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The 1750 Power Recorder (hereafter referred to as the Recorder) complies with EN 61010-1 600 V CAT IV, 1000 V CAT III overvoltage rating. See Specifications for a full agency compliance list.
To avoid electrical shock, personal injury, or fire:
Symbols used in this manual and on the Recorder are listed in Table 1.
Table 1. Symbols
| Hazardous voltage. Risk of electrical shock. | | Risk of danger. Important information. See manual. |
![]() | Protective conductor terminal. | CAT III | CAT III equipment is designed to protect against transients in equipment in fixedequipment installations, such as distribution panels, feeders and short branch circuits, and lighting systems in large buildings. |
CAT IV | CAT IV equipment is designed to protect against transients from the primary supply level, such as an electricity meter or an overhead or underground utility service. |
Recorder and Power Analyze Software
General Specifications | ||
Power Quality Measurement Standards Conformance | IEC 61999-1-4 Class 1, IEC 61000-4-30 Class A or B depending on measurement function, IEEE519, IEEE1159, IEEE1459 | |
Clock/Calendar | Leap years, 24-hour clock | |
Real-time Clock Accuracy | Not more than ± 1 s/day | |
Internal Memory Capacity for Data | At least 1 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 V rms ± 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 inch) | |
Mass (Weight) | 6.3 kg (14 lbs) | |
Input Specifications | ||
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, 2 ½ Element Wye | |
Input Channels | Voltage: 5 channels, AC/DC Current: 5 channels | |
Voltage Channels | Input resistance: 2 MΩ Input capacitance: <20 pF | |
Current Channels | 1 MΩ. Self-identifying probes Types available: current clamps, 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 IEC61000-4-7: 2560 samples / 10 cycles (50 Hz), 3072 samples/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 V rms ± 10% Overrange DC voltage: ± 1000 V + 10% Overrange | |
Voltage Crest Factor | 3 or less | |
Voltage Input Impedance | 2 MΩ | |
Current Measurement Range | Depends on current probe used | |
Current Crest Factor | 4 or less | |
Current Input Characteristics | 2 V rms = full scale, 1 MΩ Input Impedance for ferro CTs, low impedance for Flexi-CTs | |
Voltage and Current Measurement Accuracy | ||
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 V rms DC: ± 0.5% reading ± 0.2% full scale above 50 V dc If the ac component of a dc signal is below 40 V rms, the dc uncertainty specification may have an offset. | |
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 | |
Measurement Uncertainty | ± (0.1% full scale + 0.5% reading + current sensor accuracy, valid for 5% to 100% of current sensor range | |
Current Accuracy | Ferromagnetic Clamps ± (0.1% full scale + 0.2% reading + current sensor accuracy), valid for 5% to 100% of current sensor range Flexible Current Probes ± (0.1% full scale + 0.5% reading + current sensor accuracy), valid for 5% to 100% of current sensor range | |
Transient Voltage (Impulse) | ||
Measurement Type | Waveshape sampling not peak detect | |
Full Scale | 8000 V pk | |
Sample Resolution | 200 nS | |
Measurement Uncertainty | ± 5% reading ± 20 V (test parameters: 1000 V dc, 1000 V rms, 100 kHz) | |
Dip (Sag) and Swell Measurements | ||
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 Accuracy | 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 Accuracy | Same as rms voltage | |
Voltage Dropout (Interruption) | ||
Measurement Type | Same as Voltage Dip | |
Power and PF Measurement | ||
Power | ||
Measurement Method | Calculated per IEEE1459 for best performance when distortions exist | |
Measurement Type | True rms calculated continuously: every cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by standards | |
Measurement Accuracy | ± 0.2% reading ± 0.1% full scale + current sensor accuracy | |
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) | |
Reactive Power | ||
Accuracy | ± 0.2% reading ± 0.1% full scale + current sensor accuracy | |
Power Factor | ||
Measurement Range | -1.000 (leading) to 0.000 to +1.000 (lagging) | |
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 0.000 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) | ||
Measurement Method | rectangular | |
Analysis Orders | 0.5 to 49.5th order | |
Measurement Method | IEC 61000-4-7 | |
External Interface Specifications | ||
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 | |
Environmental and Safety Specifications | ||
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 V rms | |
Voltage Durability | 5550 V rms 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 Conformance | ||
EMC | EN 61326-1:2000 Class A EN 61000-3-2:1995+A1:1998+A2:1998 EN 61000-3-3:1995 | |
Safety | EN 61010-1:2nd Edition Voltage input unit: Contamination Level 2 Measurement Category 1000 V CAT III, 600 V CAT IV (transient: 8 kV) |
To avoid damage to the Recorder, do not apply abrasives or solvents to the housing.
