Fluke
1738/EUS
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- Part Number
- 1738/EUS
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Current Inputs
- Bandwidth (-3 dB)
- 42.5 Hz - 3.5 kHz
- Range
- 3 A to 300 A/30 A to 3000 A with thin flexible current probe i17XX-flex3000 24"
- Input voltage
- Clamp input: 500 mVrms/50 mVrms; CF 2.8
- Range
- 1 A to 150 A/10 A to 1500 A with thin flexible current probe i17XX-flex1500 12"
- 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
- Scaling
- 1:1 and variable
- Range
- 40 mA to 4 A/0.4 A to 40 A with 40 A clamp i40s-EL
- Rogowski coil input
- 150 mVrms/15 mVrms at 50 Hz, 180 mVrms/18 mVrms at 60 Hz; CF 4; all at nominal probe range
Wireless Connection
- Number of inputs
- 2
- Supported modules
- Fluke Connect® 3000 series
- Acquisition
- 1 reading/s
Data Acquisition
- Memory size
- Typical 10 logging sessions of 8 weeks with 1-minute intervals and 500 events¹
- Input signal frequency
- 50/60 Hz (42.5 to 69 Hz)
- Memory size
- ¹The number of possible logging sessions and logging period depends on user requirements.
- 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)
- Resolution
- 16-bit synchronous sampling
Auxiliary Inputs
- Input range
- 0 to ±10 V dc, 1reading/s
- 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
Standards Compliance
- Harmonics
- IEC 61000-4-7: Class 1
- Power quality compliance
- EN50160 (for measured parameters)
- Power quality
- IEC 61000-4-30 Class S, IEC62586-1 (PQI-S device)
- Power
- IEEE 1459
- Harmonics
- IEEE 519 (short time harmonics)
Voltage Inputs
- Measurement category
- 1000 V CAT III/600 V CAT IV
- Bandwidth (-3 dB)
- 42.5 Hz - 3.5 kHz
- Input impedance
- 10 MΩ
- Scaling
- 1:1 and variable
- Maximum input voltage
- 1000 Vrms, CF 1.7
- Number of inputs
- 4 (3 phases and neutral)
Basic Interval
- Measured parameters
- Voltage, current, aux, frequency, THD V, THD A, power, power factor, fundamental power, DPF, energy
- Averaging time min/max values
- Voltage, Current: Full cycle RMS updated every half cycle (URMS1/2 according to IEC61000-4-30 Aux, Power: 200ms
- 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
- 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
- USB-mini
- Data download device to PC
Environmental Specifications
- Safety
- IEC 61010-2-031: CAT IV 600 V / CAT III 1000 V
- Safety
- Voltage Terminals: Overvoltage Category IV, Pollution Degree 2
- Vibration
- MIL-T-28800E, Type 3, Class III, Style B
- Temperature coefficient
- 0.1 x accuracy specification/°C
- Operating altitude
- 2000 m (up to 4000 m derate to 1000 V CAT II/600 V CAT III/300 V CAT IV)
- 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
- 30 °C to 40 °C (86 °F to 104 °F) max. 75% RH
- Operating temperature
- -10 °C to +50 °C (14 °F to 122 °F)
- Operating humidity
- 40 °C to 50 °C (104 °F to 122 °F) max. 45% RH
- Safety
- IEC Mains Input: Overvoltage Category II, Pollution Degree 2
- Storage altitude
- 12,000m
- Electromagnetic compatibility
- USA (FCC): 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103
- Electromagnetic compatibility
- EN 61326-1: Industrial CISPR 11: Group 1, Class A
- Electromagnetic compatibility
- Korea (KCC): Class A Equipment (industrial broadcasting and communication equipment)
- Operating humidity
- 10 °C to 30 °C (50 °F to 86 °F) max. 95% RH
- Enclosure
- IP50 in accordance with EN60529
- Safety
- IEC 61010-1
Electrical Specifications
- Efficiency
- ≥ 68.2% (in accordance with energy efficiency regulations)
- Maximum no-load consumption
- < 0.3 W only when powered using IEC 60320 input
- Battery
- Li-ion 3.7 V, 9.25 Wh, customer-replaceable
- Mains power frequency
- 50/60 Hz ±15%
- Voltage range
- 100 V to 500 V using safety plug input when powering from the measurement circuit
- 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 consumption
- Maximum 50 VA (max. 15 VA when powered using IEC 60320 input)
- Charging time
- < 6 hours
Power Quality Measurements
- Triggered recordings
- Full cycle RMS updated every half cycle of voltage and current (Urms1/2 according to IEC61000-4-30)
- Measured parameter
- Voltage, frequency, unbalance, voltage harmonics, THD V, current, harmonics, THD A, TDD
- Individual harmonics
- 2nd to 50th harmonic
- Events
- Voltage: dips, swells, interruptions, current: inrush current
- Total harmonic distortion
- Calculated on 50 harmonics
- Triggered recordings
- Waveform of voltage and current
- Averaging interval
- 10 min
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
General Specifications
- 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)
- Dimensions
- Instrument: 19.8 cm x 16.7 cm x 5.5 cm (7.8 in x 6.6 in x 2.2 in)
- Warranty
- Accessories: one-year
- Warranty
- Calibration cycle: two-years
- Weight
- Power supply: 400 g (0.9 lb)
- 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)
- Color LCD display
- 4.3-inch active matrix TFT, 480 pixels x 272 pixels, resistive touch panel
- Weight
- Instrument: 1.1 kg (2.5 lb)
- Tamper protection
- Kensington lock slot
- Warranty
- Instrument and power supply: Two-years (battery not included)
i17xx-flex 1500 12" Flexible Current Probe Specifications
- Output cable
- TPR/PVC
- Measuring range
- 1 to 150 A ac/10 to 1500 A ac
- Intrinsic error at reference condition*
- ±0.7% of reading
- Output cable length
- 2 m (6.6 ft)
- Working voltage
- 1000 V CAT III, 600 V CAT IV
- Operating temperature
- -20 °C to +70 °C (-4 °F to 158 °F) temperature of conductor under test shall not exceed 80 °C (176 °F)
- Probe cable diameter
- 7.5 mm (0.3 in)
- Warranty
- Reference condition: Environmental: 23 °C ±5 °C, no external electrical/magnetic field, RH 65% Primary conductor in center position
- Probe cable length
- 305 mm (12 in)
- Probe cable material
- TPR
- Nondestructive current
- 100 kA (50/60 Hz)
- Coupling material
- POM + ABS/PC
- Temperature, non-operating
- -40 °C to +80 °C (-40 °F to 176 °F)
- Warranty
- One-year
- Temperature coefficient over operating temperature range
- 0.05% of reading/°C 0.09% of reading/°F
- Minimum bending radius
- 38 mm (1.5 in)
- Accuracy 173x + iFlex
- ±(1% of reading + 0.02% of range)
- Relative humidity, operating
- 15% to 85% non-condensing
- Weight
- 115 g
- IP rating
- IEC 60529:IP50
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