87V MAX Digital Multimeter Users Manual October 2019 © 2019 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
Lifetime Limited Warranty Each Fluke 20, 70, 80, 170, 180 and 280 Series DMM will be free from defects in material and workmanship for its lifetime. As used herein, “lifetime” is defined as seven years after Fluke discontinues manufacturing the product, but the warranty period shall be at least ten years from the date of purchase.
Table of Contents Title Page Introduction .................................................................................................................... How to Contact Fluke ..................................................................................................... Safety Information .......................................................................................................... Features ............................................................................................
87V MAX Users Manual Capacitance Measurements ..................................................................................... Diode Tests ............................................................................................................... AC or DC Current Measurements ............................................................................. Frequency Measurements ........................................................................................ Duty Cycle Measurements ............
Contents (continued) Frequency ................................................................................................................. Frequency Counter Sensitivity and Trigger Levels .................................................... Duty Cycle (Vdc and mVdc) ...................................................................................... Input Characteristics .................................................................................................. MIN MAX Recording .............
87V MAX Users Manual iv
Introduction XW Warning Read “Safety Information” before using the Meter. The 87V MAX (the Product or Meter) is a True-rms Digital Multimeter. In addition, the 87V MAX measures temperature using a type-K thermocouple.
7V MAX Users Manual Features Tables 1 through 4 briefly describe the features of the Meter. Table 1. Inputs gaq112.emf Terminal Description A Input for 0 A to 10.00 A current (10 - 20 A overload for 30 seconds maximum), current frequency, and duty cycle measurements. Input for 0 μA to 400 mA current measurements (600 mA for 18 hrs) and current frequency and duty cycle. COM 2 Return terminal for all measurements.
Digital Multimeter Features Table 2. Rotary Switch Positions Switch Position Any Position Function When the Meter is turned on, the Meter model number briefly appears on the display. AC voltage measurement Press (yellow) for low-pass filter () DC voltage measurement 600 mV dc voltage range Press (yellow) for temperature () Press for continuity test. e Resistance measurement Press (yellow) for capacitance measurement. Diode test AC current measurements from 0 mA to 10.
87V MAX Users Manual Table 3. Pushbuttons Button (Yellow) 4 Switch Position Function Selects capacitance Selects temperature Selects ac low-pass filter function Switches between dc and ac current Switches between dc and ac current Any switch position Switches between the ranges available for the selected function. To return to autoranging, hold the button down for 1 second. Switches between °C and °F.
Digital Multimeter Features Table 3. Pushbuttons (cont.) Button Switch Position Continuity MIN MAX recording Hz, Duty Cycle Any switch position Function Turns the continuity beeper on and off Switches between Peak (250 μs) and Normal (100 ms) response times. Toggles the meter to trigger on positive or negative slope. Turns the button backlight and display backlight on, makes them brighter, and turns them off. Hold down for one second to enter the HiRes digit mode.
87V MAX Users Manual Table 3. Pushbuttons (cont.) Button (Relative mode) 6 Switch Position Function Any switch position Stores the present reading as a reference for subsequent readings. The display is zeroed, and the stored reading is subtracted from all subsequent readings. Any switch position except diode test Press for frequency measurements. Starts the frequency counter. Press again to enter duty cycle mode.
Digital Multimeter Features Number Trig± High voltage present at the input. Appears if the input voltage is 30 V or greater (ac or dc), Also appears in low-pass filter mode. Also appears in cal, Hz, and duty cycle modes. Display HOLD is active. Peak Min Max modes and the response time is 250 μs. Polarity indicator for the analog bargraph. MAX MIN AVG Positive or negative slope indicator for Hz/duty cycle triggering. Table 4.
87V MAX Users Manual Table 4. Display Features (cont.) Number Feature Indication Low battery. XW Warning: To A, μA, mA volts, millivolts μF, nF microfarad, nanofarad nS nanosiemens % Percent. Used for duty cycle measurements. Hz, kHz AC DC Feature °C, °F 610000 mV HiRes High resolution (Hi Res) mode. HiRes=19,999 Auto Autorange mode.
