Perfect for electrical technicians, contractors, and energy savings consultants, this three-phase logger automatically captures and logs over 500 power quality parameters. Additionally, it features Fluke Connect, which allows you to share data remotely with your team and includes current probes and a one-year Premium Care plan.
Perfect for electrical technicians, contractors, and energy savings consultants, this three-phase logger automatically captures and logs over 500 power quality parameters. Additionally, it features Fluke Connect, which allows you to share data remotely with your team and includes current probes and a one-year Premium Care plan.
Features
More visibility, reduced uncertainty and better quality and energy consumption decisions
Built with Fluke Connect® mobile app and desktop software compatibility give you the data you need to make critical power quality and energy decisions in real-time. The ideal test tools for conducting energy studies and basic power quality logging, the 1736 and 1738 automatically capture and log over 500 power quality parameters so you have more visibility into the data you need to optimize system reliability and savings.
An optimized user interface, flexible current probes, and an intelligent measurement verification function that allows you to reduce measurement errors by digitally verifying and correcting common connection errors makes setup easier than ever and reduces measurement uncertainty. Access and share data remotely with your team via the Fluke Connect® app so you can maintain safer working distances and make critical decisions in real-time, reducing the need for protective equipment, site visits and check-ins. You can also quickly and easily chart and graph measurements to help identify issues and create detailed reports with the included Fluke Energy Analyze Plus software package.
Log the most common parameters
Designed to measure the most critical threephase power parameters, the 1736 and 1738 can simultaneously log rms voltage, rms current, voltage and current events, voltage and current THD, voltage and current harmonics up to the 50th harmonic, active power, reactive power, power factor, active energy, reactive energy, and more. With enough memory for more than a year of data logging, the 1736 and 1738 can uncover intermittent or hard-to-find issues that might otherwise have been missed.
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.
Applications
Easy to use
The four current probes are connected separately; the instrument automatically detects and scales the probes. The thin current probes are designed to easily get through tight conductor spacing and are easily set to 150 or 1500 A for high accuracy in nearly any application. An innovative tangle-free flat voltage lead makes connection simple and reliable and the instrument's intelligent ‘Verify Connection' feature automatically checks to make sure the instrument is connected correctly and can digitally correct common connection issues without having to disconnect measurement leads.
The detachable power supply can be conveniently and safely powered directly from the measured circuit—no more searching for power outlets or having to run multiple extension cords to the logging location.
Data downloading couldn't be easier or more flexible
Analysis and reporting
Capturing logged data is just one part of the task. Once you have the data, you need to create useful information and reports that can be easily shared and understood by your organization or customers. Fluke Energy Analyze Plus software makes that task as simple as possible. With powerful analysis tools and the ability to create customized reports in minutes you'll be able to communicate your findings and quickly solve problems so you can optimize system reliability and savings.
Reduce unplanned expenses and get the most out of your tools
When you invest in quality equipment to get your jobs done, you want your money to go as far as possible.
Fluke Premium Care provides coverage above and beyond your tool's original product warranty, so you don't need to worry about unexpected downtime caused by damaged test equipment, accessories, or tools in need of calibration or repair. It's easy too! You'll receive your product with the information and register. That's it, you're covered!
Load studies: verify electrical system capacity before adding loads
Energy assessments: quantify energy consumption before, and after improvements, to justify energy saving devices
Conduct multiple studies with one instrument; download while studies are in progress via USB stick or Fluke Connect mobile app.
Suitable for NEC 220 load studies
Harmonics measurements: uncover harmonic issues that can damage or disrupt critical equipment
Discover the source of voltage and current distortion that may be affecting your equipment
Voltage and current events capture: monitor for dips, swells and inrush currents that cause false resets or nuisance circuit breaker tripping
Capture voltage events and inrush currents with pre-defined thresholds
Log the most common parameters
Designed to measure the most critical three phase power parameters, this energy logger can simultaneously log rms voltage, rms current, voltage and current events, voltage and current THD, voltage and current harmonics up to the 50th harmonic, active power, reactive power, power factor, active energy, reactive energy, and more. With enough memory for more than a year of data logging, this 3-phase energy logger can uncover intermittent or hard-to-find issues that might otherwise have been missed.
