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> Hybrid / EV Diagnostics > Fluke 1587 FC Insulation Multimeter

1587 on car
Rated CAT IV 600 V / CAT III 1000 V

Fluke 1587 FC Insulation Multimeter

F-1587 FC
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The Fluke 1587 FC insulation resistance tester (megohmmeter), with built-in multimeter, is the industry standard for tracking down high-voltage current leakage on hybrid, plug-in hybrid, and electric vehicles.

Several OEMs specify the use of the Fluke 1587 (now the 15987 FC), which is sensitive enough to detect current leakage that may not yet have set a code or caused an issue. As always, proper use of this essential tool is key. 

The Fluke 1587 FC Insulation Multimeters combine a digital insulation tester with a full-featured, true-rms digital multimeter in a single compact, handheld unit, which provides maximum versatility for both troubleshooting and preventative maintenance.
• The Fluke 1587 FC Insulation Multimeter adds four powerful new diagnostic functions through the Fluke Connect® Measurements app:
• PI/DAR timed ratio tests with TrendIt™ graphs identifies moisture and contaminated insulation problems faster
• Memory storage through Fluke Connect eliminates writing down results, reduces errors and saves data for historical tracking over time
• Temperature Compensation through app for establishing accurate baselines and relevant historical comparisons
• Historical tracking and trending of assets identifies degradation over time, allows real-time decisions to be made in the field with Fluke Connect® Assets

Product highlights
• PI/DAR timed ratio tests
• Live circuit detection prevents insulation test if voltage > 30 V is detected for added user protection
• VFD low-pass filter for accurate motor drive measurements
• Auto-discharge of capacitive voltage for added user protection
• Insulation test (1587 FC: 0.01 MΩ to 2 GΩ)
• Insulation test voltages (1587 FC: 50 V, 100 V, 250 V, 500 V, 1000 V) for many applications
• AC/DC voltage, DC millivolts, AC/DC milliamps, Resistance (Ω), Continuity
• Capacitance, diode test, temperature, Min/Max, frequency (Hz)
• Auto power off to save battery power
• CAT III 1000 V, CAT IV 600 V measurement category
• Large display with backlight
• Rugged, utility hard case allows you to bring everything you need for the job
• Included accessories: Remote probe, test leads and probes, alligator clips, K-type thermocouple
• Accepts optional Fluke TPAK Magnetic Meter Hanger for convenient hands free operation
• Three-year standard warranty; extendable to five-years through product registration within 45 days of purchase

• PI/DAR measurements with TrendIt™ graphs
• Memory storage through Fluke Connect Measurements app
• Temperature Compensation through Fluke Connect Measurements app
• VFD low-pass filter for accurate motor drive measurements
• Insulation test voltages 50 V, 100 V, 250 V, 500 V, 1000 V
• Insulation test: 0.01 MΩ to 2.0 GΩ
• Auto-discharge of capacitive voltage
• Insulation test smoothing reading
• Frequency
• Capacitance
• Diode test
• Temperature
• Min/Max
• AC/DC Voltage
• DC Millivolts
• AC/DC Milliamps
• Resistance (0.1 Ω to 50 MΩ)
• Continuity
• Three-year warranty
• Remote probe, test leads, alligator clips
• K-type thermocouple
• Rugged, utility hard case
• Auto power off

Fluke 1587 on a Toyota








Kit Contents
* 1587 FC Insulation Multimeter
* Remote probe TP165x CAT IV 600 V / CAT III 1000 V
* Test leads TL224 CAT IV 600 V / CAT III 1000 V
* Probes TP74 CAT IV 600 V / CAT III 1000 V
* Alligator clips AC285 CAT IV 600 V / CAT III 1000 V
* K-type thermocouple
* Four AA alkaline batteries
* User Documentation
* Hard case











Detailed specifications for the 1587 FC are listed on

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