Fluke 1736 and 1738 Three-Phase Power Quality Loggers
Fluke 1736 and 1738 Three-Phase Power Quality Loggers is rated out of 5 by 3.
Key features
- Versatile, three-phase power loggers for conducting energy, load and power quality studies.
- Automatically capture and log voltage, current, power, harmonics and associated power quality values, and capture dips, swells, and inrush currents with event waveform snapshots and high-resolution RMS profiles.
- Convenient instrument powering directly from the measured circuit
- Download and analyze every detail of energy consumption and power quality state of health with our automated reporting.
Product overview: Fluke 1736 and 1738 Three-Phase Power Quality Loggers
The Fluke 1736 and 1738 Three-Phase Power Loggers 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. With the Fluke 1738 Advanced Power Logger you can perform advanced analysis with an enhanced Power Quality Health Summary (EN50160) function that provides you with fast insight into overall electrical system health. The Power Quality Health Summary is an evaluation of the logged data based on detailed power quality measurements and includes viewable event waveform captures so you have even more visibility into the data you need to optimize system reliability and savings.
Get the Fluke Guide to Choosing Power Quality Tools
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. Optionally, you can create IEEE519 Reports giving you more insight into harmonic levels, voltage and current distortion, and load current (license required).
Other useful features
- Present data locally on the logger, on the Fluke Connect mobile app and desktop software, or through your facility’s Wi-Fi infrastructure
- Measure all three phases and neutral with four flexible current probes (included)
- Power the instrument directly from the measured circuit
- Review measured values during logging sessions and before downloading for real-time analysis
- Includes event waveform snapshot and high-resolution RMS profile with the 1738, along with date, timestamp and severity to capture dips, swells, and inrush currents and help pinpoint potential root causes of power quality issues
- 1738 also provides fast insight into overall electrical system health with a Power Quality Health Summary
- Offers a bright, color touch-screen display for convenient field analysis and data checks
- Helps you capture the right data every time with a quick, guided, graphical user interface
- Reduces uncertainty about your connections with the intelligent verification function
- Allows you to complete field setups through the front panel or the Fluke Connect App on your smartphone
- Provides fully integrated logging with other Fluke Connect-enabled devices to simultaneously log up to two additional measurement parameters on a Fluke Connect wireless digital multimeter or module*
- Comes with Energy Analyze Plus application software that enables you to analyze every detail of energy consumption and power quality health and create automated reports
Log the most common parameters
Designed to measure the most critical three phase 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.
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.
What's in the box:
- 1738 Power Logger
- Power supply
- Voltage test leads
- Alligator clips (4x)
- Soft case
- Energy Analyze Plus software
- Magnetic hanging strap
- Magnetic voltage probes (x4)
- Line cords
- Color coding set
Specifications: Fluke 1736 and 1738 Three-Phase Power Quality Loggers
| 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:
| |||||
| 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 (1738) | |
| 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 |
| 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 | 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 | -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 |
* Reference condition:
| |
Models: Fluke 1736 and 1738 Three-Phase Power Quality Loggers
Fluke 1738/B
Fluke 1738/B Advanced Power Logger, Basic version (excludes current probes)
Includes:
- 1738 Power Logger
- Power supply
- Voltage test leads
- Alligator clips (4x)
- Soft case
- Energy Analyze Plus software
- Magnetic hanging strap
- Magnetic voltage probes (x4)
- Line cords
- Color coding set
Fluke 1738/EUS
Fluke 1738/EUS Advanced Power Logger, EU and US version (includes current probes)
Includes:
- 1738 Power Logger
- Power supply
- Voltage test leads
- Alligator clips (x4)
- 12 in 1,500A flexible current probe (x4)
- Soft case
- Energy Analyze Plus software
- Magnetic hanging strap
- Magnetic voltage probes (x4)
- WiFi/BLE adapter
- Line cords
- Color coding set
Fluke 1738/INTL
Fluke 1738/INTL Advanced Power Logger
Portable Advanced Power Logger International Version
Includes:
- Fluke 1738 instrument
- Voltage test leads set
- Alligator clips (4x)
- 12 in 1,500A flexible, current probe (4x)
- Soft case
- Energy Analyze Plus software
- Line cords
- Color coding set
Fluke 1736/B
Fluke 1736/B Portable Power Logger, Basic version (excludes current probes)
Includes:
- 1736 Power Logger
- Power supply
- Voltage test leads
- Alligator clips (x4)
- Soft case
- Energy Analyze Plus software
- Line cords
- Color coding set
Fluke 1736/EUS
Fluke 1736/EUS Portable Power Logger, EU and US version (includes current probes)
Includes:
- 1736 Power Logger
- Power supply
- Voltage test leads
- Alligator clips (x4)
- 12 in 1,500A flexible, current probe (x4)
- Soft case
- Energy Analyze Plus software
- Wi-Fi/BLE adapter
- Line cords
- Color coding set
Fluke 1736/INTL
Fluke 1736/INTL Power Logger
Portable Power Logger International Version
Includes:
- Fluke 1736 instrument
- Voltage test leads set
- Alligator clips (4x)
- 12 in 1,500A flexible, current probe (4x)
- Soft case
- Energy Analyze Plus software
- Line cords
- Color coding set
Can you use a Fluke 1738 with i40s-EL clamps to diagnose an earth leakage fault?
