Fluke 1587-T Multimeter - Fluke-1587-T

The Fluke 1587-T 50V/100V Telecom Insulation Multimeter is a specialized insulation tester and multimeter combination designed for telecommunications and low-voltage data infrastructure — testing insulation resistance on telephone cables, data cables, DSL lines, and other low-voltage telecom cabling at the low test voltages (50V and 100V DC) that these systems require. Standard 500V or 1000V insulation testers can damage the insulation and connected equipment in telecom and data cabling systems; the 1587-T's lower test voltages are specifically matched to the insulation ratings of telecom cable jacket materials and the connected electronics at cable endpoints.

Key Features

• 50V and 100V Test Voltages, Telecom Rated: Telecom cables (CAT5/6, telephone twisted pair, DSL infrastructure) have insulation rated for operating voltages far below the 500V minimum of standard insulation testers. Applying 500V to these cables risks puncturing the insulation and damaging connected DSLAMs, switches, and CPE. The 1587-T's 50V and 100V test voltages match ANSI/TIA-568 and telecom industry testing specifications for these cable types.
• Insulation Resistance Measurement: Measures insulation resistance between conductors and between conductor and shield/ground, identifying water ingress, damaged jacket, and cross-connects that degrade signal quality and circuit performance.
• Full Multimeter Functions: The combination instrument includes AC/DC voltage, AC/DC current, resistance, continuity, and capacitance measurement for complete telecom cable and circuit diagnostics beyond insulation resistance alone.
• True-RMS Multimeter Measurement: Accurate voltage readings on telecom power circuits including 48V DC central office battery, PoE power injection, and alarm circuit DC voltages typical in telecommunications infrastructure.

Applications

• Telephone cable insulation testing at 50V or 100V per telecom industry specifications
• DSL and data cable insulation fault location on outside plant cable pairs
• Central office cable insulation verification during installation and maintenance
• Low-voltage data infrastructure insulation assessment without equipment damage risk

Fluke 1587-T Calibration

PJi operates an ISO/IEC 17025 Accredited Calibration Lab and provides NIST-traceable calibration for the Fluke 1587-T at the time of purchase, add calibration to your order at checkout. Our calibration documentation satisfies FAA Part 145 tool control requirements, ISO 9001 quality system records, and AS9100 traceability requirements. PJi is the one-stop source: the instrument and the calibration certificate in a single transaction. Calibration-only companies (Custom-Cal, Fox Valley Metrology, ATS) cannot sell you the instrument. Amazon and Grainger cannot calibrate it. PJi does both.

Why Buy from Pilot John International

Pilot John International is an authorized Fluke distributor with specialized expertise serving aviation maintenance, FAA Part 145 repair stations, and industrial MRO facilities. Unlike Amazon, Grainger, or Test Equipment Depot, which sell Fluke instruments but offer zero calibration services, PJi's in-house ISO/IEC 17025 Accredited Calibration Lab calibrates your instrument at purchase. We stock the full Fluke catalog, ship same-business-day on in-stock items, and our technical staff understands the demands of aviation and industrial electrical maintenance.