Specifications: Fluke 1750-TF Three-Phase Power Quality Recorder
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 |
Clock/calendar | Leap years, 24-hour clock | |
Real-time clock accuracy | Not more than ±1 s/day | |
Internal memory capacity for data | At least 2 GB | |
Maximum recording period | At least 31 days | |
Measurement time control | Automatic | |
Maximum number of events | Limited only by the size of the internal memory | |
Power requirements | 100 to 240 Vrms ±10%, 47-63 Hz, 40 W | |
Operating time during interruptions (internal UPS operation) | 5 minutes per interruption, 60 minutes total operating time without recharging | |
Dimensions | 215 x 310 x 35 mm (8.5 x 12.2 x 3.5 in) | |
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 channels | Voltage: 4 channels, AC/DC | |
Current: 5 channels | ||
Voltage channels | Input resistance: 2 MΩ | |
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. |
PLL lock range | 42.5 to 69 Hz | |
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 | |
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 |
DC voltage: ±1000 V + 10% over range | ||
Voltage crest factor | 3 or less | |
Current measurement range | Depends on current probe used | |
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. |
Measurement uncertainty | AC: ±0.2% reading ±0.1% full scale, above 50 Vrms | |
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 |
Full scale | 8000 V pk | |
Sample resolution | 200 nS | |
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) |
Displayed data | Amplitude and duration of 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) |
Displayed data | Amplitude and duration of dip or interruption | |
Measurement | Same as rms voltage | |
Voltage dropout (interruption) | Measurement type | Same as voltage dip |
LAN interface | Connector | RJ-45 |
Speed and type | 10/100 Base-T, auto MDIX | |
Communications protocol | TCP/IP over Ethernet | |
Wireless controller interface | Connection | wireless (2.4 GHz radio) |
Speed | up to 700 kbit/second | |
Communications protocol | Bluetooth SPP | |
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 |
Measurement source | Same as PLL synchronization source | |
Measurement accuracy | ±10 mHz (10 to 110% of range, with sine wave) | |
Power factor | Measurement range | 0.000 to 1.000 |
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 |
Measurement range | – 1.000 (leading) to + 1.000 (lagging) | |
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 |
Analysis order | 1st to 50th order | |
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) | |
Measurement method | IEC 61000-4-7 | |
Inter-harmonic voltage and current (intermediate harmonics) | Analysis window | rectangular |
Analysis orders | 1.5 to 49.5th order | |
Measurement method | IEC 61000-4-7 | |
Flicker | Measurement method | IEC 61000-4-15 |
Plt for 2 hours and Pst for 10 minutes | ||
Measuring range | 0, 1 to 5 (25) depending on voltage level, modulation and frequency | |
Environmental Specifications | ||
Environmental | Operating environment | Indoors or in covered area outdoors, up to 2000 m altitude |
Storage temperature and humidity | -20°C to 50°C, 80% RH max, non-condensing | |
Operating temperature and humidity | 0°C to 40°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) | |
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 | ||
Safety | EN 61010-1 2 nd Edition; 2 000 | |
Voltage input unit: Contamination Level 2 , Overvoltage Category 1000 V CAT III, 600 V CAT IV (anticipated overvoltage: 8000 V) |