The Fluke-1738 works with the i40s-EL but the real question is how high and or low of current is expected for the application. The range the i40s-EL working in conjunction with the Fluke-1738 is from 40mA to 40A. The leakage current clamp meter we offer is the Fluke-368 FC and its range is from 1uA up to 60A. No, the Fluke-1738 and i40s-EL do not have the range to support an Earth Leakage Fault application.
Date published: 2024-06-11
I need to replace an old computer that was being used to view, and create reports from, our 1738 data logger files. What is the minimum computer requirements for doing this?
Please contact Fluke's tech support team at tech.support@fluke.com or 800-443-5853 to verify the minimum computer requirements for the Fluke 1736 and 1738 Three-Phase Power Quality Loggers.
Date published: 2024-04-17
Does the 1738 Power Quality Logger measure flicker? The specifications mention the 50160 and IEC 61000-4-30 standards which both include flicker measurements and limits, but the manual for the 1738 doesn't mention flicker, i.e. measuring Pst and Plt.
The Fluke-1738 is IEC 61000-4-30 Class S and it does not include Flicker measurement. The Flicker parameters are covered for IEC 61000-4-30 Class A instruments. Instruments that do have that feature include the Fluke 1748, 1775 and 1777.
Date published: 2024-03-28
When events such as sags, swells and interruptions are captured by the 1738, is the waveform during the event also stored? If so, how is it accessed? If it is not, what model would perform this function?
For questions about detailed operation of your Fluke products, please contact Fluke's tech support team at tech.support@fluke.com or 800-443-5853.
Date published: 2024-03-19
When I try to download file into fluke energy analyze plus 3.11 i get a "PQT translator tool not found error"
Please contact Fluke's tech support team at tech.support@fluke.com or 800-443-5853.
Date published: 2024-03-28
Which is the latest model of Power Quality Analyser, the Fluke 1738 or the fluke 435-II?
The Fluke 1738 is newer than the Fluke 435-II.
Date published: 2023-10-18
Will this device function without the WIFI/Bluetooth Adapter? Is this device also TAA-compliant?
Yes, the Fluke 1736 and 1738 Three-Phase Power Quality Loggers work without using the WiFi or Bluetooth adapter and are TAA compliant.
Date published: 2023-10-05
Does the power logger 1738 measure DC current??
The Fluke 1736 and 1738 Three-Phase Power Quality Loggers cannot measure DC. If you are looking to measure DC current we suggest the Fluke 1770 Series Three-Phase Power Quality Analyzers with Fluke 80i-2010s AC/DC Current Clamps.
Date published: 2024-04-25
Rated 5 out of 5 by RBriggs from Great unit We upgraded to this from our older Hioki model. This works great. It is very simple to use and generate reports compared to our old unit.
Date published: 2023-01-24
Rated 1 out of 5 by mrat from Disappointed Have not used it yet, Sure it is great but didn't come with Current Probes, Got the higher model at higher price so you would assume you would get the test leads required to use it, even the website said comes with current probes. It was an extra $1000. Its like buying a car and you need to purchase the steering wheel.
Date published: 2021-06-15
Rated 5 out of 5 by efreak29 from Very Useful Tool! I use this for work (Generator Technician) and it does exactly what I need it to and when i look at the File back in the shop I can look at all the parameters it recorded. but there is still alot to learn about it
Date published: 2019-02-22