Simple setup means all available measured parameters are automatically selected during logging so you can be sure you have the data you need, even before you know you need it
Accuracy | |
Voltage | Range: 1000 V Maximum resolution: 0.1 V Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(0.2% + 0.01%) |
Current (i17xx-flex 1500 12") | Range: 150 , 1500 A Resolution: 0.1, 1 A Intrinsic accuracy at reference conditions: ±(1% + 0.02%), ±(1% + 0.02%) |
Frequency | Range: 42.5 to 69 Hz Maximum resolution: 0.01 Hz Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(0.1%) |
Aux Input | Range: ±10 V DC Maximum resolution: 0.1 mV Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(0.2% + 0.02%) |
Voltage Minimum/Maximum | Range: 1000 V Maximum resolution: 0.1 V Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(1% + 0.1%) |
Current Minimum/Maximum | Range: Defined by accessory Maximum resolution: Defined by accessory Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(5% + 0.2%) |
THD on Voltage | Range: 1000% Maximum resolution: 0.1% Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±0.5 |
THD on Current | Range: 1000% Maximum resolution: 0.1% Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±0.5 |
Voltage Harmonics 2nd...50th | Range: 1000 V Maximum resolution: 0.1 V Intrinsic accuracy at reference conditions (% of reading + % of full scale): ≥10 V: ±5% of reading, <10 V: ±0.5 V |
Current Harmonics 2nd ...50th | Range: Defined by accessory Maximum resolution: Defined by accessory Intrinsic accuracy at reference conditions (% of reading + % of full scale): ≥3% of current range: ±5% of reading, <3% of current range: ±0.15% of range |
Unbalance | Range: 100% Maximum resolution: 0.1% Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±0.2 |
Power Supply | |
Voltage Range | 100 to 500 V using safety plug input when powering from the measurement circuit 100 to 240 V using standard power cord (IEC 60320 C7) |
Power Consumption | Maximum 50 VA (maximum 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-ø, 1-ø IT, split phase, 3-ø delta, 3-ø wye, 3-ø wye IT, 3-ø wye balanced, 3-ø Aron/Blondel (2-element delta), 3-ø 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 events |
Basic Interval | |
Measured Parameters | Voltage, current, aux, frequency, THD V, THD A, power, power factor, fundamental power, DPF, energy |
Averaging Interval | User selectable: 1, 5, 10, and 30 seconds and 1, 5, 10, 15, and 30 minutes |
Averaging Time Minimum/Maximum Values | Voltage, Current: Full cycle RMS updated every half cycle (URMS1/2 according to IEC61000-4-30) Aux, Power: 200 ms |
Demand Interval (Energy Meter Mode) | |
Measured Parameters | Energy (Wh, varh, VAh), PF, maximum demand, cost of energy |
Interval | User selectable: 5, 10, 15, 20, and 30 minutes, off |
Power Quality Measurements | |
Measured Parameter | Voltage, frequency, unbalance, voltage harmonics, THD V, current, harmonics, THD A, TDD |
Averaging Interval | 10 minutes |
Individual Harmonics | 2nd ...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. supply current: 120 mA |
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 | 42.5 Hz to 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: 500/50 mVrms; CF 2.8 |
Rogowski Coil Input | 150/15 mVrms at 50 Hz, 180/18 mVrms at 60 Hz; CF 4; all at nominal probe range |
Range | 1 to 150/10 A to 1500 A with thin flexible current probe i17XX-flex1500 12" 3 to 300/30 A to 3000 A with thin flexible current probe i17XX-flex3000 24" 6 to 600/60 A to 6000 A with thin flexible current probe i17XX-flex6000 36" 40 mA to 4/0.4 A to 40 A with 40 A clamp i40s-EL |
Bandwidth | 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, 1 reading/s |
Scale Factor | Format: mx + b (gain and offset) user configurable |
Displayed Units | 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 | 14 to 122°F (-10 to 50°C) |
Storage Temperature | −4 to 140°F (-20 to 60°C) With battery: −4 to 122°F (-20 to 50°C) |
Operating Humidity | 50 to 86°F (10 to 30°C) maximum 95% RH 86 to 104°F (30 to 40°C) maximum 75% RH 104 to 122°F (40 to 50°C) maximum 45% RH |
Operating Altitude | 6561.68' (2000 m) (up to 13123.36' (4000 m) derate to 1000 V CAT II/600 V CAT III/300 V CAT IV) |
Storage Altitude | 39,370.079' (12,000 m) |
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 (EMC) | 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" (109.22 mm) active matrix TFT, 480 x 272 pixels, resistive touch panel |
Tamper Protection | Kensington lock slot |
Dimensions | Instrument: 7.8 x 6.6 x 2.2" (19.8 x 16.7 x 5.5 cm) Power supply: 5.1 x 5.1 x 1.8" (13.0 x 13.0 x 4.5 cm) Instrument with power supply attached: 7.8 x 6.6 x 3.5" (19.8 x 16.7 x 9 cm) |
Weight | Instrument: 2.5 lbs (1.1 kg) Power supply: 0.9 lbs (400 g) |
Fluke engineers have delivered an innovative mobile platform and tool that helps solve everyday problems, allowing you to instantly document measurements, retrieve historical data, and share live measurements with your team. All handled by the Android™ or iOS smart phone you already carry.