Digital Multimeter Features Table 4. Display Features (cont.) Number -- Feature Indication Overload condition is detected. Replace the battery immediately. In the capacitance function, too much electrical charge is present on the capacitor being tested. The Meter automatically turns off if you do not turn the rotary switch or press a button for 30 minutes. If MIN MAX Recording is enabled, the Meter will not power off. Refer to Table 5 to disable automatic power-off.
87V MAX Users Manual Table 5. Power-Up Options Button Power-Up Option Disables automatic power-off feature (Meter normally powers off in 30 minutes). (Yellow) The Meter reads “” until is released. Enables the Meter’s calibration mode and prompts for a password. The Meter reads “” and enters calibration mode. See 87V MAX Calibration Information. Enables the Meter’s smoothing feature. The Meter reads “” until is released. Turns on all LCD segments.
Digital Multimeter How to Make Measurements How to Make Measurements The following sections describe how to make measurements with the Meter. Switch Box AC and DC Voltage Measurements The Meter features true-rms readings, which are accurate for distorted sine waves and other waveforms (with no dc offset) such as square waves, triangle waves, and staircase waves. V The Meter’s voltage ranges are 600.0 mV, 6.000 V, 60.00 V, 600.0 V, and 1000 V. The select the 600.
87V MAX Users Manual When measuring voltage, the Meter acts approximately like a 10-MΩ (10,000,000 Ω) impedance in parallel with the circuit. This loading effect can cause measurement errors in high-impedance circuits. In most cases, the error is negligible (0.1 % or less) if the circuit impedance is 10 kΩ (10,000 Ω) or less. For better accuracy when measuring the dc offset of an ac voltage, measure the ac voltage first.
Digital Multimeter How to Make Measurements XW Warning W Caution To prevent possible electric shock or personal injury, do not use the low-pass filter to verify the presence of hazardous voltages. Voltages greater than what is indicated may be present. First, make a voltage measurement without the filter to detect the possible presence of hazardous voltage. Then, select the filter. To prevent possible damage to the Meter or other equipment, remember that while the Meter is rated for -200.0 °C to +1090.
87V MAX Users Manual Continuity Tests XW Warning To prevent possible electrical shock, fire, or personal injury, disconnect power and discharge all high-voltage capacitors before you measure resistance, continuity, capacitance, or a diode junction. 14 The continuity test features a beeper that sounds as long as a circuit is complete. The beeper allows you to perform quick continuity tests without having to watch the display. To test for continuity, set up the Meter as shown in Figure 4.
Digital Multimeter How to Make Measurements For in-circuit tests, turn circuit power off. gaq103.emf Figure 4.
87V MAX Users Manual Resistance Measurements XW Warning To prevent possible electrical shock, fire, or personal injury, disconnect power and discharge all high-voltage capacitors before you measure resistance, continuity, capacitance, or a diode junction. The Meter measures resistance by sending a small current through the circuit. Because this current flows through all possible paths between the probes, the resistance reading represents the total resistance of all paths between the probes.
Digital Multimeter How to Make Measurements In-Circuit Resistance Measurements Isolating a Potentiometer Circuit Power OFF 1 3 2 Disconnect 2 1 3 Isolating a Resistor Disconnect gaq106.emf Figure 5.
87V MAX Users Manual How to Use Conductance for High Resistance or Leakage Tests Conductance, the inverse of resistance, is the ability of a circuit to pass current. High values of conductance correspond to low values of resistance. The Meter's 60-nS range measures conductance in nanosiemens (1 nS = 0.000000001 siemens). Because such small amounts of conductance correspond to extremely high resistance, the nS range lets you determine the resistance of components up to 100,000 MΩ, 1/1 nS = 1,000 MΩ.
