ technical documentation‚ and service manuals. Explore online support‚ software downloads‚ and contact details for troubleshooting and inquiries.
9.1 Online Support and Downloads
The official Fluke website offers extensive online support‚ including downloadable resources like user manuals‚ service guides‚ and software updates for the Fluke 87 III. Users can access FAQs‚ troubleshooting tips‚ and detailed technical documentation to enhance their experience with the multimeter. Additionally‚ the site provides contact information for customer support‚ ensuring assistance is readily available for any queries or issues. Utilize these resources to maximize the functionality and longevity of your Fluke 87 III multimeter.
9.2 Frequently Asked Questions (FAQs)
The FAQs section addresses common queries about the Fluke 87 III‚ covering topics like True RMS measurement‚ temperature probes‚ and safety standards. Users can find solutions for issues such as autoranging‚ battery replacement‚ and error codes. Additionally‚ FAQs provide clarity on advanced features like data logging and MAX/MIN mode. This resource helps troubleshoot common problems and ensures optimal use of the multimeter. For detailed answers‚ refer to the official Fluke support page.