Fluke 1587 FC Insulation Multimeter

Fits field insulation and basic electrical troubleshooting when you need selectable megohm test voltages plus a True-RMS DMM in one handheld, with Fluke Connect logging — not a fixed-panel insulation monitor.

Key advantages

• Insulation + DMM — Megohm tests 0.01 MΩ–2 GΩ at 50/100/250/500/1000 V plus True-RMS DMM functions in one handheld.
• CAT III 1000 V / CAT IV 600 V — IEC 61010 category marks for industrial distribution work.
• Live-circuit inhibit — Insulation test blocked if >30 V is present.
• Fluke Connect — Wireless PI/DAR, memory, and temperature-compensation workflows via the app.

Typical applications

• Motor and cable insulation checks with selectable test voltages.
• Field troubleshooting that needs insulation plus voltage/mA/ohms/capacitance/temperature in one tool.
• Teams documenting insulation trends over Fluke Connect.

Selection guide

• Insulation range / test voltages — 0.01 MΩ–2 GΩ at 50 / 100 / 250 / 500 / 1000 V. Match test voltage to the insulation class under test.
• DMM ranges — Voltage to 1000 V AC/DC; mA to 400 mA; ohms to 50 MΩ; capacitance to 9999 μF; temperature −40…537 °C.
• Accuracy — Insulation typically ±(1.5% + 5) to ±(3% + 5) depending on test voltage/range; DMM V DC ±(0.09% + 2).
• Safety category — CAT III 1000 V / CAT IV 600 V (IEC 61010-1, IEC 61010-2-033).
• Live-circuit inhibit — Insulation test inhibited if >30 V present.
• Communication — Fluke Connect wireless (PI/DAR, memory, temperature compensation via app); FCC T68-FBLE.
• Supply — Four AA batteries (IEC LR6).
• IP / ambient — IP40 (IEC 60529, non-operating); operating −20…+55 °C; storage −40…+60 °C.
• Size / weight — 5.0×10.0×20.3 cm; 550 g.

Common mistakes

• Using a low test voltage (50/100 V) on equipment that needs 500/1000 V insulation stress — pick voltage from the insulation class, not habit.
• Expecting IP40 to cover outdoor wet use — rating is non-operating per IEC 60529; plan enclosure/handling accordingly.
• Ignoring live-circuit inhibit: if >30 V is present, insulation test will not run until the circuit is clear.
• Treating Fluke Connect features (PI/DAR, temp compensation) as available without the app/wireless path confirmed on site.
• Assuming CAT III 1000 V / CAT IV 600 V covers every panel bus — verify the measurement location against the category.

When to RFQ / what to tell us

1. Primary use: insulation test voltages needed vs DMM-only work.
2. Typical circuits (voltage class) and whether CAT III 1000 V / CAT IV 600 V is sufficient.
3. Need for Fluke Connect / PI-DAR logging yes/no.
4. Temperature measurement requirement (−40…537 °C range on unit).
5. Quantity, ship-to country, and any required marks (IEC 61010, FCC) to match site policy.

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Specs

Documents

• Fluke 1587 FC datasheet (PDF)
• Fluke 1587 FC datasheet (PDF)

FAQ

Q: Insulation tester or full DMM — what does 1587 FC cover? A: Both in one handheld: insulation 0.01 MΩ–2 GΩ at 50–1000 V test voltages, plus DMM functions to 1000 V AC/DC, mA, ohms, capacitance, and temperature. State which functions you will use daily in the RFQ.

Q: Will it test insulation on a live circuit? A: No — live-circuit detection inhibits the insulation test if >30 V is present. De-energize and verify before megohm testing.

Q: Which safety marks apply? A: Datasheet lists CAT III 1000 V, CAT IV 600 V, IEC 61010-1, IEC 61010-2-033, and FCC T68-FBLE. Match the measurement location to the category before use.

Q: What should I send for a quote? A: Required test voltages, CAT needs, Fluke Connect yes/no, quantity, ship-to. Compatible with systems using Fluke 1587 FC if you need a drop-in check — we do not claim authorized-dealer status.

Links

• Test & measurement instruments · Test & measurement buying guide
• Request a Quote · Get selection help