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Product Code: INDM-038
MPN #: 4706566
Finding out why a three-phase system uses more energy than expected can be hard. Un-checked power waste raises electricity bills and can hide equipment problems. If you cannot see voltage, current, power factor or energy use over time, you may miss early warnings. The Fluke 1732/B (4706566) Energy Logger gives you a clear picture of every phase, stores data for weeks and lets you act before a small issue becomes a costly failure.
You need a tool that records real-time power data without a lot of setup. This logger is a portable, battery-operated device that measures up to 1000 V on three phases and shows the results on a bright 4.3-inch color touch screen. It is built for electricians, plant engineers and energy auditors who must prove compliance, track energy use or troubleshoot a motor. With Flukes trusted safety ratings, you can work on CAT III and CAT IV circuits with confidence.
| General | |
| Display | 4.3-inch active matrix TFT, 480 × 272 px, resistive touch panel |
| Dimensions (instrument) | 19.8 × 16.7 × 5.5 cm (7.8 × 6.6 × 2.2 in) |
| Dimensions (with PSU attached) | 19.8 × 16.7 × 9.0 cm (7.8 × 6.6 × 3.5 in) |
| Weight (instrument) | 1.1 kg (2.5 lb) |
| Weight (power supply) | 400 g (0.9 lb) |
| Enclosure | IP50 (EN 60529) |
| Safety rating | CAT IV 600 V / CAT III 1000 V (IEC 61010-2-031) |
| Pollution degree | 2 |
| EMC | EN 61326-1 Industrial · CISPR 11 Group 1 Class A · FCC 47 CFR 15 Subpart B |
| Vibration | MIL-T-28800E Type 3, Class III, Style B |
| Warranty (instrument) | 2 years (battery not included) |
| Warranty (accessories) | 1 year |
| Calibration cycle | 2 years |
| Tamper protection | Kensington lock slot |
| WiFi / Bluetooth | Not included on 1732/B (optional upgrade) |
| Power supply | |
| Voltage range (measurement circuit) | 100–500 V (safety plug input) |
| Voltage range (power cord) | 100–240 V AC (IEC 60320 C7) |
| Maximum power consumption | 50 VA (max. 15 VA via IEC 60320 input) |
| Efficiency | ≥68.2% |
| No-load power consumption | <0.3 W |
| Mains frequency | 50/60 Hz ±15% |
| Battery | Li-ion 3.7 V, 9.25 Wh, customer-replaceable |
| Battery runtime | 4 hours (standard), up to 5.5 hours (power saving) |
| Charging time | <6 hours |
| Voltage inputs | |
| Number of inputs | 4 (3 phases + neutral) |
| Maximum input voltage | 1000 V rms, CF 1.7 |
| Input impedance | 10 MΩ |
| Bandwidth (-3 dB) | 42.5 Hz to 3.5 kHz |
| Scaling | 1:1 and variable (potential transformers) |
| Current inputs | |
| Number of inputs | 3 (auto-selected for attached sensor) |
| iFlex 1500 A probe | 1–150 A / 10–1500 A |
| iFlex 3000 A probe | 3–300 A / 30–3000 A |
| iFlex 6000 A probe | 6–600 A / 60–6000 A |
| i40s-EL clamp | 40 mA–4 A / 0.4–40 A |
| Clamp input voltage | 500 mV rms / 50 mV rms, CF 2.8 |
| Rogowski input voltage | 150/15 mV rms @ 50 Hz · 180/18 mV rms @ 60 Hz, CF 4 |
| Bandwidth (-3 dB) | 42.5 Hz to 3.5 kHz |
| Scaling | 1:1 and variable |
| Auxiliary inputs | |
| Number of inputs | 2 |
| Input range | 0 to ±10 V DC |
| Sampling rate | 1 reading/s |
| Scale factor | mx + b (user configurable gain and offset) |
| Displayed units | User configurable (7 characters) |
| Data acquisition | |
| Resolution | 16-bit synchronous sampling |
| Sampling frequency | 10.24 kHz at 50/60 Hz |
| Input signal frequency | 50/60 Hz (42.5–69 Hz) |
| Circuit types |
1-φ, 1-φ IT, Split phase, 3-φ Delta, 3-φ Wye, 3-φ Wye IT, 3-φ Wye balanced, 3-φ Aron/Blondel, 3-φ Delta open leg, Currents only |
| Data storage | Internal flash memory (not user replaceable) |
| Memory capacity | Typical 10 logging sessions of 8 weeks at 1-minute intervals + 500 events |
| Averaging interval | 1 s, 5 s, 10 s, 30 s, 1 min, 5 min, 10 min, 15 min, 30 min |
| Standards compliance | IEEE 1459 (Power) |
| Logged parameters | |
| Parameters |
Voltage, Current, Auxiliary, Frequency, THD V, THD A, Active Power, Reactive Power, Power Factor, Fundamental Power, DPF, Energy (Wh, varh, VAh) |
| Demand interval options | 5, 10, 15, 20, 30 min or Off |
| Demand parameters | Energy (Wh, varh, VAh), PF, Maximum Demand, Cost of Energy |
| Interfaces | |
| USB-A | USB flash drive file transfer, firmware updates (max. 120 mA) |
| USB-mini | Data download to PC |
| WiFi | Optional (included on 1734 only) |
| Bluetooth | Optional upgrade for Fluke Connect 3000 series modules |
| Environmental | |
| Operating temperature | -10 °C to +50 °C (14 °F to 122 °F) |
| Storage temperature | -20 °C to +60 °C (with battery: -20 °C to +50 °C) |
| Operating humidity | ≤95% RH (10–30 °C), ≤75% RH (30–40 °C), ≤45% RH (40–50 °C) |
| Operating altitude | 2000 m (1000 V CAT II derated to 4000 m) |
| Storage altitude | 12,000 m |
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