87V Fluke Multimeter Used
Fluke 87V Digital Multimeter — Key Features at a Glance True-rms responding — correctly measures non-sinusoidal waveforms from variable-frequency drives, switching power supplies, LED drivers, and other non-linear loads Basic DC voltage accuracy: ± (0.05 % + 1) across all five DC ranges (6 V / 60 V / 600 V / 1000 V) 6,000-count default digital display with a selectable 19,999-count (4½-digit) high-resolution mode, 33-segment analog bar graph updating 40 times per second Onboard temperature measurement with K-type thermocouple input: −200 °C to +1090 °C (−328 °F to +1994 °F) Switchable low pass filter on AC voltage for clean variable-frequency-drive measurements 250 µs peak MIN MAX capture for transient events; standard MIN MAX at 100 ms nominal response Safety: 1000 V Overvoltage Category III / 600 V Overvoltage Category IV per ANSI/ISA, CSA, IEC 664, UL3111-1, TÜV EN61010-1 Built to last: 400-hour battery life, 1-meter drop tested per IEC 61010-1:2001, MIL-PRF-28800 Class 2 vibration Overview In summary, the Fluke 87V is the industrial-standard true-rms responding digital multimeter for field electricians, motor-drive technicians, and plant maintenance crews who measure non-sinusoidal current and voltage waveforms from variable-frequency drives, switching power supplies, and other non-linear loads. The 87V provides ± (0.05 % + 1) basic DC voltage accuracy, a 6,000-count default display with a selectable 19,999-count (4½-digit) high-resolution mode, integrated K-type thermocouple temperature measurement from −200 °C to +1090 °C, a switchable low pass filter for clean VFD measurements, and 250 µs peak MIN MAX capture for transient events. Safety compliance covers 1000 V Overvoltage Category III and 600 V Overvoltage Category IV per ANSI/ISA, CSA, IEC 664, UL3111-1, and TÜV EN61010-1. What is the Fluke 87V used for? The Fluke 87V is used by industrial electricians, plant maintenance technicians, motor-drive specialists, and field service engineers to measure voltage, current, resistance, capacitance, frequency, and temperature in industrial electrical environments — particularly where variable-frequency drives, switching power supplies, and other non-linear loads produce non-sinusoidal waveforms that require true-rms measurement. It is the meter that pulls out of the tool bag at every motor cabinet, every VFD enclosure, and every switching-supply troubleshooting call. Its 1000 V rms terminal rating, 11 A FAST fuse on the A input, and 1000 V Overvoltage Category III / 600 V Overvoltage Category IV safety compliance make it appropriate for work on distribution wiring, panels, bus bars, and the utility service entrance. How does the Fluke 87V compare to the Fluke 83V? The 87V is true-rms responding, with tighter accuracy specifications across DC voltage, resistance, and current; a selectable 4½-digit (19,999 count) high-resolution mode; integrated K-type thermocouple temperature measurement; a switchable low pass filter for VFD measurements; and a 250 µs peak MIN MAX capture mode. The 83V is average-responding rms indicating, with the 6,000-count digital display only, no temperature measurement, no low pass filter, and standard MIN MAX recording at 100 ms nominal response. Both meters share the same Fluke 80V-series industrial form factor and the same 1000 V CAT III / 600 V CAT IV safety rating. Recommended Accessories & Options Every professional DMM owner replaces leads every 1–2 years, more frequently in harsh environments. The accessory list below covers the standard pairings for the Fluke 80V-series industrial meters; none of these are required to order the meter — they are listed as options to pair at quote time. Fluke TL75 Standard Test Leads: Hard-point banana-plug test leads, rated CAT III 1000 V / CAT IV 600 V. The standard replacement lead for any Fluke DMM. Fluke TL224 