Fluke Connect with ShareLive™ video call is the only wireless measurement system that lets you stay in contact with your entire team without leaving the field. The Fluke Connect mobile app is works with over 20 different Fluke products - the largest suite of connected test tools in the world.
Make the best decisions faster than ever before by viewing temperature, mechanical, electrical and vibration measurements for each equipment asset in one place. Get started saving time and increasing your productivity.
Click on a category to view a selection of compatible accessories with the Fluke 1736/FPC Three-Phase Energy Logger with one-year Premium Care and current probes.
Load studies: verify electrical system capacity before adding loads
Energy assessments: quantify energy consumption before, and after improvements, to justify energy saving devices
Conduct multiple studies with one instrument; download while studies are in progress via USB stick or Fluke Connect mobile app.
Suitable for NEC 220 load studies
Harmonics measurements: uncover harmonic issues that can damage or disrupt critical equipment
Discover the source of voltage and current distortion that may be affecting your equipment
Voltage and current events capture: monitor for dips, swells and inrush currents that cause false resets or nuisance circuit breaker tripping
Capture voltage events and inrush currents with pre-defined thresholds
Log the most common parameters
Designed to measure the most critical three phase power parameters, this energy logger can simultaneously log rms voltage, rms current, voltage and current events, voltage and current THD, voltage and current harmonics up to the 50th harmonic, active power, reactive power, power factor, active energy, reactive energy, and more. With enough memory for more than a year of data logging, this 3-phase energy logger can uncover intermittent or hard-to-find issues that might otherwise have been missed.
Simple setup means all available measured parameters are automatically selected during logging so you can be sure you have the data you need, even before you know you need it
Accuracy | |
Voltage | Range: 1000 V Maximum resolution: 0.1 V Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(0.2% + 0.01%) |
Current (i17xx-flex 1500 12") | Range: 150 , 1500 A Resolution: 0.1, 1 A Intrinsic accuracy at reference conditions: ±(1% + 0.02%), ±(1% + 0.02%) |
Frequency | Range: 42.5 to 69 Hz Maximum resolution: 0.01 Hz Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(0.1%) |
Aux Input | Range: ±10 V DC Maximum resolution: 0.1 mV Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(0.2% + 0.02%) |
Voltage Minimum/Maximum | Range: 1000 V Maximum resolution: 0.1 V Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(1% + 0.1%) |
Current Minimum/Maximum | Range: Defined by accessory Maximum resolution: Defined by accessory Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±(5% + 0.2%) |
THD on Voltage | Range: 1000% Maximum resolution: 0.1% Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±0.5 |
THD on Current | Range: 1000% Maximum resolution: 0.1% Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±0.5 |
Voltage Harmonics 2nd...50th | Range: 1000 V Maximum resolution: 0.1 V Intrinsic accuracy at reference conditions (% of reading + % of full scale): ≥10 V: ±5% of reading, <10 V: ±0.5 V |
Current Harmonics 2nd ...50th | Range: Defined by accessory Maximum resolution: Defined by accessory Intrinsic accuracy at reference conditions (% of reading + % of full scale): ≥3% of current range: ±5% of reading, <3% of current range: ±0.15% of range |
Unbalance | Range: 100% Maximum resolution: 0.1% Intrinsic accuracy at reference conditions (% of reading + % of full scale): ±0.2 |
Power Supply | |
Voltage Range | 100 to 500 V using safety plug input when powering from the measurement circuit 100 to 240 V using standard power cord (IEC 60320 C7) |
