# Fluke 1735 3 phase power quality logger

The Fluke 1735 Power Logger is the ideal electrician or technician's power meter for conducting energy studies and basic power quality logging. Set the Power Logger up in seconds with the included flexible current probes and color display. The power quality meter measures most electrical power parameters, harmonics, and captures voltage events.

Applications

- 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

Specifications | ||

General | Display |
¼ VGA Graphic Color transmissive displays 320 x 240 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 measuring data | |

Interface | RS-232 SUB-D socket; 115.2 k Baud, 8 data bits, no parity, 1 stop bit, firmware updates are possible with the RS- 232 interface (9-pole extension cable) | |

Sample rate | 10.24 kHz | |

Line frequency | 50 Hz or 60 Hz, user-selectable, with automatic synchronization | |

Power supply | NiMH battery-pack, with ac adapter (15 V to 20 V/0.8 A) | |

Operation time with battery | Typical > 12 hours without backlight and > 6 hours with backlight high | |

Dimensions | 240 mm x 180 mm x 110 mm | |

Weight | 1.7 kg, including battery | |

Ambient conditions | Working temperature range |
-10 °C to +50 °C |

Storage temperature range | -20 °C to +60 °C | |

Operating temperature range | 0 °C to +40 °C | |

Reference temperature range | 23 °C ± 2 °C | |

Note | The above terms are defined in European Standards. To calculate the specification at any point in the working temperature range, use the temperature coefficient below. | |

Temperature coefficient | ± 0.1 % of the measured value per °C from the reference | |

Intrinsic error | Refers to reference temperature, maximum deviation is guaranteed for two years | |

Operating error | Refers to operating temperature range, maximum deviation is guaranteed for two years | |

Climatic class | C1 (IEC 654-1) -5 °C to +45 °C, 5% to 95% RH, no dew | |

Housing | Cycoloy shock and scratch proof thermoplast V0-type (non-flammable) with rubber protection holster | |

EMC | Emission |
IEC/EN 61326-1:1997 class B |

Immunity | IEC/EN 61326-1:1997 | |

Safety | Safety |
IEC 61010-1 600 V CAT III, double or reinforced insulation, pollution degree 2 |

Protection | IP65; EN60529 (refers only to the main housing without the battery compartment) | |

RMS values are measured with a 20 ms resolution. | ||

V-rms wye measurement | Measuring range |
57 V/66 V/110 V/120 V/127 V/220 V/230 V/240 V/260 V/277 V/347 V/380 V/400 V/417 V/480 V ac |

Intrinsic error | ± (0.2% 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/208 V/220 V/380 V/400 V/415 V/450 V/480 V/600 V/660 V/690 V/720 V/830 V ac |

Intrinsic error | ± (0.2% 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 | |

Ranges |
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) | |

Ranges |
15 A | |

Intrinsic error | ± (0.5 % of m. v. + 20 digit) | |

Operating error | ± (1 % of m. v. + 20 digit) | |

The errors of the current probes are not considered. | ||

By using Flexi-set | Flexi Set measuring error |
± (2% of m. v. + 10 digit) |

Position influence | ± (3 % of m. v. + 10 digit) | |

CF (typical) | 2.83 | |

Note | When using Flexi Set please make sure to position the conductor opposite to the Flexi Set-lock | |

Power measurement (P - Active, S - Apparent, Q- Reactive, D - Distorting | Measuring range |
see V rms and A rms measurement |

Power errors are calculated by adding the errors of voltage and current | ||

Additional error due to power factor PF | ||

Specified error x (1-[PF]) | ||

Maximum range with voltage range 830 V delta-connection and 3000 A current range is 2.490 MW, higher displayed values possible when using PTs and CTs with ratio feature | ||

Intrinsic error | ± (0.7 % of m.v. +15 digit) | |

Resolution | 1 kW | |

Operating error | ± (1.5 % of m.v. + 20 digit) | |

Typical range with voltage range 230 V wye connection and 150 A current range is 34.50 KW. | ||

Intrinsic error | ± (0.7 % of m.v. +15 digit) | |

Resolution | 1 W to 10 W | |

Operating error | ± (1.5 % of m.v. + 20 digit) | |

The errors of the current sensors themselves have not been considered. | ||

Energy measurement (kWh, KVAh, kVARh) | Intrinsic error |
± (0.7 % of m.v.+ F variation error* + 15 digit) |

Resolution | 1 W to 10 W | |

Operating error | ± (1.5 % of m.v. + F variation error* + 20 digit) | |

*Frequency variation error | ||

PF (Power factor) | Range |
0.000 to 1.000 |

Resolution | 0.001 | |

Accuracy | ±1 % of full scale | |

Frequency measurement | Measuring range |
46 Hz to 54 Hz and 56 Hz to 64 Hz |

Intrinsic error | ± (0.2 % of m. v. + 5 digit) | |

Operating error | ± (0.5 % of m. v.+ 10 digit) | |

Resolution | 0.01 Hz | |

Harmonics | Measuring range |
To 50th harmonic (< 50 % of nom) |

Accuracy | Vm, Im, THDV, THDI |
IEC 61000-4-7:2002, Class II |

Vm ≥ 3% Vn | ± 5% Vm | |

Vm < 3 % Vnom | ±0.15% Vnom | |

Im ≥ 10 % Inom | ± 5% Im | |

Im < 10 % Inom | ± 0 5% Inom | |

THDV | for THD < 3% ± 0.15% at Vnom | |

for THD ≥ 3% ± 5% at Vnom | ||

THDI | for THD < 10% ± 0.5% at Inom | |

for THD ≥ 10% ± 5% at Inom | ||

Vnom | Normal voltage range | |

Inom | Nominal current range | |

Vm and Im are measured values of harmonic m | ||

Events | Detection of voltage dips, voltage swells and voltage interruptions with a 10 ms resolution and measuring error of the half period sine wave of rms. | |

Intrinsic error | ± (1% of m.v. + 10 digit) | |

Operating error | ± (2% of m.v. + 10 digit) | |

Resolution | 0.1 V |