SureGrip Insulated Test Leads: Premium silicone-insulated leads with improved grip handles. CAT III 1000 V rating. The upgrade pick for field electricians who use their leads heavily. Fluke TPAK Magnetic Hanger: Magnetic strap for hands-free meter mounting on enclosure doors and steel surfaces — frees both hands for probing. Fluke 80BK-A Integrated DMM Temperature Probe: K-type thermocouple bead probe (87V only — required to use the 87V's onboard −200 °C to +1090 °C temperature measurement function). Fluke C35 Soft Carrying Case: Padded zippered carrying case sized for the 80V-series meter with holster, leads, and accessories. Replacement holster and flex-stand: The same yellow holster with integrated flex-stand referenced in the dimensions and weight specifications of the datasheet. Replacement fuses: 44/100 A, 1000 V FAST Fuse for the mA/µA inputs; 11 A, 1000 V FAST Fuse for the A input — match the datasheet's fuse-protection specifications exactly. Replacement 9 V battery: 9 V zinc, NEDA 1604 or 6F22 or 006P; 400 hours typical with alkaline (backlight off). Annual calibration service: The published accuracy specification covers a one-year period after calibration; recommended for documentation-driven compliance environments. Fluke 87V — Full Detail & Specifications The digital multimeter is the most widely deployed test instrument in the world. It measures the three fundamental electrical quantities — voltage (AC and DC), current, and resistance — and it is carried daily by every electrician, every field service technician, every HVAC/R professional, every industrial maintenance engineer, and every facilities crew that touches an electrical system. When a professional says "I need a meter," the conversation almost always lands on the same name: Fluke. The brand has earned that position through decades of rugged, accurate, category-defining field instruments — a trust anchor that sets the standard against which every competing DMM is measured. The Fluke 87V sits in the Fluke 80V industrial series — the line that established the modern field DMM form factor. The 87V is the unambiguous standard for field electricians and industrial maintenance — the meter that pulls out of the tool bag at every motor drive panel, every variable-frequency drive cabinet, and every switching-supply troubleshooting call. Both the 83V and the 87V share the same industrial-grade housing, the same 1000 V rms terminal rating, the same 1000 V Overvoltage Category III / 600 V Overvoltage Category IV safety compliance, and the same 1-meter drop tolerance per IEC 61010-1:2001 with the holster installed. The differences between the two models live in measurement architecture, accuracy class, and feature set — choose the model that matches the waveforms in your work and the documentation standard of your trade. True-RMS Responding — Built for Distorted Waveforms The Fluke 87V is a true-rms responding meter. That distinction is not marketing — it is the difference between a correct reading and a wrong one on any non-sinusoidal load. Variable-frequency drives, switching power supplies, LED drivers, electronic ballasts, and rectified DC buses all produce current and voltage waveforms that are visibly distorted. An average-responding meter calibrated for sine waves will under-read those signals — sometimes by 20 % or more. A true-rms meter computes the actual heating value of the waveform regardless of shape, which is the measurement an engineer or electrician actually needs when sizing a circuit, troubleshooting a motor trip, or auditing a non-linear load. Per the datasheet: "The Fluke 87V is a true-rms responding meter. When the input leads are shorted together in the ac functions, the meter may display a residual reading between 1 and 30 counts. A 30-count residual reading will cause only a 2-digit change for readings over 3 % of range. Using