Power Consumption | Maximum 50 VA (maximum 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-ø, 1-ø IT, split phase, 3-ø delta, 3-ø wye, 3-ø wye IT, 3-ø wye balanced, 3-ø Aron/Blondel (2-element delta), 3-ø 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 events |
Basic Interval | |
Measured Parameters | Voltage, current, aux, frequency, THD V, THD A, power, power factor, fundamental power, DPF, energy |
Averaging Interval | User selectable: 1, 5, 10, and 30 seconds and 1, 5, 10, 15, and 30 minutes |
Averaging Time Minimum/Maximum Values | Voltage, Current: Full cycle RMS updated every half cycle (URMS1/2 according to IEC61000-4-30) Aux, Power: 200 ms |
Demand Interval (Energy Meter Mode) | |
Measured Parameters | Energy (Wh, varh, VAh), PF, maximum demand, cost of energy |
Interval | User selectable: 5, 10, 15, 20, and 30 minutes, off |
Power Quality Measurements | |
Measured Parameter | Voltage, frequency, unbalance, voltage harmonics, THD V, current, harmonics, THD A, TDD |
Averaging Interval | 10 minutes |
Individual Harmonics | 2nd ...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. supply current: 120 mA |
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 | 42.5 Hz to 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: 500/50 mVrms; CF 2.8 |
Rogowski Coil Input | 150/15 mVrms at 50 Hz, 180/18 mVrms at 60 Hz; CF 4; all at nominal probe range |
Range | 1 to 150/10 A to 1500 A with thin flexible current probe i17XX-flex1500 12" 3 to 300/30 A to 3000 A with thin flexible current probe i17XX-flex3000 24" 6 to 600/60 A to 6000 A with thin flexible current probe i17XX-flex6000 36" 40 mA to 4/0.4 A to 40 A with 40 A clamp i40s-EL |
Bandwidth | 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, 1 reading/s |
Scale Factor | Format: mx + b (gain and offset) user configurable |
Displayed Units | 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 | 14 to 122°F (-10 to 50°C) |
Storage Temperature | −4 to 140°F (-20 to 60°C) With battery: −4 to 122°F (-20 to 50°C) |
Operating Humidity | 50 to 86°F (10 to 30°C) maximum 95% RH 86 to 104°F (30 to 40°C) maximum 75% RH 104 to 122°F (40 to 50°C) maximum 45% RH |
Operating Altitude | 6561.68' (2000 m) (up to 13123.36' (4000 m) derate to 1000 V CAT II/600 V CAT III/300 V CAT IV) |
Storage Altitude | 39,370.079' (12,000 m) |
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 (EMC) | 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" (109.22 mm) active matrix TFT, 480 x 272 pixels, resistive touch panel |
Tamper Protection | Kensington lock slot |
Dimensions | Instrument: 7.8 x 6.6 x 2.2" (19.8 x 16.7 x 5.5 cm) Power supply: 5.1 x 5.1 x 1.8" (13.0 x 13.0 x 4.5 cm) Instrument with power supply attached: 7.8 x 6.6 x 3.5" (19.8 x 16.7 x 9 cm) |
Weight | Instrument: 2.5 lbs (1.1 kg) Power supply: 0.9 lbs (400 g) |
Fluke engineers have delivered an innovative mobile platform and tool that helps solve everyday problems, allowing you to instantly document measurements, retrieve historical data, and share live measurements with your team. All handled by the Android™ or iOS smart phone you already carry.
Fluke Connect with ShareLive™ video call is the only wireless measurement system that lets you stay in contact with your entire team without leaving the field. The Fluke Connect mobile app is works with over 20 different Fluke products - the largest suite of connected test tools in the world.
Make the best decisions faster than ever before by viewing temperature, mechanical, electrical and vibration measurements for each equipment asset in one place. Get started saving time and increasing your productivity.
Click on a category to view a selection of compatible accessories with the Fluke 1736/FPC Three-Phase Energy Logger with one-year Premium Care and current probes.