Key measurements: Automatically capture and log voltage, current, power, harmonics and associated power quality values.
Fluke Connect® compatible*: View data locally on the instrument, via Fluke Connect mobile app and desktop software or through your facilities WiFi infrastructure.
Convenient instrument powering: Power instrument directly from the measured circuit.
Highest safety rating in the industry: 600 V CAT IV/1000 V CAT III rated for use at the service entrance and downstream.
Measure all three phases and neutral: With included 4 flexible current probes.
Comprehensive logging: More than 20 separate logging sessions can be stored on the instruments. In fact, all measured values are automatically logged so you never loose measurement trends. They can even be reviewed during logging sessions and before downloading for real-time analysis.
Capture dips, swells, and inrush currents: Includes event waveform snapshot and high resolution RMS profile, along with date, timestamp and severity to help pinpoint potential root causes of power quality issues.
Power Quality Health Summary: Summarizes the most important power quality health parameters to provide fast insight into overall electrical system health, indicating whether more detailed analysis and reporting should be done.
Bright, color touch screen: Perform convenient in-the-field analysis and data checks with full graphical display.
Optimized user interface: Capture the right data every time with quick, guided, graphical setup and reduce uncertainty about your connections with the intelligent verification function.
Complete “in-the-field" setup through the front panel or Fluke Connect App: No need to return to the workshop for download and setup or to take a computer to the electrical panel.
Fully integrated logging: Connect other Fluke Connect devices to the Fluke 1738 to simultaneously log up to two other measurement parameters, virtually any parameter available on a Fluke Connect wireless digital multimeter.*
Energy Analyze Plus application software: Download and analyze every detail of energy consumption and power quality state of health with our automated reporting.
Specification
| Specifications | |||||
| Accuracy | |||||
| Parameter | Range | Resolution | Intrinsic Accuracy at Reference Conditions (% of Reading +% of Full Scale) | ||
| Voltage | 1000 V | 0.1 V | ±(0.2% + 0.01%) | ||
| Current: Direct input | i17xx-flex 1500 12" | 150 A | 0.1 A | ±(1% + 0.02%) | |
| 1500 A | 1 A | ±(1% + 0.02%) | |||
| i17xx-flex 3000 24" | 300 A | 1 A | ±(1% + 0.03%) | ||
| 3000 A | 10 A | ±(1% + 0.03%) | |||
| i17xx-flex 6000 36" | 600 A | 1 A | ±(1.5% + 0.03%) | ||
| 6000 A | 10 A | ±(1.5% + 0.03%) | |||
| i40s-EL clamp | 4 A | 1 mA | ±(0.7% + 0.02%) | ||
| 40 A | 10 mA | ±(0.7% + 0.02%) | |||
| Frequency | 42.5 Hz to 69 Hz | 0.01 Hz | ±(0.1%) | ||
| Auxillary input | ±10 V dc | 0.1 mV | ±(0.2% + 0.02%) | ||
| Voltage min/max | 1000 V | 0.1 V | ±(1% + 0.1%) | ||
| Current min/max | Defined by accessory | Defined by accessory | ±(5% + 0.2%) | ||
| THD on voltage | 1000% | 0.1% | ±0.5 | ||
| THD on current | 1000% | 0.1% | ±0.5 | ||
| Voltage harmonics 2nd to 50th | 1000 V | 0.1 V | ≥ 10 V: ±5% of reading | ||
| < 10 V: ±0.5V | |||||
| Current harmonics 2nd to 50th | Defined by accessory | Defined by accessory | ≥ 3% of current range: ±5% of reading | ||
| < 3% of current range: ±0.15% of range | |||||
| Unbalance | 100% | 0.1% | ±0.2 | ||
| Intrinsic Uncertainty ±(% of reading +% of range)¹ | |||||
| Parameter | Influence quantity | iFlex1500-12 | iFlex3000-24 | iFlex6000-36 | i40S-EL |
| 150 A / 1500 A | 300 A / 3000 A | 600 A / 6000 A | 4 A / 40 A | ||
| Active Power P | PF ≥ 0.99 | 1.2% + 0.005% | 1.2% + 0.0075% | 1.7% + 0.0075% | 1.2% + 0.005% |
| Active Energy Ea | PF ≥ 0.99 | 1.2% + 0.005% | 1.2% + 0.0075% | 1.7% + 0.0075% | 1.2% + 0.005% |
| Apparent power S | 0 ≤ PF ≤ 1 | 1.2% + 0.005% | 1.2% + 0.0075% | 1.7% + 0.0075% | 1.2% + 0.005% |
| Apparent Energy Eap | 0 ≤ PF ≤ 1 | 1.2% + 0.005% | 1.2% + 0.0075% | 1.7% + 0.0075% | 1.2% + 0.005% |