REL to offset this reading may produce a much larger constant error in later measurements." CAT III 1000 V / CAT IV 600 V — The Safety Rating That Matters Per the datasheet's general specifications: "Complies with ANSI/ISA S82.01-2004, CSA 22.2 No. 1010.1:2004 to 1000 V Overvoltage Category III, IEC 664 to 600 V Overvoltage Category IV. UL listed to UL3111-1. Licensed by TÜV to EN61010-1." Translated into practical terms: CAT III at 1000 V is the firm minimum rating for work on distribution wiring, panels, and bus bars — anything between the service entrance and the branch circuits. CAT IV at 600 V is the rating required for work at the utility service entrance, on outdoor conductors, and on the supply side of the main disconnect. A meter rated only CAT II should never be used on permanently installed distribution wiring; the Fluke 87V meets both the CAT III and CAT IV thresholds that professional electrical work demands. Selectable Display Resolution — 6,000 or 19,999 Counts The 87V displays measurements at 6,000 counts (3¾ digits) by default with the digital bar graph updating four times per second — the industry-standard field DMM resolution. For applications where finer reading granularity matters, the 87V offers a selectable 4½-digit high-resolution mode that expands the digital display to 19,999 counts. In high-resolution mode, the accuracy specification's "number of least significant digits" multiplies by ten. The 87V is purpose-built as a field instrument for electricians and industrial maintenance — not a bench precision DMM. Onboard Temperature Measurement — Thermocouple Input The 87V accepts a K-type thermocouple probe for direct temperature measurement from −200 °C to +1090 °C (−328 °F to +1994 °F) without a separate instrument. HVAC/R technicians measuring superheat and subcooling, motor maintenance crews tracking bearing temperatures, process technicians verifying thermal-overload trip points, and electrical contractors documenting connection temperatures with the same instrument they already carry — all of those workflows collapse into a single tool. The temperature specification: ± (1 % + 10) at the meter, ± (1 % + 18) for the °F range, with accuracy that does not include thermocouple-probe error. Ambient temperature must be stable to ± 1 °C for stated accuracy; for ambient changes of ± 5 °C, the rated accuracy applies after a one-hour stabilization period. Low Pass Filter — Variable-Frequency Drive Measurements The 87V includes a switchable low pass filter on its AC voltage function. When a true-rms meter measures the output of a variable-frequency drive, the high-frequency PWM carrier component can swamp the fundamental motor-drive frequency, producing readings that bear little resemblance to what the motor actually sees. The 87V's low pass filter attenuates frequencies above approximately 1 kHz, surfacing the fundamental waveform that determines motor performance. MIN MAX Recording — 250 µs Peak Capture Beyond standard MIN MAX recording at 100 ms nominal response (specified accuracy ± 12 counts for changes longer than 200 ms in duration on DC functions; ± 40 counts for AC changes longer than 350 ms), the 87V provides a 250 µs peak-capture mode that resolves transients invisible to standard DMM sampling. Inrush currents, motor-start surges, capacitor-charge transients, contactor-bounce events — measurements requiring sub-millisecond response live in this mode. For repetitive peaks, the 1 ms specification applies to single events. Accuracy Specification — How to Read It Per the datasheet: "Accuracy is given as ±([% of reading] + [number of least significant digits]) at 18 °C to 28 °C, with relative humidity up to 90 %, for a period of one year after calibration." "For Model 87 in the 4½-digit mode, multiply the number of least significant digits (counts) by 10." "AC conversions are