Digital Multimeter How to Make Measurements Capacitance Measurements XW Warning To prevent possible electrical shock, fire, or personal injury, disconnect power and discharge all high-voltage capacitors before you measure resistance, continuity, capacitance, or a diode junction. Select Capacitance The Meter's capacitance ranges are 10.00 nF, 100.0 nF, 1.000 μF, 10.00 μF, 100.0 μF, and 9999 μF. To measure capacitance, set up the Meter as shown in Figure 6.
87V MAX Users Manual Diode Tests XW Warning To prevent possible electrical shock, fire, or personal injury, disconnect power and discharge all high-voltage capacitors before you measure resistance, continuity, capacitance, or a diode junction. Use the diode test to check diodes, transistors, silicon controlled rectifiers (SCRs), and other semiconductor devices. This function tests a semiconductor junction by sending a current through the junction, then measuring the junction's voltage drop.
Digital Multimeter How to Make Measurements Reverse Bias Forward Bias Typical Reading + + Single Beep Shorted Bad Diode Open Bad Diode or gaq109.emf Figure 7.
87V MAX Users Manual AC or DC Current Measurements XWWarning To prevent possible electrical shock, fire, or personal injury, remove circuit power before you connect the Product in the circuit when you measure current. Connect the Product in series with the circuit. WCaution To prevent damage to the Meter or to the equipment under test: • Check the Meter's fuses before measuring current. • Use the proper terminals, function, and range for all measurements.
Digital Multimeter How to Make Measurements Circuit Power: OFF to connect meter. ON for measurement. OFF to disconnect meter. Total Current to Circuit mA A A Current Through One Component gaq107.emf Figure 8.
87V MAX Users Manual 3. If you are using the A terminal, set the rotary switch to mA/A. If you are using the mA/μA terminal, set the rotary switch to for currents below 6000 μA (6 mA), or for currents above 6000 μA. 4. To measure dc current, press . 5. Break the circuit path to be tested. Touch the black probe to the more negative side of the break; touch the red probe to the more positive side of the break. Reversing the leads will produce a negative reading, but will not damage the Meter. 6.
Digital Multimeter How to Make Measurements Frequency Measurements The following are some tips for measuring frequency: The Meter measures the frequency of a voltage or current signal by counting the number of times the signal crosses a threshold level each second. • Table 6 summarizes the trigger levels and applications for measuring frequency using the various ranges of the Meter's voltage and current functions. To measure frequency, connect the Meter to the signal source; then press .
87V MAX Users Manual Table 6. Functions and Trigger Levels for Frequency Measurements Function Range Typical Application 6 V, 60 V, 600 V, 1000 V ±5 % of scale Most signals. 600 mV ±30 mV High-frequency 5 V logic signals. (The dc-coupling of the function can attenuate high-frequency logic signals, reducing their amplitude enough to interfere with triggering.) m 600 mV 40 mV Refer to the measurement tips given before this table. 6V 1.7 V 5 V logic signals (TTL).
Digital Multimeter How to Make Measurements frequency function, you can change the slope for the Meter's counter by pressing . Duty Cycle Measurements Duty cycle (or duty factor) is the percentage of time a signal is above or below a trigger level during one cycle (Figure 9). The duty cycle mode is optimized for measuring the on or off time of logic and switching signals.
87V MAX Users Manual How to Determine Pulse Width For a periodic waveform (its pattern repeats at equal time intervals), you can determine the amount of time that the signal is high or low as follows: 1. Measure the signal's frequency. 2. Push a second time to measure the signal's duty cycle. Push to select a measurement of the signal's positive or negative pulse, refer to Figure 9. 3.
Digital Multimeter HiRes Mode Zoom Mode (Power Up Option Only) To use the Rel Zoom Bargraph: 1. Hold down while turning the Meter on. The display reads “”. 2. Select the relative mode by pressing again. 3. The center of the bargraph now represents zero and the sensitivity of the bargraph increases by a factor of 10. Measured values more negative than the stored reference activate segments to the left of center; values more positive activate segments to the right of center.
