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Fluke 1735
3-Phase Power Logger
See: 1736B

  • Record power and associated parameters for up to 45 days
  • Monitor maximum power demand over user-defined averaging periods
  • Prove the benefit of efficiency improvements with energy consumption tests
  • Measure harmonic distortion caused by electronic loads
  • Improve reliability by capturing voltage dips and swells from load switching
  • Easily confirm instrument setup with color display of waveforms and trends
  • Measure all three phases and neutral with included 4 flexible current probes
  • View graphs and generate reports with included Power Log software
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Product Information
Tech Notes 694 KB Click on the link to open the PDF in a new window
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Ordering Info Jump to Product Models, Prices, Accessories, and Ordering Information
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The Fluke 1735 Power Logger is the ideal electrician or technician's tool for conducting energy studies and basic power quality logging. Set up the Fluke 1735 in seconds, with the included flexible current probes and color display. The Fluke 1735 logs most electrical power parameters, harmonics and captures voltage events.

Load studies – verify electrical system capacity before adding loads
Energy assessments – quantify energy consumption before, and after improvements, to justify energy saving devices
Harmonics measurements – uncover harmonic issues that can damage or disrupt critical equipment
Voltage event capture – monitor for dips and swells that cause spurious resets or nuisance circuit breaker tripping

Log the most common parameters
Designed to measure the most critical three-phase power parameters, the Fluke 1735 can log rms voltage, rms current, phase angle, voltage events, voltage and cur-rent THD, voltage and current harmonics up to the 50th, active power, reactive power, power factor, active energy, reactive energy, and more. With memory for up to 45 days of data, the Fluke 1735 can uncover intermittent or hard-to-find issues.

Easy to use
The four current probes are connected with one plug, the instrument automatically detects, scales and powers the probes. These variable range current probes are easily set to 15 A, 150 A, or 3000 A for high accuracy in nearly any application. The voltage connections are single leads, enabling easy and quick setups. The color screen provides instant confirmation that connections are correct, and then logging begins when you press the RECORD button.


Display ¼ VGA Graphic Color transmissive displays 3 0 x 40 Pixel with additional background lighting and adjustable contrast, text and graphics in color
Quality Developed, designed and manufactured according to DIN ISO 9001
Memory 4 MB Flash memory, 3.5 MB for logging data
Interface RS- 3 SUB-D socket; 115. k Baud, 8 data bits, no parity, 1 stop bit, firmware updates are possible with the RS- 3 interface (9-pole extension cable)
Sample rate 10. 4 kHz
Line frequency 50 Hz or 60 Hz, user-selectable, with automatic synchronization
Power supply NiMH battery-pack, with ac adapter (15 V to 0 V/0.8 A)
Operation time with battery Typical > 1 hours with backlight low and > 6 hours with backlight high
V-rms wye Measurement
Measuring Range 57 V/66 V/110 V/1 0 V/1 7 V/ 0 V/ 30 V/ 40 V/ 60 V/ 77 V/347 V/ 380 V/400 V/417 V/480 V ac
Intrinsic Error ± (0. % of measured value. + 5 digits)
Operating Error ± (0.5 % of m. v. + 10 digit)
Resolution 0.1 V
V-rms Delta Measurement
Measuring Range 100 V/115 V/190 V/ 08 V/ 0 V/380 V/ 400 V/415 V/450 V/480 V/600 V/ 660 V/690 V/7 0 V/830 V ac
Intrinsic Error ± (0. % of m. v. + 5 digit)
Operating Error ± (0.5 % of m. v. + 10 digit)
Resolution 0.1 V
A-rms Measurement
Flexi Set I Ranges 15 A/150 A/3000 A rms (at sine)
Current clamp ranges 1 A/10 A
Resolution 0.01 A
(150 A/3000 A and 1 A/10 A)
Intrinsic error: ± (0.5 % of m. v. + 10 digit)
Operating error: ± (1 % of m. v. + 10 digit)
Intrinsic error: ± (0.5 % of m. v. + 0 digit)
Operating error: ± (1 % of m. v. + 0 digit)
Ordering Information
Model Description Buy Online Price
MFR ID: 2583398
Fluke 1735 Three-Phase Power Quality Logger Discontinued
See: 1736B
Included Accessories
  • 1 - Soft Carrying Case
  • 4 - Flexible current probes (15A/150A/3000A)
  • 1 - Power Log Software
  • 1 - Voltage leads and clips
  • 1 - Color localization set
  • 1 - PC interface cable
  • 1 - Universal AC adapter
  • 1 - Printed English Manual
  • 1 - Multi-language manual CD
Optional Accessories
Cases and Holsters
MFR ID: 3671726
Fluke USB Cable USB 2.0 Connection Cable; Mini USB B5 Male to USB A Male for the 1735 3-Phase Power Logger Buy Now Sale $18.19
(Reg. $19.99)
MFR ID: 3276205
Fluke VL1735/45 Banana 4-phase Voltage Lead set for the Fluke 1735 and 1745 Buy Now Sale $314.99
(Reg. $349.99)
Current Clamps
MFR ID: 4531791
Fluke FS17X5-TF-II Fluke 1735 and 1745 Power Logger 3000A 4-PH Thin Flexi Set Buy Now $1,799.99
MFR ID: 4531804
Fluke FS17XX IP65-TF-II 3000A IP65 4-PH FLUKE 1743/4 Thin Flexi Set Buy Now $1,999.99
MFR ID: 3024413
Fluke I1A/10A CLAMP PQ3 3-Phase 1A/10A Mini Current Clamp Set for Power Quality Buy Now Sale $629.99
(Reg. $699.99)
MFR ID: 3024424
Fluke I1A/10A CLAMP PQ4 4-Phase 1A/10A Mini Current Clamp Set for Power Quality Buy Now Sale $809.99
(Reg. $899.99)
Extended Warranty CarePlans
MFR ID: 4112866
Fluke G2P-GROUP4 Gold CarePlan - Extends warranty from 2 to 4 yrs & includes annual NIST calibration Buy Now $1,099.99
MFR ID: 4112894
Fluke S2P-GROUP4 Silver CarePlan - Extends warranty from two to four years Buy Now Sale $337.49
(Reg. $374.99)