ac-coupled and valid from 3 % to 100 % of range. Model 87 is true-rms responding. AC crest factor can be up to 3 at full scale, 6 at half scale. For non-sinusoidal wave forms add −(2 % Rdg + 2 % full scale) typical, for a crest factor up to 3." Fluke 87V AC Voltage Function Specifications (true-rms) Accuracy is given as ±([% of reading] + [number of least significant digits]) at 18 °C to 28 °C, with relative humidity up to 90 %, for a period of one year after calibration. For Model 87 in the 4½-digit mode, multiply the number of least significant digits (counts) by 10. AC conversions are ac-coupled and valid from 3 % to 100 % of range. Model 87 is true-rms responding. AC crest factor can be up to 3 at full scale, 6 at half scale. For non-sinusoidal wave forms add −(2 % Rdg + 2 % full scale) typical, for a crest factor up to 3. Function Range Resolution Accuracy 45 – 65 Hz 30 – 200 Hz 200 – 440 Hz 440 Hz – 1 kHz 1 – 5 kHz 5 – 20 kHz1 V~2,4 600.0 mV 0.1 mV ± (0.7 % + 4) ± (1.0 % + 4) ± (2.0 % + 4) ± (2.0 % + 20) 6.000 V 0.001 V ± (0.7 % + 2) ± (2.0 % + 4)3 unspecified 60.00 V 0.01 V 600.0 V 0.1 V 1000 V 1 V ± (1.0 % + 4) unspecified unspecified Using low pass filter ± (0.7 % + 2) ± (1.0 % + 4) + 1 % + 4 / −6 % − 45 unspecified unspecified unspecified Below 10 % of range, add 6 counts. The Fluke 87V is a true-rms responding meter. When the input leads are shorted together in the ac functions, the meter may display a residual reading between 1 and 30 counts. A 30-count residual reading will cause only a 2-digit change for readings over 3 % of range. Using REL to offset this reading may produce a much larger constant error in later measurements. Frequency range: 1 kHz to 2.5 kHz. A residual reading of up to 13 digits with leads shorted, will not affect stated accuracy above 3 % of range. Specification increases from −1 % at 200 Hz to −6 % at 440 Hz when filter is in use. DC Voltage, Resistance, and Conductance Function Specifications Function Range Resolution Fluke 87V Accuracy V— 6.000 V 0.001 V ± (0.05 % + 1) 60.00 V 0.01 V ± (0.05 % + 1) 600.0 V 0.1 V ± (0.05 % + 1) 1000 V 1 V ± (0.05 % + 1) mV— 600.0 mV 0.1 mV ± (0.1 % + 1) Ω 600.0 Ω 0.1 Ω ± (0.2 % + 2)1 6.000 kΩ 0.001 kΩ ± (0.2 % + 1) 60.00 kΩ 0.01 kΩ ± (0.2 % + 1) 600.0 kΩ 0.1 kΩ ± (0.6 % + 1) 6.000 MΩ 0.001 MΩ ± (0.6 % + 1) 50.00 MΩ 0.01 MΩ ± (1.0 % + 3)2 nS 60.00 nS 0.01 nS ± (1.0 % + 10)1 When using the REL Δ function to compensate for offsets. Add 0.5 % of reading when measuring above 30 MΩ in the 50 MΩ range and 20 counts below 33 nS in the 60 nS range. Temperature Specifications (87V only) Temperature Resolution Accuracy1, 2 −200 °C to +1090 °C 0.1 °C 1 % + 10 −328 °F to +1994 °F 0.1 °F 1 % + 18 Does not include error of the thermocouple probe. Accuracy specification assumes ambient temperature stable to ± 1 °C. For ambient temperature changes of ± 5 °C, rated accuracy applies after 1 hour. Current Function Specifications Function Range Resolution Model 87 Accuracy Burden Voltage (typical) A~(45 Hz to 2 kHz) 60.00 mA 0.01 mA ± (1.0 % + 2) 1.8 mV/mA 400.0 mA6 0.1 mA ± (1.0 % + 2) 1.8 mV/mA 6.000 A 0.001 A ± (1.0 % + 2) 0.03 V/A 10.00 A4 0.01 A ± (1.0 % + 2) 0.03 V/A A— 60.00 mA 0.01 mA ± (0.2 % + 4) 1.8 mV/mA 400.0 mA6 0.1 mA ± (0.2 % + 2) 1.8 mV/mA 6.000 A 0.001 A ± (0.2 % + 4) 0.03 V/A 10.00 A4 0.01 A ± (0.2 % + 2) 0.03 V/A µA~(45 Hz to 2 kHz) 600.0 µA 0.1 µA ± (1.0 % + 2) 100 µV/µA 6000 µA 1 µA ± (1.0 % + 2) 100 µV/µA µA— 600.0 µA 0.1 µA ± (0.2 % + 4) 100 µV/µA 6000 µA 1 µA ± (0.2 % + 2) 100 µV/µA AC conversion for Model 83 is ac coupled and calibrated to the rms value of a sine wave input. AC conversions for Model 87 are ac coupled, true rms responding, and valid from 3 % to 100 % of range. Model 87 is a true rms responding meter. When the input leads are shorted together in the ac functions, the Meter may display a residual reading between 1 and 30 counts. A 30 count residual reading will cause only a 2 digit change for readings over 3 % of range. Using REL to offset this reading may produce a much larger constant error in later measurements. 