Datasheet

5 Fluke Corporation Fluke 1736 and 1738 Three-Phase Power Loggers
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 events
1
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 ...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
1
The number of possible logging sessions and logging period depends on user requirements.