Fluke 1750-TF

Power Measurements

Power, battery life Measurement type

True RMS calculated continuously: every cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by standards

Frequency Measurement range

42.5 to 69 Hz

Frequency Measurement source

Same as PLL synchronization source

Frequency Measurement accuracy

±10 mHz (10 to 110% of range, with sine wave)

Power factor Measurement range

0.000 to 1.000

Power factor Measurement accuracy

±1 digit from the calculation of each measured value (±3 digits for total)

Displacement power factor Measurement method

Calculated from the phase difference between voltage fundamental and current fundamental

Displacement power factor Measurement range

1.000 (leading) to + 1.000 (lagging)

Displacement power factor Measurement accuracy

±0.5% reading ±2% full scale ±1 digit

Voltage unbalance and phase sequence Measurement method

Positive sequence voltage divided by negative sequence voltage, per IEC 61000-4-30

Harmonic voltage and current

Analysis window: rectangular

Harmonic voltage and current Analysis order

1st to 50th order

Harmonic voltage and current Measurement accuracy

Voltage / Current: 1st to 20th orders: ±0.5% reading ±0.2% full scale, 21st to 50th orders: ±1% reading ±0.3% full scale (current sensor accuracy must be included for current and power)

Harmonic voltage and current Measurement method

IEC 61000-4-7

Inter-harmonic voltage and current (intermediate harmonics)

Analysis window: rectangular

Inter-harmonic voltage and current (intermediate harmonics) Analysis orders

1.5 to 49.5th order

Inter-harmonic voltage and current (intermediate harmonics) Measurement method

IEC 61000-4-7

Flicker Measurement method

IEC 61000-4-15 || Plt for 2 hours and Pst for 10 minutes

Flicker

Measuring range: 0, 1 to 5 (25) depending on voltage level, modulation and frequency

Technical Specifications

Power quality measurement standards Conformance

IEC 61999-1-4 Class 1, IEC 61000-4-30 Class A, S or B depending on measurement function, IEEE519, IEEE1159, IEEE1459 and EN50160

Power quality measurement standards Clock/calendar

Leap years, 24-hour clock

Power quality measurement standards Real-time clock accuracy

Not more than ±1 s/day

Power quality measurement standards Internal memory capacity for data

At least 2 GB

Power quality measurement standards

Maximum recording period: At least 31 days || Operating time during interruptions (internal UPS operation): 5 minutes per interruption, 60 minutes total operating time without recharging

Power quality measurement standards Measurement time control

Automatic

Power quality measurement standards Maximum number of events

Limited only by the size of the internal memory

Power quality measurement standards Power requirements

100 to 240 Vrms ±10%, 47-63 Hz, 40 W

Power quality measurement standards Dimensions

215 x 310 x 35 mm (8.5 x 12.2 x 3.5 in)

Power quality measurement standards Mass (weight)

6.3 kg (14 lb)

Input Measurement types

One Phase Plus Neutral, One Phase IT No Neutral, One Phase Split Phase, Three Phase Wye, Three Phase Delta, Three Phase IT, Three Phase High Leg, Three Phase Open Leg, 2 Element Delta, 21/2 Element Wye

Input Input channels

Voltage: 4 channels, AC/DC || Current: 5 channels

Input

Voltage channels: Input resistance: 2 MΩ || Voltage channels: Input capacitance: < 20 pF || Current input characteristics: 2 Vrms = full scale, 1 MΩ Input Impedance for ferro CTs, low impedance for Flexi-CTs || Measuring method: Simultaneous digital sampling of voltage and current. Digital PLL synchronized sampling, internal frequency reference used during voltage drops.

Synchronization and sampling PLL-synchronization source

The PLL synchronizes to the A-N voltage for wye power types, and to the A-B voltage for delta power types. All listed power types can be characterized as either wye or delta.

Synchronization and sampling PLL lock range

42.5 to 69 Hz

Synchronization and sampling

Sampling frequency: Voltage and current: 256 samples/cycle Inter-harmonics per IEC 61000-4-7: 2560 points / 10 cycles (50 Hz), 3072 points / 12 cycles (60 Hz) Transient Voltage: 5 MHz

Synchronization and sampling A/D resolution

Voltage and current: 24 bits || Transient voltage: 14 bits

Voltage and current measurements

Voltage measurement range: AC voltage: 1000 Vrms ±10% over range || Voltage measurement range: DC voltage: ±1000 V + 10% over range || Voltage crest factor: 3 or less

Voltage and current measurements Current measurement range

Depends on current probe used

Voltage and current measurements Current crest factor

4 or less

RMS voltage Measurement type

True RMS calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by IEC 61000-4-30.

RMS voltage

Measurement uncertainty: AC: ±0.2% reading ±0.1% full scale, above 50 Vrms || Measurement uncertainty: DC: ±0.5% reading ±0.2% full scale, above 50 VDC

RMS current Measurement type

True RMS calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by standards

Transient voltage (impulse) Measurement type

Waveshape sampling

Transient voltage (impulse) Full scale

8000 V pk

Transient voltage (impulse) Sample resolution

200 nS

Transient voltage (impulse)

Measurement uncertainty: ±5% reading ±20 V (test parameters: 1000 VDC, 1000 Vrms, 100 kHz)

Voltage swell (rms swell) Measurement type

True RMS (one cycle calculation by overlapping each half cycle - voltage between lines is measured for 3P3W lines and phase voltage is measured for 3P4W lines)

Voltage swell (rms swell) Displayed data

Amplitude and duration of swell

Voltage swell (rms swell) Measurement

Same as rms voltage

Voltage dip (rms sag) Measurement type

True RMS (one cycle calculation by overlapping each half cycle - voltage between lines is measured for 3P3W lines and phase voltage is measured for 3P4W lines)

Voltage dip (rms sag) Displayed data

Amplitude and duration of dip or interruption

Voltage dip (rms sag) Measurement

Same as rms voltage

Voltage dropout (interruption) Measurement type

Same as voltage dip

LAN interface Connector

RJ-45

LAN interface Speed and type

10/100 Base-T, auto MDIX

LAN interface

Communications protocol: TCP/IP over Ethernet

Wireless controller interface Connection

wireless (2.4 GHz radio)

Wireless controller interface Speed

up to 700 kbit/second

Wireless controller interface

Communications protocol: Bluetooth SPP

Environmental Specifications

Environmental

Operating environment: Indoors or in covered area outdoors, up to 2000 m altitude || Operating temperature and humidity: 0°C to 40°C, 80% RH max, non-condensing

Environmental Storage temperature and humidity

-20°C to 50°C, 80% RH max, non-condensing

Maximum rated working voltage

Voltage terminals: 1100 Vrms || Voltage durability: 5550 Vrms AC for 1 minute, between voltage input terminals, voltage input terminals and current probes, and voltage input terminals and case (50/60 Hz, 1 mA sense current)

Maximum rated working voltage Enclosure protection

IP30 (per EN 60529)

Standards EMC

EN 61326-1:1997+A1:1998 Class A || EN 61000-3-2:1995+A1:1998+A2:1998 || EN 61000-3-3:1995

Documents