10 A continuous up to 35 °C; < 20 minutes on, 5 minutes off at 35 °C to 55 °C. 20 A for 30 seconds maximum; > 10 A unspecified. Below a reading of 200 counts, add 10 counts. 400 mA continuous; 600 mA for 18 hours maximum. Capacitance and Diode Function Specifications Function Range Resolution Accuracy Capacitance 10.00 nF 0.01 nF ± (1 % + 2)1 100.0 nF 0.1 nF ± (1 % + 2)1 1.000 µF 0.001 µF ± (1 % + 2) 10.00 µF 0.01 µF ± (1 % + 2) 100.0 µF 0.1 µF ± (1 % + 2) 9999 µF 1 µF ± (1 % + 2) Diode 3.000 V 0.001 V ± (2 % + 1) With a film capacitor or better, using Relative mode to zero residual. MIN MAX Recording Specifications Model Nominal Response Accuracy 87V (dc functions) 100 ms to 80 % Specified accuracy ± 12 counts for changes > 200 ms in duration > 25 % of range 87V (ac functions) 120 ms to 80 % Specified accuracy ± 40 counts for changes > 350 ms and inputs 87V — Peak (Model 87 only)1 250 µs (peak) Specified accuracy ± 100 counts for changes > 250 µs in duration (add ± 100 counts for readings over 6000 counts) (add ± 100 counts for readings in Low Pass mode) For repetitive peaks: 1 ms for single events. Electrical Characteristics of the Terminals Function Overload Protection1 Input Impedance (nominal) Common Mode Rejection Ratio (1 kΩ unbalance) Normal Mode Rejection V dc 1000 V rms 10 MΩ < 100 pF > 120 dB at dc, 50 Hz or 60 Hz > 60 dB at 50 Hz or 60 Hz mV dc 1000 V rms 10 MΩ < 100 pF > 120 dB at dc, 50 Hz or 60 Hz > 60 dB at 50 Hz or 60 Hz V ac (ac-coupled) 1000 V rms 10 MΩ < 100 pF > 60 dB, dc to 60 Hz — Function Open Circuit Test Voltage Full Scale Voltage Typical Short Circuit Current To 6.0 MΩ 50 MΩ or 60 nS 600 Ω 6 kΩ 60 kΩ 600 kΩ 6 MΩ 50 MΩ Ω 1000 V rms < 7.3 V dc < 4.1 V dc 1 mA 100 µA 10 µA 1 µA 1 µA 0.5 µA Diode 1000 V rms < 3.9 V dc 3.000 V dc 0.6 mA typical 106 V Hz maximum. Frequency Counter Specifications Function Range Resolution Accuracy Frequency(0.5 Hz to 200 kHz, pulse width > 2 µs) 199.99 0.01 Hz ± (0.005 % + 1) 1999.9 0.1 Hz ± (0.005 % + 1) 19.999 kHz 0.001 kHz ± (0.005 % + 1) 199.99 kHz 0.01 kHz ± (0.005 % + 1) > 200 kHz 0.1 kHz unspecified Frequency Counter Sensitivity and Trigger Levels Input Range1 Minimum Sensitivity (RMS Sine wave) Approximate Trigger Level (DC Voltage Function) 5 Hz – 20 kHz 0.5 Hz – 200 kHz 600 mV dc 70 mV (to 400 Hz) 70 mV (to 400 Hz) 40 mV 600 mV ac 150 mV 150 mV — 6 V 0.3 V 0.7 V 1.7 V 60 V 3 V 7 V (≤ 140 kHz) 4 V 600 V 30 V 70 V (≤ 14.0 kHz) 40 V 1000 V 100 V 700 V (≤ 1.4 kHz) 100 V Duty Cycle Range: 0.0 to 99.9 % — Accuracy: Within ± (0.2 % per kHz + 0.1 %) for risetimes < 1 µs Maximum input for specified accuracy = 10X Range or 1000 V. General Specifications Maximum voltage between any terminal and earth ground 1000 V rms Fuse protection for mA or µA inputs 44/100 A, 1000 V FAST Fuse Fuse protection for A input 11 A, 1000 V FAST Fuse Display — Digital 6000 counts updates 4/sec; (Model 87V also has 19,999 counts in high-resolution mode) Display — Analog 33 segments, updates 40/sec Display — Frequency 19,999 counts, updates 3/sec at > 10 Hz Temperature — Operating −20 °C to +55 °C Temperature — Storage −40 °C to +60 °C Altitude — Operating 2000 m Altitude — Storage 10,000 m Temperature coefficient 0.05 × (specified accuracy)/ °C (< 18 °C or > 28 °C) Electromagnetic compatibility In an RF field of 3 V/m total accuracy = specified accuracy Relative humidity 0 % to 90 % (0 °C to 35 °C); 0 % to 70 % (35 °C to 55 °C) Battery type 9 V zinc, NEDA 1604 or 6F22 or 006P Battery life 400 hours typical with alkaline (with backlight off) Vibration Per MIL-PRF-28800 for a Class 2 instrument Shock 1 Meter drop per IEC 61010-1:2001 Size (H × W × L) 1.25 in × 3.41 in × 7.35 in (3.1 