| Reactive power Q | 0 ≤ PF ≤ 1 | 2.5% of measured apparent power | |||
| Reactive Energy Er | 0 ≤ PF ≤ 1 | 2.5% of measured apparent power | |||
| Power Factor PF | - | ±0.025 | |||
| Displacement Power Factor | - | ±0.025 | |||
| DBF/cosϕ | - | ±0.025 | |||
| Additional uncertainty in% of range¹ | VP-N>250 V | 0.015% | 0.0225% | 0.0225% | 0.015% |
| ¹Range = 1000 V x Irange Reference conditions:
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| Electrical Specifications | |||
| Power Supply | |||
| Voltage range | 100 V to 500 V using safety plug input when powering from the measurement circuit | ||
| 100 V to 240 V using standard power cord (IEC 60320 C7) | |||
| Power consumption | Maximum 50 VA (max. 15 VA when powered using IEC 60320 input) | ||
| Efficiency | ≥ 68.2% (in accordance with energy efficiency regulations) | ||
| Maximum no-load consumption | < 0.3 W only when powered using IEC 60320 input | ||
| Mains power frequency | 50/60 Hz ±15% | ||
| Battery | Li-ion 3.7 V, 9.25 Wh, customer-replaceable | ||
| On-battery runtime | Four hours in standard operating mode, up to 5.5 hours in power saving mode | ||
| Charging time | < 6 hours | ||
| Data Acquisition | |||
| Resolution | 16-bit synchronous sampling | ||
| Sampling frequency | 10.24 kHz at 50/60 Hz, synchronized to mains frequency | ||
| Input signal frequency | 50/60 Hz (42.5 to 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 (2-element delta), 3-φ delta open leg, Currents only (load studies) | ||
| Data storage | Internal flash memory (not user replaceable) | ||
| Memory size | Typical 10 logging sessions of 8 weeks with 1-minute intervals and 500 events¹ | ||
| ¹The number of possible logging sessions and logging period depends on user requirements. | |||
| Basic Interval | |||
| Measured parameters | Voltage, current, aux, frequency, THD V, THD A, power, power factor, fundamental power, DPF, energy | ||
| Averaging interval | User selectable: 1 sec, 5 sec, 10 sec, 30 sec, 1 min, 5 min, 10 min, 15 min, 30 min | ||
| Averaging time min/max values | Voltage, Current: Full cycle RMS updated every half cycle (URMS1/2 according to IEC61000-4-30 Aux, Power: 200ms | ||
| Demand Interval (Energy Meter Mode) | |||
| Measured parameters | Energy (Wh, varh, VAh), PF, maximum demand, cost of energy | ||
| Interval | User selectable: 5 min, 10 min, 15 min, 20 min, 30 min, off | ||
| Power Quality Measurements | |||
| Measured parameter | Voltage, frequency, unbalance, voltage harmonics, THD V, current, harmonics, THD A, TDD | ||
| Averaging interval | 10 min | ||
| Individual harmonics | 2nd to 50th harmonic | ||
| Total harmonic distortion | Calculated on 50 harmonics | ||
| Events | Voltage: dips, swells, interruptions, current: inrush current | ||
| Triggered recordings | Full cycle RMS updated every half cycle of voltage and current (Urms1/2 according to IEC61000-4-30) | ||
| Waveform of voltage and current | |||
| Standards Compliance | |||
| Harmonics | IEC 61000-4-7: Class 1 | ||
| IEEE 519 (short time harmonics) | |||
| Power quality | IEC 61000-4-30 Class S, IEC62586-1 (PQI-S device) | ||
| Power | IEEE 1459 | ||
| Power quality compliance | EN50160 (for measured parameters) | ||
| Interfaces | |||
| USB-A | File transfer via USB flash drive, firmware updates Max. current: 120 mA |
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| WiFi | File transfer and remote control via direct connection or WiFi infrastructure | ||
| Bluetooth | Read auxiliary measurement data from Fluke Connect® 3000 series modules (requires 1738 or 1736 upgrade option) | ||
| USB-mini | Data download device to PC | ||
| Voltage Inputs | |||
| Number of inputs | 4 (3 phases and neutral) | ||
| Maximum input voltage | 1000 Vrms, CF 1.7 | ||
| Input impedance | 10 MΩ | ||
| Bandwidth (-3 dB) | 42.5 Hz - 3.5 kHz | ||
| Scaling | 1:1 and variable | ||
| Measurement category | 1000 V CAT III/600 V CAT IV | ||
| Current Inputs | |||