87V MAX Users Manual MIN MAX Recording Mode The MIN MAX mode records minimum and maximum input values. When the inputs go below the recorded minimum value or above the recorded maximum value, the Meter beeps and records the new value. This mode can be used to capture intermittent readings, record maximum readings while you are away or record readings while you are operating the equipment under test and cannot watch the Meter.
Digital Multimeter Smooth Feature (Power Up Option Only) Table 7. MIN MAX Functions Button (while in MIN MAX mode) PEAK MIN MAX (hold for 1 second) MIN MAX Function Enter MIN MAX recording mode. The Meter is locked in the range displayed before you entered MIN MAX mode. (Select the desired measurement function and range before entering MIN MAX.) The Meter beeps each time a new minimum or maximum value is recorded. Step through maximum (MAX), minimum (MIN), average (AVG) and present values.
87V MAX Users Manual AutoHOLD Mode XWWarning To prevent possible electric shock, fire, or personal injury: • • Do not use AutoHOLD mode to determine that circuits are without power. The AutoHOLD mode will not capture unstable or noisy readings. Do not use the HOLD function to measure unknown potentials. When HOLD is turned on, the display does not change when a different potential is measured. The AutoHOLD mode captures the present reading on the display.
Digital Multimeter Maintenance Fuse Test Maintenance XWWarning To prevent possible electrical shock, fire, or personal injury: • Remove the input signals before you clean the Product. • Do not operate the Product with covers removed or the case open. Hazardous voltage exposure is possible. • Use only specified replacement parts. • Have an approved technician repair the Product. General Maintenance Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents.
87V MAX Users Manual How to Replace the Batteries Replace the batteries with three AA batteries (NEDA 15A IEC LR6). Good 0.44 A fuse: 0.995 kΩ to 1.005 kΩ XWWarning Replace fuse: OL To prevent possible electrical shock, fire, or personal injury: Touch top half of input contacts Good 11 A fuse: 00.0 Ω to 00.5 Ω gaq105.emf 34 Batteries contain hazardous chemicals that can cause burns or explode. If exposure to chemicals occurs, clean with water and get medical aid.
Digital Multimeter Service and Parts 3. 4. 5. 6. Remove the three batteries and replace all three with AA Alkaline batteries (). Ensure the battery compartment gasket () is properly installed around the outside edge of the battery compartment barrier. Replace the battery door by aligning the battery compartment barrier with battery compartment. Secure the door with the six Phillips-head screws. How to Replace the Fuses 7. 8. 9.
87V MAX Users Manual 1 3 4 2 6 5 gaq10.emf Figure 11.
Digital Multimeter Service and Parts Table 8. Replacement Parts Description Qty. Fluke Part or Model Number Battery, AA 1.5 V 3 376756 Fuse, 0.
87V MAX Users Manual Screw Holster Battery Door Gasket Battery Door 80BK-A Integrated DMM Temperature Probe Battery AA 1.5 V Fuse Access Door Fuse 11 A, 1000 V, Fast Fuse Cap Quick Reference Guide Safety Information Fuse 0.440 A, 1000 V, Fast gaq111.emf Figure 12.
Digital Multimeter General Specifications General Specifications Maximum voltage between any terminal and earth ground ............................................ 1000 V rms Fuse Protection for mA or μA inputs .......................... 0.44 A, 1000V, IR 10kA Fuse Protection for A inputs ........................................ 11 A, 1000 V, IR 17 kA Display Digital ..........................................................................
87V MAX Users Manual Caution: This equipment is not intended for use in residential environments and may not provide adequate protection to radio reception in such environments. Emissions that exceed the levels required by CISPR 11 can occur when the equipment is connected to a test object. Korea (KCC) ...............................................................
