Fluke 1738 Three-Phase Power Logger

Fits three-phase energy and power quality logging where you need 500+ PQ parameters, dips/swells/inrush with waveform snapshot, harmonics to the 50th, and Fluke Connect co-logging of up to two additional FC parameters.

Key advantages

• 500+ PQ parameters — Three-phase logger with >20 sessions and event waveform snapshots.
• Harmonics to 50th + THD — Voltage/current harmonics for energy and PQ studies.
• 600 V CAT IV / 1000 V CAT III — Included flexible probes; power from measured circuit 100–500 V class.
• Fluke Connect co-log — 1738 co-logs up to two additional FC parameters; Energy Analyze Plus.

Typical applications

• Three-phase energy and power quality logging with event capture.
• Studies that need Fluke Connect co-logging of extra FC sensors.
• Load studies and basic PQ surveys on industrial feeders.

Selection guide

• Instrument type — Three-phase power quality / energy logger.
• Voltage — 1000 V; resolution 0.1 V; accuracy ±(0.2% + 0.01%) at reference conditions.
• Current — Via included 4 flexible probes.
• Safety — 600 V CAT IV / 1000 V CAT III.
• Logging — 500+ PQ parameters; >20 sessions.
• Events — Dips, swells, inrush with waveform snapshot.
• Harmonics — Voltage/current harmonics to 50th; THD.
• Connectivity — Fluke Connect; Energy Analyze Plus.
• Powering — From measured circuit 100–500 V or supply.
• Display — Color touch screen with guided setup.
• Fluke Connect tools — 1738 co-logs up to two additional FC parameters.
• Datasheet — Fluke 1736/1738 Technical Data.

Common mistakes

• Ordering 1736 when you need Fluke Connect co-logging of two extra FC parameters — that feature is listed on 1738.
• Ignoring CAT IV 600 V / CAT III 1000 V limits at the measurement point.
• Assuming probes beyond the included 4 flexible probes without stating CT type on the RFQ.
• Leaving study duration blank when session count (>20) and memory planning matter.
• Confusing voltage accuracy ±(0.2% + 0.01%) reference conditions with field uncertainty under load.

When to RFQ / what to tell us

1. Study type (energy, load, PQ events, harmonics) and system voltage/current ranges.
2. Need for Fluke Connect co-logging of extra FC parameters (1738 feature).
3. Quantity, ship-to, and report/software workflow (Energy Analyze Plus).

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Specs

Documents

• Fluke 1738 datasheet (PDF)

FAQ

Q: 1738 vs 1736? A: Both share the 1736/1738 technical data family; 1738 lists Fluke Connect co-logging of up to two additional FC parameters.

Q: What safety rating is listed? A: 600 V CAT IV / 1000 V CAT III.

Q: What should I send for a quote? A: Study type, ranges, FC co-log need, quantity. Compatible with systems using Fluke 1738 — we do not claim authorized-dealer status.

Links

• Electrical test · Power quality buying guide
• Request a Quote · Get selection help