cm × 8.6 cm × 18.6 cm) Size with holster and flex-stand 2.06 in × 3.86 in × 7.93 in (5.2 cm × 9.8 cm × 20.1 cm) Weight 12.5 oz (355 g) Weight with holster and flex-stand 22.0 oz (624 g) Safety Complies with ANSI/ISA S82.01-2004, CSA 22.2 No. 1010.1:2004 to 1000 V Overvoltage Category III, IEC 664 to 600 V Overvoltage Category IV. UL listed to UL3111-1. Licensed by TÜV to EN61010-1. Factual Grounding — Specifications and Industry Context The Fluke 87V delivers ± (0.05 % + 1) basic DC voltage accuracy across all five DC voltage ranges (6.000 V, 60.00 V, 600.0 V, 1000 V), ± (0.2 % + 1) basic resistance accuracy on the mid-decade ranges, ± (0.2 % + 2) basic DC current accuracy on the 400 mA and 10 A ranges, and 0.005 % + 1 frequency counter accuracy from 0.5 Hz to 200 kHz. Battery life is 400 hours typical with an alkaline 9 V zinc battery (NEDA 1604 / 6F22 / 006P), with backlight off. Operating temperature is −20 °C to +55 °C; storage temperature is −40 °C to +60 °C; operating altitude is 2000 m. The instrument is vibration-tested per MIL-PRF-28800 for a Class 2 instrument and shock-tested to a 1 Meter drop per IEC 61010-1:2001. Net weight is 12.5 oz (355 g); with holster and flex-stand, 22.0 oz (624 g). Total accuracy in an RF field of 3 V/m equals the specified accuracy — a robust electromagnetic compatibility specification for noisy industrial environments. Entity Authority — Fluke Corporation and the Field DMM Standard Fluke Corporation was founded in 1948 in Seattle by John Fluke Sr. and is now part of Fortive Corporation (previously Danaher). Fluke is the dominant global brand in field test instruments and the unambiguous reference standard for handheld digital multimeters in industrial, electrical contracting, and facilities maintenance markets. The Fluke 80V industrial series carries safety compliance to ANSI/ISA S82.01-2004, CSA 22.2 No. 1010.1:2004 (1000 V Overvoltage Category III), IEC 664 (600 V Overvoltage Category IV), UL3111-1 listing, and TÜV licensing to EN61010-1. Vibration testing follows MIL-PRF-28800 for a Class 2 instrument; shock testing follows IEC 61010-1:2001 for a 1 Meter drop. The CAT III and CAT IV ratings define the IEC transient overvoltage protection level required for work on distribution wiring, panels, bus bars (CAT III), and the utility service entrance (CAT IV). How does the Fluke 87V compare to industry baseline digital multimeters? Safety rating: 1000 V Overvoltage Category III and 600 V Overvoltage Category IV — the firm minimum for industrial panel and utility service-entrance work, exceeding the CAT II rating typical of consumer-grade DMMs. Basic DC voltage accuracy: ± (0.05 % + 1) across all five DC ranges — industrial-precision field accuracy, twice as tight as the 83V and roughly twice as tight as typical professional field DMMs in the same form factor. AC measurement architecture: True-rms responding — correctly measures non-sinusoidal waveforms from variable-frequency drives, switching power supplies, LED drivers, and other non-linear loads where average-responding meters under-read by 20 % or more. Display resolution: 6,000 counts default with a selectable 19,999-count (4½-digit) high-resolution mode — exceeding the 4,000-count basic and 6,000-count entry-professional thresholds typical of the field DMM category. Fuse protection: 44/100 A, 1000 V FAST Fuse on mA/µA inputs and 11 A, 1000 V FAST Fuse on the A input — sized for the high-energy fault currents present at industrial panels rather than the lower-energy faults seen at branch-circuit outlets. Drop protection: 1 Meter drop per IEC 61010-1:2001 with the holster installed — appropriate for daily tool-bag use in a field service environment. Battery life: 400 hours typical with alkaline — multi-week continuous-use life that minimizes downtime in the field.
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