Fluke

1738/INTL

The Fluke 1738 power logger is ideal for conducting energy studies and more advanced power quality analysis.
1738/INTL
1738/INTL
1738/INTL
1738/INTL
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Current Inputs

Bandwidth (-3 dB)
42.5 Hz - 3.5 kHz
Input voltage
Clamp input: 500 mVrms/50 mVrms; CF 2.8
Range
6 A to 600 A/60 A to 6000 A with thin flexible current probe i17XX-flex6000 36"
Number of inputs
4, mode selected automatically for attached sensor
Range
3 A to 300 A/30 A to 3000 A with thin flexible current probe i17XX-flex3000 24"
Range
40 mA to 4 A/0.4 A to 40 A with 40 A clamp i40s-EL
Range
1 A to 150 A/10 A to 1500 A with thin flexible current probe i17XX-flex1500 12"
Rogowski coil input
150 mVrms/15 mVrms at 50 Hz, 180 mVrms/18 mVrms at 60 Hz; CF 4; all at nominal probe range
Scaling
1:1 and variable

Wireless Connection

Acquisition
1 reading/s
Number of inputs
2
Supported modules
Fluke Connect® 3000 series

Data Acquisition

Resolution
16-bit synchronous sampling
Memory size
Typical 10 logging sessions of 8 weeks with 1-minute intervals and 500 events¹
Memory size
¹The number of possible logging sessions and logging period depends on user requirements.
Input signal frequency
50/60 Hz (42.5 to 69 Hz)
Sampling frequency
10.24 kHz at 50/60 Hz, synchronized to mains frequency
Data storage
Internal flash memory (not user replaceable)
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)

Auxiliary Inputs

Number of inputs
2
Displayed units (available 2014)
User configurable (7 characters, for example, °C, psi, or m/s)
Scale factor (available 2014)
Format: mx + b (gain and offset) user configurable
Input range
0 to ±10 V dc, 1reading/s

Standards Compliance

Power
IEEE 1459
Harmonics
IEEE 519 (short time harmonics)
Harmonics
IEC 61000-4-7: Class 1
Power quality
IEC 61000-4-30 Class S, IEC62586-1 (PQI-S device)
Power quality compliance
EN50160 (for measured parameters)

Voltage Inputs

Maximum input voltage
1000 Vrms, CF 1.7
Number of inputs
4 (3 phases and neutral)
Measurement category
1000 V CAT III/600 V CAT IV
Input impedance
10 MΩ
Bandwidth (-3 dB)
42.5 Hz - 3.5 kHz
Scaling
1:1 and variable

Basic Interval

Averaging time min/max values
Voltage, Current: Full cycle RMS updated every half cycle (URMS1/2 according to IEC61000-4-30 Aux, Power: 200ms
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

Interfaces

USB-A
File transfer via USB flash drive, firmware updates Max. current: 120 mA
USB-mini
Data download device to PC
Bluetooth
Read auxiliary measurement data from Fluke Connect® 3000 series modules (requires 1738 or 1736 upgrade option)
WiFi
File transfer and remote control via direct connection or WiFi infrastructure

Environmental Specifications

Operating temperature
-10 °C to +50 °C (14 °F to 122 °F)
Vibration
MIL-T-28800E, Type 3, Class III, Style B
Electromagnetic compatibility
USA (FCC): 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103
Safety
IEC 61010-2-031: CAT IV 600 V / CAT III 1000 V
Operating altitude
2000 m (up to 4000 m derate to 1000 V CAT II/600 V CAT III/300 V CAT IV)
Operating humidity
30 °C to 40 °C (86 °F to 104 °F) max. 75% RH
Electromagnetic compatibility
Korea (KCC): Class A Equipment (industrial broadcasting and communication equipment)
Safety
Voltage Terminals: Overvoltage Category IV, Pollution Degree 2
Safety
IEC 61010-1
Temperature coefficient
0.1 x accuracy specification/°C
Electromagnetic compatibility
EN 61326-1: Industrial CISPR 11: Group 1, Class A
Operating humidity
40 °C to 50 °C (104 °F to 122 °F) max. 45% RH
Storage altitude
12,000m
Enclosure
IP50 in accordance with EN60529
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
Safety
IEC Mains Input: Overvoltage Category II, Pollution Degree 2

Electrical Specifications

Voltage range
100 V to 500 V using safety plug input when powering from the measurement circuit
Battery
Li-ion 3.7 V, 9.25 Wh, customer-replaceable
Maximum no-load consumption
< 0.3 W only when powered using IEC 60320 input
Power consumption
Maximum 50 VA (max. 15 VA when powered using IEC 60320 input)
Efficiency
≥ 68.2% (in accordance with energy efficiency regulations)
Charging time
< 6 hours
Mains power frequency
50/60 Hz ±15%
On-battery runtime
Four hours in standard operating mode, up to 5.5 hours in power saving mode
Voltage range
100 V to 240 V using standard power cord (IEC 60320 C7)

Power Quality Measurements

Individual harmonics
2nd to 50th harmonic
Total harmonic distortion
Calculated on 50 harmonics
Measured parameter
Voltage, frequency, unbalance, voltage harmonics, THD V, current, harmonics, THD A, TDD
Triggered recordings
Waveform of voltage and current
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)
Averaging interval
10 min

Demand Interval (Energy Meter Mode)

Interval
User selectable: 5 min, 10 min, 15 min, 20 min, 30 min, off
Measured parameters
Energy (Wh, varh, VAh), PF, maximum demand, cost of energy

General Specifications

Weight
Power supply: 400 g (0.9 lb)
Dimensions
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)
Warranty
Accessories: one-year
Dimensions
Power supply: 13.0 cm x 13.0 cm x 4.5 cm (5.1 in x 5.1 in x 1.8 in)
Weight
Instrument: 1.1 kg (2.5 lb)
Color LCD display
4.3-inch active matrix TFT, 480 pixels x 272 pixels, resistive touch panel
Warranty
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)
Tamper protection
Kensington lock slot
Warranty
Instrument and power supply: Two-years (battery not included)

i17xx-flex 1500 12" Flexible Current Probe Specifications

Warranty
Reference condition: Environmental: 23 °C ±5 °C, no external electrical/magnetic field, RH 65% Primary conductor in center position
Weight
115 g
Coupling material
POM + ABS/PC
Temperature coefficient over operating temperature range
0.05% of reading/°C 0.09% of reading/°F
IP rating
IEC 60529:IP50
Warranty
One-year
Probe cable diameter
7.5 mm (0.3 in)
Measuring range
1 to 150 A ac/10 to 1500 A ac
Nondestructive current
100 kA (50/60 Hz)
Output cable length
2 m (6.6 ft)
Probe cable material
TPR
Working voltage
1000 V CAT III, 600 V CAT IV
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)
Intrinsic error at reference condition*
±0.7% of reading
Minimum bending radius
38 mm (1.5 in)
Probe cable length
305 mm (12 in)
Accuracy 173x + iFlex
±(1% of reading + 0.02% of range)
Relative humidity, operating
15% to 85% non-condensing