Digital Multimeter Detailed Specifications Detailed Specifications For all detailed specifications: Accuracy is specified for 2 years after calibration, at operating temperatures of 18 °C to 28 °C, with relative humidity at 0 % to 95 %. Accuracy specifications take the form of ±([% of Reading] + [Number of least-significant digits]). For the 4 ½-digit mode, multiply the number of least-significant digits (counts) by 10. AC Voltage AC conversions are ac-coupled and valid from 3 % to 100 % of range.
87V MAX Users Manual DC Voltage, Conductance, and Resistance Function mV dc V dc Ω nS Range Resolution 600.0 mV 0.1 mV 6.000 V 0.001 V 60.00 V 0.01 V 600.0 V 0.1 V 1000 V 1V 600.0 Ω 0.1 Ω 6.000 kΩ 0.001 kΩ Accuracy ±(0.1 % + 1) ±(0.05 % + 1) ±(0.2 % + 2) [2] 60.00 kΩ 0.01 kΩ 600.0 kΩ 0.1 kΩ 6.000 MΩ 0.001 MΩ 50.00 MΩ 0.01 MΩ ±(1.0 % + 1) [1] 60.00 nS 0.01 nS ±(1.0 % + 10) [1,2] ±(0.2 % + 1) [1] Add 0.
Digital Multimeter Detailed Specifications Temperature Range -200 °C to +1090 °C -328 °F to +1994 °F Accuracy [1,2] Resolution 0.1 °C 0.1 °F ±(1.0 % + 10) ±(1.0 % + 18) [1] Does not include error of the thermocouple probe. [2] Accuracy specification assumes ambient temperature stable to ± 1 °C. For ambient temperature changes of ± 5 °C, rated accuracy applies after 2 hours. AC Current Function μA ac mA ac A ac Range Resolution Burden Voltage 600.0 μA 0.
87V MAX Users Manual DC Current Function μA dc mA dc A dc Range Resolution Burden Voltage Accuracy 600.0 μA 0.1 μA 100 μV/μA ±(0.2 % + 4) 6000 μA 1 μA 100 μV/μA ±(0.2 % + 2) 60.00 mA 0.01 mA 1.8 mV/mA ±(0.2 % + 4) 0.1 mA 1.8 mV/mA ±(0.2 % + 2) 0.001 A 0.03 V/A ±(0.2 % + 4) 0.01 A 0.03 V/A ±(0.2 % + 2) 400.0 mA [1] 6.000 A 10.00 A [2,3] Capacitance Range Resolution 10.00 nF 0.01 nF 100.0 nF 0.1 nF 1.000 μF 0.001 μF 10.00 μF 0.01 μF 100.0 μF 0.
Digital Multimeter Detailed Specifications Frequency Range Resolution 199.99 Hz 0.01 Hz 1999.9 Hz 0.1 Hz 19.999 kHz 0.001 kHz 199.99 kHz 0.01 kHz >200 kHz 0.1 kHz Accuracy ±(0.005 % + 1) [1] Unspecified [1] From 0.5 Hz to 200 kHz and for pulse widths >2 μs. Frequency Counter Sensitivity and Trigger Levels Minimum Sensitivity (RMS Sine Wave) Input Range 5 Hz – 20 kHz 0.
87V MAX Users Manual Duty Cycle (Vdc and mVdc) Range 0.0 % to 99.9 Accuracy % [1] Within ± (0.2 % per kHz + 0.1 %) for rise times < 1 μs. [1] 0.5 Hz to 200 kHz, pulse width >2 μs. Pulse width range is determined by the frequency by the frequency of the signal.
Digital Multimeter Detailed Specifications MIN MAX Recording Nominal Response 100 ms to 80 % (dc functions) 120 ms to 80 % (ac functions) Accuracy Specified accuracy ±12 counts for changes >200 ms in duration Specified accuracy ±40 counts for changes >350 ms and inputs >25 % of range Specified accuracy ±100 counts for changes >250 μs in duration 250 μs (peak) [1] (add ±100 counts for readings over 6000 counts) (add ±100 counts for readings in Low Pass mode) [1] For repetitive peaks: 1 ms for single even
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