The Recorder contains no user serviceable parts. Contact an authorized Fluke service center for repair. See Contacting Fluke.
Periodically wipe the case with a damp cloth and mild detergent.
The following figures detail the assembly of cables used for calibrating the Recorder. See Figures 2-6.
Figure 2. Ground Calibration Cable
Figure 3. Rogowski Calibration Cable
Figure 4. Rogowski Resistor Measurement Cable
Figure 5. Voltage Calibration Cable
Figure 6. Current Calibration Cable
For a list of required equipment for the verification tests and calibration adjustment, see Tables 2 and 3.
Table 2. Required Equipment | ||
Equipment | Required Characteristics | Recommended Model |
Calibrator | AC Voltage Range: 0 - 1000 V ac Accuracy: ± 0.03 % Frequency Range: 50 - 10000 Hz DC Voltage Range: 0 - 1000 V dc Accuracy: ± 0.03% | Fluke 5520A Multi-Product Calibrator or equivalent |
Multimeter with 4-wire Ohms | Ohms Range: 100 KΩ Accuracy: ± 0.011% | Fluke 8846A Precision Multimeter or equivalent |
Personal Computer (PC) (Windows XP) | 1750 Cal Wizard and Fluke Power Analyze software installed |
The cables listed in Table 3 are necessary for verification and calibration adjustment. To assemble the cables, see cable assembly figures in the Test Cables section.
Table 3. Required Cables | ||
Cable | Required Characteristics | Notes |
Ethernet cable | CAT 5 with RJ-45 connectors | Supplied with the Recorder |
Voltage calibration cable with BNC-banana adapter | Double banana to safety banana and spade lug | See Figure 5 |
Four jumper cables, safety-banana type | ||
Current calibration cable | Shielded cable with double banana to CT pins in Redel connector with 100 A CT ID resistor | See Figure 6 |
Rogowski resistor measurement cable | Safety banana to Redel | See Figure 4 |
Rogowski calibration cable | Shielded cable with double banana to Rogowski pins in Redel connector with 100 A Rogowski ID resistor | See Figure 3 |
Ground calibration cable | Lug to banana | See Figure 2 |
Fluke recommends the use of Pomona brand cables and banana plugs when building these cables. |
To avoid electrical shock, personal injury, or fire:
The following tests are used to verify the functions of the Recorder. If the Recorder fails any of the verification tests, calibration or repair may be needed. For service, see Contacting Fluke.
Note
Power Analyze can be set to display the channels as L1, L2, and L3 instead of A, B, and C. The channels on the Recorder could also be labeled A, B, and C, or L1, L2, and L3, depending on which decal was applied to the Recorder front panel. For this manual A, B, and C are used.
Note
If the voltage goes over scale, right click on the voltage scale on the left margin of the graphical display, then click on the Zoom to Fit box to resize.