| Number of inputs | 4, mode selected automatically for attached sensor | ||
| Input voltage | Clamp input: 500 mVrms/50 mVrms; CF 2.8 | ||
| Rogowski coil input | 150 mVrms/15 mVrms at 50 Hz, 180 mVrms/18 mVrms at 60 Hz; CF 4; all at nominal probe range | ||
| Range | 1 A to 150 A/10 A to 1500 A with thin flexible current probe i17XX-flex1500 12" | ||
| 3 A to 300 A/30 A to 3000 A with thin flexible current probe i17XX-flex3000 24" | |||
| 6 A to 600 A/60 A to 6000 A with thin flexible current probe i17XX-flex6000 36" | |||
| 40 mA to 4 A/0.4 A to 40 A with 40 A clamp i40s-EL | |||
| Bandwidth (-3 dB) | 42.5 Hz - 3.5 kHz | ||
| Scaling | 1:1 and variable | ||
| Auxiliary Inputs | |||
| Number of inputs | 2 | ||
| Input range | 0 to ±10 V dc, 1reading/s | ||
| Scale factor (available 2014) | Format: mx + b (gain and offset) user configurable | ||
| Displayed units (available 2014) | User configurable (7 characters, for example, °C, psi, or m/s) | ||
| Wireless Connection | |||
| Number of inputs | 2 | ||
| Supported modules | Fluke Connect® 3000 series | ||
| Acquisition | 1 reading/s | ||
| Environmental Specifications | |||
| Operating temperature | -10 °C to +50 °C (14 °F to 122 °F) | ||
| Storage temperature | -20 °C to +60 °C (-4 °F to 140 °F), with battery: -20 °C to +50 °C (-4 °F to 122 °F) | ||
| Operating humidity | 10 °C to 30 °C (50 °F to 86 °F) max. 95% RH | ||
| 30 °C to 40 °C (86 °F to 104 °F) max. 75% RH | |||
| 40 °C to 50 °C (104 °F to 122 °F) max. 45% RH | |||
| Operating altitude | 2000 m (up to 4000 m derate to 1000 V CAT II/600 V CAT III/300 V CAT IV) | ||
| Storage altitude | 12,000m | ||
| Enclosure | IP50 in accordance with EN60529 | ||
| Vibration | MIL-T-28800E, Type 3, Class III, Style B | ||
| Safety | IEC 61010-1 | ||
| IEC Mains Input: Overvoltage Category II, Pollution Degree 2 | |||
| Voltage Terminals: Overvoltage Category IV, Pollution Degree 2 | |||
| IEC 61010-2-031: CAT IV 600 V / CAT III 1000 V | |||
| Electromagnetic compatibility | EN 61326-1: Industrial CISPR 11: Group 1, Class A | ||
| Korea (KCC): Class A Equipment (industrial broadcasting and communication equipment) | |||
| USA (FCC): 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103 | |||
| Temperature coefficient | 0.1 x accuracy specification/°C | ||
| General Specifications | |||
| Color LCD display | 4.3-inch active matrix TFT, 480 pixels x 272 pixels, resistive touch panel | ||
| Warranty | Instrument and power supply: Two-years (battery not included) | ||
| Accessories: one-year | |||
| Calibration cycle: two-years | |||
| Dimensions | Instrument: 19.8 cm x 16.7 cm x 5.5 cm (7.8 in x 6.6 in x 2.2 in) | ||
| Power supply: 13.0 cm x 13.0 cm x 4.5 cm (5.1 in x 5.1 in x 1.8 in) | |||
| Instrument with power supply attached: 19.8 cm x 16.7 cm x 9 cm (7.8 in x 6.6 in x 3.5 in) | |||
| Weight | Instrument: 1.1 kg (2.5 lb) | ||
| Power supply: 400 g (0.9 lb) | |||
| Tamper protection | Kensington lock slot | ||
| i17xx-flex 1500 12" Flexible Current Probe Specifications | |||
| Measuring range | 1 to 150 A ac/10 to 1500 A ac | ||
| Nondestructive current | 100 kA (50/60 Hz) | ||
| Intrinsic error at reference condition* | ±0.7% of reading | ||
| Accuracy 173x + iFlex | ±(1% of reading + 0.02% of range) | ||
| Temperature coefficient over operating temperature range | 0.05% of reading/°C 0.09% of reading/°F | ||
| Working voltage | 1000 V CAT III, 600 V CAT IV | ||
| Probe cable length | 305 mm (12 in) | ||
| Probe cable diameter | 7.5 mm (0.3 in) | ||
| Minimum bending radius | 38 mm (1.5 in) | ||
| Output cable length | 2 m (6.6 ft) | ||
| Weight | 115 g | ||
| Probe cable material | TPR | ||
| Coupling material | POM + ABS/PC | ||
| Output cable | TPR/PVC | ||
| Operating temperature | -20 °C to +70 °C (-4 °F to 158 °F) temperature of conductor under test shall not exceed 80 °C (176 °F) | ||
| Temperature, non-operating | -40 °C to +80 °C (-40 °F to 176 °F) | ||
| Relative humidity, operating | 15% to 85% non-condensing | ||
| IP rating | IEC 60529:IP50 | ||
| Warranty | One-year | ||