Table 4. AC Voltage Accuracy Verification | |||||
Applied | AN Reading | BN Reading | CN Reading | NG Reading | Limits |
60 Vrms @ Local Hz | ± 1.12 V | ||||
240 Vrms @ Local Hz | ± 1.48 V | ||||
600 Vrms @ Local Hz | ± 2.20 V |
Table 5. Neutral (AC) Voltage Accuracy Check | ||
Applied | NG Reading | Limits |
60 V @ Local Hz | ± 1.12 V | |
100 V @ Local Hz | ± 1.20 V |
Table 6. Rogowski Current Accuracy Check | ||||||||
Applied Voltage | Expected Current | Expected Reading | A Reading | B Reading | C Reading | N Reading | G Reading | Limits |
0.649 V | 6.49 μA | 20 A | ± 0.20 A | |||||
1.6225 V | 6.225 μA | 50 A | ± 0.35 A | |||||
3.245 V | 32.45 μA | 100 A | ± 0.60 A |
Table 7. CT Current Accuracy Check | |||||||
Applied Voltage | Expected Reading | A Reading | B Reading | C Reading | N Reading | G Reading | Limits |
0.4 V | 20 A | ± 0.20 A | |||||
1.0 V | 50 A | ± 0.35 A | |||||
2.0 V | 100 A | ± 0.60 A |
Initialize the UUT
The impulse verification steps instruct the user to apply working voltages in excess of 700 V, so extreme caution must be applied. To avoid electrical shock or personal injury, DO NOT use connectors having exposed metal.
Normalize Thresholds
Apply Stepped Verification Voltages to Voltage Inputs A, B, C, N, and
To Use Power Analyze to Verify the Amplitude Accuracy of Recorded Impulse Events
Table 8. Impulse Verification Inputs | ||||
Applie d Voltage [Vrms] | Expected Reading [Vpk] | Channel | Measured Magnitude |Vpk| | Limits [Vpk] |
800 | 1131 | AN (A) | ± 77 | |
850 | 1202 | BN (B) | ± 80 | |
900 | 1273 | CN (C) | ± 84 | |
950 | 1344 | NG (N) | ± 87 | |
1000 | 1414 | NG (G) | ± 91 |
The required equipment and cables for calibrating the Recorder are listed in Tables 2 and 3.
To avoid electrical shock, personal injury, or fire:
The Recorder features closed-case calibration adjustment using known reference sources. During calibration, the Recorder measures the applied reference source, calculates correction factors, and stores the correction factors in nonvolatile memory.
Perform calibration adjustment if the Recorder fails any performance test in the verification procedure.
Note
Calibration should be performed under ambient temperature conditions between 20 °C and 30 °C.
Calibration consists of four parts: I-Wave, I-Rogowski, V-Wave, and V-Impulse. Each part calibrates one measurement system in the Recorder. For each part, the calibration values are checked to be sure the Recorder is working correctly and calibration results are valid. All of the calibration steps for each of the four measurement systems must be completed before the calibration values can be written to the Recorder's nonvolatile memory.
I-Wave, I-Rogowski, and V-Wave channels are calibrated using 55 Hz sine wave signals to minimize 50 Hz or 60 Hz power line interference with the calibration measurements.
V-Impulse channels are calibrated using dc voltages, averaging calibration measurements to suppress power line interference.
Calibration is controlled by 1750 Cal Wizard Software (Cal Wizard), which communicates with the Recorder over Ethernet. Cal Wizard steps through the calibration procedure, with instructions for making cable connections, setting the correct sources, and finalizing the calibration.
The following steps detail the calibration adjustment procedure:
This concludes Recorder calibration.
To obtain warranty service, contact your nearest Fluke authorized service center to obtain return authorization information, then send the product to that service center, with a description of the difficulty, postage and insurance prepaid (FOB Destination).
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
To register your product online, visit http://register.fluke.com
To contact Fluke, call:
1-888-993-5853 in USA
1-800-363-5853 in Canada
+31-402-675-200 in Europe
+81-3-3434-0181 in Japan
+65-738-5655 in Singapore
+1-425-446-5500 from anywhere in the world
Or, visit Fluke's Web site at www.fluke.com
To register your product, visit http://register.fluke.com
To contact Technical Support:
fpqsupport@fluke.com
or 888-257-9897 (US only)
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
Download Fluke 1750, 1750-TF/NT C/W-4, 1750/NT, 1750/B/NT Manual
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